SCHROEDER - Compensating Bypass Checks - Pump-Protection-Brochure1-2
SCHROEDER - Compensating Bypass Checks - Pump-Protection-Brochure1-2
SCHROEDER - Compensating Bypass Checks - Pump-Protection-Brochure1-2
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INFO INFO 1
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In case of pump protection the SR/SA-type is Please transmit the following data for a particular The Compensating Bypass Check Valve is a pump pumps and plant data. Please transmit the following
highly associated with modern process control and valve design to: protection device. It automatically protects centrifu- data for a particular valve design to:
PRQLWRULQJ V\VWHPV DV WKH PLQLPXP ÀRZ FDQ Schroeder Valves GmbH & Co. KG gal pumps from damage which might occur through
be precisely adjusted to customers resp. plant )D[ partial evaporation of the pump contents during low Schroeder Valves GmbH & Co. KG
requirements. info@schroeder-valves.com load operation. Every Compensating Bypass Check )D[
Valve is designed particularly for the necessary info@schroeder-valves.com
1. Type of power SR SA Preferred company and type: 1. Non return valve in the bypass branch * no yes
1.1 electric 2. Installation * vertical horizontal
1.2 pneumatic 3. Variable Pump Speed * no yes
1.3 hydraulic
4. Medium *
1.4 medium conrolled (only SA)
5. Density * [kg/m3]
2. Accessories
6. Operating Temperature * [°C] [°F]
3. Technical Data 4. Preferred type 7. Standards * DIN ANSI Other
Pressure rate pD [bar] angle type
8. Max. Capacity Qmax [m3/h]
Temperature TD [°C] z-type
9. Design Capacity Q100% * [m3/h]
Medium straight through
10. Total Head at Q100% * [m]
Density [kg/m3]
11. Bypass Flow QBy * [m3/h]
5. Process data
12. Total Head at QBy * [m]
Loading condition I II III IV
13. Pump inlet pressure * [bar]
Flow rate Q [m3/h]
Inlet pressure pi [bar] 14. Back pressure on bypass branch [bar]
'LIIHUHQWLDOSUHVVXUH ǻSmax [bar] 16. Valve Flange size / rating inlet outlet bypass
Inlet temperature Ti [°C] 17. Valve Flange sealing
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INFO INFO 1
&RPSDULVRQRIHFRQRP\
3URFHVVGDWD (FRQRP\GDWD
ÀXLGWHPSHUDWXUH water, 134 °C operating time p.a. 330 days per 24h
density in operat. temp. 0.93 kg/dm3 cost of energy ¼N:K
RSHUDWLQJÀRZ4100% 63 m3/h
head in Q100% 288 m
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SXPSGDWD ÀRZ WRWDOKHDG HI¿FLHQF\IDFWRU NPSHR
PLQLPXPÀRZ4By 3
12 m /h 325 m 0.38 1.7 m
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SXPSSRZHUDWPLQLPXPÀRZ3QBy 26 kW 26 kW – Our Special-Compensating Bypass Check Valves and All pressure holding parts of our products are built from
energy costs (p.a.)
10,300,- E 10,300,- E –
our Multiport Throttles are designed according to the PDWHULDOVZLWKDFHUWL¿FDWH
DWPLQLPXPÀRZ4By
AD 2000 Standard (e.g. in calculation and choice of
SXPSSRZHUDWRSHUDWLQJÀRZ3Q100% 72 kW 63 kW N:
material). For all products you can get acc. to standard
energy costs (p.a.)
28,500,- E 24,900,- E E EN 10204
DWRSHUDWLQJÀRZ4100%
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and particularly to EN 13445. As per Pressure Equip- • a Test report 2.2 or
ment Directive 97/23 EG the products are provided DQ,QVSHFWLRQFHUWL¿FDWH
with the CE marking and the Declaration of Confor-
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Equipment Directive 97/23 EG) all dangerous material since 1995 and according to the new DIN EN ISO
classes of category 1 to 4 are covered. 9001:2000 since 2003.
SSV 10-12
Special Compensating Bypass
Check Valve
2
S
S
SSV SSV 2
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The Compensating Bypass Check Valves of the All bypass valve components are easily serviced. SSV
UDQJH 669 FDQ EH XWLOL]HG IRU ǻS XS WR To facilitate serving of the bypass valve, we
10-12
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669 IRU ǻS XS WR EDU ZLWK WHPSHUDWXUH ORQJ WR EH ¿WWHG WR WKH E\SDVV EUDQFK :H DOVR
ranges from –250 °C up to +400 °C. The valves are recommend installing a pressure relieve valve and a
manufactured in the sizes DN 25 to DN 500 and the stop valve. The stop valve must be of a type which
range of nominal pressure is PN 10 up to PN 400 can be locked in the OPEN position.
$16, $16, 7KH E\SDVV ÀRZ FDQ EH ,OOXVWUDWLRQVKRZVDW\SLFDODUUDQJHPHQWDQGÀRZ
XSWRRIWKHPDLQÀRZUHFRPPHQGHGLVXSWR scheme of our Compensating Bypass Check Valve. ORRNDWLQIR
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35%. The hand-operated bypass feature is optional.
The valve operates without additional auxiliary In order to avoid vibrations in the valve and the
energy. pipes we recommend continuing the connecting line
)RUWKHSURWHFWLRQRIÀXLGSXPSVZLWKGHOLYHU\KHDGV at the outlet (DN2) and Bypass branch (DN3) for EDU
of above 2200 m we recommend the range SMA approx. 2-3 m in the chosen nominal size. A pipe
63/64 (see prospect) with „ON-OFF-regulation“ of bend directly at the bypass branch is not admissible. 3131
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the bypass.
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W\SHZLWKLQWHJUDWHGWKURWWOHVLQWKHE\SDVV The non-return cone activates the Rotary Slide Valve
(13) in the bypass by means of a lever (14). If the
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10-12 is a pump protection device. It automatically 7KH YDOYH UDQJH 669 LV XWLOL]HG IRU ÀXLGV ZLWK D ding to the rising of the cone by delivery in main
protects centrifugal pumps – especially those viscosity < 150 cSt without solids, e.g.: direction. The valve just allows such an amount of
handling hot water – from damage which might E\SDVVÀRZDVLWLVQHFHVVDU\IRUVXSSOHPHQWRIWKH
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As soon as the pump capacity drops below a prede- refrigeration SXPS ÀRZ WKH E\SDVV FORVHV 2Q WKH RWKHU KDQG
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valve to the boiler or process is completely shut off. • in steel production ,QVWDOODWLRQ
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stages within the bypass. The utilization in nuclear power plants emphasizes to the pump discharge branch, and must be mounted
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possibilities for horizontal installation exist, but
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250 25 4.5 250 5.57 4.04 3.23 40 400 150 250 150 250 103 8
50 270 107
3131
15 170 19 40 280 75
10-40 2.48 25 220 78 170 78 170 20 2 10-40 11.00 50 380 145 280 145 280 76 3
32 180 22 65 300 79
15 190 30 40 280 96
63 2.48 1.81 25 270 100 190 100 190 31 3 63 11.00 6.85 50 390 145 280 145 280 97 6
32 200 33 65 300 100
15 190 30 40 300 116
40 100 2.48 1.81 1.44 40 25 25 270 100 190 100 190 31 3 100 100 11.00 6.85 5.22 100 50 380 430 155 300 155 300 117 6
32 200 33 65 320 121 XSWR
15 190 30 40 300 116 ǻSEDU
160 2.25 1.71 1.40 25 270 100 190 100 190 31 3.5 160 8.34 6.04 4.83 50 430 155 300 155 300 117 7
32 200 33 65 320 121
15 195 41 40 320 183
250 2.25 1.71 1.40 25 300 115 195 115 195 42 4.5 250 8.34 6.04 4.83 50 500 180 320 180 320 185 9
32 200 44 65 340 190
15 180 27 40 360 192
10-40 3.21 25 250 90 180 90 180 28 2 10-40 17.71 50 440 165 360 165 360 118 4
32 200 30 65 380 123
15 36 40 360 158
200
63 3.21 2.03 25 250 105 105 200 37 3 63 17.71 12.01 50 460 165 360 165 360 160 7
200
32 39 65 380 165
15 43 40 360 192
200
50 100 3.21 2.03 1.55 50 25 25 290 105 105 200 44 3 125 100 17.71 12.01 9.36 125 50 40 500 170 360 170 360 194 9
200
32 46 65 380 200
15 43 40 360 192
200
160 2.93 1.96 1.51 25 290 105 105 200 44 3.5 160 12.68 10.02 8.32 50 500 170 360 170 360 194 10
200
32 46 65 380 200
15 50 40 380 264
205
250 2.93 1.96 1.51 25 330 125 125 205 51 4.5 250 12.68 10.02 8.32 50 570 190 380 190 380 267 12
205
32 51 65 400 274
25 200 41 50 380 179
10-40 4.42 40 280 105 200 105 200 42 2 10-40 22.78 65 500 190 390 190 380 181 7
50 210 44 80 410 186
25 220 54 50 400 229
63 4.42 2.99 40 320 120 225 120 220 55 3 63 22.78 16.12 65 520 190 400 190 400 231 10
50 235 57 80 420 236
25 220 66 50 400 261
65 100 4.42 2.99 2.33 65 40 25 340 125 225 125 220 67 3 150 100 22.78 16.12 12.75 150 65 50 580 190 400 190 400 264 13
50 235 69 80 420 270
25 220 66 50 400 288
160 3.67 2.73 2.21 40 340 125 225 125 220 67 3.5 160 18.73 14.47 11.88 65 580 190 400 190 400 291 15
50 235 69 80 420 297
25 240 81 50 420 378
250 3.67 2.73 2.21 40 370 140 240 140 240 82 4.5 250 18.73 13.49 11.32 65 630 220 420 220 420 381 19
50 250 85 80 440 389
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250 21.47 18.50 16.18 80 830 265 590 265 590 704 27 1500 Ý 40 4.5
100 610 714
3131 $16,
80 520 658 Ý 170 19
10-40 67.44 100 730 265 520 265 520 661 17 150 2.48 Ý 220 78 170 78 170 19 2
125 540 667 Ý 180 20
80 550 696 Ý 170 27
63 67.44 45.06 100 760 265 550 265 550 699 22 300 2.48 1.81 Ý 270 100 170 100 170 27 3
125 570 705 Ý 180 28
80 590 784 Ý 190 28
250 100 67.44 45.06 34.86 250 100 80 840 280 590 280 590 788 23 Ý 600 2.48 1.81 1.44 Ý Ý Ý 270 100 190 100 190 29 3
125 610 796 XSWR Ý 200 31 XSWR
80 590 810 ǻSEDU Ý 200 36 ǻSEDU
160 39.82 33.27 28.47 100 880 280 590 280 590 814 29 900 2.25 1.71 1.40 Ý 320 125 200 125 200 37 3.5
125 610 822 Ý 210 39
80 700 1234 Ý 200 39
250 37.65 31.93 27.62 100 1050 340 700 340 700 1239 59 1500 2.25 1.71 1.40 Ý 320 125 200 125 200 40 4.5
125 720 1249 Ý 210 42
100 580 823 Ý 180 27
10-40 100.27 125 860 320 580 320 580 826 20 150 3.21 Ý 250 90 180 90 180 28 2
150 600 832 Ý 190 29
100 640 881 Ý 180 32
63 100.27 68.81 125 900 320 640 320 640 884 28 300 3.21 2.03 Ý 270 100 180 100 180 33 3
150 660 890 Ý 190 34
100 650 1113 Ý 200 39
300 100 100.27 68.81 53.37 300 125 100 1050 330 650 330 650 1118 29 Ý 600 3.21 2.03 1.55 Ý Ý Ý 290 105 200 105 200 40 3
150 670 1126 Ý 210 42
100 650 1113 Ý 210 52
160 50.79 44.56 39.57 125 1050 330 650 330 650 1118 38 900 2.93 1.96 1.51 Ý 325 125 210 125 210 53 3.5
150 670 1126 Ý 220 55
100 740 2043 Ý 210 61
250 50.79 44.56 39.57 125 1200 380 740 380 740 2051 75 1500 2.93 1.96 1.51 Ý 350 135 210 135 210 62 4.5
150 760 2062 Ý 220 64
Ý 200 43
150 4.42 Ý 280 105 200 105 200 44 2
1) Weight of hand-operating branch Ý 210 45
Ý 200 51
Other pipe sizes, pressure ranges and special designs are deliverable on request. 300 4.42 2.99 Ý 300 115 200 115 200 52 3
With reservation to changes of dimensions and weights. Ý 210 53
Ý 220 62
Ý 600 4.42 2.99 2.33 Ý Ý Ý 340 125 225 125 220 64 3
Ý 235 65
Ý 230 75
900 3.67 2.73 2.21 Ý 370 140 235 140 230 77 3.5
Ý 245 79
Ý 240 91
1500 3.67 2.73 2.21 Ý 390 150 240 150 240 93 4.5
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1500 5.57 4.04 3.23 Ý 430 160 255 160 250 117 8 1500 21.47 18.50 16.18 Ý 880 295 590 295 590 730 27
Ý 275 121 Ý 610 740
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Ý 280 77 Ý 520 646
150 11.00 Ý 380 145 280 145 280 78 3 150 67.44 Ý 730 265 520 265 520 648 17
Ý 300 82 Ý 540 654
Ý 280 102 Ý 530 690
300 11.00 6.85 Ý 390 145 280 145 280 103 6 300 67.44 45.06 Ý 750 270 530 270 530 692 22
Ý 300 107 Ý 550 698
Ý 300 127 Ý 590 795
Ý 600 11.00 6.85 5.22 Ý Ý Ý 430 155 300 155 300 128 6 Ý 600 67.44 45.06 34.86 Ý Ý Ý 840 280 590 280 590 800 23
Ý 320 133 Ý 610 808 XSWR
Ý 300 154 Ý 590 917 ǻSEDU
900 8.34 6.04 4.83 Ý 450 165 300 165 300 155 7 900 39.82 33.27 28.47 Ý 900 290 590 290 590 922 29
Ý 320 160 Ý 610 930
Ý 320 194 Ý 700 1149
1500 8.34 6.04 4.83 Ý 520 190 320 190 320 196 9 1500 37.65 31.93 27.62 Ý 1100 370 700 370 700 1455 59
Ý 340 202 Ý 720 1465
Ý 360 119 Ý 590 816
150 17.71 Ý 450 165 360 165 360 121 4 150 100.27 Ý 860 320 590 320 580 818 20
Ý 380 126 Ý 600 842
Ý 360 158 Ý 600 879
300 17.71 12.01 Ý 460 165 360 165 360 160 7 300 100.27 68.81 Ý 880 320 600 320 600 881 28
Ý 380 165 Ý 620 887
Ý 360 221 Ý 650 1096
Ý 600 17.71 12.01 9.36 Ý Ý Ý 500 170 360 170 360 223 9 Ý 600 100.27 68.81 53.37 Ý Ý Ý 1050 330 650 330 350 1101 29
Ý 380 229 Ý 670 1110
Ý 360 258 Ý 650 1294
900 12.68 10.02 8.32 Ý 530 185 370 185 360 261 10 900 50.79 44.56 39.57 Ý 1050 330 650 330 650 1299 38
Ý 390 268 Ý 670 1308
Ý 390 341 Ý 740 1998
1500 12.68 10.02 8.32 Ý 630 230 390 230 390 344 12 1500 50.79 44.56 39.57 Ý 1250 410 740 410 740 2005 75
Ý 410 351 Ý 760 2016
Ý 380 178
150 22.78 Ý 500 190 380 190 380 179 7
Ý 400 184 1) Weight of hand-operating branch
Ý 400 224
300 22.78 16.12 Ý 520 190 400 190 400 227 10 Other pipe sizes, pressure ranges and special designs are deliverable on request.
Ý 420 333 With reservation to changes of dimensions and weights.
Ý 400
273
Ý 600 22.78 16.12 12.75 Ý Ý Ý 580 190 400 190 400 13
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Ý 420
Ý 410 335
900 18.73 14.47 11.88 Ý 600 200 420 200 410 337 15
Ý 430 344
Ý 420 410
1500 16.73 13.49 11.32 Ý 700 260 420 260 420 413 19
Ý 440 421
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40 65
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50 210 38 80 140 129
25 220 42 50
63 3.67 2.67 40 300 120 225 120 220 44 3 63 18.73 14.24 65
50 235 47 80
25 50
50 100 50 40 25 125 100 125 65 50
50 80 XSWR
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160 40 160 65
50 80
25 50
250 40 250 65
50 80
25 220 47 65 420 183
10-40 5.57 40 290 110 220 110 220 48 2 10-40 48.16 80 520 190 430 190 420 186 7
50 240 51 100 450 193
25 230 60 65
63 5.57 3.96 40 330 125 230 125 230 61 3 63 48.16 42.56 80
50 250 64 100
25 65 460 278
65 100 65 40 25 150 100 48.16 42.56 150 80 65 620 210 460 210 480 281 13
50 100 480 290
25 65 490 320
160 40 160 48.16 42.56 80 620 210 490 210 490 323 15
50 100 510 331
25 65
250 40 250 80
50 100
40 280 50 80 490 366
10-40 8.34 5.92 50 330 130 280 130 280 51 3 10-40 39.82 100 650 240 490 240 490 370 1
65 300 54 125 510 376
40 80 520 409
63 8.34 5.92 50 63 39.82 32.87 100 680 270 520 270 520 411 14
65 125 540 418
40 300 93 80
80 100 8.34 5.92 80 50 40 400 150 300 150 300 94 5 200 100 200 100 80
65 320 98 125
40 300 93 80
160 8.34 5.92 50 400 150 300 150 300 94 6 160 100
65 320 98 125
40 80
250 50 250 100
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1500 Ý 1500 Ý
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Ý 370 125 Ý 580 830
150 18.73 Ý 480 180 370 180 370 127 4 150 172.02 Ý 860 320 580 320 580 832 20
Ý 390 132 Ý 600 842
Ý 390 164 Ý 580 896
300 18.73 14.24 Ý 500 180 390 180 390 166 300 172.02 80.39 Ý 880 320 580 320 580 898
Ý 410 171 Ý 600 908
Ý Ý
Ý 600 Ý Ý Ý Ý 600 Ý Ý Ý
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900 Ý 900 Ý
Ý Ý
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1500 Ý 1500 Ý
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Ý 420 183
150 48.16 Ý 520 190 430 190 420 185 7
Ý 450 191 1) Weight of hand-operating branch
Ý 440 229
300 48.16 42.56 Ý 540 190 440 190 440 232 Other pipe sizes, pressure ranges and special designs are deliverable on request.
Ý 460 238 With reservation to changes of dimensions and weights.
Ý 460 287
Ý 600 48.16 42.56 Ý Ý Ý 620 210 460 210 460 281 13
Ý 480 289
Ý 500 340
900 48.16 42.56 Ý 640 220 500 220 500 343 15
Ý 520 351
Ý
1500 Ý
Ý
Ý 490 368
150 39.82 Ý 650 240 490 240 490 370 1
Ý 510 376
Ý 500 398
300 39.82 32.87 Ý 690 260 500 260 500 400 14
Ý 520 406
Ý
Ý 600 Ý Ý Ý
Ý
Ý
900 Ý
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Ý
1500 Ý
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SSV 18-20
Special Compensating Bypass
Check Valve
3
S
S
SSV SSV 3
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The Compensating Bypass Check Valves of the All bypass valve components are easily serviced. SSV
UDQJH 669 FDQ EH XWLOL]HG IRU ǻS XS WR To facilitate serving of the bypass valve, we
18-20
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ranges from –250°C up to +400°C. The valves are recommend to install a pressure relieve valve and a
manufactured in the sizes DN 25 to DN 500 and the stop valve. The stop valve must be of a type which
range of nominal pressure is PN 10 up to PN 400 can be locked in the OPEN position.
$16,±$16, 7KHE\SDVVÀRZFDQEHXS ,OOXVWUDWLRQVKRZVDW\SLFDODUUDQJHPHQWDQGÀRZ
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to 35%. The hand-operated bypass feature is optional.
The valve operates without additional auxiliary In order to avoid vibrations in the valve and the
energy. pipes we recommend continuing the connecting line
)RUWKHSURWHFWLRQRIÀXLGSXPSVZLWKGHOLYHU\KHDGV at the outlet (DN2) and Bypass branch (DN3) for EDU
of above 2200 m we recommend the range SMA approx. 2-3 m in the chosen nominal size. A pipe
63/64 (see prospect) with „ON-OFF-regulation“ of bend directly at the bypass branch is not admissible. 3131
$16,
the bypass.
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is designed in such a way, that the cone reaches its
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W\SHZLWKLQWHJUDWHGQRQUHWXUQYDOYHLQWKHE\SDVV The non-return cone activates the Rotary Slide Valve
(13) in the bypass by means of a lever (14). If the
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Compared to the series SSV 10-12, the series SSV differential pressure. The choice is done in our Valve is completely open. It closes corresponding to
18-20 uses an integrated non-return valve in the by- works. the rising of the cone by delivery in main direction.
pass. It automatically protects centrifugal pumps – 7KHYDOYHUDQJH669LVXWLOL]HGIRUÀXLGVZLWKDYLV- 7KHYDOYHMXVWDOORZVVXFKDQDPRXQWRIE\SDVVÀRZ
especially those handling hot water – from damage cosity < 150 cSt without solids, e.g.: as it is necessary for supplement of the required
which might occur through partial evaporation of the • in boiler feed water and cooling water plants PLQLPXPÀRZRIWKHSXPS
water content during low load operation. • in Petrochemical and Chemical Industry and $V VRRQ DV WKH PDLQ ÀRZ H[FHHGV WKH PLQLPXP
As soon as the pump capacity drops below a prede- refrigeration SXPS ÀRZ WKH E\SDVV FORVHV 2Q WKH RWKHU KDQG
WHUPLQHG ÀRZ UDWH WKH E\SDVV YDOYH RSHQV VXI¿FL- • in potable water supply and backwater disposal WKH E\SDVV RSHQV DJDLQ ZKHQ WKH PDLQ ÀRZ IDOOV
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valve to the boiler or process is completely shut off. • in steel production ,QVWDOODWLRQ
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50 250 86
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50 250 50
15 190 30 25 245 62
63 2.30 25 270 100 190 100 190 31 3 63 6.45 40 350 130 230 130 230 60 5
50 250 64
15 190 30 25 250 74
32 100 2.30 32 25 25 270 100 190 100 190 31 3 80 100 6.45 80 40 40 370 130 240 130 240 73 5
50 260 78 XSWR
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160 2.12 25 270 100 190 100 190 31 3.5 160 5.14 40 370 130 240 130 240 73 6
50 260 78
15 195 41 25 255 103
250 2.12 25 300 115 195 115 195 41 4.5 250 5.14 40 400 150 250 150 250 103 8
50 270 108
15 180 20 40 280 75
10-40 2.30 25 220 78 170 78 170 20 2 10-40 9.67 50 380 145 280 145 280 76 3
32 180 22 65 300 80
15 190 30 40 280 96
63 2.30 25 270 100 190 100 190 31 3 63 9.67 50 390 145 280 145 280 97 6
32 200 33 65 300 101
15 190 30 40 300 116
40 100 2.30 40 25 25 270 100 190 100 190 31 3 100 100 9.67 100 50 50 430 155 300 155 300 117 6
32 200 33 65 320 122
15 190 30 40 300 116
160 2.12 25 270 100 190 100 190 31 3.5 160 7.72 50 430 155 300 155 300 117 7
32 200 33 65 320 122
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32 205 44 65 340 191
15 190 28 50 360 116
10-40 2.86 25 250 90 180 90 180 28 2 10-40 15.91 65 440 165 360 165 360 118 4
32 190 30 80 380 122
15 200 36 50 360 158
63 2.86 25 280 105 200 105 200 37 3 63 15.91 65 460 165 360 165 360 160 7
32 210 39 80 380 165
15 200 43 50 360 192
50 100 2.86 50 25 25 290 105 200 105 200 44 3 125 100 15.91 125 65 50 500 170 360 170 360 194 9
32 210 46 80 380 200
15 200 43 50 360 195
160 2.65 25 290 105 200 105 200 44 3.5 160 11.96 65 500 170 360 170 360 197 10
32 210 46 80 380 203
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100 440 393
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80 480 364 Ý 170 19
10-40 44.84 100 630 240 480 240 480 366 10 150 2.30 Ý 220 78 170 78 170 19 2
125 500 372
80 485 403 Ý 180 27
63 44.84 100 650 240 485 240 485 405 14 300 2.30 Ý 270 100 170 100 170 27 3
125 505 411
80 510 446 Ý 190 28
200 100 44.84 200 100 80 680 240 520 240 510 451 17 Ý 600 2.30 Ý Ý Ý 270 100 190 100 190 29 3
125 540 459 XSWR XSWR
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160 20.96 100 720 240 535 240 520 464 20 900 2.12 Ý 320 125 200 125 200 37 3.5
125 555 473
80 590 704 Ý 200 39
250 20.96 100 830 265 590 265 590 707 27 1500 2.12 Ý 320 125 200 125 200 40 4.5
125 610 717
100 560 661 Ý 180 19
10-40 55.05 125 730 265 560 265 560 664 17 150 2.30 Ý 220 78 170 78 170 19 2
150 580 672 Ý 180 20
100 550 699 Ý 180 27
63 55.05 125 760 265 550 265 550 702 22 300 2.30 Ý 270 100 170 100 170 27 3
150 570 710 Ý 180 28
100 590 788 Ý 190 28
250 100 55.05 250 125 100 840 280 590 280 590 791 23 Ý 600 2.30 Ý Ý Ý 270 100 190 100 190 29 3
150 610 799 Ý 200 31
100 590 814 Ý 200 36
160 34.97 125 880 280 590 280 590 817 29 900 2.12 Ý 320 125 200 125 200 37 3.5
150 610 826 Ý 210 39
100 700 1239 Ý 200 39
250 34.97 125 1050 340 700 340 700 1243 59 1500 2.12 Ý 320 125 200 125 200 40 4.5
150 720 1253 Ý 210 42
125 640 826 Ý 190 28
10-40 81.85 150 860 320 640 320 640 829 20 150 2.86 Ý 250 90 180 90 180 28 2
200 660 837 Ý 190 29
125 640 884 Ý 190 33
63 81.85 150 900 320 640 320 640 887 28 300 2.86 Ý 270 100 180 100 180 33 3
200 660 895 Ý 190 34
125 680 1118 Ý 200 39
300 100 81.85 300 150 125 1050 330 680 330 680 1123 29 Ý 600 2.86 Ý Ý Ý 290 105 200 105 200 40 3
200 100 1133 Ý 210 42
125 680 1118 Ý 210 52
160 42.29 150 1050 330 680 330 680 1123 38 900 2.65 Ý 325 125 210 125 210 53 3.5
200 700 1133 Ý 220 55
125 740 2051 Ý 210 61
250 42.29 150 1200 380 740 380 740 2056 75 1500 2.65 Ý 350 135 210 135 210 62 4.5
200 760 2066 Ý 220 64
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Ý 250 97 Ý 440 424
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150 6.45 Ý 310 120 230 120 230 46 3 150 44.84 Ý 630 240 480 240 480 364 10
Ý 250 50 Ý 500 370
Ý 245 62 Ý 480 392
300 6.45 Ý 330 125 230 125 230 60 5 300 44.84 Ý 650 240 480 240 480 394 14
Ý 250 64 Ý 500 400
Ý 250 81 Ý 510 445
Ý 600 6.45 Ý Ý Ý 370 130 240 130 240 80 5 Ý 600 44.84 Ý Ý Ý 680 240 520 240 510 450 17
Ý 260 84 Ý 540 458 XSWR
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900 5.14 Ý 390 140 245 140 245 85 6 900 20.96 Ý 750 250 535 250 520 601 20
Ý 265 89 Ý 555 609
Ý 255 117 Ý 590 730
1500 5.14 Ý 430 160 250 160 250 117 8 1500 20.96 Ý 880 295 590 295 590 733 27
Ý 270 121 Ý 610 741
Ý 280 77 Ý 560 648
150 9.67 Ý 380 145 280 145 280 78 3 150 55.05 Ý 730 265 560 265 560 650 17
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Ý 280 102 Ý 560 692
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Ý 320 133 Ý 610 813
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900 7.72 Ý 450 165 310 165 310 155 7 900 34.67 Ý 900 290 590 290 590 927 29
Ý 320 159 Ý 610 935
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Ý 340 202 Ý 720 1471
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150 15.91 Ý 450 165 360 165 360 123 4 150 81.85 Ý 860 320 635 320 635 820 20
Ý 380 128 Ý 655 826
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300 15.91 Ý 480 165 360 165 370 161 7 300 81.85 Ý 880 320 640 320 640 883 28
Ý 380 166 Ý 660 889
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Ý 380 231 Ý 700 1115
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900 11.96 Ý 530 185 375 185 370 264 10 900 42.29 Ý 1050 330 680 330 680 1304 38
Ý 395 271 Ý 700 1313
Ý 390 344 Ý 740 2005
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Ý 410 353 Ý 760 2024
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50 215 38 100 405 128
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63 3.87 40 300 120 225 120 225 45 3 63 23.13 80 490 180 395 180 390 200 8
50 235 48 100 415 207
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50 250 64 125 465 249
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in the sizes DN 50 to DN 600 (resp. NVS 2” to NVS MXVW DOORZV VXFK DQ DPRXQW RI E\SDVV ÀRZ DV LW LV Cone guide Part-No. 4 Dowel pin Part-No. 94.3
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SSV 42 100-150 65-80 ÝÝ ÝÝ 42.00 49.14
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SSV 44 200-400 125-150 ÝÝ ÝÝ 120.00 140.40 Cap nut Part-No. 92
SSV 45 250-400 125-150 ÝÝ ÝÝ 172.00 201.24 Dowel pin Part-No. 94.1
SSV 46 300-500 150-250 ÝÝ ÝÝ 240.00 280.80
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values QBy can be gathered from table 1. is completely open. It closes corresponding to the Cone complete Part-No. 3 Bearing plate Part-No. 38
The SSV 70 to 79 valves normally are manufactured rising of the cone by delivery in main direction. The Cone guide Part-No. 4 Dowel pin Part-No. 94.3
in the sizes DN 50 to DN 600 (resp. NVS 2” to NVS YDOYHMXVWDOORZVVXFKDQDPRXQWRIE\SDVVÀRZDVLV Cone guide Part-No. 5 Throttle Part-No. 16
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design reasons the pressure loss DpBy at the ÀRZRIWKHSXPS$VVRRQDVWKHPDLQÀRZH[FHHGV Adapter Part-No. 31
bypass is limited to approx. 80 bar. Other operating WKHPLQLPXPSXPSÀRZWKHE\SDVVFORVHV2QWKH Lever Part-No. 32 Single Spare Parts
limits and application ranges are equal to the SSV other hand the bypass opens again, when the main Toothed segment Part-No. 33 Coil spring Part-No. 95.1
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SSV 72 100-150 65-80 ÝÝ ÝÝ 32,30 37.67
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SSV 75 250-400 125-150 ÝÝ ÝÝ 129,00 150.93 Dowel pin Part-No. 94.1
SSV 76 300-500 150-250 ÝÝ ÝÝ 180,00 210.60
SSV 77 350-600 200-300 ÝÝ ÝÝ 262,50 307.13
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SSV 78 350-600 250-350 ÝÝ ÝÝ 376,50 440.51 Dowel pin Part-No. 94.3
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impellers cannot build up delivery pressure when the machinery is constantly kept in a cold state and
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Lower body Part-No. 1 Bypass Valve Head, complete, Part-No. 60 consisting of: Lower body Part-No. 1 Bypass Valve Head, complete Part-No. 60 consiting of:
Upper body Part-No. 2 Casing Part-No. 12 Upper body Part-No. 2 Casing Part-No. 12
Cone Part-No. 3 Rotary slide valve Part-No. 13 Cone Part-No. 3 Rotary slide valve Part-No. 13
Cone guide Part-No. 4 Operating lever Part-No. 14 Cone guide Part-No. 4 Operating lever Part-No. 14
Cone guide Part-No. 5 Dowel pin Part-No. 94.1 Cone guide Part-No. 5 Dowel pin Part-No. 94.1
Bypass branch Part-No. 10 Dowel pin Part-No. 94.2 Bypass branch Part-No. 10 Dowel pin Part-No. 94.2
Casing Part-No. 12 Casing Part-No. 12
Rotary slide valve Part-No. 13 Throttle in the Bypass Branch, consisting of: Rotary slide valve Part-No. 13 Non-Return Valve in the Bypass Branch, complete, consisting of:
Operating lever Part-No. 14 Throttle Part-No. 15 Operating lever Part-No. 14 Throttle Part-No. 16
Throttle Part-No. 15 O-Ring Part-No. 78.4 Throttle Part-No. 16 Non-Return Valve Part-No. 17
Degassing branch Part-No. 26 Non-Return Valve Part-No. 17 O-Ring Part-No. 78.2
Degassing valve Part-No. 27 Single Spare Parts Degassing branch Part-No. 26 O-Ring Part-No. 78.4
Bypass Valve Head, complete Part-No. 60 O-Ring Part-No. 78.1 Degassing valve Part-No. 27 Coil spring Part-No. 95.3
O-Ring Part-No. 78.1 O-Ring Part-No. 78.2 Bypass Valve Head, complete Part-No. 60
O-Ring Part-No. 78.2 O-Ring Part-No. 78.3 O-Ring Part-No. 78.1 Single Spare Parts
O-Ring Part-No. 78.3 O-Ring Part-No. 78.4 O-Ring Part-No. 78.2 O-Ring Part-No. 78.1
O-Ring Part-No. 78.4 O-Ring Part-No. 78.5 O-Ring Part-No. 78.3 O-Ring Part-No. 78.2
O-Ring Part-No. 78.5 Coil spring Part-No. 95.1 O-Ring Part-No. 78.4 O-Ring Part-No. 78.3
Socket screw Part-No. 91.1 (95.2) O-Ring Part-No. 78.5 O-Ring Part-No. 78.4
Socket screw Part-No. 91.2 Coil spring Part-No. 95.3 Socket screw Part-No. 91.1 O-Ring Part-No. 78.5
Dowel pin Part-No. 94.1 Coil spring Part-No. 95.4 Socket screw Part-No. 91.2 Coil spring Part-No. 95.1
Dowel pin Part-No. 94.2 Dowel pin Part-No. 94.1 (95.2)
Coil spring Part-No. 95.1 For main dimensions H, S and L see type SSV 18, Dowel pin Part-No. 94.2 Coil spring Part-No. 95.3
Coil spring Part-No. 95.4 H1 and S1 on request. Coil spring Part-No. 95.1 Coil spring Part-No. 95.4
Coil spring Part-No. 95.3
0DWHULDOVDFFRUGLQJWRRSHUDWLQJFRQGLWLRQVDQGYDOLGVWDQGDUGV For main dimensions H, S and L see type SSV 18,
Coil spring Part-No. 95.4
0DWHULDOVDFFRUGLQJWRRSHUDWLQJFRQGLWLRQVDQGYDOLGVWDQGDUGV H1 and S1 on request.
SMA
Automatic Minimum Flow System
7
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SMA SMA 7
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After control valve 2 closes, control valve 1 opens. For 7KHPLQLPXPÀRZ4By is passed off via the Bypass.
the medium the passage to the piston (15) in the A piston (15) takes over the closing and opening of
by-pass becomes free. The piston forces forward the bypass. Double sealing of the piston in the ring EDU
DJDLQVW WKH SDVVLQJ E\SDVV ÀRZ DQG WKH E\SDVV seat (14) achieves extreme durability of the internal
closes. (Position „OFF“). bypass parts. The following pressure reduction of the 3131
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60$IRUQRQVSHHGFRQWUROOHGSXPSV :LWKLQFUHDVLQJPDLQÀRZWKHFRQH PRYHVIXUWKHU in the bypass.
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PDLQÀRZ4100%. The pilot unit utilizes the medium and the pump pres-
$SSOLFDWLRQV Through actuation of the bypass via a valve control sure for actuation of the piston (15). Two control valves
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The Automatic Minimum Flow System SMA 63/64 plunger (15) the bypass can be opened resp. closed :LWK GHFUHDVLQJ PDLQ ÀRZ WKH FRQH PRYHV GRZQ- control the pump pressure in front of resp. behind the EDU
is a protection device for pump protection. It auto- completely. This On-Off-Regulation of the Bypass wards and switches the two control valves, as soon piston and consequently the position of the piston ON
matically protects centrifugal pumps from damages, makes it possible to increase the load limit from DVLWIDOOVEHORZWKHUHTXLUHGSXPSPLQLPXPÀRZ7KH resp. OFF is regulated. The control valves are actuated
which might occur during operation under low load 200 bar to 400 bar. The prefered duty is in the ran- bypass opens (Position „ON“) and the pump minimum GHSHQGLQJRQWKHPDLQÀRZWKURXJKWKHFRQH SRVL-
conditions because of partial evaporation of the ge of nominal pressure 250 to 400 bar resp. ANSI ÀRZLVSDVVHGRIIYLDWKHE\SDVV WLRQYLDWKHOHYHU :LWKWKHLQWHJUDWHG¿QHWKURWWOH
SXPSFRQWHQW$VVRRQDVWKHPDLQÀRZIDOOVVKRUWRI 2500 lbs. (37) a cushioned move of the piston (15) is achieved.
a predetermined value, the valve opens its bypass, 7KH%\SDVVÀRZFDQDPRXQWXSWRRIWKHPDLQ 7KHLQWHJUDWHG¿QHWKURWWOH LQWKHSLORWXQLWUHGXFHV
VR WKDW WKH E\SDVV ÀRZ LV SDVVHG RII HYHQ LI WKH ÀRZ 7KH YDOYH ZRUNV ZLWKRXW DGGLWLRQDO DX[LOLDU\ WKHYHORFLW\RIWKHFRQWUROÀRZLQÄ2))³GLUHFWLRQ7KLV With a pressure indicator on the bypass the function of
GHOLYHU\LQPDLQÀRZGLUHFWLRQHTXDOV]HUR power. prevents a too fast closing of the bypass and con- the Minimum Flow System can be supervised.
sequently a hammering valve piston (15).
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Through the clear positions of the bypass („ON“ resp.
DIN ANSI Ä2))³ FRPELQHGZLWKWKHSLORWXQLWD¿WWLQJIRUSXPS
'1 '1 '1 '1 QDWPV Q%\PD[ protection has been developed, which combines
'1 '1 a very low wear and tear with very high operational
PP PP LQFK LQFK PK OV PK OV security at highest pressure loads.
32 Ý
80 Ý 180 50 45 13
40 Ý
40 Ý
100 Ý 280 78 70 19
50 Ý
50 Ý 70 19
125 Ý 440 122
65 Ý 120 133
65 Ý 120 33
150 Ý 630 175
80 Ý 180 50
80 Ý 180 50
200 Ý 1120 311
100 Ý 280 78
100 Ý 280 78
250 Ý 1750 486
125 Ý 440 122
SMA 7
$XWRPDWLF0LQLPXP)ORZ6\VWHP Notes
As a special design SMA 64 the system can also be design acc. to DIN, ANSI, BS, ISO and related stan- SMA
utilized for speed controlled pumps. dards are possible.
63/64
Special attention has been paid to easy main-
tenance. So it is not necessary to dismantle the ,QVWDOODWLRQ
E\SDVVEUDQFKUHVSWKHZKROH¿WWLQJIRUH[FKDQJH We recommend installation directly on the pump
of the wearing parts like piston and ring seat. GLVFKDUJH EUDQFK 7KH ÀRZ GLUHFWLRQ DW YHUWLFDO
installation is from bottom to top, when installed ver-
The hand-operating branch with multi-port throttle tically.
VHUYHV IRU PDQXDO FRQWURO RI WKH PLQLPXP ÀRZ YLD In order to avoid vibrations in the valve and the pipe ORRNDWLQIR
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a manually actuated valve combination. We recom- lines we recommend to continue the connecting
mend the branch for sparing of the internal bypass line at the outlet (DN2) and the bypass branch
parts at frequent operation in the range of minimum (DN3) for approx. 2-3 m in the chosen nominal bore.
ÀRZ DV ZHOO DV IRU ¿OOLQJ DQG VWDUWXS RI WKH SODQW A pipe bend directly to the bypass branch should be EDU
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SR/SA
High Pressure Control
Valve
8
SR/SA SR/SA 8
+LJK3UHVVXUH&RQWURO9DOYH +LJK3UHVVXUH&RQWURO9DOYH
6FKURHGHU)ORZ&RQWURO9DOYH 7KHYDOYHLVDYDLODEOHZLWKÀDQJHVDFFWR',1DQG Depending on the medium, the valve body is made SR/SA
ASME or welding ends in a standard range of DN of ferritic, austenitic or austenitic-ferritic (duplex)
5DQJHRIDSSOLFDWLRQ 25 - DN 150 / NPS 1“ – NPS 6“. Other nominal sizes steel.
The SR/SA-type is a High-Pressure control valve for are possible on request.
liquids. It is designed for simple on-/off-regulation 'HVLJQ
6$W\SH DV ZHOO DV IRU FKDOOHQJLQJ ÀRZ FRQWURO The following valve characteristics are available: 7KHGHVLJQLVDFFRUGLQJWRVSHFL¿FDWLRQ$'DQG
(SR-type). Mainly it‘s utilised for the following linear, square, equal percentage and on/off. particularly to EN 13445. As per Pressure Equipment
applications: Valves can be equipped with all common types of Directive 97/23 EG the valves are provided with
actuators (electrically, pneumatically, hydraulically the CE marking and the Declaration of Conformity. ORRNDWLQIR
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3RZHUHQJLQHHULQJ actuated). Valves with on-/off-regulation can also be &HUWL¿HG DFFRUGLQJ WR WKH 0RGXOH + 3UHVVXUH
• feed water control delivered self actuated, i.e. without external power Equipment Directive 97/23 EG) all dangerous
• injection systems VXSSO\ DQG FRQWUROOHG E\ VROHQRLG YDOYH ¿JXUH material classes of category 1 to 4 are covered.
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Max. Design: 600 bar/400 °C
Pressure drop: ǻSPD[EDU
In case of pump protection the SR/SA-type is highly DN 25 - DN 150
Nominal sizes:
(> other sizes on request) XSWR
associated with modern process control and monito- ǻS EDU
Connection end: ZHOGLQJHQGVRUÀDQJHV
ULQJV\VWHPVDVWKHPLQLPXPÀRZFDQEHSUHFLVHO\ Characteristics: on/off, linear, square, equal-%
adjusted to customers resp. plant requirements. Actuators:
electric, pneumatic, hydraulic
self operated
With the check back signal of the positioner (or other Body style: Angle- or Z-type
available sensors) the valve can be usefully integrated carbon steel
in every process control/monitoring system. In that DIN EN 10222-2
stainless steel
Body materials:
way the SR/SA-valve enlarges the Schroeder portfolio DIN EN 10222-5
duplex steel
to control valves and allows pump users to lower their DIN EN 10222-5
energy and maintenance costs. Inner Parts: chrome steel
metal to metal ceiling
Gaskets:
725LQJ
'HVLJQGDWDVDQGOLPLWV · Body
PTFE-pressure sleeve
· Inner gaskets
T > 160 ° Graphit
Referring to the increasing pressure/temperature )LJXUH6$W\SHVHOIDFWXDWHGFRQWUROOHGE\VROHQRLGYDOYH
OHYHOHVSHFLDOO\LQWKH¿HOGRIHOHFWULFDOSRZHUHQJL
neering the valves are designed for pressures up
to pA = 600 bar / 8700 psi and temperatures of
TA = 400 °C / 750 °F. With up to 10 controlled throt-
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8700 psi can be handled troublefree.
SSD
Multi-Port Throttle
9
SSD 9
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Back Pressure Device
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E-mail
Tel
Fax
: sales.jhb@valve.co.za
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E-mail : sales@valve.co.za