E X52e

X52E
MODEL
Orifice Plate Assembly
Wafer Design
Fits ANSI 125, 150, 250, 300
Optional Materials Available
Easy to use size Selection Chart
The Cla-Val Model X52E Orifice Plate Assembly is typically used with
Cla-Val flow control valves. The orifice plate is an essential component
used to generate a specific, predictable pressure drop in the system.
The X52E uses a wafer design holder which offers a compact lightweight assembly that is easy to install. The X52E has a Chamfered
"Inlet" side so even after installation, correct orientation can be easily
verified.
The orifice plate portion of the assembly is made of 302 stainless steel
with other materials options also available. The plate is machined to a recommended "square edge". The plate holder portion of the assembly is
Ductile Iron standard. Fusion-bonded epoxy coating is an option. The
holder may be made of other materials.
Selecting an orifice plate bore size is made by using charts provided.
We recommend installation of this assembly with the sensing port to the
side of the pipeline to prevent air pockets and obstructions in the sensing line. Installation adjacent to a butterfly valve is not recommended as
the orifice plate assembly may interfere with the opening of this type of
valve.
1.00
Flow
Dimensions
L.P. Low Pressure

Sensing Port
1/4 - 18 NPT
B.C.D.
150 LB CONFIGURATION
2X Raised
Face Dia.
Bolt Hole
Size and Number of Bolt Holes
Vary with Pipe Size (See Table)
Flow
"A"
4" Size Shown
Section A - A
300 LB CONFIGURATION
112
212
Diameter of Flange
3.63
4.25
5.00
5.75
7.00
9.75
12.00
14.12 16.50
19.00 21.12
Diameter of Raised Face
2.88
3.63
4.13
5.00
6.19
8.50
10.63
12.75 15.00
16.25 18.50
"A" Dim from CL to top of boss
2.31
2.62
3.00
3.38
4.00
5.38
6.50
7.62
8.75
10.00 11.06
Diameter of Bolt Circle (B.C.D.)
3.88
4.75
5.50
6.00
7.50
9.50
11.75
14.25 17.00
18.75 21.25
12
12
12
16
.31
.38
.38
.38
.38
.44
.44
.50
.50
.56
.56
4.50
5.00
5.50
6.63
7.88
10.63
13.00
NOMINAL PIPE SIZE (inches)
150 Lb.
Number of Bolts
Radius of Bolt Holes
300 Lb. Diameter of Bolt Circle

Number of Bolts
12
12
10
12
15.25 17.75
16
16
14
16
20.25 22.50
20
20
Sizing An Orifice Plate Bore

1. In determining a bore size, the nominal flow rate (or range of flow) and the pipe size in which the orifice plate assembly will
be installed must be known.
2. Sizing a bore for:
A constant flow rate:
Select the sizing chart that matches pipe size and locate the flow rate under the nominal column which is closest to
required flow; select the corresponding bore size dimension.
6" Valve/Pipe Size

Example:
A 6" pipe with a desired constant flow of 700 gpm.
Using the 6" chart, the closest flow in the nominal
column is 670 gpm which has a corresponding bore
size of 3.80".
Bore
Size
4.60
4.40
4.20
4.00
3.80
3.60
3.40
3.20
3.00
2.80
2.60
2.40
Min
490
435
380
330
300
265
230
200
175
150
130
110
Flow gpm
Max
1960
1740
1520
1320
1200
1060
920
800
700
600
520
440
Nominal
1100
980
850
750
670
590
520
450
395
340
295
245
A flow range:
Select the sizing chart that matches pipe size and locate required flow range between the minimum and maximum limits of an
orifice bore. Frequently the flow range will fit between more than one bore size. To resolve this, decide the flow rate that
system will be operated at most frequently. Locate the flow which is closest to this under the nominal flow column, and
select the corresponding bore size dimension.
6" Valve/Pipe Size

Example:
A 6" pipe with a flow range of 300-1000 gpm. Using
the 6" chart, more than one bore size can accommodate this range. The most frequent flow rate will
be 500 gpm. Using the nominal flow column, the
closest flow is 670 gpm which has a corresponding
bore size of 3.40"
Bore
Size
4.60
4.40
4.20
4.00
3.80
3.60
3.40
3.20
3.00
2.80
2.60
2.40
Min
490
435
380
330
300
265
230
200
175
150
130
110
Flow gpm
Max
1960
1740
1520
1320
1200
1060
920
800
700
600
520
440
Nominal
1100
980
850
750
670
590
520
450
395
340
295
245
Orifice Plate Bore Chart

212" Valve/Pipe Size
2"* Valve/Pipe Size

Bore
Size
1.55
1.50
1.40
1.20
1.00
.80
Min
55
50
42
29
19
12
Flow gpm
Max
220
200
168
116
76
50
Nominal
125
115
95
65
45
28
*For 1 1/2" bore information please consult the factory
Bore
Size
1.87
1.60
1.40
1.20
1.00
.80
Min
80
55
40
28
19
12
Flow gpm
Max
330
220
160
115
80
50
Nominal
180
120
88
62
43
28
3" Valve/Pipe Size

Bore
4" Valve/Pipe Size

Bore
Flow gpm
Flow gpm
Size
Min
Max
Nominal
Size
Min
Max
Nominal
2.29
2.20
2.00
1.80
1.60
1.40
1.20
1.00
120
105
84
65
50
38
28
19
480
420
336
260
200
152
112
76
270
240
190
145
115
86
62
43
3.00
2.80
2.60
2.40
2.20
2.00
1.80
1.60
1.40
1.20
205
170
140
115
96
78
63
49
38
28
820
680
560
460
384
312
252
196
152
112
450
390
310
260
215
175
140
110
84
62
8" Valve/Pipe Size
6" Valve/Pipe Size

Bore
Bore
Flow gpm
Size
Min
Max
4.60
4.40
4.20
4.00
3.80
3.60
3.40
3.20
3.00
2.80
2.60
2.40
490
435
380
330
300
265
230
200
175
150
130
110
1960
1740
1520
1320
1200
1060
920
800
700
600
520
440
Nominal
Size
Min
Max
1100
980
850
750
670
590
520
450
395
340
295
245
6.00
5.80
5.60
5.40
5.20
5.00
4.80
4.60
4.40
4.20
4.00
830
760
680
620
570
515
470
425
385
345
310
3320
3040
2720
2480
2280
2060
1880
1700
1540
1380
1240
Size
7.50
7.00
6.50
6.00
5.50
5.00
4.50
4.00
3.50
3.00
Flow gpm
Min
Max
1300
1075
880
730
600
490
390
310
235
175
5200
4300
3520
2920
2400
1960
1560
1240
940
700
Nominal
1850
1700
1550
1400
1275
1150
1050
950
860
780
700
12" Valve/Pipe Size
10" Valve/Pipe Size

Bore
Flow gpm
Bore
Flow gpm
Nominal
Size
Min
Max
Nominal
2900
2400
1950
1650
1350
1100
870
690
525
385
9.00
8.50
8.00
7.50
7.00
6.50
6.00
5.50
5.00
4.50
1850
1575
1350
1150
980
840
700
580
480
385
7400
6300
5400
4600
3920
3360
2800
2320
1920
1540
4200
3500
3000
2600
2200
1875
1575
1300
1075
870
16" Valve/Pipe Size
14" Valve/Pipe Size

Bore
Size
10.00
9.50
9.00
8.50
8.00
7.50
7.00
6.50
6.00
5.50
5.00
4.50
Min
2350
2025
1750
1500
1300
1150
960
820
700
585
480
385
Flow gpm
Bore
Max
Nominal
Size
Min
Max
Nominal
5200
4500
3900
3400
2900
2500
2150
1850
1550
1300
1075
860
11.50
11.00
10.50
10.00
9.50
9.00
8.50
8.00
7.50
7.00
6.50
6.00
5.50
3100
2700
2400
2100
1850
1650
1450
1250
1100
950
810
700
575
12400
10800
9600
8400
7400
6600
5800
5000
4400
3800
3240
2800
2300
7000
6100
5400
4700
4200
3650
3250
2850
2450
2150
1800
1550
1300
9400
8100
7000
6000
5200
4600
3840
3280
2800
2340
1920
1540
18" Valve/Pipe Size

Bore
Flow gpm
20" Valve/Pipe Size
Flow gpm
Size
Min
Max
Nominal
13.00
12.00
11.50
11.00
10.50
10.00
9.50
9.00
8.50
8.00
7.50
7.00
5200
4100
3700
3300
2950
2600
2350
2100
1850
1650
1400
1250
15500
12300
11000
9850
8800
7850
6200
6200
5500
4850
4250
3650
9000
7100
6400
5700
5100
4550
3600
3600
3200
2800
2450
2100
Bore
Flow gpm
Size
Min
Max
Nominal
14.00
13.50
13.00
12.50
12.00
11.50
11.00
10.50
10.00
9.50
9.00
8.50
6000
5300
4800
4300
3900
3400
3200
2900
2600
2300
2000
1800
18000
16000
14500
12900
11700
10500
9500
8600
7700
6100
6100
5400
10500
9500
8500
7500
6700
6100
5500
5000
4500
3600
3600
3200
24" Valve/Pipe Size

Bore
36" Valve/Pipe Size
Flow gpm
Size
Min
Max
17.00
16.00
15.00
14.50
14.00
13.50
13.00
12.50
12.00
11.50
11.00
10.50
10.00
8500
7500
6100
5700
5200
4800
4400
4000
3700
3400
3100
2800
2500
25500
21500
18400
17000
15600
14400
13200
12100
11100
10100
9200
8300
7500
Nominal
Bore
15000
12500
10500
9800
9000
8300
7600
7000
6400
5800
5300
4800
4400
Size
Min
Max
Nominal
26.00
24.00
22.00
21.00
20.00
19.00
18.00
17.00
16.00
15.00
14.00
13.00
20000
16000
13000
12000
10500
9500
8500
7500
6500
5600
4900
4200
60000
48500
39000
35000
31000
28000
24500
22000
19300
16900
14600
12600
35000
28000
22500
20500
18000
16000
14500
12500
11000
9800
8500
7300
CLA-VAL
Distributed By:
PO Box 1325 Newport Beach CA 92659-0325
M&M
Control
Service,Fax:
INC.
Phone:
949-722-4800
949-548-5441
CLA-VAL 800-876-0036
CANADA
CLA-VAL EUROPE
Phone:
Chemin ds Mesanges 1
4687 Christie Drive
Fax:
847-356-0747
CH-1032 Romanel/
Beamsville,
Ontario
Lausanne, Switzerland
Canada LOR 1B4
Email:
Phone: 41-21-643-15-55
Phone: Sales@mmcontrol.com
905-563-4963
Fax:
E-X52E (R-9/05)
COPYRIGHT
905-563-4040
CLA-VAL 2005 Printed in USA

Specifications subject to change without notice.
Fax:
41-21-643-15-50
www.cla-val.com
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X52E

Orifice Plate Assembly

L.P. Low Pressure

4" Size Shown

Diameter of Raised Face

"A" Dim from CL to top of boss

Diameter of Bolt Circle (B.C.D.)

NOMINAL PIPE SIZE (inches)

300 Lb. Diameter of Bolt Circle

Sizing An Orifice Plate Bore

6" Valve/Pipe Size

6" Valve/Pipe Size

Orifice Plate Bore Chart

2"* Valve/Pipe Size

*For 1 1/2" bore information please consult the factory

3" Valve/Pipe Size

4" Valve/Pipe Size

8" Valve/Pipe Size

6" Valve/Pipe Size

12" Valve/Pipe Size

10" Valve/Pipe Size

16" Valve/Pipe Size

14" Valve/Pipe Size

18" Valve/Pipe Size

20" Valve/Pipe Size

24" Valve/Pipe Size

36" Valve/Pipe Size

CLA-VAL 2005 Printed in USA

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