TSCS

TSCS
1

T TSERIES
SERIES FLEXIBLE
FLEXIBLE DISC COUPLING
DISC COUPLING FOR API APPLICATIONS
FOR API APPLICATIONS
Installation,Installation,
Operation & Maintenance
Operation Instructions
& Maintenance Instructions
FIGURE1 1
FIGURE 1

2B 2 5 7 6 4 2A

11 – –Transmission
Transmissionunitunit 4 – 4 Guard ring ring
– Guard
22 – –Standard
Standardhubhub- external location
- external (sizes
location 0014-1400)
(sizes 0014-1400) 5 – 5 Spacer
– Spacer
2A2A
– –Disc hub (large bore) (option on sizes 0014-0360)
Disc hub (large bore) (option on sizes 0014-0360) 6 – 6 Disc– Disc
pack pack
2B2B
– –Long
Longhub
hub(option
(optiononon
sizes 0120-1400)
sizes 0120-1400) 7 – 7 Drive
– Dbolt
rive assembly (drive (drive
bolt assembly bolt, locknut,
bolt, locknut,
3 – Hub bolt sleeve [washer] and overload collar)
3 – Hub bolt sleeve [washer] and overload collar)

Foreword Any warranty may be affected by improper handling, installation or use of

Foreword Any warranty
this coupling. mayJohn
Contact be affected
Crane forbyinformation
improper handling, installation
as to exclusive productor use of
These instructions are provided to familiarize the user with John Crane's this coupling. Contact John Crane for information as to exclusive product
These instructions
Metastream are provided
TSCS coupling and its to familiarize
designated theThese
use. with John Crane's warranty and limitations of liability.
user instructions
warranty and limitations of liability.
Metastream
must TSCS
be followed couplingwork
whenever andisitscarried
designated
out on use. These instructions
the coupling and should If questions or problems arise, contact your local John Crane sales/
must be followed whenever work is carried out on the coupling If questions
and shouldservice engineer ororthe
problems
originalarise, contact
equipment your local John
manufacturer Crane sales/
as appropriate.
be kept available for future reference.
be kept available for future reference. service engineer or the original equipment manufacturer as appropriate.
ATTENTION These instructions are for the fitting, operation ATTENTION John Crane couplings are precision products and must
ATTENTION andThese instructions are for the fitting,
maintenance of the coupling as used in operation ATTENTION be John
handled Crane couplings
appropriately. are
Take precision
particular products
care to and must
avoid
and maintenance of the coupling
rotating equipment and will help to avoid dangeras used in damagebe handled
to spigots,appropriately.
mating faces, Take
hub particular
bores, care
keyways to avoid
and
rotating equipment and will help to
and increase reliability. The information required avoid danger damage
membranes. Do to spigots,
not mating
excessively faces,
compress hub
the bores,
couplingkeyways and
and increase reliability. The information
may change with other types of equipment or required membranes.
membranes during Do not
assembly.excessively
Refer to compress
Table 2 for the coupling
may change
installation with other types
arrangements. Theseofinstructions
equipment or membranes
compression limitsduring assembly.
(min gap ‘X’). Refer to Table 2 for
installation
must be read inarrangements.
conjunction with These
the instructions
instruction compression limits (min gap ‘X’).
must beforread
manuals bothinthe
conjunction
driver and with
driventhemachinery.
instruction These instructions are written for standard catalog products, generally
manuals for both the driver and driven machinery. Thesein instructions
designed are written
accordance with for standard
the drawing shown. catalog products, generally
If the coupling is to be used for an application other than that originally designed in accordance with the drawing shown.
If the coupling
intended is to
or outside theberecommended
used for an application
performanceother than
limits, that
John originally
Crane
intended
must or outside
be contacted the recommended
before its installation andperformance
use. limits, John Crane
must be contacted before its installation and use.
 TSCS
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T SERIES FLEXIBLE DISC COUPLING FOR API APPLICATIONS

Installation, Operation & Maintenance Instructions

Safety Instructions
The following designations are used in the installation instructions to highlight instructions of particular importance.
IMPORTANT is used for items of particular concern when using the coupling.

ATTENTION where there is an obligation or prohibition concerning the avoidance of risk.

where there is an obligation or prohibition concerning harm to people or damage to the equipment.
The usual extent of supply comprises:
• A factory-assembled transmission unit (1) comprising:
– 2-off guard rings (4)
– 1-off spacer (5)
– 2-off disc packs (6)
– 12-off drive bolt assemblies (7) *consisting of drive bolt and nut, overload collar and washer*
• Driver hub (2, 2a, 2b)
• Driven hub (2, 2a, 2b)
• 2 sets of hub bolts (3) to secure the transmission unit between the two hub flanges
• A set of compression bolts to compress the transmission unit for assembly between the hubs
NOTE: Only supplied with 0360 size, or for all sizes when both sides have a disc hubs
– For TDCS-0014 and TSCS-0025 to 0215, with at least one standard hub, compress using standard hub bolts (half on each side).
– For TSCS-0350 to 1400 sizes, compress using compression slots in the hub. If the length of the spacer allows it, it may be possible to use the
standard hub bolts to compress
IMPORTANT If a general arrangement drawing is supplied with the coupling, then all data indicated on that drawing takes precedence over
information included in these instructions.

Storage Spares
If the coupling is not to be used immediately, it should be stored indoors When requesting spares, always quote the full designation of the
or in a waterproof container away from direct heat in its original packing. coupling (e.g., TSCS-0120-0177-1500).
All documentation supplied with the coupling should be retained for The following spares can be purchased from John Crane:
future reference. • Set of hub bolts (3) *please specify standard,
long and/or disc hubs*
• Hubs, bored to your requirement or unbored (2, 2a, 2b)
Extended Hub
• Complete transmission unit, balanced or unbalanced (1)
If the coupling has an extended hub which is designated by • ‘A-kit’ disc fixings including:
**** - **** - **E* - **** on a transmission unit – Drive bolt assembly (7)

**** - **** - **C* - **** or • ‘B-kit’ disc pack:

– disc pack (6)
**** - **** - **D* - **** on a complete coupling
• ‘C-Kit’ disc pack and fixings:
please refer to IOM supplement IOM 021 for additional spares and
– Disc pack (6)
installation information.
– Drive bolt assembly (7)
• ‘O-Kit’ Guard ring assembly:
– Disc pack (6)
– Drive bolt assembly (7)
– Guard ring (4)
 TSCS
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T SERIES FLEXIBLE DISC COUPLING FOR API APPLICATIONS

Installation, Operation & Maintenance Instructions

Installation Parallel bore with keyed drive

1. Ensure the hub bore and mating shaft are clean.
Remove the coupling from the packaging and carefully inspect for
signs of damage. Pay particular attention to the hub bores and the 2. The hub is usually installed with the hub face and shaft end flush.
spigot/recess location features, which should be free from burrs 3. Measure the shaft diameter and hub bore to confirm the correct fit.
and other damage.
4. For clearance fits, install the key(s) into the shaft keyway and, with
Installation of hubs a little lubrication on the shaft, slide the hub onto the shaft. The key
Prior to installing the coupling, ensure that the should be a tight sliding fit in the keyway with a small clearance at
machinery is made safe. Hubs must be adequately the top of the key. Secure the hub to the shaft in the correct axial
supported during installation to avoid accidental position with one or more grub screws.
damage should they slip. 5. John Crane recommends a light interference fit for most applications
and it may be necessary to apply heat to assist fitting of such hubs.
Installation gaps A warm oil bath will usually be adequate. DO NOT spot heat or
There is a “minimum” and “preferred” installation gap that is required exceed 175°C (347°F) as this may cause distortion. A thermal heat
behind the disc hub (see Table 1). stick can be used to estimate the temperature before quickly sliding
• The “minimum” installation gap (see Figure 2) is mandatory and
the hub onto the shaft. A suitable stop will ensure the correct axial
position is located.
is required to allow the transmission unit to be fitted and removed
without moving driving or driven machinery. However, the small gap FIGURE 2
provides limitations and, in order to fit the coupling, the instructions
below must be followed.
– When fitting the coupling, insert the hub bolts into the hub prior to
fixing the hub axial position.
– When removing hub bolts, remove the transmission unit then
slide the hub toward the end of the shaft to create a gap for
bolt removal.
• The ‘preferred’ installation gap (see Figure 3) is not mandatory, but
allows the hub bolts to be replaced without disturbing the hub.

TABLE 1
Installation Gap (inches) MINIMUM
Coupling Size INSTALLATION GAP
Minimum Preferred
0014 0.71 2.36
0025 0.71 2.36 FIGURE 3
0055 0.83 2.68
0120 0.91 3.15
0215 1.22 3.74
0360 1.26 4.09

MINIMUM
INSTALLATION GAP
 TSCS
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T SERIES FLEXIBLE DISC COUPLING FOR API APPLICATIONS

Installation, Operation & Maintenance Instructions

Taper bore with keyed drive (see Figure 4) Fit and secure the axial ram or hydraulic nut BEFORE
1. Thoroughly clean all contact surfaces and smear the tapered injecting oil between the components.
surfaces with oil. 7. Inject oil between the components until the required mounting pressure
2. Fit the hub onto the shaft without the key(s). Lightly hammer is reached, or it leaks out at the ends of the mating surfaces.
the hub with a soft-faced mallet to ensure metal-to-metal 8. By means of the mounting tools, draw the hub up the shaft to the
contact takes place. correct axial position, injecting oil during this operation.
3. Measure the distance from the end of the shaft to the face of NOTE: The correct pull-up distance should be shown on the
the hub using a depth micrometer (record this measurement). hub drawing.
4. Securely mount a dial gauge onto the inboard hub flange and 9. Release the oil pressure and leave equipment fitted for one hour to
set to zero. allow for oil to drain from mating surfaces.
5. Remove the hub and fit the key(s), which should be a tight sliding 10. Remove the mounting tool and oil injection equipment.
fit in the keyway with a small clearance at the top of the key.
11. Remeasure the distance from the end of the shaft to the face of the
6. Refit the hub and draw up the shaft to the correct axial position hub to confirm the correct pull-up.
indicated by the dial gauge. If an interference fit is required the hub
may have to be heated (this is rare, however). 12. Fit the locking washer and shaft-end retaining nut if applicable.
7. When the hub has cooled, remeasure the distance from the end of WAIT for 3-4 hours before applying torque.
the shaft to the face of the hub to confirm the correct axial position.
8. Fit the shaft-end retaining nut, if applicable, to ensure the hub is Unbored hubs
locked in position axially. John Crane recommends a light interference fit for keyed hubs and
NOTE: The hub face may not be flush with the shaft end when shafts (e.g. a P7/h6 fit). The finished bore size can be calculated from the
taper bores are used. measured shaft diameter.
When setting up the hub to machine the bore, use the hub location
FIGURE 4 recess and face as datum surfaces, as shown in Figure 5.
The hub face should be set such that the maximum runout does not
exceed 0.025 mm (0.001”) TIR. The hub location recess should be set so
the maximum runout does not exceed 0.03 mm (0.001”) TIR. Please note
that for API 671 applications, the required tolerances will be tighter.

FIGURE 5

Taper hubs mounted by oil injection (see Figure 4)

1. Ensure that fillets and corner radii of mating surfaces, oil distribution
and drainage grooves are well rounded and free from burrs. Adapters
2. Thoroughly clean all contact surfaces and smear the tapered For machines having an integral flanged shaft, the flange may be
surfaces with oil. machined to suit the bolting configuration of the coupling transmission
unit. Alternatively, the coupling may be supplied with a customized
3. Fit the hub onto the shaft. Lightly hammer the hub with a soft-faced
flange adapter. Refer to the specific general arrangement drawing for
mallet to ensure metal-to-metal contact takes place.
location and mounting details.
4. Measure the distance from the end of the shaft to the face of the
Shaft alignment
hub using a depth micrometer (record this measurement).
Align the center lines of the driving and driven machine shafts as follows:
5. Securely mount a dial gauge onto the inboard hub flange and
set to zero. 1. Move the equipment into position.
6. Fit the oil injection equipment, axial stop and mounting tools. 2. Check for any soft foot and correct before commencing alignment.
Consult the arrangement drawing and the oil injection system 3. With one machine firmly bolted down, set the distance between shaft
suppliers' instructions. ends (DBSE) according to the drawing or catalog dimension.
 TSCS
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T SERIES FLEXIBLE DISC COUPLING FOR API APPLICATIONS

TSCS
5
Installation, Operation & Maintenance Instructions

IMPORTANT DBSE should be measured between the inner face of Installation of the Transmission Unit
T SERIES
the hubs and should FLEXIBLE
not be taken DISC
as the length of theCOUPLING FOR API APPLICATIONS
transmission unit at its outer periphery. DBSE may not 1. Check spigot and recess locations Installation,
on the hubs and &transmission
Operation unit
Maintenance Instructions
be equal to the precise distance between shaft ends. for damage.
IMPORTANT DBSE should be measured between the inner face of Installation of the Transmission Unit
Inthe
particular, the faces of taper bored hubs may not be
hubs and should not be taken as the length of the
flush with the shaft end (refer to Figure 6). The transmission unit must be adequately supported
transmission unit at its outer periphery. DBSE may not 1. Check spigotduring
and recess locations ontothe
installation hubsaccidental
avoid and transmission unit
damage
be equal to the precise distance between shaft ends. for damage.
FIGURE 6 should it slip.
In particular, the faces of taper bored hubs may not be
flush with the shaft end (refer to Figure 6). The transmission unit must be adequately supported
2. Compress duringthe transmission
installation unit accidental
to avoid while sliding it between the hubs.
damage
0014 - 1400
FIGURE 6 – should it slip.
For the TDCS-0014 and TSCS-0025 to 0215, compress using hub bolts (3).
– For the TSCS-0360 (standard and disc hub) or for all sizes if disc
2. Compress the transmission unit while sliding it between the hubs.
0014 - 1400 hubs are present on both sides, separate compression bolts will
– For the TDCS-0014 and TSCS-0025 to 0215, compress using hub bolts (3).
always be supplied.
– For the TSCS-0360 (standard and disc hub) or for all sizes if disc
hubsFor areTSCS-0350 to 1400,
sides,compress
separate using compressionbolts willslots in the hub
–
4. Align the shaft center lines both horizontally and vertically, ideally present on both compression
flanges.
always be supplied. If the length of the spacer allows it, it may be possible to
using the shafts. However, if access prohibits this, then align using the use the hub bolts to assist with compression.
– For TSCS-0350 to 1400, compress using compression slots in the hub
hub bosses
4. Align or flanges.
the shaft center John Cranehorizontally
lines both recommends the reverse
and vertically, periphery
ideally
method Toflanges.
allow Ifforthecompression
length of theusing spacerhub boltsit,(3),
allows thebespacer
it may possibleflanges
to (5) are
using for
theaccurate alignment.
shafts. However, This prohibits
if access can be done this, using dial using
then align gaugestheor drilled
use the to allow
hub bolts the
to bolts
assist to be
with threaded
compression. into the guard ring (4) as shown
withhuba laser
bossesshaft alignment
or flanges. Johnkit. Further
Crane details the
recommends on recommended
reverse peripherylaser
alignment
method for vendors
accurate arealignment.
available fromThis canJohnbe Crane on request.
done using dial gauges or To allow for compression using hub bolts (3), the spacer flanges (5) are flanges
in Figure 7. For DBFF’s less than the preferred minimum, spacer
with a laser shaft after
alignment kit. Further are toslotted.
drilled allow the Tightening
bolts to beevenly,
threaded compressing
into the guard theringtransmission
(4) as shownunit until
5. Recheck the DBSE the shafts havedetails on recommended laser
been aligned. in clearance
Figure 7. For between
DBFF’s the
less hub
than spigots
the and
preferred transmission
minimum, spacerunitflanges
length is
alignment vendors are available from John Crane on request.
6. Axial shims (together with a shim carrier in some cases) may be are slotted.
achieved, Tightening
allowing evenly, compressing
installation. Do not the transmission
over compress unit
the until
transmission
5. Recheck the DBSE after the shafts have been aligned. clearance
unit as between
this can the hub
damage spigots
the and
metal transmission
disc elements.unit length
The is
minimum gap
supplied on applications where it is difficult to accurately set a
6. Axial shims (together with a shim carrier in some cases) may be achieved,
‘X’ (see allowing
Figure installation.
7) should Do be
not notless
over than
compress
the the transmission
values shown in Table 2,
predetermined shaft end separation (DBSE). This is often the case unitunless
as this indicated
can damage the metalondisc elements. The minimum gap
supplied on applications where it is difficult to
where one or both of the hubs are taper bored. Where this feature is accurately set a otherwise the general arrangement drawing.
predetermined shaft end separation (DBSE). This is often the case ‘X’ (see Figure 7) should not be less than the values shown in Table 2,
supplied, the thickness of shims (plus carrier if applicable) are added unless indicated otherwise on the general arrangement drawing.
where one or both of the hubs are taper bored. Where this feature is
to the free length of the transmission IMPORTANT Always remove the compression bolts as soon as the
supplied, the thickness of shims (plusunit so ifthat
carrier the combined
applicable) length
are added transmission unit is in position.
is equal
to the tofreethelength
measured
of the distance
transmission between
unit sothethathubtheflange
combinedfaces,
length IMPORTANT Always remove the compression bolts as soon as the
making anytoallowance
is equal the measured for known
distanceshaft movements.
between the hub flange faces, transmission unit is in position.
3. Align the hub/transmission unit flanges if they have been match marked.
NOTE:making It isanybest
allowance for known
to measure shaft movements.
the transmission unit when it is in a 3. Align the hub/transmission unit flanges if theyTighten
have beenthese matchevenly
marked.
4. Initially fit hub bolts loosely by hand. to locate
gagged
NOTE:condition.
It is best to measure the transmission unit when it is in a the transmission
4. Initially fit hub bolts loosely unit, ensuring the spigots
by hand. Tighten theseenter
evenlytheir recesses
to locate
gagged condition. the squarely.
transmission Usingunit,a ensuring the spigots
torque wrench, enterintheir
tighten recesses
a "diametrically opposite"
IMPORTANT The misalignment tolerances quoted in literature and on squarely. Using a torque wrench, tighten in a "diametrically opposite"
IMPORTANT drawings The misalignment
allow for tolerances quoted in literature
dynamic conditions and on
and variations. sequence to the torque values shown in Table 2 (tightening torque
sequence
relatestotothelubricated
torque values shown in Table 2 (tightening torque
bolts).
Fordrawings
the bestallow for dynamic
service from theconditions
coupling,and variations.
John Crane relates to lubricated bolts).
For the best service
recommends from themisalignment
that installed coupling, JohnisCraneno more 5. Measure dimension 'A' (see Figure 1) on the transmission unit. Check
recommends that installed misalignment is no more 5. Measure dimension 'A' (see Figure 1) on the transmission unit. Check
than 10% of the maximum allowable misalignment, with against the nominal value given in Table 2 with a tolerance of
against the nominal value given in Table 2 with a tolerance of
than 10% of the maximum allowable misalignment, with
allowance being made for any anticipated
allowance being made for any anticipated movements movements +/-0.006
+/-0.006 inch.inch. If outside
If outside these these
limits, limits,
redo theredo axialthe axial alignment.
alignment.
that will occur during operation (e.g., thermal 6. Rotate the machinery
that will occur during operation (e.g., thermal
movements 6. Rotate the machinery two ortwo
threeortimes
threeslowly
timestoslowly
ensuretoitensure
moves itfreely.
moves freely.
movementsononhot hot pumps).
pumps).

FIGURE
FIGURE 7 7
4

3
 TSCS
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T SERIES FLEXIBLE DISC COUPLING FOR API APPLICATIONS

Installation, Operation & Maintenance Instructions

TABLE 2
Hub Bolts Coupling
Min Gap Dim’n
Coupling Tightening Torque Max Axial
Hub Bolt Size 'X' ‘A’ (Nominal)
Size (for lubricated bolts) Deflection
(in) (in)
Lbs.ft (+/- in)
0014 0.2500-20 UNC 7 0.176 0.059 0.220
0025 0.2500-20 UNC 7 0.283 0.039 0.315
0055 0.3125-18 UNC 15 0.291 0.049 0.331
0120 0.3125-18 UNC 15 0.303 0.079 0.362
0215 0.3750-16 UNC 44 0.319 0.098 0.394
0360 0.5000-13 UNC 100 0.335 0.108 0.417
0350 0.3750-16 UNC 35 0.457 0.108 0.539
0500 0.5000-13 UNC 75 0.465 0.128 0.571
0740 0.5000-13 UNC 75 0.484 0.148 0.598
0930 0.6250-11 UNC 150 0.492 0.167 0.630
1400 0.6250-11 UNC 150 0.528 0.197 0.689

Operation, Inspection and Maintenance Transmission Unit Refurbishment

Before starting the machinery, ensure that all It is possible to repair the coupling by fitting replacement membrane
necessary safety procedures are being observed unit assemblies or replacing the entire transmission unit.
and coupling guards are fitted. To replace the transmission unit, remove the hub bolts and then withdraw
the transmission unit using the compression bolts feature in the spacer,
Routine examination should include a periodic check on the tightness as appropriate.
of fasteners and visual inspection of transmission unit components for
signs of fatigue or wear. The transmission unit must be adequately
If the coupled machinery is disturbed at any time, shaft alignment should supported during removal to avoid accidental
be rechecked. Alignment checking is recommended if a deterioration of damage should it slip.
installation alignment during service is suspected.
ATTENTION When repairing John Crane Metastream™ flexible
Maintenance work must only be carried out by suitably membrane couplings, only John Crane-approved parts
qualified personnel when the equipment is stationary should be used.
and has been made safe.
NOTE: For balanced TSC spacer couplings, the transmission unit is usually
John Crane Metastream flexible power transmission couplings are supplied as a factory-assembled unit which should not be dismantled.
designed and selected to give an unlimited service if used within the However, when used at low or medium speeds, the transmission unit can
parameters for which they are specified. Failures are rare and can be reconditioned, but will require rebalancing.
generally be attributed to excessive misalignment, severe overload or a Guard ring assembly units (O-kits), as well as B and C-kits, should be
combination of both. In all cases of coupling failure, it is advisable that replaced in pairs; failure of one will usually result in damage to the other.
the cause of failure is first identified and corrected.
Failure of the coupling will generally be failure of a membrane assembly.
 TSCS
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T SERIES FLEXIBLE DISC COUPLING FOR API APPLICATIONS

Installation, Operation & Maintenance Instructions

Guard Ring Assembly Unit (O-kit) Replacement

1. Remove the drive bolts (8B) and nuts (8N), and remove the guard ring FIGURE 8
assembly from the spacer piece. Do not attempt to dismantle the guard
ring assembly any further.
2. Identify the fasteners on the new guard ring assembly which attach to
the spacer flanges and remove the loosely assembled nuts (8N).
3. With the bolts (8B) in position, carefully press on the bolt heads to
push them into the spacer evenly.
NOTE: Light hammering with a soft mallet may be required, but ensure
assembly is even so as not to over-strain the flexible membranes.
4. Place a small amount of thread-locking compound (e.g., Loctite 242 or
equivalent) on the protruding bolt threads and then assemble the nuts
(8N). Holding the bolts firmly, turn the spacer nuts evenly to the correct
tightening torque value given in Table 3.
5. Complete the refurbishment of the transmission unit by replacing the
second guard ring assembly unit.

TABLE 3. Standard Tightening Torques

TSCS Tightening Torque Nuts (8N)
Coupling Size
Nm Lbs.ft
TDCS - 0014 11 8
0011, 0013, 0025 11 8
0027, 0033, 0055 23 17
0060, 0075, 0120 47 35
0110, 0135, 0215 75 55
0180, 0230, 0360 130 95
0260, 0350 150 110
0400, 0500 205 150
0560, 0740 285 210
0750, 0930 380 280
1120, 1400 490 360

A, B and C-kit Replacement

1. Remove the guard ring assembly unit (O-kit) as per instruction 1 above.
2. Remove the remaining drive nuts (8N) in order to remove the guard ring
from the disc pack assembly.
3. Assemble the relevant spares kit into the configuration as shown
in Figure 8 so that the membranes and fixings are connected to the
guard ring and the washers are in the correct orientation. Apply thread-
locking compound (e.g., Loctite 242 or equivalent) on bolt threads when
assembling the nuts (8N) and torque to the values shown in Table 3.
4. Follow instructions 3 to 5 from Guard Ring Assembly Unit (O-kit)
replacement above to complete the replacement.
 TSCS
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T SERIES FLEXIBLE DISC COUPLING FOR API APPLICATIONS

Installation, Operation & Maintenance Instructions

This section refers to couplings that bear the CE and ATEX required markings:

CE / ATEX Marking
All couplings that comply with CE and ATEX legislation will be marked as shown. This will be etched on the spacer element of the transmission unit if
enough room is available.
A) Ambient temperature is standard (40ºC max)

Where John Crane's Metastream metal membrane couplings are required for use in higher ambient temperatures, John Crane UK Ltd certifies that the
equipment complies with the temperature classification range listed below in Table 1, and in all other respects complies with the type certificates.
TABLE 1
Ambient Range Marking Group II, Category 2 GD
Group I, Category 2 M2 Marking Option
Min. Max. **
Unknown T3 (T200°C) Not Applicable B
-55°C < Ta < 150°C T3 (T200°C) Not Applicable B
-55°C < Ta < 90°C T4 (T135°C) 150°C C
-55°C < Ta < 55°C T5 (T100°C) 150°C C
-55°C < Ta < 40°C T6 (T85°C) 150°C A

B) Ambient temperature is (-55°C < Ta < 150ºC) OR ambient temperature is unspecified, the equipment is not suitable
for mining applications, Group I, Category 2.

C) Ambient temperature is (-55°C < Ta < 90ºC)

When the ambient temp. is specified, ‘T3’ is replaced by the following ‘T’ mark (**) according to Table 1.

NOTE:
‘XX’ is the year of manufacture and will change. For example, for year 2016; XX = 16.
CE and EX marks must meet requirements of Annex II in Reg. (EC) No. 765/2008 and Annex II in Dir. 84/47/EEC respectively.
Operation in aggressive atmospheres
The following components contain non-metallic materials. Confirm compatibility or provide suitable protection if the coupling is to operate in an
aggressive atmosphere.
• The hub electrical insulation (if supplied option) – reinforced thermosetting plastic
• Limited end float bearings (if supplied option) – PTFE based plastic

Temperature classification of John Crane's Metastream couplings

John Crane's Metastream metal membrane couplings, supplied in conformance with Directive 2014/34/EU, have to meet the classifications specified in
Table 1 when used in accordance with instructions and information supplied.
T, L and H series couplings, using the disk type flexible elements, are covered by type examination certificate Sira 02ATEX9403.
M series couplings, using the diaphragm type flexible elements, are covered by type examination certificate S ira 02ATEX9404.
 TSCS
9
®
Metastream ATEX I-ATEX EN (rev3)
EEC Directives
Metastream ® –
ATEX Page EN3 (rev3)
I-ATEX of 4
T SERIES
2014/34/EU (ATEX)FLEXIBLE
& 2006/42/EC DISC COUPLING
(Machinery
EEC Directives – Directive) FOR API APPLICATIONS
Page 4 of 4
2014/34/EU (ATEX) & 2006/42/EC (Machinery Directive) Installation, Operation & Maintenance Instructions

JohnCrane
John CraneUK
UKLtd
Ltd
361-366Buckingham
361-366 BuckinghamAvenue
Avenue
Slough
Slough
SL14LU
SL1 4LU
United
UnitedKingdom
Kingdom
T:
T:+44
+44(0)
(0)1753
1753224
224000
000
F:
F:+44
+44(0)
(0)1753
1753224
224224
224
www.johncrane.com
www.johncrane.com

Declaration
DeclarationofofIncorporation
Conformity

E.C. Machinery Directive (2006/42/EC)

EEC Directive 2014/34/EU of 26.02.2014
and resultant legislation and standards
We, the manufacturers – John Crane UK Ltd, – confirm that the explosion prevention requirements
have been
Section 1.0 - implemented
Machineryfor
Description:
Flexible Power Transmission Ring and Diaphragm Form Membrane Couplings
Types: Metastream metal-membrane couplings
®

Equipment complies
‘H’, ‘T’, with the Series
‘L’ & ‘M’ requirements of directive 2014/34/EU. It is in accordance with
article 1 3. (a) of the directive and the fundamental Health and Safety requirements of Annex II, are
fulfilled.2.0 - Applicable Harmonised Standards
Section
ISO13709 (API 610) for centrifugal pumps
ISO14691 couplings for - General-purpose applications
The current Type Examination
ISO10441 Certificates
(API 671) for the couplings
(opt) couplings are:-
for - Special-purpose applications

Section 3.0 - Declaration: ‘T’, ‘L’ & ‘H’ Series - Sira 02ATEX9403
We, John Crane‘M’ Seriesthat
declare - under our soleSira 02ATEX9404
responsibility for the supply of the
machinery defined in Section 1.0 above, the said machinery parts are intended to be
incorporated into other machinery or assembled with other machinery to constitute
The technical machinery
documentation is deposited
as covered with the designated notified body in accordance with
by this Directive.
article 13 (b) (ii) of the Directive 2014/34/EU.
The machinery parts, covered by this declaration must not be put into
service until the machinery into which it is to be incorporated has been
declared in conformity with the provisions of the Directive.
SIRA Certification Services
Unit 6, Hawarden Industrial Park
Hawarden, Chester, CH5 3US
United Kingdom

Signed:
Date: 20th July 2016
Signed: Date: 20th July 2016
S. Pennington
S. Pennington
(Engineering Manager - Couplings)
(Engineering Manager - Couplings)
 TSCS
10

Metastream® ATEX I-ATEX EN (rev3)

T SERIES FLEXIBLE
EEC DirectivesDISC
– COUPLING FOR API APPLICATIONS
Page 4 of 4
2014/34/EU (ATEX) & 2006/42/EC (Machinery Directive) Installation, Operation & Maintenance Instructions

John Crane UK Ltd

361-366 Buckingham Avenue
Slough
SL1 4LU
United Kingdom
T: +44 (0) 1753 224 000
F: +44 (0) 1753 224 224
www.johncrane.com

Declaration of Incorporation

E.C. Machinery Directive (2006/42/EC)

Section 1.0 - Machinery Description:

Flexible Power Transmission Ring and Diaphragm Form Membrane Couplings
Types:

‘H’, ‘T’, ‘L’ & ‘M’ Series

Section 2.0 - Applicable Harmonised Standards

ISO13709 (API 610) for centrifugal pumps
ISO14691 couplings for - General-purpose applications
ISO10441 (API 671) (opt) couplings for - Special-purpose applications

Section 3.0 - Declaration:

We, John Crane declare that under our sole responsibility for the supply of the
machinery defined in Section 1.0 above, the said machinery parts are intended to be
incorporated into other machinery or assembled with other machinery to constitute
machinery as covered by this Directive.

The machinery parts, covered by this declaration must not be put into
service until the machinery into which it is to be incorporated has been
declared in conformity with the provisions of the Directive.

Signed:
Date: 20th July 2016

S. Pennington
(Engineering Manager - Couplings)
TSCS
11

T SERIES FLEXIBLE DISC COUPLING FOR API APPLICATIONS

Installation, Operation & Maintenance Instructions
TSCS
12

T SERIES FLEXIBLE DISC COUPLING FOR API APPLICATIONS

Installation, Operation & Maintenance Instructions

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If the products featured will be used in a potentially dangerous and/or hazardous process, your John Crane representative should be consulted prior to
their selection and use. In the interest of continuous development, John Crane Companies reserve the right to alter designs and specifications without
prior notice. It is dangerous to smoke while handling products made from PTFE. Old and new PTFE products must not be incinerated. ISO 9001 and
ISO14001 Certified, details available on request.
©2020 John Crane JC402 Revised 03/20 www.johncrane.com IOM 016-A EN