Main Diaphragm Set for the DP Type Valve

Main Diaphragm Set for the DP Type Valve
1000133/2
IM-S10-22
CH Issue 2
Main Diaphragm Set for the
DP Type Valve
Fitting Instructions
Before dismantling, isolate valve and zero
pressure.
2
1. Undo long union nut and pull away.
2. Undo M12 nuts and bolts.
3. Drop away lower diaphragm chamber, the
two diaphragms, diaphragm plate and push
rod assembly.
4. Thoroughly clean upper and lower
diaphragm chamber contact faces.
5. Replace diaphragm plate and push rod
assembly and loosely fit lower diaphragm
chamber on two bolts either side of the
union connection to locate spigot in recess.
1
6. Bring the two new diaphragms together
(where precoated sealant is applied this
should face outwards) and slide into
position.
4
7. Push lower diaphragm chamber home to
locate in recess and refit M12 nuts and
bolts. Progressively and evenly tighten to
a torque of 80 - 100 N m (59 - 73 lbf ft).
8. Retighten long union nut to ensure a
steam tight seal.
3
Full Installation and Maintenance Instructions
(IM) are available from Spirax Sarco for each
product range as listed below
Valve type
DP17, DP17E, DP17R
DP17T, DP17TE
DP27
37D, 37DE
DP143, DP163
SDP143
Printed in theXX
UKIssue X
IM-XXX-XX
IM reference
IM-P100-05
IM-P101-04
IM-P470-03
IM-P102-04
IM-P006-07
IM-P004-05
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7
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© Copyright 2005
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