Control valves
Positioners and controllers
Page 5 of 5
Spare parts
Available spares
Maintenance kit
A stand-by set of spares for general maintenance purposes and covers all spares marked *
* Main diaphragm
Pilot valve assembly
* Pilot valve packless gland set
Main valve assembly
* Internal strainer
* Main valve return spring
(2 off)
A
B, C, D, E
H, J
K, L
M
N
Z, (3 off) Y
Control head
When ordering state range and length of capillary tube. Normally stocked in capillary lengths of 2 m.
Available in multiples of 2 m up to a maximum of 14 m (at extra cost).
Range A 16°C − 49°C
Range B 38°C − 71°C
'O' ring for sensor bulb adaptor
* Control pipe assembly
* Gasket set
Set of pilot valve housing securing stud and nuts
Set of main body studs and nuts
Set of diaphragm securing bolts and nuts
Set of control head securing screws
Solenoid valve type 37DE only
Coil
Valve seat and core assembly
How to order
Range C 49°C − 82°C
Range D 71°C − 104°C
(packet of 3)
Range E 93°C − 127°C
(3 off)
(Set of 4)
(Set of 4)
Valve sizes:
(set of 3)
DN15 to DN32 (Set of 10)
DN40 to DN50 (Set of 12)
U
P
R
S
T
V
Y
W
X1
X2, X3, X4, X5
Always order spares by using the description given in the column headed 'Available spares' and state the size and type (37D or 37DE)
of temperature control valve and whether screwed or flanged.
Example: 1 - Main valve assembly for a Spirax Sarco DN25 Type DP37D temperature control valve.
How to fit
See the Installation and Maintenance Instructions supplied with the product. Further copies are available on request.
Interchangeability of spares
The following table shows how in certain sizes some parts are interchangeable. For example in the line headed 'Main diaphragm'
the diaphragm used in the screwed valves 1⁄2" and 3⁄4" is common to these sizes by the letter 'a', the letter 'c' indicates that one diaphragm
is common to the DN40 and DN50 valves. All spares marked † are interchangeable with the DP17 pressure reducing valve. Spares
marked 'o' are interchangeable with the DP17T and DP17TE pilot operated pressure/temperature control valves.
Screwed
1⁄2"LC
1⁄2"
3⁄4"
1"
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
b
a
a
a
a
a
a
a
a
a
a
a
a
a
a
c
a
a
a
a
a
a
a
a
a
a
b
b
a
a
d
b
b
a
a
b
a
a
a
a
a
f
a
a
a
a
f
a
a
a
f
a
a
a
a
a
f
a
a
a
b
f
a
a
a
f
a
a
a
a
a
a
a
a
a
c
a
a
a
a
a
a
a
a
a
a
b
b
a
a
d
b
b
a
a
b
a
a
a
a
a
c
b
a
a
e
c
b
a
a
c
a
a
a
a
a
d
c
a
a
f
d
c
a
a
d
b
b
b
b
a
Size DN
Maintenance kit
†o Main diaphragm
†o Pilot valve assembly
†o Pilot valve packless gland set
†o Main valve assembly
†o Internal strainer
†o Main valve return spring
o Control head
o 'O' ring for sensor bulb adaptor
Control pipe assembly
† Gasket set
† Set of pilot valve housing securing studs and nuts
15LC 15
20
Flanged
25
32
40
50
e
c
a
a
g
e
c
a
a
e
b
b
b
b
a
† o
† o
† o
Set of main body studs and nuts
Set of diaphragm securing bolts and nuts
Set of control head securing screws
37D and 37DE Pilot Operated Temperature Control Valve with SG Iron Body
TI-P102-01 CH Issue 4
Page 5 of 5
4.4.26
