Control systems Pressure reducing/surplussing valves
4
Materials
2
3 4
7
1
6
9 5
10 12 11
8
4.6 31
No.
Part
Materials
1 2 3
Spring housing
Aluminium epoxy coated
LM 24
Adjustment handwheel
Polypropylene
Top spring plate
Cast iron
DIN 1691 GG 20
BS 2803 685 A55 Range 2
4
Pressure adjustment spring
Silicon chrome spring steel
Stainless steel
316Ti/316L
5
Bellows assembly
Phosphor bronze
BS 2872 CZ 122
6 7 8 9
Bellows assembly gasket
Stainless steel reinforced exfoliated graphite
Hex. bolt (M8 x 25 mm)
Steel zinc plated
BS 3692 Gr. 8.8
Body
Gunmetal
BS 1400 LG2
Cone shaped washer
Stainless steel
ASTM A276 316L
10
Push rod
Stainless steel
ASTM A276 316L
11
Valve seat
Stainless steel
BS 970 431 S29
12
Valve seat gasket
Stainless steel
BS 1449 316 S11
Materials continued on next page
TI-P001-07 CTLS Issue 6
Page 3 of 6
LRV2B and LRV2S Gunmetal Pressure Reducing Valves
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