Control systems Pressure reducing/surplussing valves
4
Materials
6 8
DN25 to DN50
1
15
DN15 to DN20
4
3
5
7
11 12
9
12
2
13
11
4.6 67
14 15
10
DN65 and DN100
No.
Part
Material
DN15 to DN50
SG iron
DIN 1693 GGG 40.3
1
Body
DN65 to DN100
SG iron
ENG JS 400-18-LT
2 3
Bonnet
SG iron
DIN 1693 GGG 40.3
Valve seat
Stainless steel
BS 970 431 S29
DN15
Stainless steel
4
Valve seat gasket
DN20 and DN25
Mild steel
DN32 to DN50
Reinforced exfoliated graphite
5 6 7 8 9
Valve head
Stainless steel
BS 970 431 S29
Valve head screw
DN15 and DN20
Stainless steel
BS 6105 A2
Valve head seal
Arlon 1555
Bush
DN25 to DN20
Stainless steel
BS 970 431 S29
Bush (part of item 10)
DN25 to DN100
Stainless steel
BS 970 431 S29
10
Balancing bellows assembly
DN25 to DN100
AISI 316L
11
Balancing bellows gasket
DN25 to DN100
Reinforced exfoliated graphite
12 13
Bonnet gasket
Reinforced exfoliated graphite
Bonnet nuts
Steel
DIN 267 Pt13 Gr. 8
DN15 to DN40
M10
14
Bonnet studs
DN50 and DN65
M12
Steel
DIN 267 Pt13 Gr. 8.8
DN80 and DN100
M16
15
Pillars
Zinc plated steel
BS 970 230 M07
Materials are continued on the next page
TI-P205-01 CTLS Issue 12
Page 3 of 11
DEP7 SG Iron Excess Pressure Valve
Powered by FlippingBook