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5
FMPRV41
No Part
Material
Standard
1
Adjustments screw
Carbon Steel
IS1367Gr14
2
Adjustment lock nut
SS Type 304
3
Spring housing
SG iron
EN-JS1025 DIN EN 1563
4
Top spring pad
C-20
IS2062
5
Pressure adjustment Spring SS Type 302
IS4454 Part IV Gr.1
6 Bottom spring pad
SS Type 304
ASTM A276
7
Spring housing
Securing nut
Carbon Steel
HT IS 1367
Securing studs
Carbon Steel
HT IS 1367
DN 15-32
M10x95mm
DN 40, 50
M12x95mm
8
Pilot diaphragms
SS Type 304
ASTM A240
9
Pilot valve chamber
SG iron
EN-JS1025 DIN EN1563
10
Pilot valve plunger
SS Type 304
11
Pilot valve seat with
SS
BS 970 431 S29
integral seal
+PTFE
12
Pilot valve ball
SS
AISI 420
13
Pilot valve Spring
SS
BS 2057 302 S26
14
Pilot Valve clip
SS
ASTM A240 Type 301
15
Pilot filter cap gasket
SS
BS 1449-304-S16
16
Pilot filter cap
SS
ASTM A743Gr. CA 40
17
Pilot filter element
Bronze
18
Internal strainer
SS
ASTM A240 Type 304
19
Body gasket
SS forced
exfoliated graphite
20
Main valve return spring
Stainless Steel
BS 2056 302 S26
21
Main valve
Stainless Steel
ASTM A276 Type 420
22
Main valve seat
Stainless Steel
ASTM A276 Type 420
23
Balance pipe assembly
Stainless Steel
ASTM A213 Type 304
24
Main Valve body
SG iron
EN JS1025 DIN EN 1563
25
Lower diaphragm chamber SG iron
EN-JS1025 DIN EN 163
26
Lower diaphragm chamber
Securing nuts
Carbon steel
S1367
Securing Bolts
Carbon steel
S 1367
DN 15 - 25
M12x50mm
DN 40, 50
M12x50mm
27
Main diaphragm pad
SS Type 304
ASTM A240
28
Lower diaphragm pad
SS Type 304
ASTM A276
29
Pushrod
SS Type 431
30
Lock nut
SS Type 316
31
Control pipe assembly
SS Type 304
ASTM A213
32
Name plate
SS
Materials: