Note: The dimension of connecting flange can be designed according to customers' requirements.
Materials of major parts
accessory name
Sign of Materials
C
C6
S
SM
SL
Mc
M
H
1
Body
WCB
WC6
CF8
CF8M
CF3M
WCB
Monel
Hast.C
2
Seat
304/316
304/316
316
316L
316L
Monel
Monel
Hast.C
3
Adjust ring
CF8
CF8
CF8M
CF8M
CF3M
CF8M
Monel
Hast.C
4
valve clack
304
304
316
316L
316L
630
Monel
Hast.C
5
valve clack holder
420
420
630
630
316L
316L
Monel
Hast.C
6
Guide
304
304
304
316
316L
316
Monel
Hast.C
7
Spring seat
WCB
WCB
420
420
420
420
420
420
8
Spring
50CrVA
9
Stem
420
10
Bonnet
WCB
WC6
CF8
CF8M
CF3M
WCB
Monel
Hast.C
11
Bellows
316L
Monel
Hast.C
Performance
The allowable tolerance of the set pressure: = ±3%
Overpressure: = 10%
Blow down: = 10%
Tightness: the valves have good seat tightness, conforms for API 527