Specifications

pneumatic control valve actuator
Document: ISO9001, CE certificate,ATEX/CE/MD/CQC.

flange butterfly valve

 

Standards

 

Design and Manufacture:API 609,MSS SP-67,MSS SP-68

 

Inspection and Test:API 598

 

End flange dimension:ASME B16.5(NPS≤24),ASME B16.47 B

 

BW end dimension:ASME B16.25

 

Face to face and end to end:API 609

 

Pressure-temperature ratings:ASME B16.34

 

 

 

Trait and purpose

 

Hard Seal Butterfly Valve triple offset series are our company’s leading products,

 

Which are used in such fields as metallurgy,light industry ,electric power, petrochemistry,

 

Coal gas channel etc.

 

 

 

The Seal principle of hard Seal Butterfly Valve triple offset

 

     The Triple Offset Butterfly Valve Provides a bi-directional bubbletight shut-off.

 

This geometry ensures that the disc seal contacts the body seat only at the final shut-off

 

Position without rubbing or galling, providing atorque generated resilient seal with sufficient

 

“wedging” to ensure auniform seal contact.

 

Materials List (Triple Offset Butterfly Valve)

 

NO	Part Name	Materials
1	Body	ASTM A216 WCB	ASTM A351 CF8	ASTM A351 CF3	ASTM A351 CF8M	ASTM A351 CF3M
2	Pin	ASTMA29-1035/A276 304	ASTM A276 304	ASTM A276 304L	ASTM A276 316	ASTM A276 316L
3	Stem	420/304/316	304	304L	316	316L
4	Disc	WCB/CF8/CF8M	A351 CF8	A351 CF3	A351 CF8M	A351 CF3M
5	Seal Ring	304/316+Graphite/PTFE	304+Graphite/PTFE	304L+Graphite/PTFE	316+Graphite/PTFE	316+Graphite/PTFE
6	Retainer Flange	A105/A182/F304/F316	F304	A182 F304L	A182 F316	A182 F316L
7	Bolt	B7/B8/B8M	B8	B8	B8M	B8M
8	Bolt	B7	B8	B8	B8M	B8M
9	Cover	A105	A182 F304	A182 F304L	A182 F316	A182 F316L
10	Gasket	Graphite	Graphite	Graphite	Graphite	Graphite
11	Bushing	Luberized bronze 304 Nitriding	304 Nitriding	304L Nitriding	316Nitriding	316L Nitriding
12	Packing Seat	A105/304	304	304L	316	316L
13	Packing	Graphite	Graphite	Graphite	Graphite	Graphite
14	Nut	A194 2H	A194 8	A194 8	A194 8M	A194 8M
15	Bolt	A193 B7	A193 B8	A193 B8	A193 B8M	A193 B8M
16	Yoke	WCB	WCB Galvanization,CF8
Drive actuator		Hand actuator, Electric, Electric actuator, Worm gear actuator, Pheumatic actuator.

 

 

NOTE: The chart above only lists out some common composition of valve parts material

compositon according to the customer’s Request or the actual valve working condition.