Bellows Sealed Gate Valves

FAVA Valves manufactures forged steel Bellow Sealed Gate Valves in three kinds bonnet design—Bolted Bonnet,Welded Bonnet and Pressure Sealed Bonnet.

Construction Features of bellow sealed gate valves:
Forged Steel,Outside Screw and Yoke,Rising Stem,
Non-Rising Handwheel,Integral Backseat,
Solid Wedge,Renewable Seat Rings,Sprial Wound Gasket,
Reduced Bore or Full Port,
Socket Welded,Threaded,Butt Welded,Flanged End.

Application Standard of bellow sealed gate valves:
API 602,ASME B16.34,BS 5352
Testing according to API 598
Marking to MSS SP25
Socket Welded Ends to ASME B16.11
Screwed Ends to ASME B1.20.1
Butt Welded Ends to ASME B16.25
Flanged Ends to ASME B16.5


 

We could provide forged bellow sealed gate valves with different materials. If you do not find the material you need, please contact us.

Part Name	CS to ASTM	AS to ASTM	SS to ASTm
	Type A105	Type A182 F22	Type A182 F304	Type A182 F316(L)
Body	A105	A182 F22	A182 F304(L)	A182 F316(L)
Disc	A276 420	A276 304	A276 304(L)	A276 316(L)
Gasket	Corrugated SS + graphite		SS + PTFE
Bonnet Bolt	A193 B7	A193 B16	A193 B8	A193 B8M
Stem	A182 F6	A182 F304	A182 F304(L)	A182 F316(L)
Bellow Pipe	SS
Bonnet	A105	A182 F22	A182 F604(L)	A182 F316(L)
Stem Packing	Flexible Graphite		PTFE
Pin	A276 420		A182 F304
Gland	A276 420		A182 F304
Gland Eyebolt	A193 B7	A193 B16	A193 B8	A193 B8M
Gland Flange	A216 WCB		A351 CF8
Gland Nut	A194 2H	A194 4	A194 8	A194 8M
Bearing Washer	SS
Yoke Nut	A276 410
Nameplate	SS
Handwheel	A197
H.W.Nut	A194 2H	A194 4	A194 8	A194 8M
Suitable Medium	W.O.G.etc	W.O.G.etc	HNO3,CH3OOH etc
Suitable Temperature	-29~425	-29~550	-29~180