Gate Valve (Extended Body Forged)

Vervo Inc manufactures forged steel gate valve (Extended Body Forged) in three kinds bonnet design—Bolted Bonnet,Welded Bonnet and Pressure Sealed Bonnet.

Construction Features:
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:
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

NO.	Part Name	CS to ASTM	AS to ASTM	SS to ASTM
		Type A105	Type F22	Type F304(L)	Type F316(L)
1	Body	A105	A182 F22	A182 F304(L)	A182 F316(L)
2	Seat Ring	A276 420	A276 304	A276 304(L)	A276 316(L)
3	Wedge	A276 410 & 403	A182 F304	A182 F304(L)	A182 F316(L)
4	Gasket	Corrugated SS + graphite		SS + PTFE
5	Stem	A182 F6	A182 F304	A182 F304(L)	A182 F316(L)
6	Bonnet Bolt	A193 B7	A193 B16	A193 B8	A193 B8M
7	Pin	A276 420		A276 304
8	Gland Eyebolt	A193 B7	A193 B16	A193 B8	A193 B8M
9	Gland Nut	A194 2H	A194 4	A194 8	A194 8M
10	Nameplate	SS
11	Hand wheel	A197
12	H.W. Lock Nut	A194 2H	A194 4	A194 8	A194 8M
13	Yoke Nut	A276 420
14	Gland Flange	A105	A182 F11	A182 F304(L)	A182 F316(L)
15	Gland	A276 410		A182 F304(L)	A182 F316(L)
16	Stem Packing	Flexible Graphite		PTFE
17	Bonnet	A105	A182 F22	A182 F304(L)	A182 F316(L)
Suitable Medium		W.O.G. etc	W.O.G. etc	HNO3CH3OOH etc
Suitable Temperature		-29℃~425℃	-29℃~550℃	-29℃~180℃

Note: Other materials are available upon request.