900lb/1500lb/2500lb High Pressure Forged Steel Flanged Pressure Seal Gate Valve (GAZ61H)

900lb/1500lb/2500lb High Pressure Forged Steel Flanged Pressure Seal Gate Valve (GAZ61H)

Standard specification

Design and manufacture:API 602,BS 5352,ANSI B16.34.
Connection ends conform to:
   -Socket welded ends:ANSI B16.11.
   -(NPT threaded)Screw ends:ANSI B1.20.1.
   -Butt-welded ends:ANSI B 16.25.
   -Flanged ends:ANSI B 16.5.
Inspection & testing:API 598.
Tag: MSS SP 25.

Special Design
   -Bellow Seal forged gate valve.
   -Cryogenic forged gate valve.
   -Extended body forged gate valve.
   -Venting forged gate valve.
   -Twins forged gate valve.

Construction features

Non-Rising Handwheel,
Outside Screw And Yoke,Rising Stem.
Integral Backseat.
Solid Wedge,Renewable Seat Rings,Sprial Wound Gasket.
Spring Loaded To Ensure That Even In The Low-Pressure Sealing Performance As Well.
Low Leakage Test Stem Packing By.
Automatically Adjust The Preload Gland Packing.

Application

  For valves which size is smaller than 2"(DN50), forged steel valves are recommended. Compared with castings,forged valve offer the advantages of more uniform structure, greater density, higher strength integrity, enhanced dimensional characteristics and closer dimensional tolerances.Owing to so many advantageds,the forged valve can be widely used in the fields of petroleum,natural gas,chemical,power and other industries.   

Main Parts and material

No	Part Name	Carbon steel	Alloy Steel	Stainless Steel
1	Body	A105N	A182 F22	A182 F304(L)	A182 F316(L)
2	Sealing ring	A276 420	A276 304	A276 304(L)	A276 316(L)
3	Disc	A182 F430	A182 F304	A182 F304(L)	A182 F316(L)
4	Stem	A182 F6A	A182 F304	A182 F304(L)	A182 F316(L)
5	Seat	A105N	A182 F304	A182 F304(L)	A182 F316(L)
6	Sealing ring	A182 F304	A182 F304	A276 304(L)	A276 316L
7	Bonnet	A105N	A182 F22	A182 F304(L)	A182 F316(L)
8	Eyelet bolt	A193 B7	A193 B16	A193 B8	A193 B8M
9	Pin	A276 420		A182 F304
10	Packing	Flexible graphite		PTFE
11	Screw nut	A194 2H	A194 4	A194 8	A194 8M
12	Packing sleeve	A276 420		A182 F304
13	Packing plate	A105		A182 F304
14	Nut	A194 2H	A194 4	A194 8	A194 8M
15	Stem nut	A276 420
16	Gland	A194 2H	A194 4	A194 8	A194 8M
17	Handwheel	A197
18	Locking nut	A194 2H	A194 4	A194 8	A194 8M
19	Oil cup	Brass
Applicalbe medium		Water,steam,oil.,etc	Water,steam,oil.,etc	Acid.,etc
Applicalbe temperature		-29~425°C	-29~550°C	-29~200°C

Main External Dimensions and Weight 

NPS		1/2"	3/4"	1"	1 1/4"	1 1/2"	2"
L	900~1500LB	140	140	140	178	178	216
	2500LB	186	186	186	232	232	279
H(Open)		321	321	321	380	414	502
W		160	160	180	200	250	280
WT(kg)	900~1500LB	11.5	10.8	10.5	19.6	21.0	55.4
	2500LB	12.3	11.6	10.8	26.0	28.4	60.0

Port	Full Port(FP)/Reduced Port(RP).
Structure	BB(Bolted Bonnet),WB(Welded Bonnet),PSB(Pressure Self-sealing Bonnet).
Rating	Class 150/ 300/ 600/ 800/ 900/ 1500/ 2500/ 4500.
Size Range	3/8" to 2"
End Options	FLG, SW(Socket Welded), Threaded(NPT/BSP), BW(Butt Welded)

 

Carbon Steel	A105,LF2
Stanless Steel	F304,F304L,F316,F316L
Duplex	F51,F55
Alloy	F1,F5,F5A,F9,F11,F22