China Flat gate valve supplier

Flat gate valve

Material of flat gate valve: WCB,A105,LCB,LF2,WC6,CF8,CF8M,CF3,CF3M,A890

Size of flat gate valve: 1inch(DN25)-48inch(DN1200)

Pressure of flat gate valve: 150LB(PN10)-1500LB(PN250)

Connection type: Flange(RF,EM,RTJ),SW,BW.

Kind of drive: Wrench,Gear,Pneumatic and electric

Design standard: API6D

working medium: Water,oil, Natural gas

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Catalogue:

Cast steel gate,globe,check valves.pdf

Introduction for flat gate valve

The flat-plate gate valve is a slide valve with its closure member as a parallel wedge disc and the apparatus on the mouth of the petroleum and natural gas extracting well is just the said valve,with its closure member to be either a single wedge disc or a double one with an unfurling mechanism therein.

The pressing force of the wedge disc towards the seat ring is controlled by the medium pressure acting on the floating wedge disc or seat ring,The said valve features a small flow resistance,similar to that of a short straight pipe and without necking,The flat-plate gate valve with diversion holes is mounted on a pipeline and can

do pipe cleaning directly with a pipe cleaner.As the wedge disc slides on the surfaces of the two seat rings,so the flat-plate is also applicable for the medium with suspended grains,The sealing face of the said valve is positioned automatically in fact and will not get damaged along with the hot deformation of the body and overloaded along with

the hot extension of the stem when the valve is closed in cold state,The flat-plate gate valve without diversion holes

will not ask the closed position of the wedge disc for a higher precision when the valve is closed.

Parallel slide gate valve

Material specifications~~~~~~~~~ER410 and 18-8SS orht(co-cra)

NO.	Part Name	Material
NO.	Part Name	WCB	LCB	WC6	WC9	C5	CF8	CF8M	CF3	CF3M
1	Body	A216 WCB	A352 LCB	A217 WC6	A217 WC9	A217 C5	A351 CF8	A351 CF8M	A351 CF3	A351 CF3M
2	Seat	A105	A350 LF2	A182 F304	A182 F304	A182 F304	A182 F304	A182 F316	A182 F304L	A182 F316L
3	Pluice Plate	A216 WCB	A325 LCB	A217 WC6	A217 WC9	A217 C5	A351 CF8	A351 CF8M	A351 CF3	A351 CF3M
4	O-Ring	NBR/FEP
5	Gage Block	A193 B7	A320 L7	A193 B16			A320 B8
6	Stem	A182 F6a	A182 F304	A182 F304	A182 F304	A182 F304	A182 F304	A182 F316	A182 F304L	A182 F316L
7	Gasket	Flexible Graphite
8	Bolt	A193 B7	A320 L7	A193 B16			A193 B8	A194 B8M
9	Nut	A194 2H	A194 L7	A194 4			A194 8	A194 8M
10	Bonnet	A216 WCB	A325 LCB	A217 WC6	A217 WC9	A217 C5	A351 CF8	A351 CF8M	A351 CF3	A351 CF3M
11	Backseat Bushing	A182 F6a	A182 F6	A182 F304	A182 F304	A182 F304	A182 F304	A182 F316	A182 F304L	A182 F316L
12	Clib Talker	Copper or Carbon steel or Stainless Steel
13	Separate Link	ASTM A182 F410
14	Packing	Graphite+ASBESTOS
15	Yoke	A216 WCB	A325 LCB	A217 WC6	A217 WC9	A217 C5	A351 CF8	A351 CF8M	A351 CF3	A351 CF3M
16	Stem nut	A439 D-2~~Cu-Alloy
17	Oil Cup	Copper or Carbon steel or Stainless Steel
18	Retaining Nut	Carbon Steel or Alloy Steel
19	Handwheel	A216 WCB
20	Protector	A105N
21	Indicator	ASTM A182 F410
Seating face overlay		ER410/ER316/STL

The materials according to ASTM standard

PLATE GATE VALVE

Size	in	2	3	4	6	8	10	12	14	16	18	20	24	28	30	36	40
mm		50	80	100	150	200	250	300	350	400	450	500	600	700	750	900	1000
150Lb (20Kg/c?O)	L	7	8	9	10-1/2	11-1/2	13	14	15	16	17	18	20	24	26	32	38
	d	2	3	4	6	8	10	12	13-1/4	15-1/4	17-1/4	19-1/4	23-1/4	27	29	34-1/2	38-1/2
	H	23	26-3/4	34	45-3/8	52-3/8	59-1/2	68-5/8	76	82-7/8	90	98-1/4	113	127-1/4	136-1/4	157	172
	H1	6	8	10	13-1/2	16-1/2	19-1/2	22-3/4	25-1/4	28-3/8	31-3/8	34-1/2	41-1/8	46-7/8	50	59	65-11/16
	D0	10	10	10	14	14	16	18	20	24	24	24	24	24	24	36	36

Size	in	2	3	4	6	8	10	12	14	16	18	20	24	28	30	36
mm		50	80	100	150	200	250	300	350	400	450	500	600	700	750	900
300Lb (50Kg/c?O)	L	8-1/2	11-1/8	12	15-7/8	16-1/2	18	19-3/4	30	33	36	39	45	53	55	68
	d	2	3	4	6	8	10	12	13-1/4	15-1/4	17-1/4	19-1/4	23-1/4	27	29	34-1/2
	H	23	26-3/4	34	45-3/8	52-3/8	59-1/2	68-5/8	75-5/8	80-5/8	88	97-3/4	114-1/8	129-1/8	139-1/8	161
	H1	6	8	10	13-1/2	16-1/2	19-1/2	22-3/4	25-1/4	28-1/8	31	34-1/2	41-1/8	47	50-5/8	59-1/4
	D0	10	10	10	14	14	16	18	20	24	24	24	24	24	36	36

Size	in	2	3	4	6	8	10	12	14	16	18	20	24	28	30
mm		50	80	100	150	200	250	300	350	400	450	500	600	700	750
400Lb (64Kg/c?O)	L	11-1/2	14	17	19-1/2	23-1/2	26-1/2	30	32-1/2	35-1/2	38-1/2	41-1/2	48-1/2	55	60
	d	2	3	4	6	8	10	12	13-1/4	15-1/4	17-1/4	19-1/4	23-1/4	27	29
	H	23-1/4	27	34-1/4	46-3/8	56-3/8	59-1/2	68-7/8	75-3/8	81	89-1/4	98-1/8	115-1/2	130	141
	H1	6	8	10	13-5/8	16-1/2	19-3/4	23	26	28-3/4	31-1/2	35	41-7/8	51-1/2	60
	D0	10	10	10	14	14	16	18	20	24	24	24	24	36	36