Gate Valve - Water Seal Gate valve - Zhejiang Huagong valve Co., Ltd.

Contact Person: shengna ge

Tel: 0086-0577-67351919

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E-mail: huagongvalve@zjhgv.com

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Product Info:

Products Name: Water Seal Gate valve

Product Catalog: Gate Valve

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Description	Send Inquiry

1 、This factory Bonnet the packing room has the water seal structure, when the connection passes over pressure 0, the 6-1MPa water, may cause the system and the atmosphere isolates, guaranteed the system has good gas tightness 。
2 、 DS/The Z series uses Double gate the disc bidirectional spring-loaded seal, opens shuts, rapid, the seal nimbly is reliable.
3 、Product material quality simple, compact reasonable, the overhaul is convenient, the service life is long.
4 、Sits the start-stop system on piping to use, must be at all opens or the ajar condition, does not have to use in adjusting the current capacity。
5 、A valve connection form minute flange, the weld two kinds, the drive type is Hand, the motor two kinds.
6 、 DS series liquid valve is suitable for Nominal Pressure ≦10.0MPa, Operating temperature ≦ 425℃, works agent is the water, steam, oil field and on non-caustic gas pipe makes the start-stop system to use, is suitable especially for the thermoelectric power station steam engine vacuum condenser system.

Chief property and specification

Test pressure	PN/MPa
Test pressure	1.0	1.6	2.5	4.0	6.4	10.0
Shell Strength test	1.5	2.4	3.8	6.0	9.6	15.0
Seal test	1.1	1.8	2.8	4.4	7.0	11.0
Back seal test	1.1	1.8	2.8	4.4	7.0	11.0
Leak- proofness test	0.5～O.7

Scope of use

Product classification	Working temperature	Suitable medium
Carbon steel	≤425	Water，Stem，oilgoods non-corrosive gas
Alloy steel	≤540	Water，Stem，oilgoods non-corrosive gas

Material for Main Parts

Product type	Part name
Product type	B0dy，BOnnet，Yoke	Valve rod	Walge gate Disc Sealface	Seatring seal face	Yoke nut	Packing
Carbon steel	WCB 25	1Crl3 或2Crl3	Sainlesssteelor carbidealloy	Stainlesssteel	Albronze	F18xible graphite
Alloy steel	WC6 Cr5M01	38CrMoAlA 20CrlM01VA	钴基合金	Carbide alloy	Albronze	F18xible graphite

Main dimensions

DS/Z64H-16、25 DS/Z64Y-16I、25I

DN/mm Nominal diameter	L	α	H	DO	PNl.6/MPa		PN2.5/MPa
DN/mm Nominal diameter	L	α	H	DO	D	D1	D	D1
50	250	37°30′	334	250	58	50	64	4g
65	270	37°30′	439	250	75	65	82	67
80	280	37°30′	495	300	91	79	95	77
100	300	37°30′	575	350	11O	97	117	101
125	325	37°30′	587	350	136	121	144	126
150	350	37°30′	607	350	163	146	172	158
200	400	37°30′	740	400	223	202	223	202
250	450	37°30′	863	400	278	254	278	254
300	500	37°30′	990	400	330	305	330	305
350	550	37°30′	1137	500	382	352	382	352
400	600	37°30′	1523	500	432	399	432	39g
450	650	37°30′	1618	600	485	451	485	451
500	700	37°30′	1657	600	535	501	535	499
600	800	37°30′	1746	700	636	601	636	599

DS/Z64H-40、64、100 DS/Z64Y-40I、64I、100I

DN/mm Nominal diameter	L	D	α	PN4.O/MPa			PN6.4/MPa			PNlO.0/MPa
DN/mm Nominal diameter	L	D	α	D1	H	D0	D1	H	DO	D1	H	D0
50	250	64	37°30′	49	345	300	50	350	300	49	350	300
65	270	83	37°30′	67	441	300	66	447	300	64	447	300
80	280	96	37°30′	79	495	350	77	499	350	75	499	350
100	300	117	37°30′	101	575	350	99	582	400	87	582	400
125	325	144	37°30′	126	587	400	129	590	400	125	590	400
150	350	172	37°30′	152	607	400	150	611	450	145	611	450
200	400	223	37°30′	200	740	450	198	745	550	190	747	550
250	450	278	37°30′	252	863	550	246	867	650	236	869	650
300	500	330	37°30′	302	1008	650	294	1008	750	282	1013	750
350	550	382	37°30′	350	1142	750	342	1148	800	334	1148	850
400	650	432	37°30′	397	1527	850	387	1531	900	377	1533	950

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