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Gate Valve Series

• API 600 Cast Steel Gate Valve
• API 602 Forged Steel Gate Valve
• API 603 Cast Stainless Steel Gate Valve
• AWWA Resilient Seated Gate Valve
• Knife Gate Valve
• Bellows Seal Gate Valve
• Pressure Seal Gate Valve
• Cryogenic Gate Valve
• Slab Gate Valve
• Cast Iron Gate Valve

Product drawing»

Structural drawing»

Stainless Steel Flange Gate Valve

product drawing

The structural features

Exquisite Selection, according to the domestic and international standards, and the materials has the overall high quality.
2、In line with the requirements of domestic and foreign advanced standards, it has sealing reliability, excellent performance and beautiful shape.
3、The match of sealing is advanced and reasonable. The disc and seat sealing surface is formed by different hardness stellite cobalt-based alloy cladding, it has sealing reliability, high hardness, abrasion resistance, high temperature resistance, corrosion-resistant , good anti-abrasion performance, and a long service life.
4、After quenching and surface nitriding treatment, the stem has a good anti-corrosion, anti-scratch and abrasion resistance.
5、Using flexible wedge disc structure, the large-diameter sets the thrust bearings, and the friction is small, and it is equipped with impact handwheel, hoist easily.
6、It can adopt a variety of standard flange and flange sealing surface forms, and fits a variety projects requirements and customers’ needs.

Dimensions & constructral diagram

The materials of main parts

part name	ZG1Cr18Ni9Ti 304    CF8	ZG00Cr18Ni10 304L    CF3	ZG1Cr18Ni12Mo2Ti 316    CF8M	ZG00Cr17Ni14Mo2 316L     CF3M
body,bonnet	0Cr18Ni9	00Cr18Ni10	0Cr18Ni9Mo2	00Cr18Ni10Mo2
disc	0Cr18Ni9	00Cr18Ni10	0Cr18Ni9Mo2	00Cr18Ni10Mo2
stem	0Cr18Ni9	00Cr18Ni10	0Cr18Ni9Mo2	00Cr18Ni10Mo2
stem nut	Aluminium bronze
packing	PTFE weave	PTFE weave	PTFE weave	PTFE weave
gasket	304+PTFE	304L+PTFE	316+PTFE	316L+PTFE
gland	0Cr18Ni9	00Cr18Ni10	0Cr18Ni9Mo2	00Cr18Ni10Mo2
bolt	stainless steel
nut	stainless steel
handwheel	ductile cast iron, cast steel

The main connection dimensions of PN1.6Mpa

model	nominal diameter	dimension(mm)
		L	D	D1	D2	b-f	z-Φd	H	D0
Z41W-1.6MPa	15	130	95	65	45	14-2	4-14	170	120
	20	150	105	75	55	14-2	4-14	200	120
	25	160	115	85	65	14-2	4-14	215	140
	32	180	135	100	78	16-2	4-18	260	160
	40	200	145	110	85	16-3	4-18	290	200
	50	250	160	125	100	16-3	4-18	345	220
	65	265	180	145	120	18-3	4-18	360	240
	80	280	195	160	135	20-3	8-18	385	280
	100	300	215	180	155	20-3	8-18	430	300
	125	325	245	210	185	22-3	8-18	520	320
	150	350	280	240	210	24-3	8-23	610	350
	200	400	335	295	265	26-3	12-23	765	400
	250	450	405	355	320	30-3	12-25	895	450
	300	500	460	410	375	30-4	12-25	1145	500
	350	550	520	470	435	34-4	16-25	1200	550
	400	600	580	525	485	36-4	16-30	1400	600
	450	650	640	585	545	40-4	20-30	1500	650
	500	700	705	650	608	44-4	20-34	1630	700
	600	800	840	770	718	48-5	20-41	1830	800

The main connection dimensions of PN2.5Mpa

model	nominal diameter	dimension (mm)
		L	D	D1	D2	b-f	z-Φd	H	D0
Z41W-2.5MPa	15	130	95	65	45	16-2	4-14	170	120
	20	150	105	75	55	16-2	4-14	200	120
	25	160	115	85	65	16-2	4-14	215	140
	32	180	135	100	78	18-2	4-18	260	160
	40	200	145	110	85	18-3	4-18	290	200
	50	250	160	125	100	20-3	4-18	345	220
	65	265	180	145	120	22-3	8-18	360	240
	80	280	195	160	135	22-3	8-18	385	280
	100	300	230	190	160	24-3	8-23	430	300
	125	325	270	220	188	28-3	8-25	520	320
	150	350	300	250	218	30-3	8-25	610	350
	200	400	360	310	278	34-3	12-25	765	400
	250	450	425	370	332	36-3	12-30	900	450
	300	500	485	430	390	40-4	16-30	1130	500
	350	550	550	490	448	44-4	16-34	1250	550
	400	600	610	550	505	48-4	16-34	1430	600
	450	650	660	600	555	50-4	20-34	1520	650
	500	700	730	660	610	52-4	20-41	1650	700
	600	800	840	770	718	56-5	20-41	1850	800

The main connection dimensions of PN4.0Mpa

model	nominal diameter	dimension(mm)
		L	D	D1	D2	D6	b-f	z-Φd	H
Z41W-4.0MPa	15	130	95	65	45	40	16-2	4-14	170
	20	150	105	75	55	51	16-2	4-14	200
	25	160	115	85	65	58	16-2	4-14	215
	32	180	135	100	78	66	18-2	4-18	260
	40	200	145	110	85	76	18-3	4-18	290
	50	250	160	125	100	88	20-3	4-18	345
	65	280	180	145	120	110	22-3	8-18	360
	80	310	195	160	135	121	22-3	8-18	385
	100	350	230	190	160	150	24-3	8-23	430
	125	400	270	220	188	176	28-3	8-25	530

The main connection dimensions of PN6.4Mpa

model	150	450	300	250	218	204	30-3	8-25	620
	200	550	375	320	282	260	38-3	12-30	780
	250	650	445	385	345	313	42-3	12-34	900
Z41W-6.4MPa	15	170	105	75	55	41	18-2	4-14	175
	20	190	125	90	68	51	20-2	4-18	200
	25	210	135	100	78	58	22-2	4-18	215
	32	230	150	110	82	66	24-2	4-23	270
	40	240	165	125	95	76	24-3	4-23	300
	50	250	175	135	105	88	26-3	4-23	370
	65	280	200	160	130	110	28-3	8-23	385
	80	310	210	170	140	121	30-3	8-23	400
	100	350	250	200	168	150	32-3	8-25	460
	125	400	295	240	202	176	36-3	8-30	570
	150	450	340	280	240	204	38-3	8-34	660
	200	550	405	345	300	260	44-3	12-34	820
	250	650	470	400	352	313	48-3	12-41	1000

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