Industrial Valve Manufacturer- Zhongchi Valve Group Co., Ltd.

Professional Ball Valve & Check Valve Manufacturer

1. Over 18 Years of Industry Experience
2. Multiple Connection Options
3. Pressure-Tested for Industrial Applications
4. Low MOQ from 2 Units

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One-Stop Industrial Valve Solution

Supporting low MOQ from 2 pieces, we meet needs for samples, projects, and bulk supply.

Designed and manufactured specifically for industrial fluid control applications.
Five main types of ball valves and check valves
We provide ball valves and check valves to meet different industrial pipeline control requirements：
Threaded Ball Valve – Featuring a floating ball structure, 90° rotation enables quick opening and closing. The straight-through flow path reduces fluid resistance, suitable for water, compressed air, oil, and other media.
Flanged Ball Valve – Connected by flanges for stable installation and reliable sealing. Suitable for high-pressure, high-temperature, and high-flow industrial piping systems.
Welded Ball Valve – Using butt welding or socket welding connections, they enhance pipeline stability and reduce loosening risks, ideal for long-term fixed installations.
Quick-install Ball Valve – Using standardized clamps for fast connection without welding or bolts, improving installation and maintenance efficiency.
Check Valve – Automatically prevent media backflow by controlling valve disc opening and closing through pressure differences, ensuring one-way fluid flow.

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Ball Valve

Threaded Ball Valve
Flanged Ball Valve
Welded Ball Valve
Quick-install Ball Valve

2PC Manual Internal Threaded Ball Valve

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Three Pieces Manual Female Threaded Ball Valve

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Two Pieces High Platform Female Threaded Ball Valve

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Three-Ways Threaded Ball Valve

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Soft-seal Floating Flange Ball Valve

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Design Features:
Flanged ends:
JB/T 79-2015, GB/T 9124.1-2019
Test & inspection:
GB/T 26480-2011, GB/T 13927-2022
JB/T 9092-1999
Applicable medium:
Water, oil, gas Ect

Main parts and materials

ITEM

PART

MAIN MATERIAL

Body

CF8 CF3 CF8M CF3M WCB

Bonnet

CF8 CF3 CF8M CF3M WCB

Ball

304 304L 316 316L

Stem

F304 F304L F316 F316L 2Cr13

Valve Seat

PTFE RPTFE

Packing

PTFE RPTFE Flexible Graphite

Gasket

PTFE RPTFE Spiral Wound Gasket

Bolt

B8 B7

Nut

A194-8 2H

Handle

WCB Aluminum Alloy

Main dimensions(PN16) GB/T 9124.1-2019

DN	L		D	D1	D2	b	f	n-Φd	W
15	130		95	65	45	16	2	4-Φ14	140
20	130	140	105	75	58	18	2	4-Φ14	140

25	140	150	115	85	68	18	2	4-Φ14	140

32	165		140	100	78	18	2	4-Φ18	150

40	165	180	150	110	88	18	3	4-Φ18	190
50	203	200	165	125	102	18	3	4-Φ18	200
65	222	220	185	145	122	18	3	8-Φ18	230
80	241	250	200	160	138	20	3	8-Φ18	260
100	305	280	220	180	158	20	3	8-Φ18	280
125	356	320	250	210	188	22	3	8-Φ18	360

150	394	360	285	240	212	22	3	8-Φ22	630

200	457	400	340	295	268	24	3	12-Φ22	780

250	533		405	355	320	26	3	12-Φ26	/
300	610		460	410	378	28	3	12-Φ26	/

Main dimensions(PN25) GB/T 9124.1-2019

DN	L		D	D1	D2	b	n-Φd	W
15	130		95	65	45	16	4-Φ14	140
20	130	140	105	75	58	18	4-Φ14	140
25	140	150	115	85	68	18	4-Φ14	140
32	165		140	100	78	18	4-Φ18	150
40	165	180	150	110	88	18	4-Φ18	190
50	203	200	165	125	102	20	4-Φ18	200
65	222	220	185	145	122	22	8-Φ18	230
80	241	250	200	160	138	24	8-Φ18	260
100	305	280	235	190	162	24	8-Φ22	280
125	356	320	270	220	188	26	8-Φ26	360
150	394	360	300	250	218	28	8-Φ26	630
200	457	400	360	310	278	30	12-Φ26	780
250	533		425	370	335	32	12-Φ30	/

Main dimensions(PN40) GB/T 9124.1-2019

DN	L	D	D1	D2	b	Y	f2	n-Φd	W


15	130	95	65	45	16	40	4	4-Φ14	140

20	140	105	75	58	18	51	4	4-Φ14	140


25	150	115	85	68	18	58	4	4-Φ14	140

32	180	140	100	78	18	66	4	4-Φ18	150

40	200	150	110	88	18	76	4	4-Φ18	190


50	220	165	125	102	20	88	4	4-Φ18	200

65	250	185	145	122	22	110	4	8-Φ18	230

80	280	200	160	138	24	121	4	8-Φ18	260

100	320	235	190	162	24	150	4.5	8-Φ22	280
125	400	270	220	188	26	176	4.5	8-Φ26	360

150	400	300	250	218	28	204	4.5	8-Φ26	630
200	500	375	320	285	34	260	4.5	12-Φ30	780

250	568	450	385	345	38	313	4.5	12-Φ33	/

Main dimensions(PN63) JB/T 79-2015

DN	L	D	D1	D2	b	Y	f2	n-Φd	W

15	140	105	75	55	18	40	4	4-Φ14	140

20	155	125	90	68	20	51	4	4-Φ18	140

25	180	135	100	78	22	58	4	4-Φ18	150

32	200	150	110	82	24	66	4	4-Φ23	190
40	220	165	125	95	24	76	4	4-Φ23	200
50	250	175	135	105	26	88	4	4-Φ23	230
65	280	200	160	130	28	110	4	8-Φ23	260

80	320	210	170	140	30	121	4	8-Φ23	280

100	360	250	200	168	32	150	4.5	8-Φ25	360

125	455	295	240	202	36	176	4.5	8-Φ30	630

150	495	340	280	240	38	204	4.5	8-Φ34	780

The dimensions above are for reference only.

Soft Sealed Trunnion Flange Ball Valve

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American Standard Flanged Ball Valve

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Design Features:
Design standard:
API 608, API 6D, ASME B16.34
Flanged ends:
ASME B16.5, ANSI B16.5
Test & inspection:
API598
Applicable medium:
Water, oil, gas, Ect

Main parts and materials

ITEM

PART

MAIN MATERIAL

Body

CF8 CF3M WCB

Bonnet

CF8 CF3M WCB

Ball

304 316L

Stem

F304 F316L 2Cr13

Valve Seat

PTFE RPTFE

Gasket

PTFE RPTFE

Bolt

B8 B7

Nut

A194-8 2H

Packing

PTFE RPTFE

Packing Gland

CF8 WCB

Packing Bolt

B8 B7

Positioning Sheet

304 Carbon Steel

Handle

WCB Aluminum Alloy

Main dimensions

SIZE	Class 150LB									Class 300LB
	d	L	D		D1	D2	T	f	n-Φd	d	L	D		D1	D2	T	f	n-Φd

1/2"	15	108	90	88.9	60.3	34.9	8	2	4-Φ16	15	140	95	95.3	66.7	34.9	12.7	2	4-Φ16
3/4"	20	117	100	98.6	69.9	42.9	8.9	2	4-Φ16	20	152	115	117.3	82.6	42.9	14.3	2	4-Φ19
1"	25	127	110	108	79.4	50.8	9.6	2	4-Φ16	25	165	125	123.9	88.9	50.8	15.9	2	4-Φ19
1-1/4"	32	140	115	117.3	88.9	63.5	11.2	2	4-Φ16	32	178	135	133.3	98.4	63.5	17.5	2	4-Φ19

1-1/2"	40	165	125	127	98.4	73	12.7	2	4-Φ16	40	190	155	155.4	114.3	73	19.1	2	4-Φ22
2"	50	178	150	152.4	120.7	92.1	14.3	2	4-Φ19	50	216	165	165.1	127	92.1	20.7	2	8-Φ19
2-1/2"	65	190	180	177.8	139.7	104.8	15.9	2	4-Φ19	65	241	190	190.5	149.2	104.8	23.9	2	8-Φ22
3"	80	203	190	190.5	152.4	127	17.5	2	4-Φ19	80	283	210	209.5	168.3	127	27	2	8-Φ22

4"	100	229	230	228.6	190.5	157.2	22.3	2	4-Φ19	100	305	255	254	200	157.2	30.2	2	8-Φ22
5"	125	356	255	254	215.9	185.7	22.3	2	8-Φ22	125	381	280	279.4	235	185.7	33.4	2	8-Φ22
6"	150	394	280	279.4	241.3	215.9	23.9	2	8-Φ22	150	403	320	317.5	269.9	215.9	35	2	12-Φ22
8"	200	457	345	342.9	298.5	269.9	27	2	8-Φ22	200	502	380	381	330.2	269.9	39.7	2	12-Φ25

10"	250	533	405	406.4	362	323.8	28.6	2	12-Φ25	250	568	445	444.5	387.4	323.8	46.1	2	16-Φ29
12"	300	610	485	482.6	431.8	381	30.2	2	12-Φ25	/	/	/	/	/	/	/	/	/

The dimensions above are for reference only.

Forged Steel Flanged Ball Valve

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Three Pieces Manual Welded Ball Valve

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External Thread Ball Valve with Connecting Pipe

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3-Piece Extended-Weld Ball Valve

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Three-Piece High Platform Welded Ball Valve

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Check Valve

Check valve—Check valves can prevent fluid backflow automatically. It is also known as non-return valve. Usually, fluid pressure opens the valve disc. Fluid flows from the inlet side to the outlet side. When the inlet pressure is lower than the outlet pressure, the valve disc closes the passage automatically by fluid pressure and its own weight. It stops the reverse flow of fluid. You need to notice the installation direction.( Arrow marks are printed on the valve body).

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Flanged Swing Check Valve

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American Standard Flanged Swing Check Valve

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Design Features:
Flanged ends:
ASME B16.5, ANSI B16.5
Test & inspection:
API598

Main parts and materials

ITEM

PART

MAIN MATERIAL

Body

CF8 CF3 CF8M CF3M WCB

Bonnet

CF8 CF3 CF8M CF3M WCB

Disc

CF8 CF3 CF8M CF3M WCB

Gasket

PTFE Spiral Wound Gasket

Bolt

B8 B7

Nut

A194-8 2H

Main dimensions

SIZE	Class 150LB								Class 300LB
	L	D		D1	D2	b	f	n-Φd	L	D		D1	D2	b	f	n-Φd
1/2"	108	90	88.9	60.3	34.9	8	2	4-Φ16	152	95	95.3	66.7	34.9	12.7	2	4-Φ16
3/4"	117	100	98.6	69.9	42.9	8.9	2	4-Φ16	178	115	117.3	82.6	42.9	14.3	2	4-Φ19
1"	127	110	108	79.4	50.8	9.6	2	4-Φ16	216	125	123.9	88.9	50.8	15.9	2	4-Φ19
1-1/4"	140	115	117.3	88.9	63.5	11.2	2	4-Φ16	229	135	133.3	98.4	63.5	17.5	2	4-Φ19
1-1/2"	165	125	127	98.4	73	12.7	2	4-Φ16	241	155	155.4	114.3	73	19.1	2	4-Φ22
2"	203	150	152.4	120.7	92.1	14.3	2	4-Φ19	267	165	165.1	127	92.1	20.7	2	8-Φ19
2-1/2"	216	180	177.8	139.7	104.8	15.9	2	4-Φ19	292	190	190.5	149.2	104.8	23.9	2	8-Φ22
3"	241	190	190.5	152.4	127	17.5	2	4-Φ19	318	210	209.5	168.3	127	27	2	8-Φ22
4"	292	230	228.6	190.5	157.2	22.3	2	8-Φ19	356	255	254	200	157.2	30.2	2	8-Φ22
5"	330	255	254	215.9	185.7	22.3	2	8-Φ22	400	280	279.4	235	185.7	33.4	2	8-Φ22
6"	356	280	279.4	241.3	215.9	23.9	2	8-Φ22	444	320	317.5	269.9	215.9	35	2	12-Φ22
8"	495	345	342.9	298.5	269.9	27	2	8-Φ22	533	380	381	330.2	269.9	39.7	2	12-Φ25

10"	622	405	406.4	362	323.8	28.6	2	12-Φ25	622	445	444.5	387.4	323.8	46.1	2	16-Φ29
12"	698	485	482.6	431.8	381	30.2	2	12-Φ25	711	520	520.7	450.8	381	49.3	2	16-Φ32
14"	787	535	533.4	476.3	412.8	33.4	2	12-Φ29	838	585	584.2	514.4	412.8	52.4	2	20-Φ32

16"	864	595	596.9	539.8	469.9	35	2	16-Φ29	864	650	647.7	571.5	469.9	55.6	2	20-Φ35
18"	978	635	635	577.9	533.4	38.1	2	16-Φ32	978	710	711	628.6	533.4	58.8	2	24-Φ35
20"	978	700	698.5	635	584.2	41.3	2	20-Φ32	1016	775	774.7	685.8	584.2	62	2	24-Φ35

24"	1295	815	812.8	749.3	692.2	46.1	2	20-Φ35	1346	915	914.4	812.8	692.2	68.3	2	24-Φ41

The dimensions above are for reference only.

Flanged Lift Check Valve

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Flanged Vertical Check Valve

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H71 Wafer Check Valve

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H74 Wafer Single-Disc Swing Check Valve

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H76 Wafer Double-Disc Swing Check Valve

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HC41X Stainless Steel Flanged Silent Lift Check Valve

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About Us

Zhongchi Valve Group Co., Ltd. is a professional valve manufacturer with an annual production capacity of one million valves. We specialize in the design, development, manufacturing, and supply of industrial valves and pipeline solutions.
Our product range includes ball valves, gate valves, globe valves, check valves, butterfly valves, and customized valve products, mainly manufactured from stainless steel, carbon steel, and duplex stainless steel.
The company is certified to ISO 9001 and holds the relevant TS Special Equipment Certification. Our products comply with applicable standards and certification requirements, including API 607, CE, and EAC.

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FACTORY & FACILITIES

Valve Manufacturing from Production to Delivery

Certification

Occupational Health and Safety Management System Certification
Environmental Management System Certification
Fire Resistance Test Certificate
CE Module HSIGN
EAC certification

1. How do you ensure product quality?

We conduct inspections at every stage of production. All finished valves undergo 100% inspection in accordance with customer requirements and applicable international standards. Our testing equipment includes spectrometers, hardness testers, thickness gauges, flaw detectors, and high- and low-pressure valve test benches.
2. What is your annual production capacity?

Our annual production capacity is approximately one million valves.
3. Can you manufacture customized valves?

Yes. We can develop and manufacture customized valves based on customer drawings, samples, specifications, and application requirements.
4. What industries are your valves used in?

Our valves are widely used in oil and gas, chemical processing, power generation, pharmaceuticals, metallurgy, textiles, food processing, refrigeration, water supply, construction, and other industrial applications.
5. How soon will I receive a reply after submitting an inquiry?

We usually respond within 24 business hours after receiving your inquiry.

No.	Components	Main materials
1	Valve body	WCB CF8 CF8M CF3M
2	Valve seat	PTFE RPTFE
3	Ball	304 316 316L
4	Valve bonnet	WCB CF8 CF8M CF3M
5	Valve bonnet	304
6	Nut	A2-70 304
7	Bolt	A2-70 304
8	Valve stem	304 316 316L
9	Thrust washer	PTFE RPTFE
10	Packing	PTFE RPTFE
11	Gland	304
12	Handle	201 304
13	Spring washer	304
14	Nut	A2-70 304
15	Locking device	201 304
16	Handle sleeve	Plastic

Nominal diameter	Length	Connection dimensions (standard values) Flange standard: Ministry of Chemical Industry 20592
Nominal diameter	Length	1.0MPa			1.6MPa			2.5MPa
mm	L	D	D1	n-d	D	D1	n-d	D	D1	n-d
40	97	150	110	4-18	150	110	4-18	150	110	4-18
50	100	165	125	4-18	165	125	4-18	165	125	4-18
65	121	185	145	8-18	185	145	8-18	185	145	8-18
80	146	200	160	8-18	200	160	8-18	200	160	8-18
100	161	220	180	8-18	220	180	8-18	235	190	8-22
125	181	250	240	8-18	250	240	8-18	270	220	8-26
150	202	285	240	8-22	285	240	8-22	300	250	8-26
200	233	340	295	12-22	340	295	12-22	360	310	12-22
250	252	395	350	12-22	405	355	12-26	425	370	12-30
300	305	445	400	12-22	460	410	12-26	485	430	16-30
350	351	505	460	16-22	520	470	16-26	555	490	16-33
400	407	565	515	16-26	580	525	16-30	620	550	16-36
450	433	615	565	20-26	640	585	20-30	670	600	20-36
500	450	670	620	20-26	715	650	20-33	730	660	20-36

SIZE		Φd	L	H	W
1/4"	DN6	10.5	55	50	95

3/8"	DN10	12	55	50	95
1/2"	DN15	15	62	59	108
3/4"	DN20	20	70	62	115
1"	DN25	25	82	70	125
1-1/4"	DN32	32	95	83	145
1-1/2"	DN40	38	105	90	170
2"	DN50	49	120	100	175
2-1/2"	DN65	65	142	130	220
3"	DN80	78	167	140	240
4"	DN100	98	198	175	315

SIZE		Φd	L	C	ISO5211

1/2"	DN15	15	62	9	F03/F04
3/4"	DN20	20	71	9	F03/F04
1"	DN25	25	84	11	F04/F05
1-1/4"	DN32	32	97	11	F04/F05
1-1/2"	DN40	38	105	14	F05/F07
2"	DN50	49	120	14	F05/F07
2-1/2"	DN65	65	144	17	F07/F10
3"	DN80	78	170	17	F07/F10
4"	DN100	98	204	17	F07/F10

SIZE		d	D	D1	D2	L	W	Z-Φd

1/2"	DN15	10	95	65	45	90	110	4-Φ14

3/4"	DN20	13	105	75	55	105	110	4-Φ14

1"	DN25	17	115	85	65	110	110	4-Φ14

1-1/4"	DN32	22	135	100	78	125	150	4-Φ18

1-1/2"	DN40	25	145	110	85	136	150	4-Φ18
2"	DN50	32	160	125	100	155	180	4-Φ18

2-1/2"	DN65	40	180	145	120	170	180	4-Φ18

3"	DN80	50	195	160	135	190	230	8-Φ18

4"	DN100	65	215	180	155	210	230	8-Φ18

SIZE		Φd	L1	L2	W	H	ΦD	M
1/4"	DN6	5	66	120	93	55	14	20x1.5

3/8"	DN10	8	66	120	93	58	17	24x1.5

1/2"	DN15	10	85	150	105	60	22	30x2
3/4"	DN20	13	90	155	108	67	27	36x2

1"	DN25	17	100	170	108	70	32	42x2

1-1/4"	DN32	22	120	195	152	82	40	52x2

1-1/2"	DN40	25	135	215	162	87	48	60x3

2"	DN50	32	140	240	162	100	60	72x3

Dimensions		Φd	L	H	W
1/4"	DN6	10.5		52	95
3/8"	DN10	12		52	95
1/2"	DN15	15	244	55	100
3/4"	DN20	20	250	63	115
1"	DN25	25	257	75	125
1-1/4"	DN32	32	265	81	145
1-1/2"	DN40	38	273	95	160
2"	DN50	49	288	110	175
2-1/2"	DN65	65	307	131	220
3"	DN80	78	330	140	240
4"	DN100	98		170	315

DN	L		D	D1	D2	b-f	n-Φd
15	130		95	65	45	16-2	4-Φ14
20	150		105	75	58	18-2	4-Φ14
25	160		115	85	68	18-2	4-Φ14
32	180		140	100	78	18-2	4-Φ18
40	200		150	110	88	18-3	4-Φ18
50	230		165	125	102	18-3	4-Φ18
65	290		185	145	122	18-3	8-Φ18
80	310		200	160	138	20-3	8-Φ18
100	350		220	180	158	20-3	8-Φ18
125	400		250	210	188	22-3	8-Φ18
150	480		285	240	212	22-3	8-Φ22
200	550	600	340	295	268	24-3	12-Φ22
250	650	730	405	355	320	26-3	12-Φ26
300	750	850	460	410	378	28-4	12-Φ26
350	850	980	520	470	438	30-4	16-Φ26
400	950	1100	580	525	490	32-4	16-Φ30
450	1050		640	585	550	40-4	20-Φ30
500	1150		705	650	610	44-4	20-Φ33
600	1350		840	770	725	54-5	20-Φ36

DN	L	D	D1	D3	D2

15	28	49	15	44	25

20	28	49	19	52	30

25	28	67	24	60	36

32	31	75	31	72	43

40	35	86	39	74	52

50	39	100	48	98	62

65	54	115	63	117	75
80	58	135	78	128	90

100	68	154	98	/	112
125	85	185	123	/	132

150	100	212	148	/	158

200	110	270	198	/	208

250	122	327	248	/	258

DN	L		D1	D
	PN1.0/1.6Mpa	PN2.5/4.0Mpa		1.0Mpa	1.6Mpa	2.5Mpa	4.0Mpa
50	15	19	25	104	104	109	109

65	15	19	38	125	125	129	129
80	16	19	46	140	140	144	144
100	16	19	71.5	160	160	170	170

125	17	19	95	185	185	196	196
150	19	29	114	220	220	226	226
200	26	29	140	270	270	286	293

250	29	38	188	330	330	343	355
300	38	45	216	380	386	403	420
350	38	51	263	440	446	460	477
400	48	55	305	491	495	517	549
450	48	60	356	541	558	567	574
500	58	70	406	596	620	622	626
600	68	78	482	698	732	734	745

700	70	80	562	802	802	831	/
800	75	95	664	910	910	942	/
900	75	95	738	1018	1012	1040	/

1000	90	100	846	1124	1126	1155	/

DN	L	D	D1	D3	D2

15	28	49	15	44	25

20	28	49	19	52	30

25	28	67	24	60	36

32	31	75	31	72	43

40	35	86	39	74	52

50	39	100	48	98	62

65	54	115	63	117	75
80	58	135	78	128	90

100	68	154	98	/	112
125	85	185	123	/	132

150	100	212	148	/	158

200	110	270	198	/	208

250	122	327	248	/	258

Professional Ball Valve & Check Valve Manufacturer

One-Stop Industrial Valve Solution

Threaded Ball Valve

Flanged Ball Valve

Welded Ball Valve

Quick-install Ball Valve

Check Valve

Flanged Swing Check Valve

American Standard Flanged Swing Check Valve

Flanged Lift Check Valve

Flanged Vertical Check Valve

H71 Wafer Check Valve

H74 Wafer Single-Disc Swing Check Valve

H76 Wafer Double-Disc Swing Check Valve

HC41X Stainless Steel Flanged Silent Lift Check Valve

About Us

1. How do you ensure product quality?

2. What is your annual production capacity?

3. Can you manufacture customized valves?

4. What industries are your valves used in?

5. How soon will I receive a reply after submitting an inquiry?

INQUIRY NOW

DN	L	D	D1	D3	D2

15	28	49	15	44	25

20	28	49	19	52	30

25	28	67	24	60	36

32	31	75	31	72	43

40	35	86	39	74	52

50	39	100	48	98	62

65	54	115	63	117	75
80	58	135	78	128	90

100	68	154	98	/	112
125	85	185	123	/	132

150	100	212	148	/	158

200	110	270	198	/	208

250	122	327	248	/	258