Custom Wafer Dual Disc Check Valve BS5153 Standard CI and DI Manufacturers, Manufacturer

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Custom Wafer Dual Disc Check Valve BS5153 Standard CI and DI Manufacturers, Manufacturer

Type: Wafer type

Series: H71X-10/16

Size: DN40-DN700/2â€-28â€

Pressure rating: PN6/PN10/PN16/PN25

Design standard: BS5153

Service: OEM&ODM

The dual disc spring wafer check valve is a type of valve used to prevent the backflow of medium in pipelines, which automatically opens and closes by relying on the flow of medium itself in the pipeline to generate power.

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Product Description

Technical Specifications
Valve Type:	Wafer check valve	Structure:	Double disc
Standard:	BS5153	Workmanship:	Investment casting
Sealing direction:	Single-directional	Sealing grade:	Zero leakage
Temperature:	-20°C < T < 120°C	Operation:	Self-starting

Characteristics

Adopting a clamp type structure, it can be directly clamped between two pipeline flanges without the need for additional long-distance installation space. Compared with flange connected check valves, it greatly reduces the overall space occupied by the pipeline system, especially suitable for narrow installation conditions.

Key Advantages

1. Low fluid resistance and low energy consumption The valve body flow channel is mostly designed with streamlined design, and the valve disc is lightweight (commonly double disc or single plate structure). The required medium thrust for opening is small, and there is less turbulence loss when the medium passes through. It can effectively reduce the operating energy consumption of upstream power equipment such as pumps and compressors.

2. Sensitive opening and closing, good anti backflow effect Relying on the pressure difference of the medium itself to achieve automatic opening and closing, without external driving devices. When the medium flows forward, the valve disc opens quickly; Once the medium flows back, the valve disc quickly closes under the back pressure, self weight, or spring assistance of the medium.

3. Stable sealing performance Valve seats are often made of elastic materials (such as nitrile rubber, fluororubber) or metal hard sealing structures. Some models adopt a dual seal design, which can adapt to the sealing requirements of different media, achieving good sealing and reducing the risk of leakage.

Packing

Standard export wooden case packaging ensures safe transit and protection against environmental factors.

Application Scenarios

Widely used in pipeline systems in industries such as water supply, sewage treatment, fire protection, petroleum, chemical, power, metallurgy, etc., especially in pipeline systems with limited space, it has good adaptability.

Material

Body		Disc		Stem	Rubber gasket			Spring
Name	Code	Name	Code	Name	Name	Code	Working temp ℃	Name
Cast Iron Ductile Iron Carbon steel Stainless steel	Z Q C P	Plated ductile Iron Aluminum bronze ZG1Cr13Ni9Ti CF8M Stainless steel	1 2 5 7	Stainless steel	EPDM Neoprene NBR	X3 X4 X5	-46~+121 -50~+150 -29~+99 -35~+113	Stainless steel

Dimension

DN		D	D1	D2	L	R	t
mm	inch	D	D1	D2	L	R	t
50	2"	107	65	43.3	43	28.2	19
80	3"	142	94	66.4	64	43.4	28
100	4"	162	117	90.8	64	52.8	27
150	6"	218	170	144.6	76	78.6	31
200	8"	273	224	198.2	89	104.4	33
300	12"	378	310	283.9	114	148.3	43
600	24"	690	624	572.6	178	295.4	73

Frequently Asked Questions

Q1: What are the main benefits of using a wafer check valve?

A: Wafer check valves offer a compact design that saves space, low fluid resistance for energy efficiency, and a lightweight structure that is easy to install between flanges.

Q2: Can this valve be used for high-temperature media?

A: The standard working temperature ranges from -20°C to 120°C, making it suitable for water, steam, and various chemical media within this range.

Q3: How does the double disc structure improve performance?

A: The double disc design allows for faster closing response, which significantly reduces water hammer effects and ensures a better seal under backpressure.

Q4: What materials are available for the valve body?

A: We provide various materials including Cast Iron, Ductile Iron, Carbon Steel, and Stainless Steel (CF8/CF8M) to meet different industrial requirements.

Q5: Is maintenance difficult for these valves?

A: No, the simple design with fewer moving parts makes it highly durable and requires minimal maintenance during its service life.

Q6: Does it provide zero leakage?

A: Yes, with high-quality elastic sealing materials like EPDM or NBR, the valve achieves a zero leakage sealing grade.