Wholesale Dual Plate Wafer Lug Check Valve 4 Inch Manufacturers, Manufacturer

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Wholesale Dual Plate Wafer Lug Check Valve 4 Inch 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

As a specialized anti-backflow component for piping systems, the dual disc spring-loaded wafer check valve operates without external actuation; it opens and closes automatically driven by the kinetic energy of the internal medium flow.

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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

This valve adopts a wafer-type mounting design, which allows it to be directly sandwiched between a pair of pipeline flanges without requiring additional extended installation space. In contrast to flange-connected check valves, this configuration substantially reduces the spatial footprint of the entire piping system, rendering it particularly suitable for narrow or constrained installation environments.

Core Advantages

Easy Installation Adopting a clip on installation method, i.e. chip design, it can be easily installed between two pipeline flanges, saving space, reducing the overall weight of the system, and facilitating installation in narrow spaces.

Good Fluid Performance The valve disc adopts a lightweight design and is equipped with low friction bearings, with low opening pressure, low fluid resistance, and smooth flow channels, which can reduce the energy consumption of power equipment such as pumps and compressors.

Excellent Sealing Performance The double valve disc is precision machined, with a smooth sealing surface, and forms a double sealing barrier with an elastic valve seat. It can quickly close when the medium flows back, and has good sealing performance.

Packing and Delivery

Standard export wooden case packaging ensures the safety and integrity of the valves during long-distance transportation.

Application Scenarios

This valve finds extensive use in pipeline networks for industries ranging from water supply, sewage disposal and fire safety systems to petroleum refining, chemical manufacturing, power engineering and metallurgical operations. It demonstrates particularly strong compatibility with piping layouts where installation space is restricted.

Material Composition

Component	Material Options	Code
Body	Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel	Z, Q, C, P
Disc	Plated Ductile Iron, Aluminum Bronze, Stainless Steel (ZG1Cr13Ni9Ti, CF8M)	1, 2, 5, 7
Stem	Stainless Steel	-
Gasket	EPDM, Neoprene, NBR	X3, X4, X5, X7
Spring	Stainless Steel	-

Dimensions

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

Frequently Asked Questions

What are the main benefits of the wafer-type design?

The wafer-type design is extremely space-efficient. It is sandwiched between pipeline flanges, significantly reducing the installation footprint compared to traditional flanged valves, making it ideal for tight spaces.

Does this valve provide zero leakage sealing?

Yes, our wafer check valve features precision-machined double discs and an elastic valve seat that create a double sealing barrier to ensure zero leakage performance.

What is the standard temperature range for operation?

The standard operating temperature range for this valve is between -20°C and 120°C, suitable for a wide variety of industrial fluids.

Can this valve be used in fire safety systems?

Absolutely. It is extensively used in water supply, sewage disposal, fire safety systems, and chemical manufacturing due to its reliable self-starting operation and backflow prevention.

Why is the double-disc design better?

The double-disc design allows for a lighter construction and low opening pressure. It responds faster to flow changes, reducing fluid resistance and energy consumption for the overall system.

What materials are available for the valve body?

We offer various material options including Cast Iron, Ductile Iron, Carbon Steel, and Stainless Steel to meet different medium and environmental requirements.