Check Valve
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Check Valve

Henan Shuangxin Fire Environmental Protection Equipment Manufacturing Co., Ltd is a professional supplier and manufacturer of Check Valve in China. We are equipped with advanced production machines and skillful workers. Our aiming is to produce good products for our customers. We look forWard to your cooperation to have more market shares.

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Product Description

You are welcomed to come to our factory to buy the latest selling, low price, and high-quality Check Valve. We look forward to cooperating with you. We hope to establish friendly cooperative relationship with your company with high quality products, reasonable price, considerate service and create a better future hand in hand.


1.Product Introduction

The return valve refers to a valve whose opening and closing member is a circular disc and acts by its own weight and medium pressure to block the backflow of the medium. It is an automatic valve, also known as a check valve, a one-way valve, a return valve or an isolation valve.


2.Product Parameter (Specification)

Action form: horizontal

Applicable medium: water

Pressure environment: normal pressure

Drive mode: hydraulic control

Flow direction: one-way

Temperature environment: normal temperature

Structural form: lift

3.Product Feature And Application

According to the structure, it can be divided into three types: lift check valve, swing check valve and butterfly check valve:

1. The lift check valve is divided into two types: vertical and horizontal.

2. The swing check valve is divided into three types: single-lobe type, double-lobe type and multi-lobe type.

3. The butterfly check valve is a straight-through type.

The above types of check valves can be divided into four types: threaded connection, flange connection, welded connection and wafer connection.


Horizontal check valve is suitable for submersible, drainage, sewage pump, especially suitable for sewage and sludge system.

Swing rubber check valve is suitable for domestic water pipe network; but not suitable for sewage with a lot of sediment

Swing single flap check valve is suitable for water supply system, petroleum, chemical industry, metallurgy and other industrial sectors, and is most suitable for places with limited installation space.


4.Product Details


sealing shrapnel

Make sure the air leakage is up to standard

Humanized design, considerate mute setting, improve work effect Multi-leaf structure, air leakage low, good air tightness。


One-piece molding, hot-dip galvanized material

Carefully selected raw materials, using hot zinc inlay process,

Good corrosion resistance and long life.


Weld flat

Strictly follow quality control procedures and testing standards

Execute the product molding, the seam is flat, the structure is tight

Minato runs smoothly.


Flexible drive

Easy to install

Exclusive products can be customized according to customer requirements.

meet customer needs


Q:How does your factory do regarding quality control? 
A:"Quality is priority. We always attach great importance to quality controlling from the very beginning to the very end. Our factory has gained ISO9001:2008 authentication.


Q: Do you provide samples? Is it free or extra?

A: Yes, we could offer you the sample machine. But it's not free. You need to pay for the sample and the cost of freight.


Q: What is the warranty time of your products?
A: The warranty time is 12months from the date of the commissioning. All quick-wear spare parts will be provided for free within the warranty period. After the warranty, we also can ensure that you can buy any necessary spare parts with favorable price within 5 years.



Hot Tags: Check Valve, Manufacturers, Factory, China, Made in China, Cheap, Durable, Quality, Easy-maintainable, 1 Years Warranty

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