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.
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
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.
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.
Strictly follow quality control procedures and testing standards
Execute the product molding, the seam is flat, the structure is tight
Minato runs smoothly.
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.