Check valve is an automatic valve, also known as check valve, one-way valve, return valve or isolation valve.

The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). When the inlet pressure is greater than the disc weight and its flow resistance, the valve is opened. On the contrary, the valve will be closed when the medium flows back.

When customers begin to consult our products, they tell us their needs, need high-quality products and follow-up high-quality services, and hope that we can provide factory qualifications and relevant certificates.

We communicate with customers many times to eliminate their concerns. Finally, the customers happily placed the order. After the product is produced, we take photos and send them to customers, so that they can see the appearance of the product at the first time. The customer was very satisfied with our service.