K Series Air Activated Differential Check Valve

K Series Air Activated Differential Check Valves are installed at the outlet of the meter, which is designed to stop the flow of liquid whenever air is present to ensure accurate measurement.

Technical Specification

Company Profile

Shanghai Cowell Machinery Co., Ltd. (Cowell) is a family group company. We are a professional manufacturer of Fueling equipment since 1980’s.

Registered in Shanghai, and managed by a professional team, Cowell delivers quality, efficiency, and expertise to our clients worldwide, being dedicated to providing the below full line products:

1) Fuel and LPG dispenser & its components – fuel dispensers, flow meters, fuel pumps, nozzles, separators, manometers, solenoid valves, differential valves, hoses and other related products

2) Mechanical PD Flow Meters & Pumps - positive displacement flow meters, vane pumps, Centrifugal Pumps, loading and unloading meters & pumps, Electric Transfer Pump Units, etc.

3) Additional, tank truck parts & digital flow meters.

Cowell factory has Numberical Control Machine Center, Numberical Lathe Machine, Meter Testing Tables, Pump Testing Tables etc. advanced inspecting & testing machines, 3D measurement system.We have more than 200 employee and 10 senior technical engineers. Our products are durable, reliable and economical and have obtained ISO9001 certificate, certain products have gained the ATEX CE certificate & UL certificate. The products are exported to USA, Europe, Middle East, South East Asia and Africa etc.

“Cooperation for mutual benefit based on sincerity and credit” is our philosophy. It is our everlasting pursuit to provide our customers with high quality products at competitive prices and efficient customer services.

Our business lincense no.:310107000515619

Export license certificate no.:310066606369X