+86 22 66224148   jack@unionvalve.com

Trust in quality. Create win-win situations.

Valve knowledge

Gate Valve Testing Procedure: Shell Test, Seat Test & Inspection
Gate valves control on-off flow in water supply...
Why Is a Check Valve Installed at the Pump Outlet?
When a pump is operating normally, the fluid fl...
F4 vs F5 Gate Valves: Dimensions, Differences & How to Choose
F4 and F5 are two common face-to-face dimension...
Butterfly Valve Actuator Sizing: Torque & Selection Guide
Butterfly valve actuator sizing means selecting...
API 609 vs EN 593 Butterfly Valves: Key Differences and How to Choose
API 609 and EN 593 are both commonly used produ...
Valve Standards Explained: Design, Flange, Face-to-Face & Testing
Valve standards define the requirements for val...
Swing Check Valve vs Dual Plate: Which to Choose?
Swing check valves and dual plate check valves ...
How to Select the Right Valves for Pump Stations
Pumps are the core equipment of a pumping stati...
Special instructions for seller

What are you looking for?