Lug Type Butterfly Valve wirh Worm Gear - Factory, Suppliers, Manufacturers from China

Lug Type Butterfly Valve wirh Worm Gear, , , ,. The product will supply to all over the world, such as Europe, America, Australia,, ,, .

Overview of Valve Casting

1. What is casting The liquid metal is poured into a mold cavity with a shape suitable for the part, and after it solidifies, a part product with a certain shape, size and surface quality is obtain...
Certificates required for valve industry.

1. ISO 9001 quality system certification 2. ISO 14001 Environmental Management System Certification 3.OHSAS18000 Occupational Health and Safety Management System Certification 4.EU CE certification...
Valve selection principles and valve selection steps

Valve selection principle (1)Safety and reliability. Petrochemical, power station, metallurgy and other industries production requirements for continuous, stable, long-cycle operation. Therefore, t...
Why do gate valves require upper sealing devices?

When the valve is fully open, a sealing device that prevents the medium from leaking to the stuffing box is called the upper sealing device. When the gate valve, globe valve and throttle valve are ...