Vag Butterfly Valve - Manufacturers, Factory, Suppliers from China

Vag Butterfly Valve, , , ,. The product will supply to all over the world, such as Europe, America, Australia,, ,, .

Valve selection principles and valve selection steps

1. Valve selection principle: The selected valve should meet the following basic principles. (1) Safety and reliability of petrochemical, power station, metallurgy and other industries require cont...
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...
What should be do during valve installation - part two

Today we continue to talk about valve installation precautions: Taboo 7 When pipe welding, the wrong mouth after the pipe is not on a center line, no gap in the pair, the thick wall pipe does not s...
Working principle for the dual plate check valve

Dual plate check valve H77X butterfly plate is two semicircles, and the spring forced reset, sealing surface can be body stacking welding wear-resistant material or lining rubber, a wide range of u...
Installation of common valves---TWS Valve

A.Gate valve installation Gate valve, also known as gate valve, is a valve that uses a gate to control the opening and closing, and adjusts the pipeline flow and opens and closes the pipeline by ch...
Butterfly valves: Difference between Wafer and Lug

Wafer type + Lighter + Cheaper + Easy installation - Pipe flanges required - More difficult to centre - Not suitable as end valve In the case of a Wafer-style butterfly valve, the body is annular ...