Air Vent Valve For Hvac System - China Factory, Suppliers, Manufacturers

Air Vent Valve For Hvac System, , , ,. The product will supply to all over the world, such as Europe, America, Australia,, ,, .

Four taboos for valve installation

1. Hydrstatic test at negative temperature during construction in winter. Consequences: because the tube freezes quickly during the hydraulic test, the tube is frozen. Measures: try to carry out hy...
How butterfly valves work?

Butterfly valve is a kind of valve that uses a disc opening and closing part to reciprocate about 90° to open, close or adjust the flow rate of the medium. Butterfly valve not only has simple struc...
Valve castings are prone to produce defects

1. The stomata This is a small cavity formed by the gas that the metal solidification process does not escape inside the metal. Its inner wall is smooth and contains gas, which has a high reflectiv...
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 is a butterfly valve?

The butterfly valve was invented in the United States in the 1930s. It was introduced to Japan in the 1950s and was not widely used in Japan until the 1960s. It was not popularized in my country un...
The 16th International Exhibition PCVExpo Successfully End,TWS Valve Back.

TWS Valve attended the 16th International Exhibition PCVExpo On 24 - 26 October 2017,Now we have back. During the Exhibition, We met many friends and clients here,we have a good communication fo...