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21

2018-04

【Technical article】 How to operate and maintain the valve during operation

The principle of maintenance during the operation of the valve is as follows: 1 Keep the outside of the valve and the active part clean and protect the integrity of the valve paint. The surface of the valve, trapezoidal ...
24

2018-03

【Technical article】 Construction taboos and measures for water supply and drainage valves and pipes

Taboo 1: the main materials, equipment and products used in construction, and lack of technical quality identification documents or product qualification certificates conforming to the current standards issued by the state or department...
07

2018-03

【Technical article】 What are the common heat treatment processes?

Common heat treatment processes include normalizing, annealing, solid solution, aging, quenching, tempering, annealing, carburizing, nitriding, quenching and tempering, spheroidization, brazing and so on...
05

2018-01

【Technical article】 What are the main points of the installation of the safety valve and the design of the piping layout?

(1) the safety valve on the equipment or pipe should generally be erected. But for setting up safety valve at liquid pipe, heat exchanger or container, when the valve is closed, the place where ...
23

2017-12

【Technical article】 Characteristics and application fields of gate valves

Stainless steel valve, Z15W valve, gate valve, screw thread valve: the valve can only be fully open and fully closed, can not be adjusted and the throttle.
24

2017-11

【Technical article】 Application of high performance three eccentric two way hard sealing butterfly valve

At present, the butterfly valve, as a component to realize the on-off and flow control of the pipeline system, has been widely used in many fields, such as petroleum, chemical industry, metallurgy, hydropower and so ...
02

2017-11

【Technical article】 How to determine whether the valve is internal leakage or external leakage?

In the daily use of the valve, often encounter a variety of faults, valve leakage is one of the most common faults, and valve leakage generally have two cases of internal leakage and external leakage! So...

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