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07

2019-12

【Technical article】 The corresponding method is adopted to control the deformation in a small range as far as possible

Heat treatment technology is an important means to obtain good properties of various metal materials.In many practical applications, reasonable selection of materials and various forming processes can not meet the mechanical properties...
23

2019-11

【Technical article】 Certification and testing of valves and actuators

ISO 9001 quality system certification, ISO 14001 environmental management system certification, OHSAS 18000 occupational health and safety management system certification, eu CE certification, pressure vessel PED directive, API certification...
31

2019-10

【Technical article】 Technical performance of drainage engineering valves

The strength of the valve is the ability of the valve to withstand medium pressure.Valves are mechanical products under internal pressure and must have sufficient strength and stiffness to ensure long-term use without breaking or deformation.
24

2019-10

【Technical article】 Analysis and research on performance test of backflow preventer

The function, structure characteristic and performance test of backflow preventer are introduced.
16

2019-10

【Technical article】 Description of the characteristics of all kinds of universal valves and special valves

The characteristics and applications of all kinds of universal valves and special valves are simply described
28

2019-09

【Technical article】 Causes and solutions of valve sealing surface leakage

Valve is the fluid system used most of a control component, can be used for switching or control flow direction and regulation, and from the simplest cut off function, the valve seal in the machine...
21

2019-09

【Technical article】 Causes of valve leakage

The most common reason is that the operation manager does not maintain the valve in consideration of relatively expensive maintenance costs, or the lack of scientific valve management and ...
10

2019-08

【Technical article】 Pneumatic valve accessories collocation function and principle

Pneumatic valve is a kind of compressed air to drive the operation of the valve actuator, its opening and closing speed is relatively fast, often used for fast two cut off use, can also be used to regulate the flow of use...
20

2019-07

【Technical article】 How do check valves handle pressure testing

Check valve is to rely on medium oneself activity and open actively, close valve disc, used to avoid medium backflow valve, also known as backflow valve, one-way valve, countercurrent valve, and ...
22

2019-06

【Technical article】 Comparison table of the relationship between valve size and medium velocity

It is well known that the flow rate and velocity of the valve mainly depends on the size of the valve, but also with the valve structure type of the resistance to the medium...

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