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Introduction of low temperature valve test and inspection2016-10-18

Cryogenic valve is the medium temperature requirements, the temperature range of -40 ℃ ~ -196 ℃. There are many types of cryogenic valves, including low temperature valve, low temperature valve, low temperature valve, low temperature valve, low t…

Cryogenic valve standards and product structure introduced2016-10-18

Cryogenic valves represent a range of valves, such as cryogenic throttle valves, cryostat valves, etc., for a wide range of applications, mainly for ethylene, liquefied natural gas installations, natural gas LPG LNG storage tank, receiving base and s…

Cryogenic valve why the case of leakage?2016-10-18

Cryogenic valve is a valve, but it also has many categories, such as low temperature valve, low temperature butterfly valve, low temperature needle valve, low temperature throttle and so on. Cryogenic valves are mainly used for ethylene, LNG plant, n…

Cryogenic valve test and inspection2016-10-18

Cryogenic valve test and inspection:Cryogenic valve for the main components for low-temperature processing and sampling for each low-temperature impact test to ensure that the valve in the low-temperature conditions do not brittle crack, stand the im…

Cryogenic Valve Standard and Product Structure2016-10-18

Cryogenic valve standards and product structure:1. Design: API6D, JB / T77492. Valve routine inspection and testing: according to API598 standard.3. Valve low temperature inspection and test: according to JB / T7749.4. Drive: manual, bevel gear drive…

Temperature-type steam trap excellent system settings2016-10-18

Temperature-type trap performance and characteristics:1. New SCCV closed system design, reliable off, long life.2. Exhaust temperature can be adjusted, the effective use of high-temperature condensation of sensible heat, energy-saving effect is remar…

How does the automatic exhaust valve work with the system?2016-10-18

Automatic Exhaust Valve: A valve installed at the highest point of the system to release the cavitation generated in the heating system and water supply piping. Automatic vent valves are widely used in water separators, radiators, floor heating, air …

Pipe pinch valve has the most ideal component2016-10-18

Pipe pinch valve in the country is also known as pinch valve, hose valve:(1) How it works: When the hand wheel turn clockwise, so that the size of the stem while driving up and down the stubble, compression sets, to close, and vice versa is open. In …

Titanium valve has good stability and self-passivation ability2016-10-18

?Titanium valve is mainly the use of titanium materials in strong corrosive environment, oxidation film has good stability and self-passivation ability, this feature to resist a variety of harsh operating conditions, strong corrosion.Titanium valve…

ow to understand the direct effect of pressure2016-10-18

The role of pressure relief valve:1, the role of pressure relief valve: the simplest valve, direct acting pressure reducing valve, with a flat diaphragm or bellows. Because it is a self-contained structure, there is no need to install an external sen…

Watch the development trend of valve mold changes2016-10-18

Although China is a big country valve, but far from the valve power, the level of China's valve technology, casting quality, technical and economic indicators than the advanced countries there is a big gap. Valve technology to sand valve-base…

Hammer-type safety valve can be adjusted to achieve the pressure from the seat2016-10-18

Hammer-type safety valve, also known as leveraged safety valve. It consists of the valve body, seat, spool, lever, heavy hammer and other components.Heavy hammer type safety valve works: heavy hammer scale weight through the lever 5 and the fulcrum o…

Breathing valve is to solve the tank positive pressure, negative pressure gas2016-10-18

Breathing valve installed in the top of the tank, is to solve the tank positive and negative pressure of the gas, so that the liquid inside and out of the tank is not blocked, when the external liquid into the tank when a large number of gas outbound…

Balancing valve to ensure that the balance of the use of various regions2016-10-18

1, balance valve Boiler (or chiller) water flow balance In the boiler room (or chiller room), the general installation of several parallel units, due to the different resistance between the units, causing the flow through the unit inconsistencies, th…

Special form of diaphragm valve for the applicability of the environment2016-10-18

The diaphragm valve is a special type of cut-off valve that appeared in the 1920s. It is a piece of open and close pieces made of soft material diaphragm, the valve body cavity and the valve cover cavity and drive components separated, so called diap…

Plastic pipe and valve connection will wipe out what spark?2016-10-18

Plastic pipe and valve connections are as follows:(1) PVC-U rigid polyvinyl chloride plastic pipe:1) If the valve is a female thread, you should use the external thread transition joint, the transition joint has one end of the external thread, the ot…

The advantage of connecting the valve sleeve2016-10-18

Card sets Connection valve: with the pipe connected with the card sets to prevent leakage, made of metal. Valve card connector, developed in recent years in China, its connection and sealing principle is that when tightening the nut, the card set by …

Recalling the past development of ceramic butterfly valve2016-10-18

Although the metal valve through the structure and material improvements, but limited by the properties of metal materials, can not meet the increasingly high wear and tear, strong corrosion resistance of the metal valve, the use of metal valves, met…

With the specification in order to design a good ceramic valve2016-10-18

Ceramic valves of the standard specifications:Ceramic valve the only national standard: JB / T10529-2005Design and manufacturing standards: API6D-2008, API608-2002Structural length standards: GB / T 12221-2005, ANSI B16.10Connecting flange standard: …

Breakdown ceramic valve product advantages2016-10-18

Ceramic valve has a huge social and economic benefits, the advantages are:1. The use of new high-tech ceramic structural materials, valve sealing parts and consumable parts to improve the wear resistance of valve products, corrosion and sealing, grea…