News
-
PTFE and PFA Butterfly Valve Material Differences
(Summary description)PTFE EPDM butterfly valve seat Teflon PTFE is also known as polytetrafluoroethylene.Teflon PFA is also known as soluble polytetrafluoroethylene.Many valve purchases are not quite clear which is better corrosion resistance for butterfRead more -
The Influence of Vacuum Pump on Measuring the Relative Pressure Coefficient of Air
(Summary description)Use the sensor to measure the relative pressure coefficient of the air); disconnect the sensor from the vacuum pump, and read the output voltage U0 of the sensor at this time. U. is caused by the drift of the sensor's zero point and sRead more -
Why is it difficult to switch large-caliber valves? What is the solution?
(Summary description)Among the users who use large-diameter globe valves in daily life. Among the users who use large-diameter globe valves in daily life, people often report a problem, that is, large-diameter globe valves are often difficult to close whRead more -
Electric valve safety operation regulations
(Summary description)Read the valve manual carefully to understand the basic structure and principle. 1. Read the valve manual carefully to understand the basic structure and principle 2. Operation steps of electric butterfly valve 2.1 Close the air switRead more -
Precautions for installation and maintenance of safety valves
(Summary description)Precautions for installation and maintenance of safety valves: Precautions for installation and maintenance of safety valves: (1) The newly installed safety valve should be accompanied by a product qualification certificate, and it mRead more -
How to choose a suitable imported valve correctly
(Summary description)Imported valves mainly refer to valves from foreign brands, mainly European, American and Japanese brands. Imported valves mainly refer to valves from foreign brands, mainly European, American and Japanese brands. The product types oRead more -
The centrifugal pump does not flow out of the fault treatment
(Summary description)Centrifugal water pump has become a widely used water pump in agriculture because of its simple structure Centrifugal water pump has become a widely used water pump in agriculture because of its simple structure, convenient use and mRead more -
Adjustment method of multistage centrifugal pump
(Summary description)The working principle of the multi-stage centrifugal pump is the same as that of the ground centrifugal pump. The working principle of the multi-stage centrifugal pump is the same as that of the ground centrifugal pump. When the motoRead more -
How to prevent O-rings from bending and damaging imagination?
(Summary description)O-ring is a kind of vulcanized rubber sealing ring with annular cross-section, and its cross-section structure is O-ring, O-ring is a kind of vulcanized rubber sealing ring with annular cross-section, and its cross-section structureRead more -
The troublesome seal ring design determines its purpose!
(Summary description)The fluoroelastomer is a copolymer of vinyl fluoride and hexafluoropropylene. Depending on its molecular structure and fluorine content, fluoroelastomers have different chemical resistance and low temperature resistance. The fluoroelRead more -
Those factors that affect the effect of fluorine rubber ring
(Summary description)Many machinery will have fluorine rubber seals, so what are the factors that affect the use of fluorine rubber seals? Many machinery will have fluorine rubber seals, so what are the factors that affect the use of fluorine rubber sealRead more