The hottest liquefied natural gas axial flow check

2022-08-14
  • Detail

The Ministry of industry and information technology recently issued four industry standards, including LNG axial-flow check valves, technical conditions for valve pneumatic devices, insulation jacket valves, and copper float type automatic exhaust valves, which have been completed by relevant standardization technical organizations, to solicit opinions from all walks of life. The details are as follows: 1. Standard number: jb/t88

recently, the Ministry of industry and information technology released four industry standards, including LNG axial flow check valves, technical conditions for valve pneumatic devices, insulation jacket valves, and copper float type automatic exhaust valves, which have been completed by relevant standardization technical organizations, to solicit opinions from all walks of life

the details are as follows:

1. Standard number: jb/t

Standard Name: technical conditions of valve pneumatic device

main contents of the standard: this standard specifies the terms and definitions, technical requirements, test methods, inspection rules, marks, packaging and storage of valve pneumatic devices. This standard is applicable to the working pressure of 0.4MPa ~ 0.7MPa; Working environment temperature -20 ℃ ~ +60 ℃; The gas source is clean and dry air or nitrogen, or other compressible gas for common development (no corrosive gas, solvent or other liquid); The valve is equipped with a straight stroke pneumatic device for linear motion and an angular stroke pneumatic device for rotary motion. This standard is not applicable to membrane pneumatic devices

substitute standard: jb/t

2. Standard No.: jb/t

Standard Name: insulation jacket valve

main contents of the standard: this standard specifies the terms and definitions, structural types, technical requirements, insulation jacket materials, test and inspection methods, inspection rules, signs and supply requirements of insulation jacket valves. This standard is applicable to insulated jacketed gate valves, globe valves, check valves, ball valves and butterfly valves with nominal pressure of PN16 ~ pn160 (class150 ~ class900) and nominal size of DN15 ~ DN600 (nps1/2 ~ nps24). Other specifications and types of insulation jacket valves can be used by reference

3. Standard No.: jb/t

Standard Name: copper float type automatic exhaust valve

main contents of the standard: this standard specifies the structural type, technical requirements, materials, test and inspection methods, inspection rules, marks, protection, packaging, storage and transportation of copper float type automatic exhaust valve. This standard is applicable to exhaust valves for heating, heat pump, central air conditioning, domestic hot and cold water systems with nominal pressure not greater than PN16, nominal size DN8 ~ DN25, working temperature -20 ℃ ~ 110 ℃, working medium water or glycol solution with concentration ≤ 30%

4. Standard No.: jb/t

use zigzag yield strength to replace the standard name: LNG axial flow driven collaborative innovation demonstration check valve

main contents of the standard: this standard specifies the structural type, technical requirements, inspection and test methods, inspection rules, marks, protection, packaging, storage and transportation of LNG axial flow check valves. This standard is applicable to flanges with nominal pressure of PN16 ~ PN250 (class150 ~ class1500 to 2020), nominal size of DN50 ~ DN600 (NPS2 ~ nps24), working medium of liquefied natural gas and axial flow check valves connected by welding. Other low temperature axial flow check valves with temperature higher than -162 ℃ can also be used by reference

Copyright © 2011 JIN SHI