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Power station valve research and manufacturing

Medium and low pressure cast steel globe valve

Middle and low pressure cast steel globe valve is a widely used valve to open and close various pipeline media, with short opening and closing time, good sealing characteristics

Application
Middle and low pressure cast steel globe valve is a widely used valve to open and close various pipeline media, with short opening and closing time, good sealing characteristics. Choose different materials, can be respectively suitable for water, steam, oil, nitric acid, acetic acid and other media.
Characteristic
• The shell is formed by casting process;
• The opening and closing part of the globe valve is a plug shaped disc, the sealing surface is planar, conical or spherical, the opening and closing part is driven by the stem, and the valve moves up and down along the axis of the seat;
• Straight down of valve stem, easy to open and close, slow down instantaneous friction, powerful protection of seals, prolong service life;
• Can use welding end and various pipe flange standards and flange sealing face types to meet various engineering needs and user requirements;
• Body materials, gaskets and fillers can be reasonably selected according to actual conditions or user requirements, can be applied to a variety of pressure, temperature and medium conditions;
• There are multiple operation modes for users to choose, mainly manual, bevel gear drive, pneumatic, electric, etc.
Design Guides
Design and manufacture Structure length Flange connection size Inspection and test Pressure and temperature reference
GB/T 12224 GB/T 12221 GB/T9124.1、GB/T9124.2 JB/T79、HG/20592 GB/T 26480 GB/T 12224
NB/T 47044 GB/T 12221 NB/T 47044 NB/T 47044
ASME B16.34 ASME B16.10 ASME B16.5 HG/20615 API 598 ASME B16.34
 
Product Range
Nominal pressure PN16~PN100(Class150—Class600)
Nominal size DN50~DN250(NPS 2~NPS10)
Body matenal WCB、WC6、WC9、ZG20CrMoV、CF8、CF3、CF8M、CF3M
Test pressure(MPa) Strength test (Water pressure) 1.5×P(38℃ pressure rating)
Sealing test (Water pressure) 1.1×P(38℃ pressure rating)
Applicable Temperature -29℃~575℃
Applicable medium Steam, water, oil, etc

Note:
1、The valve beyond the above specifications can be customized according to user requirements;
2、The applicable temperature range of each valve shall be subject to the actual pressure bearing material of the valve.