1-General Standard Name
HYG-4500(G) Socket Weld Stainless Steel High Temperature & High Pressure Needle Globe Valve (Instrument Needle Valve) Common names: Power plant sampling needle valve, high temperature high pressure instrument globe valve, union bonnet needle valve.
2-Specification Parameter Interpretation
1. Model: HYG-4500(G)
2.Pressure Class
Rated working pressure (normal temperature): 448BAR (44.8MPa, about 6500PSI)
Rated working pressure (high temperature): 189BAR (18.9MPa)
3.Temperature Class
Normal applicable temperature: 38℃
High applicable temperature: 450℃
4.Connection: Both ends socket weld (SW) for seamless steel pipe welding assembly
5.Body Material: 316 stainless steel (316SS), suitable for corrosive medium, steam, oil and high-pressure gas
6.Executive Standard: JB/T 7747 Needle Globe Valve, GB/T 12224 General Requirements for Steel Valves
3-Application
• Power Industry: High-temperature and high-pressure sampling systems for power plant boilers, steam instrument pipelines, and primary/secondary process isolation valves.
• Petrochemical Industry: High-pressure oil and gas sampling, shut-off and fine regulation for chemical corrosive media pipelines.
• Instrumentation Industry: Front-end high-pressure shut-off valves for pressure transmitters and flowmeters, as well as high-precision flow control loops.
