Product Details
- Product Name:Bellows-Sealed Metering Valves
- Materialof the Valve body: 316,316L,304,321,Duplex 2507，Alloy 400，Alloy 600，Alloy C-276
- End Size:1/2”,3/4”,M20 x 1.5
Various end connection Types:NPT,BSPT,Female Metric Thread
Features
- Working pressure (stainless steel):
GV, GR series up to 6000 psig (414 bar)
GVH series up to 10000 psig (690 bar)
- Working temperature:
PTFE packing: -65°F to 450°F (-54°C to 232°C)
Graphite packing: -65°F to 1200°F (-54°C to 649°C)
Acetal seat: -20°F to 250°F (-28°C to 121°C)
PEEK seat: -65°F to 450°F (-54°C to 232°C)
- Orifice: GV and GVH Series: 0.157″ (4.0 mm)
GR Series: 0.25″ (6.4 mm)
- Non-rotating lower stem, GV/GVH series lower stem
ball tip design, GR series lower stem plug tip design
- Safety back seating seals in fully open position
- Rolled spindle operating threads
- Lubricant for stem thread isolated from the media
- Externally adjustable gland
- Bonnet locking pin fitted as standard
- Option for different colored handles
- Every gauge valve leak tested at factory at rated working pressure
Application:
GV Series (Standard Type)
Application Scenarios:
Direct installation and isolation of pressure gauges or pressure transmitters
Pressure sampling points in process pipelines
System venting and pressure relief
Test interface connections (e.g., pressure calibrators)
Typical Industries:
Petroleum and chemical
Power systems (boilers, steam turbines)
Pharmaceutical and food industries (sanitary connections)
Water treatment systems
GVH Series (High-Pressure Type)
Application Scenarios:
Pressure monitoring at high-pressure oil and gas wellheads
Pressure sampling in supercritical boilers
Pressure control in high-pressure reactors
Hydraulic system pressure interfaces
Typical Industries:
Oil and gas exploration and production
High-pressure chemical plants
Marine and offshore engineering
Aerospace hydraulic systems
GR Series (Corrosion-Resistant Type)
Application Scenarios:
Pressure measurement of corrosive media (acids, alkalis, chlorine, etc.)
High-temperature corrosive process pipelines
Pressure interfaces in chemical reactors
Pressure monitoring in seawater or brine systems
Typical Industries:
Chlor-alkali industry
Sulfuric acid and nitric acid production plants
Seawater desalination systems
Hydrometallurgical plants
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