GW402C - Hansen - 4 Refrigerant Shut-off Valve Globe, Butt Weld, SC

The Hansen GW402C is a 4" globe-style refrigerant shut-off valve designed for industrial refrigeration systems, particularly those using ammonia (NH₃) and other approved refrigerants. It features butt weld (BW) connections and a seal cap (SC) for secure, tamper-resistant operation.

🔧 Key Specifications

• Model: GW402C
• Valve Type: Globe Shut-off Valve
• Size: 4" (100 mm)
• Connection: Butt Weld (BW)
• Handle: Seal Cap (SC)
• Application: Standard refrigerant shut-off
• Body Material: Cast steel (ASTM A-352, Grade LCB)
• Bonnet: Screwed or bolted, ductile iron (ASTM A536)
• Stem: Polished stainless steel
• Seat Disc: Retained PTFE (Teflon)
• Stem Packing: Graphite composite + neoprene O-ring
• Operating Temperature: -60°F to 240°F (-51°C to 115°C)
• Safe Working Pressure: 400 psig (28 bar g)
• Finish: Painted
• Weight: Approx. 45–50 lbs

💡 Features

• Low pressure drop design
• No-leak seal-plus stem packing for long-term reliability
• Butt weld connections eliminate threaded or flanged joints, reducing leak potential
• Seal cap provides tamper resistance and safety
• Rigid cast steel body resists flexing and corrosion