Technical Specification: Danfoss GBC 42s Shut-off Ball Valve
General Description
The Danfoss GBC 42s is a manually operated shut-off ball valve designed for bidirectional flow application in refrigeration and air conditioning systems. It provides maximum tightness across the seat and external seals, making it suitable for liquid, suction, and hot gas lines.
Mechanical & Connection Specifications
- Connection Size: 42 mm / 1 5/8 inch
- Connection Type: Solder, ODF (Copper)
- Valve Body Material: Brass
- Core Material: Chrome-plated brass
- Flow Direction: Bi-directional (Bi-flow)
- Operation: 1/4 turn from fully open to fully closed
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Flow Coefficient (Kv Value): 163.63 m³/h
Performance & Environmental Limits
- Maximum Working Pressure (PS/MWP): 45 bar / 650 psig
- Media Temperature Range: -40 °C to 100 °C / -40 °F to 212 °F
- Short-Term Peak Temperature: Up to 150 °C / 302 °F
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Refrigerant Compatibility: Approved for HCFC, HFC, R744 (CO2), and flammable refrigerants (A2L/A3 dependent on specific variant safety approvals).
Design Features & Safety
- Sealing System: Double O-ring stem seal design ensures high external tightness.
- Seat Seals: Modified PTFE seat seals provide excellent internal tightness and low torque operation.
- Explosion-Proof Stem: Internal blowout-proof stem construction prevents the stem from ejecting under pressure.
- Safety Cap: One-piece seal cap complies with European safety standards and includes provisions for safety wire sealing to prevent unauthorized access.
- Access Port Optional: Available with or without a Schrader valve / access port for system pressure monitoring and charging.
