Marine refrigeration service valves are essential components in shipboard cooling systems, enabling maintenance and refrigerant handling. These valves facilitate safe access for charging, evacuation, and pressure monitoring within the refrigeration cycle. They are designed to withstand harsh marine environments while ensuring system efficiency and reliability.

Marine Refrigeration Service Valves:

- Size: 1/4" to 1" (common), larger sizes available

- Grade: ANSI/ASHRAE Standard 15, ISO 5149

- Viscosity: N/A (valves not fluid-dependent)

- Buoyancy: N/A (non-floating component)

- Material: Brass, stainless steel (AISI 304/316), forged steel

- Pressure Rating: 150 psi to 600 psi (standard), higher for specialized systems

- Temperature Range: -40°F to 250°F (-40°C to 121°C)

Marine Refrigeration Systems:

- Size: Varies (small units 1-5 HP, large systems 20+ HP)

- Grade: ISO 817 (refrigerant standards), IMO/MARPOL compliant

- Viscosity: Refrigerant-specific (e.g., R134a: 0.2 cP @ 25°C)

- Buoyancy: N/A (system-mounted, not buoyant)

- Material: Copper tubing, aluminum fins, stainless steel housings

- Pressure Range: Low-side 10-50 psi, high-side 100-300 psi (varies by refrigerant)

- Temperature Range: -60°F to 150°F (-51°C to 66°C) operational

- Refrigerant Types: R134a, R404A, R22 (phasing out), ammonia (NH3) for industrial