Mueller Industries AH15502 Valve
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Mueller Industries AH15502 Valve

Mueller Industries AH15502 Valve

The Mueller Industries AH15502 is a professional-grade refrigerant pressure relief valve engineered for critical overpressure protection in commercial HVACR systems. Specifically designed as a direct replacement for 5231-400, this atmospheric relief valve features a 400 PSI set pressure. The construction utilizes high-tensile brass for corrosion resistance and reliable seating under high-pressure conditions. With a 3/8 NPTFE inlet and a 3/8 flare outlet, this PRV ensures a leak-proof interface with standard refrigeration manifolds and receivers. For technicians servicing legacy equipment, the AH15502 provides a drop-in solution to maintain code compliance and system safety. Its internal spring mechanism is factory-calibrated to ensure precise discharge when system pressures exceed the 400# rating, preventing catastrophic component failure. This valve is compatible with most common HCFC and HFC refrigerants used in mid-range pressure applications.

Key Benefits
  • Direct cross-reference: Replaces 5231-400 without requiring piping modifications or additional adapters.
  • Precision calibration: Factory-set at 400 PSI to provide consistent overpressure venting and system safety.
  • Durable brass construction: Resists scaling and corrosion in harsh mechanical room environments.
  • Standardized connections: Features a 3/8 x 3/8 NPTFE x Flare configuration for straightforward installation on liquid receivers.
  • Compact footprint: Allows for easy installation in tight equipment cabinets where clearance is limited.
Common Questions

Is the AH15502 compatible with high-pressure R-410A systems?
No, this valve is rated for 400# PRV applications. You must verify that your system’s maximum allowable working pressure matches this set point; R-410A systems generally require significantly higher relief settings.

Can this relief valve be field-repaired or recalibrated?
Pressure relief valves are safety devices and should never be disassembled or adjusted in the field. If the valve has discharged or shows signs of leakage, the unit must be replaced.

What is the difference between NPTFE and standard NPT for this valve?
The 3/8 NPTFE inlet uses a Dryseal thread design, providing a tighter mechanical seal intended to prevent refrigerant migration through the threads without excessive sealant.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

$33.45

Original: $95.58

-65%
Mueller Industries AH15502 Valve

$95.58

$33.45

Mueller Industries AH15502 Valve

The Mueller Industries AH15502 is a professional-grade refrigerant pressure relief valve engineered for critical overpressure protection in commercial HVACR systems. Specifically designed as a direct replacement for 5231-400, this atmospheric relief valve features a 400 PSI set pressure. The construction utilizes high-tensile brass for corrosion resistance and reliable seating under high-pressure conditions. With a 3/8 NPTFE inlet and a 3/8 flare outlet, this PRV ensures a leak-proof interface with standard refrigeration manifolds and receivers. For technicians servicing legacy equipment, the AH15502 provides a drop-in solution to maintain code compliance and system safety. Its internal spring mechanism is factory-calibrated to ensure precise discharge when system pressures exceed the 400# rating, preventing catastrophic component failure. This valve is compatible with most common HCFC and HFC refrigerants used in mid-range pressure applications.

Key Benefits
  • Direct cross-reference: Replaces 5231-400 without requiring piping modifications or additional adapters.
  • Precision calibration: Factory-set at 400 PSI to provide consistent overpressure venting and system safety.
  • Durable brass construction: Resists scaling and corrosion in harsh mechanical room environments.
  • Standardized connections: Features a 3/8 x 3/8 NPTFE x Flare configuration for straightforward installation on liquid receivers.
  • Compact footprint: Allows for easy installation in tight equipment cabinets where clearance is limited.
Common Questions

Is the AH15502 compatible with high-pressure R-410A systems?
No, this valve is rated for 400# PRV applications. You must verify that your system’s maximum allowable working pressure matches this set point; R-410A systems generally require significantly higher relief settings.

Can this relief valve be field-repaired or recalibrated?
Pressure relief valves are safety devices and should never be disassembled or adjusted in the field. If the valve has discharged or shows signs of leakage, the unit must be replaced.

What is the difference between NPTFE and standard NPT for this valve?
The 3/8 NPTFE inlet uses a Dryseal thread design, providing a tighter mechanical seal intended to prevent refrigerant migration through the threads without excessive sealant.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

Product Information

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Description

The Mueller Industries AH15502 is a professional-grade refrigerant pressure relief valve engineered for critical overpressure protection in commercial HVACR systems. Specifically designed as a direct replacement for 5231-400, this atmospheric relief valve features a 400 PSI set pressure. The construction utilizes high-tensile brass for corrosion resistance and reliable seating under high-pressure conditions. With a 3/8 NPTFE inlet and a 3/8 flare outlet, this PRV ensures a leak-proof interface with standard refrigeration manifolds and receivers. For technicians servicing legacy equipment, the AH15502 provides a drop-in solution to maintain code compliance and system safety. Its internal spring mechanism is factory-calibrated to ensure precise discharge when system pressures exceed the 400# rating, preventing catastrophic component failure. This valve is compatible with most common HCFC and HFC refrigerants used in mid-range pressure applications.

Key Benefits
  • Direct cross-reference: Replaces 5231-400 without requiring piping modifications or additional adapters.
  • Precision calibration: Factory-set at 400 PSI to provide consistent overpressure venting and system safety.
  • Durable brass construction: Resists scaling and corrosion in harsh mechanical room environments.
  • Standardized connections: Features a 3/8 x 3/8 NPTFE x Flare configuration for straightforward installation on liquid receivers.
  • Compact footprint: Allows for easy installation in tight equipment cabinets where clearance is limited.
Common Questions

Is the AH15502 compatible with high-pressure R-410A systems?
No, this valve is rated for 400# PRV applications. You must verify that your system’s maximum allowable working pressure matches this set point; R-410A systems generally require significantly higher relief settings.

Can this relief valve be field-repaired or recalibrated?
Pressure relief valves are safety devices and should never be disassembled or adjusted in the field. If the valve has discharged or shows signs of leakage, the unit must be replaced.

What is the difference between NPTFE and standard NPT for this valve?
The 3/8 NPTFE inlet uses a Dryseal thread design, providing a tighter mechanical seal intended to prevent refrigerant migration through the threads without excessive sealant.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.