
Kunkle Valve 0537-D01-HM0160 Valve
The Kunkle Valve 0537-D01-HM0160 is a high-capacity ASME Section IV pressure relief valve specifically engineered for low-pressure hot water boilers, heat exchangers, and steam generators. This National Board certified relief valve features a 3/4 inch FNPT inlet and a 1 inch FNPT outlet, factory-set at a precise 160 PSI discharge threshold. Built with an extra-heavy bronze body (B584 alloy 84400), it utilizes a top-guided disc assembly with a resilient EPDM seat insert to maintain zero-leakage performance under extreme thermal cycles. The internal stainless steel spring (A313-631) is protected by an isolating diaphragm, preventing corrosive discharge from reaching critical moving parts. For service and testing, the valve is equipped with a heavy duty lift lever and a pivot-point design that compensates for spring side thrust, ensuring consistent re-seating and long-term boiler overpressure protection in commercial HVACR environments.
Key Benefits- High Discharge Capacity: Certified 4219 lb/h (4,219,103 BTU/h) rating meets rigorous ASME Section IV and XIII safety standards for large-scale hydronic systems.
- Corrosion Resistance: Features a rugged bronze seat and SST spring material to withstand high-temperature water and steam applications up to 250°F.
- Dual-Purpose Protection: Effectively manages overpressure from both daily thermal expansion and critical over-firing events caused by control failures.
- Precision Alignment: Integrated ball-bearing pivot between the disc and spring corrects for potential misalignment and side-loading.
What is the maximum temperature rating for this valve?
The Kunkle 537 series is rated for a temperature range of -20°F to 250°F, making it suitable for high-temperature hot water heating systems.
Can this valve be used for both water and steam service?
Yes, it is dual-rated and "HV" National Board certified for relieving both water and steam in hot water boiler applications.
What does the "HM" designation in the part number refer to?
The "H" indicates the service type (Steam ASME Section IV - Hot Water) and the "M" specifies the stainless steel spring material.
This item is not eligible for free shipping.
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.
Original: $334.25
-65%$334.25
$116.99Kunkle Valve 0537-D01-HM0160 Valve
The Kunkle Valve 0537-D01-HM0160 is a high-capacity ASME Section IV pressure relief valve specifically engineered for low-pressure hot water boilers, heat exchangers, and steam generators. This National Board certified relief valve features a 3/4 inch FNPT inlet and a 1 inch FNPT outlet, factory-set at a precise 160 PSI discharge threshold. Built with an extra-heavy bronze body (B584 alloy 84400), it utilizes a top-guided disc assembly with a resilient EPDM seat insert to maintain zero-leakage performance under extreme thermal cycles. The internal stainless steel spring (A313-631) is protected by an isolating diaphragm, preventing corrosive discharge from reaching critical moving parts. For service and testing, the valve is equipped with a heavy duty lift lever and a pivot-point design that compensates for spring side thrust, ensuring consistent re-seating and long-term boiler overpressure protection in commercial HVACR environments.
Key Benefits- High Discharge Capacity: Certified 4219 lb/h (4,219,103 BTU/h) rating meets rigorous ASME Section IV and XIII safety standards for large-scale hydronic systems.
- Corrosion Resistance: Features a rugged bronze seat and SST spring material to withstand high-temperature water and steam applications up to 250°F.
- Dual-Purpose Protection: Effectively manages overpressure from both daily thermal expansion and critical over-firing events caused by control failures.
- Precision Alignment: Integrated ball-bearing pivot between the disc and spring corrects for potential misalignment and side-loading.
What is the maximum temperature rating for this valve?
The Kunkle 537 series is rated for a temperature range of -20°F to 250°F, making it suitable for high-temperature hot water heating systems.
Can this valve be used for both water and steam service?
Yes, it is dual-rated and "HV" National Board certified for relieving both water and steam in hot water boiler applications.
What does the "HM" designation in the part number refer to?
The "H" indicates the service type (Steam ASME Section IV - Hot Water) and the "M" specifies the stainless steel spring material.
This item is not eligible for free shipping.
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.
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Description
The Kunkle Valve 0537-D01-HM0160 is a high-capacity ASME Section IV pressure relief valve specifically engineered for low-pressure hot water boilers, heat exchangers, and steam generators. This National Board certified relief valve features a 3/4 inch FNPT inlet and a 1 inch FNPT outlet, factory-set at a precise 160 PSI discharge threshold. Built with an extra-heavy bronze body (B584 alloy 84400), it utilizes a top-guided disc assembly with a resilient EPDM seat insert to maintain zero-leakage performance under extreme thermal cycles. The internal stainless steel spring (A313-631) is protected by an isolating diaphragm, preventing corrosive discharge from reaching critical moving parts. For service and testing, the valve is equipped with a heavy duty lift lever and a pivot-point design that compensates for spring side thrust, ensuring consistent re-seating and long-term boiler overpressure protection in commercial HVACR environments.
Key Benefits- High Discharge Capacity: Certified 4219 lb/h (4,219,103 BTU/h) rating meets rigorous ASME Section IV and XIII safety standards for large-scale hydronic systems.
- Corrosion Resistance: Features a rugged bronze seat and SST spring material to withstand high-temperature water and steam applications up to 250°F.
- Dual-Purpose Protection: Effectively manages overpressure from both daily thermal expansion and critical over-firing events caused by control failures.
- Precision Alignment: Integrated ball-bearing pivot between the disc and spring corrects for potential misalignment and side-loading.
What is the maximum temperature rating for this valve?
The Kunkle 537 series is rated for a temperature range of -20°F to 250°F, making it suitable for high-temperature hot water heating systems.
Can this valve be used for both water and steam service?
Yes, it is dual-rated and "HV" National Board certified for relieving both water and steam in hot water boiler applications.
What does the "HM" designation in the part number refer to?
The "H" indicates the service type (Steam ASME Section IV - Hot Water) and the "M" specifies the stainless steel spring material.
This item is not eligible for free shipping.
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.











