Kunkle Valve 0537-H01-HM0075 Valve
The Kunkle Valve 0537-H01-HM0075 is a high-capacity ASME Section IV pressure relief valve designed specifically for hot water boilers, heat exchangers, and generators. Featuring a 2" Female NPT inlet and a 2 1/2" Female NPT outlet, this Model 537 valve is factory-set at 75 PSI to handle demanding thermal expansion and over-firing conditions. With a rated capacity of 11,960 lb/h (PPH) or 11,959,631 BTU/h, it provides critical overpressure protection by utilizing a B584 alloy 8440 seat and a durable SST spring. The heavy-duty cast iron body (standard for 2" models) and bronze trim ensure structural integrity in high-temperature HVACR environments. Its top-guided disc assembly includes a resilient seal for tight shutoff, while the isolating diaphragm prevents discharge liquids from corroding internal working parts. A heavy-duty lift lever is included for manual testing and maintenance, ensuring the valve remains operational under peak vessel pressure.
Key Benefits- High Discharge Capacity: Rated for up to 11,959,631 BTU/h, making it suitable for large-scale commercial hot water heating systems.
- Corrosion Resistance: Incorporates an internal diaphragm that shields the spring and guides from the flow media, extending the service life of the SST spring material.
- Precision Alignment: Features a pivot between the disc and spring to compensate for side thrust, ensuring consistent 75 PSI pop-off performance.
- Code Compliance: ASME Section IV "HV" National Board certified for low-pressure hot water boilers.
- Dual Purpose Protection: Engineered to manage both liquid expansion during normal firing and steam generation during control failure.
What is the maximum operating temperature for this valve?
The Model 0537-H01-HM0075 is rated for a temperature range of -20°F to 250°F, ideal for standard hydronic heating applications.
Can this valve be used for steam boiler applications?
While it is "HV" rated and uses steam-based capacity ratings, it is specifically designed for hot water boiler systems. For steam-only vessels, verify that your system requirements align with ASME Section IV or Section I specifications.
Is the seat material replaceable?
This model uses a B584 alloy 8440 bronze seat with an EPDM/NBR resilient insert. While the resilient components provide a superior seal, any internal repairs should be performed by an authorized VR-stamp facility to maintain the ASME certification.
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.
Kunkle Valve 0537-H01-HM0075 Valve
The Kunkle Valve 0537-H01-HM0075 is a high-capacity ASME Section IV pressure relief valve designed specifically for hot water boilers, heat exchangers, and generators. Featuring a 2" Female NPT inlet and a 2 1/2" Female NPT outlet, this Model 537 valve is factory-set at 75 PSI to handle demanding thermal expansion and over-firing conditions. With a rated capacity of 11,960 lb/h (PPH) or 11,959,631 BTU/h, it provides critical overpressure protection by utilizing a B584 alloy 8440 seat and a durable SST spring. The heavy-duty cast iron body (standard for 2" models) and bronze trim ensure structural integrity in high-temperature HVACR environments. Its top-guided disc assembly includes a resilient seal for tight shutoff, while the isolating diaphragm prevents discharge liquids from corroding internal working parts. A heavy-duty lift lever is included for manual testing and maintenance, ensuring the valve remains operational under peak vessel pressure.
Key Benefits- High Discharge Capacity: Rated for up to 11,959,631 BTU/h, making it suitable for large-scale commercial hot water heating systems.
- Corrosion Resistance: Incorporates an internal diaphragm that shields the spring and guides from the flow media, extending the service life of the SST spring material.
- Precision Alignment: Features a pivot between the disc and spring to compensate for side thrust, ensuring consistent 75 PSI pop-off performance.
- Code Compliance: ASME Section IV "HV" National Board certified for low-pressure hot water boilers.
- Dual Purpose Protection: Engineered to manage both liquid expansion during normal firing and steam generation during control failure.
What is the maximum operating temperature for this valve?
The Model 0537-H01-HM0075 is rated for a temperature range of -20°F to 250°F, ideal for standard hydronic heating applications.
Can this valve be used for steam boiler applications?
While it is "HV" rated and uses steam-based capacity ratings, it is specifically designed for hot water boiler systems. For steam-only vessels, verify that your system requirements align with ASME Section IV or Section I specifications.
Is the seat material replaceable?
This model uses a B584 alloy 8440 bronze seat with an EPDM/NBR resilient insert. While the resilient components provide a superior seal, any internal repairs should be performed by an authorized VR-stamp facility to maintain the ASME certification.
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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Product Information
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Description
The Kunkle Valve 0537-H01-HM0075 is a high-capacity ASME Section IV pressure relief valve designed specifically for hot water boilers, heat exchangers, and generators. Featuring a 2" Female NPT inlet and a 2 1/2" Female NPT outlet, this Model 537 valve is factory-set at 75 PSI to handle demanding thermal expansion and over-firing conditions. With a rated capacity of 11,960 lb/h (PPH) or 11,959,631 BTU/h, it provides critical overpressure protection by utilizing a B584 alloy 8440 seat and a durable SST spring. The heavy-duty cast iron body (standard for 2" models) and bronze trim ensure structural integrity in high-temperature HVACR environments. Its top-guided disc assembly includes a resilient seal for tight shutoff, while the isolating diaphragm prevents discharge liquids from corroding internal working parts. A heavy-duty lift lever is included for manual testing and maintenance, ensuring the valve remains operational under peak vessel pressure.
Key Benefits- High Discharge Capacity: Rated for up to 11,959,631 BTU/h, making it suitable for large-scale commercial hot water heating systems.
- Corrosion Resistance: Incorporates an internal diaphragm that shields the spring and guides from the flow media, extending the service life of the SST spring material.
- Precision Alignment: Features a pivot between the disc and spring to compensate for side thrust, ensuring consistent 75 PSI pop-off performance.
- Code Compliance: ASME Section IV "HV" National Board certified for low-pressure hot water boilers.
- Dual Purpose Protection: Engineered to manage both liquid expansion during normal firing and steam generation during control failure.
What is the maximum operating temperature for this valve?
The Model 0537-H01-HM0075 is rated for a temperature range of -20°F to 250°F, ideal for standard hydronic heating applications.
Can this valve be used for steam boiler applications?
While it is "HV" rated and uses steam-based capacity ratings, it is specifically designed for hot water boiler systems. For steam-only vessels, verify that your system requirements align with ASME Section IV or Section I specifications.
Is the seat material replaceable?
This model uses a B584 alloy 8440 bronze seat with an EPDM/NBR resilient insert. While the resilient components provide a superior seal, any internal repairs should be performed by an authorized VR-stamp facility to maintain the ASME certification.
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.
