Kunkle Valve 0537-G01-HM0015 Valve

The Kunkle Valve 0537-G01-HM0015 is a high-capacity ASME Section IV safety relief valve specifically engineered for low-pressure hot water boilers, heat exchangers, and steam generators. Designed to meet the rigorous "HV" National Board certification standards, this 1-1/2" x 2" bronze pressure relief valve provides critical overpressure protection caused by thermal expansion or control failure. It features a robust B584 alloy 84400 seat and a stainless steel spring (A313-631) to maintain precise 15 PSI set pressure. The top-guided disc assembly includes a resilient EPDM or NBR seal for bubble-tight shutoff, while an isolating diaphragm shields internal working components from corrosive discharge. Built for the heavy-duty demands of industrial and commercial HVAC systems, the 0537-G01-HM0015 (identical to 537-G01-HM0015) ensures a massive relief capacity of 2,288 lb/h (2,288,408 BTU/h). Its pivot design between the disc and spring corrects for misalignment, preventing common issues like spring side thrust during high-flow events.

• Dual-Purpose Protection: Relieves overpressure from both normal thermal expansion and emergency over-firing conditions.
• Heavy-Duty Construction: Features a corrosion-resistant bronze body and a durable zinc-plated steel lift lever for manual testing.
• Enhanced Component Life: The isolating diaphragm prevents discharged liquids from contacting the spring and guide assembly.
• Precision Alignment: Engineered with a pivot point to compensate for spring side thrust, ensuring consistent reseating.
• High Discharge Capacity: Certified to handle 2,288 PPH, making it ideal for large-scale hot water heating systems.

Common Questions

Is the Kunkle 0537-G01-HM0015 suitable for steam boilers?
Yes, while it is primarily used for low-pressure hot water boilers under ASME Section IV, its capacity is rated in both PPH (steam) and BTU/h (water) for 15 PSI applications.

What is the temperature range for this valve?
This model is designed for operation in environments ranging from -20°F to 250°F (-29°C to 121°C).

Can I use this valve for air or gas service?
No, the 537 series is specifically a Section IV "HV" stamped valve for water/steam heating service. For air or gas, a Section VIII "UV" stamped valve should be used.

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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.