Kunkle Valve 0537-G01-HM0030 ASME Section IV Steam & Hot Water Boiler Pressure Relief Valve
The Kunkle Valve 0537-G01-HM0030 is a heavy-duty, ASME Section IV–rated pressure relief valve engineered for steam and hot water boiler applications. With a 1-1/2″ Female NPT inlet and a 2″ Female NPT outlet, this valve delivers reliable overpressure protection in demanding hydronic and steam heating systems. Its bronze body construction, precision-machined seat, and stainless steel spring ensure long service life and consistent performance.
Key Specifications
- SKU: 0537-G01-HM0030
- Inlet Connection: 1-1/2″ Female NPT
- Outlet Connection: 2″ Female NPT
- Set Pressure: 30 PSI
- Capacity: 3,499 lb/h (PPH) steam
- BTU/h Capacity: 3,496,230 BTU/h
- Body Material: Bronze
- Seat Material: B584 Alloy 8440
- Spring Material: Stainless Steel (SST)
- Certification: ASME Section IV (Steam / Hot Water Boiler)
Design & Construction
- Bronze body provides excellent corrosion resistance in steam and hydronic environments
- B584 alloy 8440 seat ensures a tight, reliable seal under repeated cycling
- Stainless steel spring resists corrosion and maintains consistent set-pressure accuracy
- Female NPT connections on both inlet and outlet for straightforward installation
- Larger 2″ outlet facilitates safe, unrestricted discharge flow
Application & Compliance
Designed specifically for hot water boilers and steam heating systems, the Kunkle 0537-G01-HM0030 meets ASME Section IV requirements — the governing standard for heating boilers. It is ideal for commercial and industrial boiler rooms where code-compliant overpressure protection is mandatory. Always verify that the valve’s set pressure and capacity ratings match your specific boiler system requirements before installation.
Why Choose Kunkle Valve
- Trusted industry leader in pressure relief valve manufacturing
- ASME-certified for peace of mind and code compliance
- High-capacity rating (3,499 PPH / 3,496,230 BTU/h) suitable for larger boiler systems
- Durable materials engineered for long service intervals with minimal maintenance
