Overview
The Kunkle Valve 0537-E01-HM0125 is a heavy-duty ASME Section IV certified pressure relief valve engineered for steam and hot water boiler applications. With a 1″ Female NPT inlet and 1-1/4″ Female NPT outlet, this valve delivers reliable overpressure protection at a factory-set pressure of 125 PSI. Its high-capacity rating of 5,263 lb/h (PPH) — equivalent to 5,262,619 BTU/h — makes it well suited for demanding commercial and industrial hydronic heating systems.
Construction & Materials
- Bronze body construction for excellent corrosion resistance and long service life
- B584 alloy 8440 seat material for durable, leak-tight sealing
- Stainless steel (SST) spring for reliable set-point accuracy and resistance to corrosion
Performance Specifications
- Inlet connection: 1″ Female NPT
- Outlet connection: 1-1/4″ Female NPT
- Set pressure: 125 PSI
- Capacity: 5,263 lb/h (PPH)
- Capacity: 5,262,619 BTU/h
- Application: ASME Section IV Steam / Hot Water Boiler
Certifications & Compliance
- ASME Section IV certified — meets code requirements for steam and hot water heating boilers
Applications
The Kunkle 0537-E01-HM0125 is ideal for use on steam and hot water heating boilers in commercial, institutional, and industrial facilities. It provides code-compliant overpressure protection, safeguarding boiler systems and personnel against dangerous pressure buildup.
