Description
The Kunkle Valve 0537-H01-HM0030 is a heavy-duty ASME Section IV certified pressure relief valve engineered for hot water boiler and steam system applications. With a 2″ Female NPT inlet and a 2-1/2″ Female NPT outlet, this valve is factory-set at 30 PSI and delivers an impressive relief capacity of 6,221 lb/h (PPH) — equivalent to 6,221,095 BTU/h — making it well-suited for large commercial and industrial hydronic systems.
Constructed from durable bronze with a B584 alloy 8440 seat and a stainless steel (SST) spring, the 0537-H01-HM0030 is built to withstand the demands of continuous boiler operation while providing reliable, repeatable pressure protection. ASME Section IV compliance ensures the valve meets the strict safety standards required for hot water heating boilers.
Key Features
- 2″ Female NPT inlet x 2-1/2″ Female NPT outlet configuration
- Factory set at 30 PSI relief pressure
- Relief capacity: 6,221 lb/h (PPH) / 6,221,095 BTU/h
- Bronze body construction for corrosion resistance
- B584 alloy 8440 seat material for long service life
- Stainless steel (SST) spring for durability and consistent performance
- ASME Section IV certified for steam and hot water boiler service
Applications
- Hot water heating boilers (hydronic systems)
- Steam boiler pressure relief
- Large commercial and industrial heating systems
- Anywhere ASME Section IV compliance is required
Specifications
- SKU: 0537-H01-HM0030
- Brand: Kunkle Valve
- Inlet Connection: 2″ Female NPT
- Outlet Connection: 2-1/2″ Female NPT
- Set Pressure: 30 PSI
- Capacity: 6,221 lb/h (PPH)
- BTU/h Capacity: 6,221,095 BTU/h
- Body Material: Bronze
- Seat Material: B584 Alloy 8440
- Spring Material: Stainless Steel (SST)
- Certification: ASME Section IV (Steam / Hot Water Boiler)
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