Overview
The Kunkle Valve 6283G is a heavy-duty relief valve engineered for steam, air, and gas applications. This 1-1/4″ port model features an over-sized side outlet with full nozzle design and bronze/brass trim, making it ideal for boilers, compressors, and pressurized equipment requiring reliable pressure protection.
Key Features
- Over-sized side outlet design for efficient pressure relief
- Full nozzle construction with bronze/brass trim for durability
- ASME Section I and VIII certified for steam service
- ASME Section VIII certified for air/gas service
- Heavy-duty ductile iron casting body
- Available with optional O-ring seats for enhanced leak-free performance
Technical Specifications
- Pressure Setting: 125 PSIG
- Port Size: 1-1/4″
- Outlet Type: Side outlet
- Valve Configuration: Full nozzle design
- Material Trim: Bronze/brass
- Housing Material: Ductile iron casting
- Steam Service Pressure Range: 15–250 PSIG
- Steam Service Temperature Range: −60°F to +406°F
- Air/Gas Service Pressure Range: 3–300 PSIG
- Air/Gas Service Temperature Range: −60°F to +406°F
- Certifications: ASME Section I, ASME Section VIII (steam, air, gas)
- Optional Features: O-ring seats available for tight shutoff
Typical Applications
- Steam boilers and steam generators
- Reciprocating and rotary air compressors
- Gas compressors
- Intercoolers and aftercoolers
- Pressurized steam autoclaves and sterilizers
- Pressure reducing stations
- Industrial heating systems requiring overpressure protection
Compatibility & Replacements
Compatible With
- Steam boiler systems rated for 15–250 PSIG
- Air and gas compression equipment
- Pressurized vessels and autoclaves
- Industrial pressure regulation systems
- Systems requiring ASME Section I or VIII certification
Replaces / Drop-In Replacement For
- Direct replacement for Kunkle 6283 models with matching pressure settings
- Other 1-1/4″ ASME-certified relief valves with equivalent pressure ratings
Works With
- ASME Section I certified boiler systems
- ASME Section VIII Division 1 pressure vessel equipment
- Standard industrial pressure gauge fittings and connections
- O-ring seat assemblies for enhanced sealing (optional)
