Overview
The Superior Valve B12-048 is a direct-acting pressure relief valve rated for 400 PSI maximum relief setting. With a 1/4″ NPT inlet and 3/8″ SAE flare outlet, this valve delivers straightforward overpressure protection in compact industrial systems. Superior Valve pressure relief valves are engineered to ANSI/ASHRAE standards and feature PTFE seats for reliable performance across temperature extremes.
Key Features
- 400 PSI maximum pressure relief setting
- 1/4″ NPT x 3/8″ SAE flare connection design
- PTFE-seated for high and low temperature service
- Direct-acting relief mechanism for fast response
- Compact cartridge-style body for space-constrained installations
- National Board certified construction
Technical Specifications
| Part Number | B12-048 |
| Manufacturer | Superior Valve |
| Maximum Relief Setting | 400 PSI |
| Inlet Connection | 1/4″ NPT |
| Outlet Connection | 3/8″ SAE Flare |
| Seat Material | PTFE (Teflon®) |
| Body Material | Forged brass |
| Operating Temperature Range | -40°F to 275°F |
| Certifications | ANSI/ASHRAE 15, National Board |
Typical Applications
- Industrial hydraulic pump overpressure protection
- Pneumatic air compressor relief
- Refrigeration and HVAC systems
- Plumbing and water pressure regulation
- Small-bore pressure vessel safety
Compatibility & Replacements
Compatible With
- Hydraulic and pneumatic systems rated 400 PSI or lower
- NPT-threaded inlet manifolds and ported bodies
- SAE flare outlet tubing and fittings
- Standard spring-loaded relief applications
Replaces / Drop-In Replacement For
- Verify specific model interchangeability with your system documentation before installation
Works With
- NPT and SAE flare piping systems
- ANSI/ASHRAE 15 compliant refrigeration circuits
- ASME pressure vessel codes (Section VIII, Division 1)
- Standard spring-loaded relief cartridges and manifolds
