




Safety Valve 1/4" 12 Bar Pressure Relief – Brass Machined
12 Bar pressure relief valve (1/4" connection) for compressors, tanks, and inflators. Brass construction, preset relief setting.
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Safety Valve 1/4" 12 Bar Pressure Relief
Brief Overview
This brass-bodied safety relief valve is engineered to protect pneumatic systems—compressors, pressure tanks, and inflators—from dangerous overpressurization. Preset to 12 Bar, it automatically vents excess air when system pressure exceeds the threshold, preventing equipment damage and ensuring operator safety. The 1/4" male threaded inlet connects seamlessly into standard pneumatic line work. For systems requiring different protection levels, lower-pressure relief options and check valve alternatives are also available for integrated system design.
Key Features
- Pressure Setting: 12 Bar relief threshold (preset, non-adjustable)
- Connection: 1/4" male threaded inlet with discharge orifice
- Construction: Machined brass with smooth, corrosion-resistant finish
- Valve Type: 3804D series relief mechanism
- Installation: Hexagonal nut and knurled collar design for secure, hand-tight tightening
- Flow Direction: Clearly marked with engraved arrow and pressure rating indicators
- Compliance: Marked with standard reference designations for pressure equipment
Why Resellers Choose This Valve
Reliable Margin Builder Safety valves are recurring consumables in compressed air shops—replacement frequency drives repeat orders. At 12 Bar, this is a workhorse rating for industrial and commercial compressor systems, covering a substantial customer base.
Low Support Load Preset relief valves require zero field adjustment—install, forget, and service. This eliminates customer troubleshooting calls and positions your shop as a trusted, no-hassle supplier.
Bulk Opportunity Compressor techs typically stock these in multiple bar ratings. Stock this alongside 10 Bar alternatives to capture full system builds and emergency replacements.
Technical Specifications
| Specification | Value |
|---|---|
| Connection Size | 1/4" male thread |
| Pressure Setting | 12 BAR |
| Valve Type | 3804D relief mechanism |
| Material | Machined brass |
| Thread Style | Standard pneumatic male |
| Operating Range | Up to 12 BAR maximum |
| Discharge Capacity | Full line venting at relief threshold |
| Installation | Direct inline with wrench-flats tightening |
Application Context
Primary Markets:
- Industrial air compressor protection (fixed installation)
- Portable inflator systems and pressure tanks
- Pneumatic tool stations requiring overpressure shutdown
- Mobile service units and workshop compressed air systems
Why 12 Bar Matters: At 12 BAR relief setting, this valve protects mid-range compressor systems (typical operational pressures 8–10 BAR) with a built-in safety margin. It's the sweet spot for professional shops handling mixed equipment loads.
Bottom Line for Your Business
Stock this valve as a system-critical safety component. Its preset, maintenance-free design ensures customer satisfaction and repeat orders. Position it alongside complementary pressure management tools to build a complete air system offering. The brass construction and engraved pressure markings communicate professional-grade quality to your end customers—reinforcing your shop's reputation as a reliable, standards-compliant supplier.
Ready to add to your inventory? This is a high-velocity safety item with predictable replacement cycles. Order in bulk and establish this as a non-negotiable stock line.