Kunkle Valve 0548-A01-KM0030 Valve

The Kunkle Valve 0548-A01-KM0030 is a high-capacity ASME Section VIII air/gas pressure relief valve designed for demanding industrial environments. Built with a rugged brass body and a stainless steel ball seat, this valve ensures superior tightness and durability in compressed air systems. It features a 1/4" male NPT inlet and is factory set at 30 PSI with a flow capacity of 43 SCFM. This model serves as the primary AL-412 replacement valve, offering a direct fit for veteran technicians maintaining single-stage air compressors, intercoolers, and instrument air lines. The top-guided disc and stainless steel spring maintain consistent set-pressure accuracy across a wide temperature range from -60°F to 400°F. Each unit is factory sealed to prevent unauthorized tampering, meeting strict National Board certification standards. For contractors, this brass safety valve provides a reliable, code-compliant solution for air tanks and receivers requiring high-flow discharge in a compact footprint.

Key Benefits

• Direct Replacement: Seamlessly replaces the AL-412 relief valve without requiring piping modifications.
• Extensive Temperature Range: Rated for service from -60°F to 400°F, making it suitable for high-heat aftercooler applications.
• Enhanced Durability: The stainless steel ball seat (A756 440C) resists galling and corrosion better than standard brass-to-brass seats.
• Code Compliance: ASME Section VIII UV stamped and National Board certified for air/gas pressure relief.
• Tamper-Resistant Design: Factory sealed with a manual lift ring for required periodic testing without compromising the pressure setting.

Common Questions

Can this valve be used for steam or liquid service?
No, the 0548-A01-KM0030 is specifically engineered and certified for air and gas service under ASME Section VIII. Using this in steam or liquid applications violates safety codes and may cause valve failure.

Is this valve adjustable in the field?
Internal adjustments are not permitted as the valve is factory sealed to maintain its 30 PSI set pressure. Breaking the seal voids the ASME certification and safe operation ratings.

How should this valve be mounted for optimal performance?
For proper drainage and to prevent debris from fouling the stainless steel seat, technicians must install the valve in a vertical upright position.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.