American Made Brass Pressure Relief 0-100 PSI Adjustable Range Valve Compatible with Control Devices CR25-100 -CR25 CR Series & Midwest Control PC-25, 1/4 NPT-M Size

This adjustable brass pressure Rrelief valve is a precision safety component engineered for reliable over-pressure protection in compressed air systems and pneumatic equipment. Constructed with a forged brass body and stainless-steel internals, this valve provides rugged corrosion resistance and long-term durability in demanding operational environments. Its adjustable micrometer-style nylon knob allows fine pressure setpoint control from 0 to 100 psi, making it suitable for a wide range of applications from small shop compressors to industrial pneumatic safety circuits. The valve incorporates a fluorocarbon O-ring for superior sealing performance, and its 1/4″ male NPT inlet ensures straightforward integration into existing plumbing and tank ports. Rated for up to 6 SCFM flow and 250 °F maximum temperature, this relief valve maintains system integrity by releasing excess pressure before damage or failure occurs, delivering dependable safety performance where it matters most.

• Adjustable Pressure Range 0–100 psi – Precision micrometer adjustment knob lets users set exact relief thresholds for tailored over-pressure protection in varied compressor and pneumatic applications.
• Rugged Brass & Stainless Construction – Forged brass body with stainless-steel poppet and spring resists corrosion while fluorocarbon O-ring sealing enhances leak resistance and service life across cycles.
• Universal 1/4″ NPT Installation – Standard male NPT threading enables broad compatibility with air tanks, pumps, manifolds, and pneumatic systems, streamlining retrofit or OEM integration without adapters.
• High Temp & Flow Capacity – Rated for up to 250 °F operating temperature and 6 SCFM flow capacity, supporting robust performance under elevated thermal conditions and pressure loads.
• Essential Safety Component – Designed to release excess pressure before system stress or rupture occurs, making it suitable for air compressor tanks, shop tools, pneumatic machines, and other pressurized systems where safety compliance and reliability matter.
• The “1/4 inch” in 1/4″ NPT does not measure 1/4″ across the threads. If you measure the outside of the threads with a ruler, you’ll see about 0.540″ (just over 1/2 inch). This is normal. NPT sizes are named after the approximate inside pipe diameter, not the outside thread size.