ASME-Code VIII
Fast-Acting Air Safety Release Valve
Pressure-Relief Valve for Air (pressure relief on side)
Nickel-Plated Brass with Silicon Seal
1/4" N.P.T. Male Bottom Inlet
Overall Height: 2"
Test Ring Included
Valve Type: Pop Safety 
MCMC #5784T12-200

For Use With: Air or Inert Gas

ASME Code VIII for Air and Inert Gas

Temperature Range: -15 to 200 F

To protect against damage in air lines, air receivers, compressor tanks, and other air-powered equipment, these valves spring fully open at the set pressure and remain open until the system pressure is restored below the set pressure. 

Meet's  ASME Code Section VIII for use with air and inert gas pressure vessels. 

They have a vented relief port to exhaust discharge directly.

Nickel-plated brass body is more corrosion resistant than valves with a plain brass body.

Silicone seal provide's a better leak protection than regular brass seals.