1 4 npt safety valve for sale

Brand new field adjustable, Non Code 1/4" NPT pressure relief valve kit. This is a high quality relief valve that can easily be adjusted to any pressure between 25 and 200 PSI. This valve kit comes with 4 springs. These springs are easy to change out and give you the ability to easily alternate relief pressure anywhere from 25-50, 50-100, 100-150, and 150-200 PSI! The knurled thumbscrew and jam nut make adjustments easy and repeatable. This valve can be used in a variety of applications and has a max temperature rating of 250°F. This relief valve is made of solid brass and has an inner silicon rubber seal and a zinc plated music wire spring.

This 1/4" MNPT safety relief valve is constructed with the same materials as ASME safety valves, but is not national board certified so they cannot be used on applications requiring ASME components. The non-coded valve is equipped with a lift ring for instant relief and is stacked at the factory at the pre set pop-off pressure. Has a pop-off pressure of 125 PSI. These valves are not for use on compressors with a capacity over 15 CFM, 3 HP or 12 gallon storage tank.

A Pressure Relief Valve (also known as a Safety Valve, Overpressure Relief Valve, or simply a Relief Valve) limits the amount of pressure in a compressed gas system. Without such a valve in place, pressure could build up beyond what the system is designed for and cause equipment failure. The Pressure Relief Valve opens at a designed “set pressure” to protect the system against failure from being overpressurized.

We are a leading manufacturer of high quality valves serving the compressed air, pressure washer, automotive, fluid power, fire protection, specialty gas, and pneumatic industries.

The Model “ST” safety valve is our standard safety valve for small air compressor systems and related applications. Even though the size is compact, flow capacities are high.

Resilient rubber pad, offered in silicone or flourocarbon, insures valve is bubble-tight to within 10% of set pressure. Three inlet sizes are available: 1/8″ NPT, 1/4″ NPT, and 3/8″ NPT.

All brass construction with stainless steel spring and stainless steel ball seating on brass seat. Three inlet sizes available: 1/8″ NPT, 1/4″ NPT, 3/8″ NPT.

Model “SV” ASME safety valves are designed for systems where large flow capacities are needed. Resilient pad insures valve is bubble-tight to within 10% of set pressure. Inlet size: 1/2″ NPT.

All brass construction with stainless steel spring and stainless steel ball seating on brass seat. Inlet size: 1/2″ NPT. Stamped with “UV” and “NB” symbols. Available set pressure range 50 PSI to 350 PSI. Set pressure tolerance +3% of set pressure. 350°F max. temperature.

Model “SB” safety valves offer Control Devices value to users of high capacity ASME safety valves. Unique O-ring seal insures valve is bubble-tight to within 10% of set pressure. 1/2″ NPT and 3/4″ NPT inlets available.

The model “SW” valve is our highest capacity ASME safety valve. Unique O-ring seal insures valve is bubble-tight to within 10% of set pressure. 1″ NPT and 1¼” NPT inlets available.

The Super-Chek® design has been proven over the last 15 years to be the standard for air compressor in-tank check valves. One-piece brass bodies, stainless steel springs, and glass-filled fluoropolymer poppets all add up to long term reliability, while the eight discharge holes insure quiet operation.

Valves may be disassembled for cleaning or repair. Valves are 100% tested for backflow leakage performance. 450 PSI max pressure, 400 deg. F max temperature.

These cast-brass check valves have been specifically designed for installation into air compressor discharge lines. Extra-heavy walled cast brass bodies, glass-filled fluoropolymer poppets, and stainless springs resist corrosion and insure long life.