1 4 npt safety valve supplier

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.

1/4" ASME safety valves are manufactured to ASME standards and certified by the national board of boiler and pressure vessel inspectors. Valves are interchangeable with all other ASME valves of same size and pressure. Valve resets after pressure drops 50%.

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.

Distributor of hydraulic press safety, quick opening safety, rotary and safety valves. Amerigear®, Boston Gear®, Carlisle®, DeMag®, Desch® and IMI Norgren®, pneumatic, double action, quick release and flow control valves also provided. Repair and preventative maintenance services are offered. Value added services such as custom barcoding, CAD capabilities, OEM assembly, plant surveys and third party logistics are also available. Serves the metal processing, metal service center, paper mill and paper converting, canning, grinding, commercial laundry, marine, oil and gas and material handling industries. Vendor managed inventory (VMI) programs available. Kanban delivery.

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.

Shipping Policy Online orders of $250 or more, and offline orders of $1000 or more, will ship for FREE within the contiguous United States-some exceptions apply.

Outside the contiguous United States, a 5% discount will be given on orders shipping to Alaska, Hawaii, US Virgin Islands (St. Croix, St. Thomas, St. John, and the Water Island), Puerto Rico, and Guam. All other orders are shipped FOB from a Northern Safety & Industrial warehouse, unless otherwise specified

Online orders less than $250, and offline orders less than $1000, will be charged applicable shipping and handling rates based on estimated package weight Additional charges may apply to your order and can include freight on drop ship products, package dimensions, weight, and surcharges. The total of the products on your order will count toward our free shipping policy

Valve Check Inc. is a manufacture of high-quality check valves offered in a variety of sizes ranging from 1/8, 1/4, 1/2, 3/4, 1 inch though 2 inch and up to 4" NPT. Configurations are offered in Male x Male, Male x Female, Female x Male, and Female x Female.

Valve Check specializes in manufacturing the lowest pressure drop check valves and offers the highest flow check valves of any manufacturer. Pressures range from low pressure .5 psi to 500 psi high pressure check valves.