112142 Parker RS SR4 Safety Relief Valve 3/4" x 1-1/2" 175 psi

SR safety relief valves are designed and constructed to meet the requirements of Section VIII ASME Boiler and Pressure Vessel Code and ANSI/ASHRAE 15-2007 safety code for mechanical refrigeration. The SR safety relief valve meets the requirements for new installation and municipal ordinances. Precision machined moving parts of stainless steel and a PTFE disc prevent sticking due to corrosion or cold welding, to assure valve opening at the set pressure long after installation.

Product Features:

• SR Series Designed to meet ASHRAE 15 2001 requirements for new system installations.
• Certified by the National Board of Boilers and Pressure Vessel Inspectors.
• All Stainless Steel Internal Parts.
• PTFE Seat.
• Accurate and Dependable.
• Pressure settings 150 psi to 400 psi.