The R-K SLB (Super Low Back Pressure/ Relief Valve) series is designed to protect piping and/or system from pressure changes where quick relief of excess pressure is required. Prevents pumps from dead head, over pressure, pressure surges, and maintains back pressure in closed loop systems. This valve is known as a POPUP, BY-PASS, and BACK PRESSURE Valve.. Adjustable screw and lock-nut allows easy and accurate pre-set relief pressure. Teflon diaphragm. No metal contact with fluid. Small pressure differential band from cracking point to fully open, and from wide open to close. Top entry makes in-line maintenance quick and easy Ideal for Pharmaceutical, Biomedical, DI water, harsh chemical, and other high purity applications
