*** IN STOCK SHIPS TODAY *** BUYER CHOOSES SPRING FROM DROP DOWN MENU.***
FINAL SPRING PRESSURE MUST BE SET USING SHIMS WITH THE CHOSEN SPRING TO ACHIEVE DESIRED SPRING PRESSURE. DROP DOWN MENU SHOWS SPRING PRESSURE CAPABILITYS WITH SHIMS PER SPRING. THERE IS NO EXACT FORMULA FOR SHIMS AND SPRINGS TO EQUAL A PRESSURE WITHOUT SETTING THE SPRING WITH SHIMS, EACH SPRING IS SLIGHTLY DIFFERENT AS CHECK VALVE HOUSINGS HAVE A SLIGHT VARIANCE, SO RACER MUST HAVE THE ABILITY TO SET THEIR CHECK VALVE FOR OPTIMUM PERFORMANCE.
By changing the spring pressure in your check valve you control when the valve opens and closes.
Can be used in port or hi-speed check valve applications. Check out the spring chart on our Tech Support to help you decide what you need.