With our Flow Calculator you determine the flow velocity, the flow rate and the pressure loss in relation to the internal pipe diameter and nominal diameter.

Piping velocity calculatormetric

The Prime Rite automatic pressure drop activated trap primer valve will prime up to 2 floor drains with our patented distribution DU-U and DU-4 units. System operating range is 20 psi minimum to 80 psi (138 to 552 kpa) maximum. The valve requires a 3 psi (21 kpa) pressure drop across the valve to activate and will deliver a metered amount of water to the floor drain. Trap primer is to be connected to a cold water supply only   Constructed of 693 brass, EPDM E70 O-rings, Dow #7 Silicone, #60 stainless steel mesh screen. NSF-372 Lead Free Certified

The Prime Rite automatic pressure drop activated trap primer valve will prime up to 2 floor drains with our patented distribution DU-U and DU-4 units.