Hand wheel for easy adjustment within spring ranges.
The Kunkle 19 is a non-code bronze liquid relief
valve designed for overpressure relief of
pumps, tanks, lines and hydraulic systems.
A common application in the water industry is
to regulate system pressure while pumps must
be run continuously during periods of bypass
and maintenance on water tanks. Excess water
capacity from the pumps is diverted through
the valve to provide constant system pressure.
The valve disc is designed to re-seat when system
pressure is relieved. To minimize water
leakage we recommend the set pressure be 10-
15% above normal system operating pressure
or 5 psi, whichever is greater.
The valve body and disc are made of bronze and the spring is stainless
steel. A feature of the Kunkle 19 is it can be disassembled for
inspection without removing it from the piping. Inlet connection
is NPT(M) and the discharge or outlet port is NPT(F). Rated for
service up to 300 psi and 406°F.
When installing a Kunkle 19 valve use Teflon® tape, not pipe dope,
and mount in a vertical, upward position.
When ordering, from the chart below select the spring pressure
range and the actual pressure setting within that range which is
best for your application. That setting is what will appear on the