The model T166 is a moderate to high pressure build up valve with smooth-acting flow control. It offers bypass protection for pumps with capacities ranging from 30 – 100 gpm (6.8 – 22.7 m3/hr). Unlike the model B177, the model T166 modulates the flow by opening gradually as pressure builds up and bypasses the excess capacity smoothly and silently back to the supply tank. It also has a continuous internal bleed that assists in eliminating vapors.
Typical application: Commonly used with medium capacity truck and stationary pumps used to fill a wide range of tank sizes.
Connections: 1-1/4” or 1-1/2” inlet & outlet
Differential pressure range: 25 – 225 psi (1.7 – 15.5 bar)
Maximum working pressure: 400 psig (27.6 bar g)
Capacities: up to 78 gpm (295 l/min)