A direct spring-loaded pressure control unit that is controlled by the air reference pressure provided from the vehicle system. A sealed screw outside the air hose fitting provides closing time adjustment. A sealed screw is also used to bleed the unit of air.
200 psi (23.793 bar)
450 psi (31.034 bar)
Air pressure operated
Nominal bias (air pressure required above control pressure) — 25 psi (1.724 bar).
Bias increases to approximately 33 psi (2.276 bar) at flow rates up to 1,200 USgpm.
Fully open pressure drop
21 psi (1.448 bar) at 1,000 USgpm when mated to Model 60554 hydrant valve
2-5 seconds (adjustable)
5-10 seconds (no adjustment)
50 US gal. maximum at 1,000 US gpm
(Basic coupler) 29.0 lbs (13.154 kg)