Hose End Regulators

The Cla-Val Model 343GF/348GF Hose End Pressure Control Valve (HEPCV) is a direct-acting pressure regulator.  It is designed for use in commercial aircraft refueling to protect the receiving aircraft from excess pressure and damage due to pressure surges.  It is bolted to a Cla-Val Model 347GF Commercial Aircraft Refueling Nozzle at the end of a delivery hose.

343GF
Hose End Regulator