Description Key Features • Meets all requirements of the EI and API 3rd Edition recommendations • The Meggitt (North Hollywood), Inc. Fuelling Product CCMY8500M3 Series EI 1584 3rd Edition Pit Coupler is a 4-inch unit designed for use with aviation kerosene and gasoline on airport hydrant systems and can be supplied with selectivity if required. • The coupler combines the Meggitt F251A 4-Inch API 3rd edition coupler with the CCMZ7300M3 pressure control elbow (not as pictured) • The coupler incorporates a manually operated poppet valve which is interlocked so that the valve cannot be opened if the coupler is not connected to an API Adapter. Conversely, the coupler cannot be disconnected when the poppet valve is in the open position • The fitting of the deadman pressure control valve allows a constant delivery pressure to be maintained at varying flow rates. The pressure control valve is of the direct pressure feedback type. The valve works on the balanced diaphragm principle where the valve senses downstream pressure.
API/EI SPEC 1584 ADD-2007 four-inch hydrant system components and arrangements third edition. The Model 353GF Pressure Control. Any 4 inch API style hydrant pit valve. • Complies with EI Specification 1584 Third Edition.
The fuel pressure on one side of a diaphragm is balanced by air pressure on the other side keeping the valve in the required position. Incorporated within the valve is an emergency “deadman” shut off feature which may be used to start and stop product flow.
General This publication specifies dimensions, coupling action, activation, and other requirements to achieve the necessary operational requirements and full interchangeability between components from manufacturers of hydrant pit valve assemblies and couplers. It also includes requirements for other optional features which component manufacturers may be requested to provide by purchasers. The performance specifications are for equipment intended for systems in aviation turbine fuel service. Quantum Fx Rem 100 Manual. Dm 441b Service Manual here. They do not apply to aviation gasoline (Avgas).