Aviation Single Point Adapter type- 340GF | Cla-Val

Cla-Val 340GF Single Point Pressure Fuel Servicing Adapter

The Cla-Val 340GF is a single-point pressure fueling adapter designed for interface with underwing refueling nozzles and hydrant couplers. It is specified for use in military refueling tank trucks, fueling support vehicles, hydrant systems, fixed aviation fuel pipework, and tank farms. Design and construction comply with MIL-A-25896 Rev. E and MS24484-5 standards.

Functional Role

This adapter provides the mechanical interface between fueling equipment and the single-point bayonet connection. Nominal diameter is 2.5”, with a 2.5” single point bayonet coupling interface. Compatible media include refined petroleum products such as aviation fuel, subject to material compatibility verification.

Operating Temperatures and Conditions

• Fuel temperature: -55 °C to +93 °C
• Ambient temperature: -55 °C to +177 °C
• Inlet: threaded or flanged, depending on variant
• Connection configurations: NPT, ISO 7/1-Rp, ANSI 150 lb flange, TTMA housing options

Construction Materials

Body: investment cast stainless steel 17-4PH per AMS 5355, passivated. Poppet assembly and spider: investment cast aluminum A356T6. Spring: stainless steel 17-7PH per AMS 5763. Fasteners: corrosion-resistant steel per AMS 5737. Sealing: fluorosilicone elastomer bonded to poppet.

Connection Options

Available variants:

• 2.5” NPT threaded
• ISO 7/1-Rp 2½ threaded
• 2”, 2.5”, 3”, 4” ANSI 150 lb flange
• 3” and 4” TTMA mounting

Typical Applications

• Underwing pressure refueling
• Hydrant fueling systems
• Refueling tank trucks
• Fixed aviation fuel pipework
• Fuel support vehicles and tank farms

FAQ

Compatible nozzles:
Interfaces with underwing fueling nozzles and hydrant couplers using MS24484-5 interface.

Selection considerations:
Verify inlet connection type, flange pattern, fuel temperature range, nozzle/coupler compatibility, and compliance with MIL-A-25896 or MS24484-5 requirements.