Flanged Float Control - CFF18M-H2 | Cla-Val

Cla-Val CFF18M-H2 Flanged Float Control Valve

The Cla-Val CFF18M-H2 is a flanged float-operated control valve designed for fuel-water filter separator applications in marine fuel systems. Product documentation specifies use with AV-Gas, JP-5 Jet Fuel, and Diesel fuel-water filter separator applications. The CFF18M-H2 series is listed in the Cla-Val catalog as a Flanged Float Control for Filter Separators.

Functional Role

This float control valve is used for level regulation within fuel-water separator vessels. Its operation is based on the presence of water or separated phase inside the separator and can be integrated into automatic drain or fuel shutoff control schemes, depending on system requirements.

Technical Data

• Type: flanged float control
• Model: CFF18M-H2
• Related variants: CFF18MT-H2 (with tester), CFF19M-H2, CFF19MT-H2, CFF21M-H2
• Media: Av-Gas, JP-5, Diesel Fuel
• System: fuel-water filter/separators
• Connection: Flanged (CFF series)
• Application standard: MIL-F-15618 (SHIPS), Class 1 with automatic drain & fuel shutoff controls
• Piping material: sil-brazed nickel-copper pipe

Selection Considerations

Selection requires verification of separator type, fuel compatibility, installation location, actuation level, tester requirement, and compliance with fuel system specifications. For retrofit, check flange compatibility, available float travel space, and tester access.

Maintenance

Routine inspection should include free float movement, chamber cleanliness, flange sealing integrity, nickel-copper piping condition, and functional testing under actual separator conditions. For fuels with water, sediment, or microbial contamination, more frequent cleaning is recommended as deposits may affect actuation point.