IndustrialFittings26thEdition

C300 EXTREME PRESSURE COUPLINGS

C300 thread-to-connect couplings are designed for high pressure applications found on torque wrenches, hydraulic jacks, and other construction and demolition equipment. Couplings are made from zinc-plated carbon steel and come standard with polyurethane and buna-N (Nitrile) seals. They feature ball-style valves, allow for bidirectional flow, and can be connected with low residual pressure in the hydraulic circuit. The thread-to-connect design eliminates brinelling. Temperature Range : -30°C (-22°F) to 105°C (221°F). Interchange : Parker 3000, Enerpac C604, Faster PVV, Holmbury PSB.

C300KM Series high pressure poppet valve couplings are primarily used on bolt tensioners, hydraulic jacks, hydraulic hammers, and other high pressure applications. The carbon steel construction with black zinc-nickel plating offers superior corrosion resistance. These couplings are rated to 21750 psi, come standard with buna-N (Nitrile) seals, and allow for bidirectional flow. Temperature Range : -40°C (-40°F) to 105°C (221°F). Interchange : Holmbury KM.

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Quick Couplings

Part

Body Male Working Size NPTF Pressure

Part

Body Female Working Size NPTF Pressure

Number

Number

C301… PLATED STEEL COUPLER

C301KM... CARBON STEEL COUPLER

10440 psi

21750 psi

1 ⁄ 4 " 3 ⁄ 8 "

1 ⁄ 4 " 3 ⁄ 8 "

C301-04 C301-06

C301KM-02-04

1 ⁄ 8 "

1 ⁄ 4 "

10440

C301F… PLATED STEEL FEMALE NPT COUPLER Female NPTF C301F-06 3 ⁄ 8 " 3 ⁄ 8 " 10440

C302KM... CARBON STEEL NIPPLE

21750

C302KM-02-04

1 ⁄ 8 "

1 ⁄ 4 "

C302… PLATED STEEL NIPPLE

10440 10440

1 ⁄ 4 " 3 ⁄ 8 "

1 ⁄ 4 " 3 ⁄ 8 "

C302-04 C302-06

C308… DUST PLUG

Material

1 ⁄ 4 " Steel 3 ⁄ 8 " Steel

C308-04 C308-06

C309… DUST CAP

1 ⁄ 4 " Steel 3 ⁄ 8 " Steel

C309-04 C309-06

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