F Series

Connect under pressure high flow couplings with a safety locking sleeve

Construction ApplicationsIndustrial ApplicationsForestry Applications

Holmbury’s F Series high flow safety couplings offer three important benefits; high flow, connection under pressure and a safety locking mechanism to prevent accidental disconnection.
Connect Under Pressure TechConnect Under Pressure
High Flow TechHigh Flow
Carbon Steel Zinc Nickel Materials

Features

  • High flow rates
  • Optional pressure eliminator allows connection with residual pressure in the hydraulic circuit (Not applicable for size 06)
  • Low pressure drop characteristics
  • Safety locking ring to avoid accidental disconnection
  • Female half has double ‘O’ ring sealing arrangement
  • Bidirectional flow












Accessories

Dust caps, plugs and seal kits are available for the F Series











Construction

  • Carbon steel with zinc nickel plating (1200 hours with no red rust in salt spray tests)
  • Fitted with Nitrile seals
  • Also available in stainless steel (see FS Series)












Applications

  • Mobile plant
  • General industrial
  • Forestry equipment












AVAILABLE SEALS AND TEMPERATURE RANGE

All carbon steel products have Nitrile Butadiene Rubber seals fitted as standard. All stainless steel products have Fluoro-elastomer Rubber (Viton®) seals fitted as standard. Special seal materials available on request.

106°C 223°F

Nitrile

120°C 248°F

EPDM

200°C 392°F

Viton®

300°C 572°F

Kalrez®

-20°C -4°F

Viton®

-25°C -13°F

Kalrez®

-40°C -40°F

Nitrile

-50°C -58°F

EPDM

Abbreviation Trade Name Chemical Name Min Temp. Max Temp.
NBR XNBR Chemigum®, Hycar8, Breon®, Butakon®, Butacril®, Buna-N®, Perbunan®, Paracril®, Krynac®, Europrene-N®, Nipol® Nitrile Butadiene Rubber Carboxylated Nitrile Rubber -40°C (-40°F) 106°C (223°F)
FKM (FPM) Dai-el®, Fluorel®, Tecnoflon®, Viton® Fluoro-elastomer Rubber -20°C (-4°F) 200°C (392°F)
EPR EPDM Buna-AP®, Dufral®, Epsyn®, Nordel®, Epcar8, Keltan®, Royalene®, Polysar-EPDM® Ethylene Propylene Copolymer Ethylene Propylene Terpolymer -50°C (-58°F) 120°C (248°F)
FVMQ Silastic 1S®, FSE® Fluorosilicone Rubber -65°C (-85°F) 170°C (338°F)
FFKM Perlast®, Kalrez®, Chemraz®, Kaflon® Perfluoroelastomer -25°C (-13°F) 300°C (572°F)