HFT Series

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Screw connect flat face couplings

Construction ApplicationsDemolition Applications

Holmbury’s HFT Series screw connect couplings incorporate all of the benefits from the flat face design, whilst the screw connection strengthens the coupling and eliminates brinelling. Connection and disconnection can be undertaken with high residual pressure in male coupling. The HFT Series is an ideal solution for high pressure pulses and many other applications.
Connect Under Pressure TechConnect Under Pressure
Min Spill TechMin Spill
Carbon Steel Zinc Nickel Materials
Screw To Connect CouplingsHFT

Features

  • Screw connect design eliminates brinelling
  • Flat faces are easily wiped clean
  • Allows for minimal inclusion of air and contaminents during connection
  • Flat face design prevents fluid loss during disconnection
  • Bidirectional flow

Accessories

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

Construction

  • Carbon steel with zinc nickel plating (1200 hours with no red rust in salt spray tests)
  • Fitted with Nitrile seals

Applications

  • API 16D certification for blow out preventors (BOP) on oil & gas applications
  • Hydraulic attachments
  • Hammer circuits
  • High pressure pulse applications
  • Leak free environments
  • Construction plant, mobile equipment, general industrial, mining and agricultural industries

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.

0°

106°C 223°F

Nitrile

120°C 248°F

EPDM

200°C 392°F

Viton®

300°C 572°F

Kalrez®

0°

-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)