Fluiseal Drybreak Coupling

Fluiseal drybreak couplings applications:

• Road tanker loading and unloading
• Rail tanker loading and unloading
• Supply vessel to drilling rig
• Process product transfer.

Typical products handled include: Liquefied gases: LPG, butane, propane, propylene

• Oils: crude, diesel, fuel oils, Jet A1
• Chemicals: ammonia, methanol, aromatics, ethylene & propylene, VCM, alcohols & acids, refrigerants, forane
• Speciality: hydraulic oils, inks, paints, solvents, locomotive fuelling, helicopter fuelling, aircraft de-icing fluids.

• Sizes
  2″, 3″ and 4″ or metric equivalents.
• Main body construction
  Standard material stainless steel 316.
• Connections
  Threaded and flanged to most standards including ANSI, BS, DIN, ISO and JIS.
• Seals
  Viton®, Buna, PTFE, Polyurethane, Kalrez®, Chemraz®, others on request. All trademarks acknowledged.
• Design
  Coupling designed for bi-directional flow.
• Temperature range
  -50˚C to 100˚C.
• Pressure tested
  Pressure tested to 34bar.

Q: What is a drybreak coupling?

A: A drybreak coupling usually comprises a female (hose end) fitting and a male (tanker fitting) that are connected/disconnected on a regular basis to form a liquid and pressure tight coupling. Drybreak couplings generally have a valve arrangement that shuts down the liquid flow prior to the disconnection of the male and female couplings. More sophisticated drybreak couplings such as the Alpha Fluiseal are fully interlocked to close down the product flow prior to coupling disconnection.