Dry Gas Coupling, 4 inch Hose unit / Coupler

Dry Gas Couplings

The Dry Gas Coupling has been developed for a safe and quick connection and disconnection of hoses and loading arms to tank trucks, rail tankers and tank containers. During connection and after disconnection there is no spillage.

Mann-Tek Dry Gas Coupling for safe handling of LPG - in liquid or vapor phases

This increases safety in the loading process of hazardous fluids.
Suitable for handling a range of LPG applications - Propane and Butane but also for other applications with similar requirements the Dry Gas Coupling is useful.
The robust design, easy servicing and high level of security assures safe and frequent use on a long term basis. This protects the environment and the media handled, reduces the risk of accidents and saves money.

Handling of Gas (LPG) with Dr Gas Couplings

Heavy vehicle filling 1"
Loading/unloading of bobtails 2"
Loading/unloading of tank trucks 2"-3"
Loading/unloading of rail cars 3"
Loading/unloading ship to shore 3"-4"


Dry Gas Couplings are used at liquid or vapor transfer points where you do not want product loss. Using Dry Gas couplings will reduce the hazards typically found when handling/processing LPG.

  • Spillfree handling for loading and unloading tank trucks, rail tankers and tank containers.
  • Minimization spillage and product loss keeps the environment free from Hazardous Vapors and Liquids.
  • “Easy to Use” - design saves time and minimises health risks.
  • Reliability and easy servicing saves your investment.
  • Approved for safe handling of LPG - Propane (CAS 74-98-6, UN 1978) and Butane (CAS 106-97-8, UN1011). UN-classification 2.1 and similar applications.
  • 3” and 4” is compatible with existing Dry Disconnect / Dry Break Couplings according to STANAG 3756.
  • The 1” is a heavy duty vehicle filling nozzle according to EN 13760.
  • Approvals according to the European Directives PED and ATEX and the international requirements ADR, RID, IMDG and TDT.

Technical data, Dry Gas Couplings

Size: 1”, 2”, 3” and 4”

Materials: Gunmetal / Brass and Stainless Steel 316L SS-EN 10 272-1.4404+AT
Seal: FPM (Viton) or NBR (Nitrile) according to EN549 B2/H3 other materials on request

Temperature range: -20ºC (-4ºF ) to 80ºC (176ºF) (larger temperature range from -50ºC (-58ºF ) up to +200ºC (392 ºF ) is possible, depending on Seal material)

Maximum Working pressure: MWP PN 25. MAWP 300 psi

Test Pressure: 38 bar 450 psi

Min. Burst Pressure: 125 bar / 1813 psi

Safety Factor: 5:1

End Connections: Female and Male BSP / NPT, ACME, Witworth threads and flanged DIN and ANSI.

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