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MannTek Dry Disconnect Couplings

MannTek Dry Disconnect (Drybreak) Couplings provide a safe, reliable solution for spill-free fluid transfer in tanker loading, chemical handling, and food or pharmaceutical processing. Manufactured to the STANAG 3756 international standard, MannTek couplings are fully compatible with other bayonet-style systems such as Todo and Avery Hardoll.

The range includes hose units, tank units, and protective accessories, designed to minimise product loss, improve operator safety, and prevent contamination in critical transfer applications.

For any enquiries, please contact our sales team by telephone 01642 244160 or email info@integraflex.co.uk

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MannTek Dry Disconnect Couplings (DDC)s

What are MannTek Dry Disconnect Couplings (DDC)s

MannTek Dry Disconnect Couplings (DDC) are precision-engineered quick-connect/disconnect fluid transfer couplings designed to deliver safe, spill-free connections and disconnections in demanding industrial environments. These couplings feature self-sealing internal valves that automatically close when disconnected, preventing product loss, environmental contamination and operator exposure to hazardous liquids or vapours. They are manufactured to the STANAG 3756 bayonet standard, ensuring compatibility with other bayonet-style dry disconnect systems on the market.

Dry disconnect technology is ideal where reducing spill risk and minimising downtime are critical, for example in chemical handling, tanker loading, fuel transfer or sensitive process operations because they shut off flow instantly on disconnect without draining lines.

Types of MannTek Dry Disconnect Couplings (DDC)

MannTek DDCs come in a range of configurations to suit different installation and transfer requirements:

1. Hose Units (Female)

  • Designed to mount on hoses or loading arms.
  • Incorporates a self-sealing valve that stays closed until connected.
  • Often features an integrated 360° swivel to reduce hose twist and improve handling.

2. Tank Units (Male)

  • Mounted on storage tanks, road/rail tankers or process outlets.
  • Interfaces with hose units to enable a dry, secure connection.
  • Available with threaded or flanged connections to suit site requirements.

3. Accessories & Protective Components

  • Caps and plaugs protect the coupling faces when not in use.
  • Dust caps and pressure caps help maintain the cleanliness and safety compliance during transportation and storage.

Applications for MannTek Dry Disconnect Couplings (DDC)s

MannTek DDCs are used across sectors where spill reduction, operator safety, and contamination control are essential. Typical applications include:

  • Industrial process plants – safe transfer of liquids in manufacturing.
  • Road and rail tanker loading/unloading – minimises emissions and product loss.
  • Chemical handling and storage – suited for aggressive chemicals and solvents.
  • Fuel transfer operations – aviation refuelling, marine bunkering and petrol/diesel delivery.
  • ISO and IBC container transfers – enables dry break transfer to reduce contamination.
  • Pharmaceutical & food processing – hygienic variants available where cleanliness is critical.

Because of their automatic shut-off valves, they are particularly valuable in hazardous environments, where accidental disconnection or spillage could pose safety, environmental or regulatory risks.

Choosing an MannTek Dry Disconnect Couplings (DDC)

To select the correct MannTek Dry Disconnect Coupling for your application, consider the following:

  1. Fluid Type & Compatibility
  2. Size & Connection Standard
  3. Operating Conditions
  4. Selectivity & Safety Features
  5. Compliance Standards

If you are unsure on which MannTek Couplings you require, please reach out to our team by telephone 01642 244160 or email info@integraflex.co.uk