Mann-Tek Dry Disconnect

They are in use in installations all over the world, especially where certification is a pre-requisite and are certified by TÜV, Apragaz, Veritas, TDT, plus regionally required approvals.

DDCouplings® are CE-branded and produced according to NATO standard STANAG 3756 and can be delivered with Atofina General Technical Documents compliance, if this is specified by the customer.

Size

The couplings are available in sizes from 3/4” (DN 20) to 4” (DN 100) with BSP, NPT and S60x6 threads. Other threads are available on request. The tank units are also available in flanged connections (DIN, ASA, TW, TTMA, EN 1092-1:2001).

Materials

Aluminium, Brass/Gunmetal, Stainless Steel, Hastelloy C and PEEK.

Seals

FPM (Viton®), EPDM, Chemraz®, NBR (Nitrile) Kalrez®.

Working Pressure

PN10 – PN25

Selectivity – Avoid Mixing Products

To avoid product contamination caused by connecting a hose unit to the wrong tank unit, selective versions of the hose and tank units are available. Each unit has a number of selective positions, designated by a coded part number according to the coupling size – specify when placing order.

Interchangeability

Compatibility with other existing brands according to NATO STANAG 3756 and ATOFINA SGM 2049:TUY.C

Special Models

With integrated break-away, pressure relief valve etc. on request.

• 

  Unique Design

  Give Several Advantages

  Easy to Handle

  • Push and turn – free flow
  • Turn and pull – closed

  Time Saving

  • No need to drain hoses or pipe systems

  Economical

  • No loss or spillage of liquids at connection or disconnection

  Safe

  • The valve opens as the valve is coupled together

  Environmentally Friendly

  • Accidental spillage eliminated

  Reliability

  • No loss or spillage at connection or disconnection

  Mann-Tek Couplings should be used at transfer points for fluids, gases or bulk powders, where spills can be costly and hazardous. They are especially needed in areas of zero tolerance spillage when your product:

  • is of high value
  • requires costly environmental methods of cleaning up in case of spillage
  • is expensive to reprocess or dispose of
  • is hazardous to the environment
  • can cause a health risk
  • is prone to accidental spillage and product loss

  DDCouplings® are designed for quick and spill free connection and disconnection of hoses and pipelines. They are used by producers of ink, adhesives, fatty acids, pharmaceuticals, liquid soaps, petroleum, chemicals, agricultural and a wide variety of caustic products and speciality acids.

How it Works

The Coupling Function

Reliable Combinations of Materials

Couplings are designed and built to have resistance to the media transferred through them. Therefore, all DDCouplings® are tailored to the requirements of each application, ensuring that all materials of the body and internal working parts are fully resistant.

DDCouplings® Stainless Steel

All wetted parts in Stainless Steel and Hastelloy.

Typical applications:

• Chemical industry
• Pharmaceutical industry
• Waste transfer

DDCouplings® Aluminium

All wetted parts in Aluminium and Stainless Steel.

Typical applications:

• Military use
• Petrol handling
• Aviation fuel

strong>DDCouplings® Brass/Gunmetal

All wetted parts in Brass/Gunmetal and Stainless Steel.

Typical applications:

• Marine refuelling
• Petrol handling
• Tanker loading

DDCouplings® Hastelloy

All wetted parts in Hastelloy.

Typical applications:

• Hydrochloric acid

Application Areas

Mann-Tek DDCouplings® are used in a wide range of applications from tanker loading to aviation bunkering.

Oil & Chemical

• Bulk loading/discharge
• Tanker top/bottom loading
• Loading arms
• Exchange manifolds
• Blending pits
• Bunkering
• Rail car outlets
• Paints and inks
• In process products transfer
• Rail locomotive refuelling

Marine

• Ship to shore transfer
• Ship to ship transfer
• Ship to rig transfer
• Well head material supply
• Rig gas exchange
• Rig temporary vent lines
• Ship manifold exchange
• Marine refuelling

Specialized

• Bulk powder transfer
  (fine non-abrasive only)
• Nuclear coolant and gas
• Aviation bunkering
• Natural gas
• Brewery finished products
• Food feedstock
• Pharmaceutical feedstock
• Hazardous waste transfer
• IBC container outlets
• Bitumen transfer
• ISO retrofit and new build
• Refuelling race cars