Dry Disconnect Couplings
Mann Tek Dry Disconnect Couplings are used for handling and transfer of liquids, gases and bulk powder in an economical, safe and environmental friendly way. Dry Disconnect Couplings are available in sizes from 3/4” up to 6” and in a wide range of materials and seals to be the given choice for almost any application.
The self sealing design of the couplings guarantees both the highest level of safety and also the quickest way of connecting and disconnecting.
The principle of operation is similary for all types of Mann Tek Couplings
To connect
Push and Turn
To disconnect
Turn and Pull
The couplings are available with BSP- and NPTthreads in sizes 3/4" (DN 20) to 6" (DN 150). Other threads are available on request (S60X6, Acme etc.). The tank units and Hose units are also available in flanged connections (DIN, ANSI, TW, TTMA, EN 1092-1:2001).
Aluminium, Brass/Gunmetal, Stainless Steel, Hastelloy C and PEEK. Other materials on request.
FPM (Viton®), EPDM, Chemraz®, Kalrez®, NBR (Nitrile). Other materials on request.
MWP PN 10/16/25.
MAWP 150/300 psi
15/24/38 bar
225/450 psi
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.
All DDCouplings® have electrical conductivity (<10 ohms).
Compatibility with other existing brands according to NATO STANAG 3756 and ATOFINA SGM 2049.TUY.C.
With integrated break-away, pressure relief valve, etc. on request.
This system dissipates trapped fluid pressure into hose coupler without spillage, to allow easy connection.
Trapped liquid in Tank Unit
Open pressure relief valve
Pressure expands into Hose Unit
Open without pressure
Full flow
2", 3" and 4" Dry Disconnect Couplings for transfer of liquids from manufacturing plants to RTC such as Ammonia, Acrylonitrile, Propylene Oxide, Ethylene Oxide, Benzene, Ethanol, Jet fuel e.t.c.
The RTC´s are (off)loaded by loading arms or hoses equipped with Dry Disconnect Coupling Hose units. Size 1" for sampling, 2" for vapour recovery and 3" or 4" for liquid lines.
Most common material used is Stainless Steel with a wide variety of seals.
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