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1" (Ø 56 mm)

1" (Ø 56 mm)

For industrial process plant, road and rail tankers, IBC containers, Pharmaceutical and Petrochemical industries etc.

Additional Info
2" (Ø 70 mm)

2" (Ø 70 mm)

For industrial process plant, road and rail tankers, ISO containers, IBC containers, Pharmaceutical, Aviation fuel bunkering and Petrochemical industries or on any application where spillage needs to be minimized.

Additional Info
2½" (Ø 105 mm)

2½" (Ø 105 mm)

Recommended for road tanker bottom loading for a varity of fluids, ISO containers, Aviation fuel bunkering or on any application where product contamination and spillage needs to be minimized.

Additional Info
3" (Ø 119 mm)

3" (Ø 119 mm)

Similar to 2½", but where higher loading rates are required. Especially on rail tankers, marine tankers, ISO containers, Aviation fuel bunkering and related activities.

Additional Info
4" (Ø 164 mm)

4" (Ø 164 mm)

Recommended for loading/unloading of Road and Rail tanker, aviation refueller, ISO containers etc. Also for Offshore Supply Vessels, ship to shore transfer, ship to ship transfer and ship to rig transfer.

Additional Info
6" (Ø 238 mm)

6" (Ø 238 mm)

Recommended for marine bunkering, ship to shore transfer, ship to ship transfer and ship to rig transfer or on any application where spillage needs to be minimized.

Additional Info
8" (Ø 272 mm)

8" (Ø 272 mm)

Recommended for marine bunkering, ship to shore transfer, ship to ship transfer and ship to rig transfer or on any application where spillage needs to be minimized.

Additional Info

Part Number

T

(Elaflex Part Number: DDC-V)

Product GroupDry Disconnect Couplings
Dry Disconnect Couplings
Example Pictures Hose Unit (Coupler):
Example Pictures Tank Unit (Adapter):
Short DescriptionDDC
Self locking quick connect/disconnect coupling, to STANAG 3756, for liquid media.
DescriptionHose unit with swivel, typically mounted on hose assemblies and loading arms for temporary connection to storage tanks and mobile transport units, for loading and unloading.
Tank unit without swivel, typically fix mounted as filling connector on storage tanks, mobile tanks like IBC and ISO containers, road tankers, rail tank containers and ship manifolds.
CommentQuick and safe connection of hose assemblies and loading arms to mobile and stationary tanks, under pressure and with minimised liquid loss.
The standardised interface to STANAG 3756 with its bayonet coupling principle has been widely accepted in the industry. Both coupling parts are equipped with a flat poppet valve.
For the connection, the hose unit is pushed onto the tank unit and coupled / sealed by turning the coupler clockwise by 15 degrees. When the unit is turned by 100 degrees, the valves move into the tank unit so that the medium can flow. When a similar turn is made counter-clockwise, the flow is stopped and the coupler can be pulled off.
Sizes1" (DN 25) up to 8" (DN 200).
ConnectionsBSP/NPT thread, DIN/ANSI/TW/TTMA flange – others on request.
PressureCan be coupled up to 7 bar line pressure.
Working pressure:
Aluminium ≤ DN 50 = PN 16,
Aluminium ≥ DN 65 = PN 10 (PN 16 on request),
Brass/Gunmetal = PN 16,
Stainless steel, Hastelloy, Titan = PN 25,
PEEK, PVDF = PN 6.
Temperature-20° C up to +80° C;
fulfilment of larger temperature range -50° C up to +200° C is possible - depending on medium, coupling and sealing material.
MaterialBody: stainless steel (1.4401/1.4404, AISI 316 /316L, 1.4408/1.4409, CF-8M/CF-3M), aluminium or brass (up to 2") / bronze (from 2½") – others on request.
O-Rings: Viton® (FPM/FKM) – others on request.
Flat seal (for female parallel thread connections only): PTFE (stainless steel couplings), PU (alu / brass (bronze) couplings) – others on request.
Approvals / CertificatesDDC couplings fulfill the requirements of European Pressure Equipment Directive category 2 (for higher demand on request).
They are suitable for the use in potentially explosive atmosphere (ATEX) zone 1, approved for the transport of dangerous goods on road (ADR), by rail (RID) and by ship (IMDG), specified as a branch standard from European Chemical Industry (CEFIC) for handling of Ethylene Oxide/Propylene Oxide, Acrylic Monomers, Acrylonitrile, polymeric MDI/TDI and Vinyl Chloride.
TÜV TÜ.AGG 304-99, APRAGAZ File ref. 0302/P5832, Lloyd's Register 0038/ATEX/HAM064017,
TDT-UW-21/16, EAC TC No. RU Д-SE.MЮ62.B.02151
Product Sheet / Links
Overview Approvals
Page 345-346 (DDC-M)
Page 347-348 (DDC-V)
Brochure DDC-Couplings
Homepage DDC-Couplings
Application Photos DDC:
Animation DDC:
Type of CouplingMale (Tank Unit, Adapter)
Product NameTank Unit
Part NumberT
Short DescriptionMale (Tank Unit, Adapter)
DescriptionSelf locking quick connect/disconnect coupling, to STANAG 3756, for liquid media.
Tank unit without swivel, typically fix mounted as filling connector on storage tanks, mobile tanks like IBC and ISO containers, road tankers, rail tank containers and ship manifolds.
CommentQuick and safe connection of hose assemblies and loading arms to mobile and stationary tanks, under pressure and with minimised liquid loss.
The standardised interface to STANAG 3756 with its bayonet coupling principle has been widely accepted in the industry. Both coupling parts are equipped with a flat poppet valve.
For the connection, the hose unit is pushed onto the tank unit and coupled / sealed by turning the coupler clockwise by 15 degrees. When the unit is turned by 100 degrees, the valves move into the tank unit so that the medium can flow. When a similar turn is made counter-clockwise, the flow is stopped and the coupler can be pulled off.
Sizes1" (DN 25) up to 8" (DN 200).
ConnectionsBSP/NPT thread, DIN/ANSI/TW/TTMA flange – others on request.
PressureCan be coupled up to 7 bar line pressure.
Working pressure:
Aluminium ≤ DN 50 = PN 16,
Aluminium ≥ DN 65 = PN 10 (PN 16 on request),
Brass/Gunmetal = PN 16,
Stainless steel, Hastelloy, Titan = PN 25,
PEEK, PVDF = PN 6.
Temperature-20° C up to +80° C;
fulfilment of larger temperature range -50° C up to +200° C is possible - depending on medium, coupling and sealing material.
MaterialBody: stainless steel (1.4401/1.4404, AISI 316 /316L, 1.4408/1.4409, CF-8M/CF-3M), aluminium or brass (up to 2") / bronze (from 2½") – others on request.
O-Rings: Viton® (FPM/FKM) – others on request.
Flat seal (for female parallel thread connections only): PTFE (stainless steel couplings), PU (alu / brass (bronze) couplings) – others on request.
Approvals / CertificatesDDC couplings fulfill the requirements of European Pressure Equipment Directive category 2 (for higher demand on request).
They are suitable for the use in potentially explosive atmosphere (ATEX) zone 1, approved for the transport of dangerous goods on road (ADR), by rail (RID) and by ship (IMDG), specified as a branch standard from European Chemical Industry (CEFIC) for handling of Ethylene Oxide/Propylene Oxide, Acrylic Monomers, Acrylonitrile, polymeric MDI/TDI and Vinyl Chloride.
TÜV TÜ.AGG 304-99, APRAGAZ File ref. 0302/P5832, Lloyd's Register 0038/ATEX/HAM064017,
TDT-UW-21/16, EAC TC No. RU Д-SE.MЮ62.B.02151
Product Sheet / Links
Overview Approvals
Page 347-348 (DDC-V)
Brochure DDC-Couplings
Homepage DDC-Couplings
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