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Product Group: Dry 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:
2
Type of Coupling: Female (Hose Unit, Coupler)
Product NameHose Unit
Part NumberS
Short DescriptionFemale (Hose Unit, Coupler)
DescriptionSelf locking quick connect/disconnect coupling, to STANAG 3756, for liquid media.
Hose 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.
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)
Brochure DDC-Couplings
Homepage DDC-Couplings
3
Nominal Diameter / Socket Diameter: 2" (Ø 70 mm)
Product Name2" (Ø 70 mm)
Part Number2
DescriptionFor 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.
CommentConnections: 1½" and 2" in BSP, NPT and Flanged inlet.
4
Body Material
Stainless Steel 1.4408 (AISI 316)
Stainless Steel 1.4408 (AISI 316)
Pressure
Max. Working25 bar
Min. Burst125 bar
Test Pressure37,5 bar
Additional Info
Aluminium
Aluminium
Pressure
Max. Working16 bar
Min. Burst80 bar
Test Pressure24 bar
Additional Info
Brass
Brass
Pressure
Max. Working16 bar
Min. Burst80 bar
Test Pressure24 bar
Additional Info

Other

Titan
Titan
Pressure
Max. Working25 bar
Min. Burst125 bar
Test Pressure37,5 bar
Additional Info
Hastelloy / PVDF
Hastelloy / PVDF
Pressure
Max. Working25 bar
Min. Burst125 bar
Test Pressure37,5 bar
Additional Info
PEEK
PEEK
Pressure
Max. Working6 bar
Min. Burst30 bar
Test Pressure9 bar
Additional Info
5Connection
6Connection Detail
7O-Rings
8Options: Special Types
9Options: Handle
10Options: Selectivity
11Accessories
12Order No.

Part Number

S2...

(Elaflex Part Number: DDC-M 50...)

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 CouplingFemale (Hose Unit, Coupler)
Product NameHose Unit
Part NumberS
Short DescriptionFemale (Hose Unit, Coupler)
DescriptionSelf locking quick connect/disconnect coupling, to STANAG 3756, for liquid media.
Hose 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.
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)
Brochure DDC-Couplings
Homepage DDC-Couplings
Nominal Diameter / Socket Diameter2" (Ø 70 mm)
Product Name2" (Ø 70 mm)
Part Number2
DescriptionFor 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.
CommentConnections: 1½" and 2" in BSP, NPT and Flanged inlet.
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