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Threaded Connection

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Flanged Connection

Flanged Connection

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Part Number

M444

(Elaflex Part Number: DGC-M 80 SS)

Product GroupDry Gas Couplings
Dry Gas Couplings
Example Pictures Hose Unit (Coupler):
Example Pictures Tank Unit (Adapter):
Short DescriptionDGC
Self locking quick connect/disconnect coupling to EN 13760 / EN 13175, for the loading and unloading of liquefied petroleum gas LPG and various other media.
DescriptionHose unit with swivel, typically mounted on hose assemblies and loading arms for temporary connection to storage tanks and mobile transport units.
Tank unit without swivel, typically fix mounted as filling connector on storage tanks, mobile tanks, road tankers, rail tankers, containers and ship manifolds.
DN 25 as LPG fuelling connector for heavy duty vehicles to EN 13760.
DN 50 as LPG filling connector for trucks on liquid line or as vapor return on railcars to EN 13175 up to +80° C.
DN 80 as connector for railcars on liquid line to EN 13175.
CommentQuick and safe connection of hose assemblies and loading arms to mobile and stationary tanks, under pressure and with minimised liquid loss.
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.
PressureWorking pressure PN 25.
Temperature-40° C up to +80° C, depending on O-Ring material.
MaterialBody: stainless steel – depending on type/size 1.4401 (AISI 316), 1.4404 (AISI 316L), 1.4408 (CF-8M) or 1.4409 (CF-3M).
O-Rings: Viton® (FPM LT/FKM LT) – others on request.
Flat seal (for female parallel thread connections only): polyurethane – others on request.
Approvals / CertificatesDGC 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 ship (IMDG).
Specified as a fuelling connector for DME driven vehicles. Also suitable for other liquefied gases like ammonia, ethylene, propylene, butadiene and others.
TÜV TÜ.AGG 304-99, 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 349a - 349b
Brochure DGC-Couplings
Homepage DGC-Couplings
Application Photos DGC:
Animation DGC:
Type of CouplingFemale (Hose Unit, Coupler)
Product NameHose Unit
Part NumberM
Short DescriptionFemale (Hose Unit, Coupler)
DescriptionSelf locking quick connect/disconnect coupling to EN 13760 / EN 13175, for the loading and unloading of liquefied petroleum gas LPG and various other media.
Hose unit with swivel, typically mounted on hose assemblies and loading arms for temporary connection to storage tanks and mobile transport units.
CommentQuick and safe connection of hose assemblies and loading arms to mobile and stationary tanks, under pressure and with minimised liquid loss.
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 10.
Working pressure PN 25.
Temperature-40° C up to +80° C, depending on O-Ring material.
MaterialBody: stainless steel – depending on type/size 1.4401 (AISI 316), 1.4404 (AISI 316L), 1.4408 (CF-8M) or 1.4409 (CF-3M).
O-Rings: Viton® (FPM LT/FKM LT) – others on request.
Flat seal (for female parallel thread connections only): polyurethane – others on request.
Approvals / CertificatesDGC 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 ship (IMDG).
Specified as a fuelling connector for DME driven vehicles. Also suitable for other liquefied gases like ammonia, ethylene, propylene, butadiene and others.
TÜV TÜ.AGG 304-99, 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 349a - 349b
Brochure DGC-Couplings
Homepage DGC-Couplings
Nominal Diameter / Socket Diameter3" (Ø 119 mm)
Product Name3" (Ø 119 mm)
Part Number4
DescriptionE.g. for loading / unloading of tank trucks and rail cars
according to EN 13715.
CommentConnections: 3" in BSP, NPT and Flanged inlet.
Material Coupling and BodyStainless Steel 1.4408 (AISI 316)
Product NameStainless Steel 1.4408 (AISI 316)
Part Number44
Maximum Working Pressure25 bar
Test Pressure37,5 bar
Minimum Burst Pressure125 bar
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