The most popular of all dry disconnect couplings. DDC couplings (Dry Disconnect Coupling) is a standard industrial version. They are compatible with the couplings of many other manufacturers. The coupler (hose unit) and the adapter (tank unit) have piston valves. To connect, the coupler must be pushed onto the adapter and so engaged, the rotary head of the coupling must be turned. Available in a size range from 1″ to 8″ (DN25 to DN200), with the characteristic outer diameter of the plug (56, 70, 105, 119, 164, 238 and 272 mm).
DDC couplings comply with ATEX, ADR, RID, TDT, Pressure Equipment Directive 97/23/EC. The couplings DN50 ÷ DN100 conform to NATO STANAG 3756 standard.
DDC couplings are made of: aluminium, brass, AISI 316 stainless steel, Duplex steel, PEEK, PVDF, Hastelloy, titanium with the appropriate sealing. Working pressure depends on the diameter and material of the coupling and ranges from 6 to 25 bar. Connection: BSP female thread, PN, ASA, TTMA flanges.
DGC couplings (Dry Gas Coupling) are intended for gases, especially LPG, in sizes ranging from 1″ to 8″.
DAC couplings (Dry Aviation Coupling) 2.1/2″ (DN65) designed for jet fuel loading and unloading, comply with NATO STANAG 3105 and ISO 45 standards.
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