Flat-face quick disconnect coupling

GATHER’s flat-face quick disconnect couplings of the DBG series shut off on both sides and can be operated with one hand. They are designed in such a way that no liquids escape when disconnected and no air pockets enter the pipe system when connected. The design of their internal structure allows inline cleaning CIP (Cleaning in Place).

All components are sufficiently washed around, product adhesions are completely removed. The pressure drop in the quick disconnect coupling is very low, as the flushability is achieved by its inner contour which ensures a favourable flow. All seals are located on the inside, which means increased operational safety.

• Dry-break, robust and safe for every application
• DBG series, DN 4 to DN 65
• Over 500,000 coupling cycles
• The price cutter made of simple, alloyed steel

Flat-face sterile coupling

Principle: First seal, then release the flow! During the coupling process, the ring valve of the socket and the flat valve of the nipple push against each other. Before the valves release the flow, the interior is shut-off against the environment. The dead space-free design prevents air inclusions when connecting and drip losses when disconnecting.

The robust DBG series represents the top model in its market with over ½ million coupling cycles.

• Dry-break, robust and safe for every application
• Especially in the pharmaceutical industry, Ra <= 0,8 µm
• Special product line within the DBG series, DN 6 to 40
• Unique in its class

Flat-face tank coupling

Shut-off design in both sides, dry-break and capable of connecting under residual pressure

The hose couplings of the DBG SV series have self-closing shut-off valves. When disconnecting, there are no liquid leakages from the hose and container, no air or dirt enters the line system when connecting. These dry-break hose couplings offer a high degree of safety during refuelling, filling and decanting, because despite frequent coupling, environmental damage or hazards to persons due to leaking liquids are excluded. The liquids do not come into contact with the ambient air. Coupling and uncoupling is very easy and smooth, even if the lines are under residual pressure.

Technical data

• Materials: Stainless steel (1.4404, 1.4021), Hastelloy®, Titanium
• Seals*: FKM, EPDM, FFKM, FVMQ, NBR, CR et al. (also FDA-compliant)
• Temperature range: -55 up to +300°C (according to seal type)

Dry-break coupling under pressure

The special feature of the DBG-CUP is its possibility to connect a pipe with a hose without pressure relief, whereas both of them can be under pressure. The series owes this property to the unique CUP SYSTEM®. The CUP valve is designed in such a way that the system pressure has hardly any influence on the coupling force.

• Special series DBG-CUP, DN 12 to 25
• Dry-break, robust and safe for every application
• CUP SYSTEM® – connection under pressure
• Unique in its class

Original Hansen double shut-off hydraulic coupling

Double shut-off design (single shut-off or in both halves possible)

The quick disconnect couplings of the HK series are single shut-off, double shut-off or straight-through. The double shut-off version is to be earmarked for hazardous media such as acids, alkalis, hot water or steam. Single shut-off couplings can be equipped with a non-return valve in the socket or nipple, depending on the application.

During connecting the valves do not push against each other until the coupling is shut off to the outside. Conversely, they are only separated when the valves are closed. This type of quick disconnect coupling works splash-free.

Original Hansen coupling with straight-through design

Straight-through hydraulic and pharmaceutical coupling

The ST coupling series is characterized by its extremely robust design. It is particularly eligible for applications where the flow must be guaranteed even with highly viscous media such as greases and a shut-off can be dispensed with.

The ideal interface

A multicoupling system which can be put together individually and combines different operating media in a single interface. The product is robust, durable and easy to use.

Thanks to the perfectly matched adaptive inserts, you can flexibly integrate different diameters, connection types and media in a multiple coupling. The multicoupling system offers many advantages such as increased productivity, space optimization, operator and plant safety. The risk of faulty connections is excluded.

GATHER develops customer-oriented solutions according to your specifications.

• maximum efficiency
• several connections in one coupling
• connecting and disconnecting even under pressure
• shorter machine set-up times
• tool-free installation
• robust and durable
• individual combination of connections
• ideal for machine plant and prototype construction

Applications:

Engine test benches, reactors, temperature control of injection moulding tools, rolling mills, cooling of electronic components, etc.

Accessories for emergency release couplings

Double shut-off, release by traction rope

Description

A hose line which is used to convey hazardous media must have a predetermined breaking point. The latter prevents the escape of hazardous liquids or flammable gases in the event of unexpectedly occurring tensile forces. Usually, flange couplings screwed together with a tear-off bolt are used for this purpose. If this coupling has come off in an emergency, more effort will be required to reasssemble the connection; the manufacturer’s customer service must re-bolt the coupling.

Emergency separation function

Our double shut-off quick coupling with its de-coupling by traction rope offers a more cost-effective solution: A wire rope attached to the sliding sleeve of the coupling socket pulls it in the opening direction when pulling forces on the hose occur. The nipple located in the socket is unlocked, the valves of both coupling parts close. Only then does the nipple slide out of the sealing ring of the socket. After unlocking, both ends can be connected again by simply plugging them into each other; the coupling is immediately ready for use again. The wire rope length is so selected that the sliding sleeve of the socket moves in the opening direction before the hose tightens.

Advantages

• No shear pins or shear bolts need to be replaced after an emergency separation; simply plugging them into each other is sufficient to restore the connection.
• Emergency release coupling and quick coupling are combined in one system.
• The coupling does not have to be in the middle of the hose to function properly, but is attached directly to the engine: In an emergency, the vehicle will not drive off with a disconnected hose piece, but the entire hose will remain at the loading station! Zubehör für Nottrennkupplungen