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Pressure Bleeding Valve
Pressure Bleeding Valve

For special operating conditions where there is the risk of excessive pressure increase through warming in the pipe / hose system.
To protect the equipment, the optional pressure bleeding valve opens at a predetermined pressure limit.

Hose Unit for Emergency Unloading
Hose Unit for Emergency Unloading

Hose unit with locked swivel function: Use e.g. for emergency unloading of rail or road tankers. The locked swivel serves for a fast connection without tools.
Recommended for Equipment Trucks for Dangerous Goods Incidents.

Electronic Sensor
Electronic Sensor

The sensor is detecting the position of the driving plate inside the hose unit, making it possible to identify if the hose unit is connected to a tank unit and if it is in an open position.
No modification on the tank unit is needed.

Locking Device
Locking Device

to Avoid Unwanted Disconnection

Option for hose units.
Once coupled, the connection is automatically locked and can not loosen unintentionally.
Pulling ring version LD-S2 or lever version L-S2.
No modification on the tank unit is needed.

Non-Return Valve
Non-Return Valve

For wet hose systems, the check valve avoids that medium can flow back through a calibrated meter, when the pump switches off while the coupling is still connected.

Parking Adapter of Stainless Steel
Parking Adapter of Stainless Steel

Parking Adapter of Stainless Steel for DDC-M . Attachment vertically or horizontally with screws.
Safe and tidy positioning of couplings which are not in use. Protection of the hose unit against dust, dirt and damage.

Parking Adapter with Sensor
Parking Adapter with Sensor

Parking Adapter of Stainless Steel for DCC-M . Attachment vertically or horizontally with screws.
Safe and tidy positioning of couplings which are not in use. Protection of the hose unit against dust, dirt and damage.
Additionally: An inductive sensor detects when the Hose unit is attached.

10Options: Handle
11Options: Selectivity
12Accessories
13Order No.
Picture may differ from original product.

Part Number

S517B4401...

Product GroupDry Disconnect Couplings
Type of CouplingFemale (Hose Unit, Coupler)
Nominal Diameter / Socket Diameter4" (Ø 164 mm)
VersionVersion 1
Body MaterialAustenitic Stainless Steel
ConnectionThreaded Connection
Connection DetailF 4" NPT
Connection DetailTechnical Drawing
O-RingsViton® (FPM/FKM) Standard
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