Dry
Disconnects
And Breakaways

Hose Coupling Safety

� Use Dixon couplings, retention devices and accessory products only for their intended service.
� All recommendations of the Hose Manufacturer, and the Coupling Manufacturer, must be employed with regards to Size, Temperature, Application, Media, and Pressure when selecting the components for a hose assembly.
� All finished hose assemblies should be tested in accordance with the Rubber Manufacturers Association recommendations.
� All hose assemblies should be thoroughly inspected prior to each use to ensure they are undamaged, and properly coupled.
� Use safety clips on couplings, and King Safety Cables on assemblies where required by the manufacturer, as well as State and Federal regulations. (OSHA regulations may be viewed in full on the OSHA website, www.osha.gov.)
� Under no circumstances should the assembly working pressure or working temperature exceed the working pressure or working temperature of the lowest rated component (coupling, clamp, ferrule, or hose).
� Call Dixon (800.355.1991) for advice on couplings, retention devices, and accessories for your application.
Features & Benefits
Dry disconnect couplings are designed for the quick and spill free connection and disconnection of hoses and pipelines when transferring expensive hazardous product that is costly to clean up, reprocess or dispose of. Dry disconnects are used by producers of ink, adhesives, fatty acids, pharmaceuticals, liquid soaps, petroleum, chemicals, agricultural and a wide variety of common caustic and specialty acids.
� easy to handle - push and turn - free flow, turn and pull - closed
� time saving - no need to drain hoses or pipe systems
� economical - no loss or spillage of liquids at connection or disconnection
� safety - the valve cannot be opened until the unit is coupled
� environment friendly - accidental spillage eliminated when properly used
� safe and reliable - due to rugged construction
� product life - uncomplicated design and high quality materials ensures long product life
� selectivity - To avoid product contamination caused by connecting a coupler to the wrong adapter, selective versions of the adapters are available. Contact the factory for further information.
� produced according to NATO standard STANAG 3756 and ATOFINA SGM 2049.TUY.C.
� compatible with Mann-Tek, Avery Hardoll and Todo-matic� and any other product produced according to NATO standard
STANAG 3756

� Working Pressure -
aluminum: 300 PSI up to 4"
brass/ gunmetal *: 300 PSI up to 4"
stainless steel: 360 PSI

* produced to U.S. government bronze specification G
� Optional seals:
EPDM
NBR - nitrile
Kalrez�
Chemraz�
Perlas

How It Works

Open
� Push and turn it's coupled - full flow

Closed
� Turn and pull it's released - no spillage

Dry Disconnects

dry quick disconnect couplers x female NPT with Viton� seals

Dust Plugs for Couplers

composite plug

� Composite (Polyeten PE-HD 300) plugs provide good protection against corrosion and withstands hot and cold environments

Dry Disconnects
Tank Unit

� adapter is usually installed on the tank or manifold
� conical valve seat reduces the risk for "piston blow out"
� PTFE bearings between the piston shaft and the piston guide eliminate the risk for seizure
� for information on repair kits visit us on-line at www.dixonvalve.com

Construction:
� aluminum adapter - aluminum poppet, stainless steel internal parts
� stainless steel adapter - stainless steel poppet, stainless steel internal parts
� brass / gunmetal * adapter - brass poppet, brass and stainless steel internal parts
* produced to U.S. government bronze specification G

Dust Caps for Adapters

� Composite (Polyeten PE-HD 300) caps provide good protection against corrosion and withstands hot and cold environments

Dry Aviation Couplings
Hose Unit
Dry aviation couplings are designed for use in aviation refueling systems. Manufactured to accept the international standard
2�" point bayonet, hose end refueling nozzles according to: ISO45 / MS24484 / STANAG 3105 / British Aerospace Spec. 2C14.
They are not configured for under-wing refueling.

Sight Flow Indicators

� filter / screen can be inspected through the sight glass
� filter / screen is easily removed if cleaning is required
� screen is 100 mesh

Dust Plug for Couplers

� Composite (Polyeten PE-HD 300) plug provides good protection against corrosion and withstands hot and cold environments.

Dry Aviation Couplings
Adapter - Tank Unit

Dry aviation couplings are designed for use in aviation refueling systems. Manufactured to accept the international standard
2�" point bayonet, hose end refueling nozzles according to: ISO45 / MS24484 / STANAG 3105 / British Aerospace Spec. 2C14.
They are not configured for under-wing refueling.

Technical Information:
� stainless steel and brass / gunmetal (produced to U.S. government bronze specification G)
� Viton� seals
� female NPT and ASA flanges
� 360 PSI working pressure at ambient
temperature (70�F)
� safe handling of LPG
� easy to use and saves time
� reliable and easy to maintain
� can be coupled against higher pressure
� minimizes the risk of cold burns
� minimizes spillage and product loss
� minimizes health risks
� keeps the environment free of hazardous vapors and liquids

Dust Plugs for Couplers

� Composite (Polyeten PE-HD 300) plugs provide good protection against corrosion and withstand hot and cold environments

Dry Gas Couplings
Tank Unit

Dry gas couplings are designed for safe loading and discharge of bulk delivery trucks and rail cars. They are quick and easy to connect and can be connected to a tank unit with pressures up to 225 PSI. If the pressure is higher you can equip the couplings with a pressure relief valve. The easy to connect pressure relief valve dissipates trapped fluid pressure into the hose coupler without spillage. The primary application of dry gas couplings is in the handling of LPG - Propane and Butane.

Dry Disconnect Couplings
Flow Rate
Media: Water Temp: 60� F

Spillage on Disconnection

The test was made by coupling and uncoupling 10 times under pressures between one (1) and ten (10) bars. The result we got is a total spillage over 10 coupling cycles and an average spillage on each coupling cycle. The test was carried out with water under ambient temperature.

Options for Hose and Tank Units
Electronic Sensors
Electronic Sensors detect the position of the driving plate inside of the hose unit.
No modification on the tank is required. This makes it possible to identify if the hose unit is connected to a tank unit and if they are in an open position.

Dry Disconnect Couplings
Options for Hose and Tank Units

Locking Devices

Locking Devices
eliminate the unintentional disconnection when

Selectivity Options

Selectivity versions of Hose and Tank units are available to prevent the accidental mixing of media.
The Tank units are furnished with slots and the Hose unit with pins that interlock upon connection.

Handle Options
Optional handles are available for 1"-4" Hose couplers. 2" Hose unit shown

Dry Break Cam & Groove Style Dry Disconnect Couplings
Couplers

� dry disconnect coupler has automatic closing poppet assembly
� heavy duty stainless steel crank and link provide long service life
� stainless steel handle allows product exposure to corrosive chemicals or washdown service
� strong handle attachment prevents bending of crank assembly
� fully interchangeable with Kamvalok (OPW trademark) style fittings
� aluminum fittings have stainless steel1 internals
� for pressure ratings at other temperatures, contact the factory
� Dixon EZ Boss-Lock cam arms standard on all fittings, provide high security from accidental opening due to vibration or snagging
� large paddle type cam arms standard on 3" fittings, allow for an easy grip
� for information on repair kits visit us on-line at www.dixonvalve.com

Must be used with a DBA style adapter for coupler to operate.
Adapter sold separately.
(see next page)
1 stainless steel corrosion resistance is comparable to 304 stainless steel �
Kalrez� gasket, main seal O-ring and handle O-ring. PTFE seals on cylinder assembly, stuffing box, and seal under poppet screw.

Dust Plugs for Couplers

Dry Break Cam & Groove Style Dry Disconnect Couplings
Adapters
Compatible with most cam and groove style dry disconnects, the Bayco dry disconnect helps prevent spillage from normal or accidental disconnects. A spring loaded sealing device is designed to "snap" closed should the valve become disconnected with the poppet open, significantly limiting liquid loss.

� two-piece design for easy rebuilding of adapters ������������������������������������������������������������
� fully interchangeable with Kamvalok (OPW trademark) style fittings
� aluminum fittings have aluminum nose piece and brass piston
� for pressure ratings at other temperatures, contact the factory
� for information on repair kits visit us on-line at www.dixonvalve.com

Dust Caps for Adapters

Dry Break Cam & Groove Style Dry Disconnect Couplings

Flow Chart

Dry Break Adapters
DBA Series with Female NPT

example part # DBA72-200
component material
seal material
thread size
Dry Break Adapter with all stainless
components, Viton� seals and 2" NPT thread

Dry Break Cam & Groove Style Dry Disconnect Couplings
DBC series with Female NPT
example part # DBC72-200
component material
seal material
thread size
Dry Break Coupler with all stainless components,
Viton� seals and 2" NPT thread

The D2C style couplers work with the DBA adapters for applications where automatic closure for the coupler is not desired. This coupler is suited to vapor recovery, suction pump line and applications where it is necessary to easily drain the hose or piping for clean out. It can also be used when product retention in hose or pipe is desired but damage from accidental spill from an open coupler is not a concern.
� 316 stainless steel body
� 304 stainless steel internal components
� EZ Boss-Lock cam arms
� stainless steel locking lever included
� available with Buna, Viton�, Viton-B�, EPDM, PTFE encapsulated Silicone and PTFE encapsulated Viton� seals
� used with poppeted adapter DBA series (page 13)

API Bottom Rack Loading Fittings
Couplers

Dixon Bayco's API coupler uses a snap on connection where the coupling action is automatic upon contact with the API adapter. The coupler is completely modular so it can be built with various face seal combinations to be compatible with different alternative fuel, performance levels and applications. Two models are available: bonded nose seal and replaceable nose seal.
� 4" TTMA inlet mounting flange
� 5 cam design for easy alignment and tight connection
� ball-end handle for easy, comfortable operation
� no special tools needed for maintenance
� shaft seals can be changed without removing coupler from loading arm
� fully compliant with API RP1004:2003 specifications
� fully interlocked collar can not be opened when connected and can not be disconnected when opened
� one piece bonded nose seal ensures long life and cannot be washed out
� optional replaceable nose seal for quick replacement without removal from loading arm

Material Specifications:
� body: hard coated anodized AL 356 T6
� shroud: hard coated anodized AL 356 T6 with stainless steel insert
� link, shaft, pin and crank: hardened
17-4PH stainless steel
� cam: CF8M stainless steel
� poppet and bearing: ZA-12
� seal options: Buna, Viton-B�, Viton� GFLT

Technical Specifications:
� weight: 20 lbs.
� maximum working pressure: 150 PSI
� peak surge pressure: 350 PSI
� operating temperature:
Viton� seals: -20�F to +400�F
Buna seals: -20�F to +250�F
� maximum flow rate: 600 GPM
� pressure drop: 3 to 4 PSI

Chemical Compatibility
(Buna seals):
� gasoline
� diesel
� 10% ethanol
� B2 biodiesel blends

Chemical Compatibility
(Viton-B� seals):
� gasoline
� diesel
� jet fuel
� avgas
� 100% ethanol
� 100% methanol
� 100% biodiesel
� any blend of the above fluids