U406 Breakaway

U406 Breakaway

The U406 is designed to be installed on fuel dispensing hoses,and will separate when subjected to a designed pull force. The dual valves seat automatically, stopping the flow of fuel and limiting any fuel spillage, while protecting the dispensing equipment. For proper operation, the U406-A/B should be installed with a "straightening" hose with a minimum length of 9". U406-C/D should be installed with a minimum length of 12" .

Materials:

Body: Aluminum

Main Seals: Viton

Main Spring: stainless steel

Guide and poppet: POM

Protective Sleeve: PVC

Features:

Pull force- the U406 will break away with a pull force of 250 lbs ±5%, the U406 will break away with a pull force of 300 lbs±5%.

Certainty of operation- designed to be replaced after separation, instead of reassembled, to protect against reassembly errors.

Unique double-poppet design-features low pressure drop.

Flow rate: 0-60L/Min(3/4")

0-120L/Min(1")

Working pressure: 0.18Mpa

Low pressure drop- the integral check valve design allows for minimal pressure drop for faster, high-volume fill-ups.

100% Factory Tested.

Package:

Product ID Net Weight Cross Weight Sizet

U406-A 23kg/case of 100 26kg/case of 100 26.8x48x26 cm /case of 100

U406-B 23kg/case of 100 26kg/case of 100 26.8x48x26 cm /case of 100

U406-C 19kg/case of 50 22kg/case of 50 29x29x30 cm /case of 50

U406-D 19kg/case of 50 22kg/case of 50 29x29x30 cm /case of 50

mp will decrease and overflow valve cut down flowage passed. When need to decrease flow rate, one will reduce openness of nozzle so as to increase the outlet pressure of pump. In that case, openness of valve and returned oil increase due to overflow valve work on spring, the outlet flowage of fuel dispenser is lessened. When the pressure of hydraulic system in fuel dispenser is suddenly increased due to some cause, overflow valve overcome spring strength under high pressure, raise openness and returned oil flowage to reduce pump pressu fuel dispenser re and protect the hydraulic system. Clockwise turn adjusting bolt of overflow valve given the openness of nozzle is unchanged the flux of fuel dispenser will be increased; anticlockwise turn decrease flux. Performance of vane pump Suction capacity Like other pump the good performance of vane pump should has high suction capacity, excellent stability with less vibration, small transitional volume, low noise, nice reliability and maintainable. These traits depend upon rational structure design, right selection of material and manufacturing level. User’s correct usage and maintenance is very important as well. Vane pump suction capacity mainly lies in the two aspects: suction distance and avoidance of air pocket. Diagram 2-5 is about pump, explaining pump suction distance. Suction distance refers to fuel dispenser’s capacity to suck oil from a certain vertical and horizontal distance, often mean fuel dispenser ing vertical distance. Keeping suction distance a definite vacuum pressure in pump inlet is prerequisite. When the oil level is high or low in fuel dispenser tank pump inlet vacuum pressure is often high. Under such high pressure, overflow valve overcome spring strength increase openness and returned oil. Due to the pressure returned oil in other penetrative section is also increased, the filling flux is cut down consequently. The outlet flux of fuel dispenser becomes zero when returned oil reaches a certain volume. Therefore, when the returned oil of overflow valve and other penetrative s

EVENT DESCRIPTION　　 EVENT-NAME A short description of the event. Used to describe to which new state the fuelling　　 point has moved to once all the actions are completed.　　 PCD Comment:　　 A short description giving extra information needed for PCD implementations.　　 Action: Input action description in terms of control and data flows　　 between the CD and the FP.　　 fuel dispenser Action : Output action description in terms of control and data flows　　 between the FP and the CD.　　The data elements which are sent by the control and data flows are described in chapter 3　　 Dispenser Database .　　Any change in the Fuelling Point State the Transaction Buffer State the Logical Nozzle　　State or the FP Assign Control is sent as an unsolicited message from the FP to the Controller　　Device.　　The CD recipient addresses for the unsolicited messages are contained in the Recipient Address　　Table in the Communication Service Database (for further information see chapter 4.5 in the　　document Part II Communication Specification Release 1.51 ).　　FP31_2.23 IFSF - STANDARD FORECOURT PROTOCOL March 2006　　 fuel dispenser DISPENSER APPLICATION　　Page: 28　　2.1 Fuelling Point State Diagram　　The fuelling point state diagram d fuel dispenser escribes in detail the behaviour of the fuelling point in a　　dispenser.　　States are represented on Figure 1 (FUELLING POINT STATE DIAGRAM) and Figure 2　　(FUELLING POINT STATE DIAGRAM ERROR CONDITIONS) by rectangles. The states　　are sequential numbered.　　The arrows between the states are labelled with the event name or names that causes the FP to　　change from one state to a

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