HONGYANG GROUP Ecuador Technical Center

Fax: +86 (577)88097280

HONGYANG Group logo

HONGYANG GROUP Ecuador Technical Center , Discuss Technical Problem , Suply After Service Online of Fuel Dispenser, Please Regist Firstly

U403 Emergency shut-valve


U403 Emergency shut-valve

U403 Series Emergency Shut-off Valve are installed on fuel supply lines beneath at grade level to minimize hazards associated with collision or fire at the dispenser. If the dispenser is pulled over or dislodged by collision, the top of the valve breaks off the flow of fuel. Single-poppet models shut off supply flow, while double-poppet models shut off supply as well as prevent release of fuel from the dispenser's internal piping. The base of the Emergency Valve is securely anchored to the concrete dispenser island through a stabilizer bar system within a U-Bolt Assembly. Valve inlet (bottom) connection are female pipe threads and outlet (top) connections are available with female threads, male threads, or a union fitting. Other options include suction system models with a normally closed secondary poppet which maintain prime, and models with external threads on inlet body which connect to secondary containment system.


Body: cast iron(Spray-paint)

Surface: electronic Nickel plated

Seal : Buna-N O-ring

Features :

Flow rate: 0- 120 L/M

Working pressure: 0.2Mpa

Valve closing speed: 0.5s

Lowest shut-off temperature: 75 ?

Medium: water, gasoline, diesel, and kerosene

Operating Environment: -30 ~+55degree

Fire Protection- a fusible link trips the valve closed at 75 to shut off fuel

supply to the dispense.

Integral Test Port - a 3/8" Test Port allows the piping system to be air tested

without breaking any piping connection.

Low-Profile Tops- Female and Union-top double-poppet valves have a low-profile top to allow upgrading from single-poppet valves without changing existing piping.

100% Factory Tested.

Replacement Parts:

Key Description Weight

1 Protect pin

1 Cap(Single) 0.795kg

2 Cap(Double) 0.895kg


Net Weight Cross Weight Dimension

18kg/case of 6 20kg/case of 6 37.5x13.5x39 cm /case of 6

products links


technical archives

    s to quickly switch off power supply circuit in case that the associated circuit, connected power and used in explosive gas atmosphere, generate spark or become h fuel dispenser ot due to short circuit. Therefore, a reliable and valid safety barrier is very important to intrinsic safety fuel dispenser. The traditional safety barrier, adopting di fuel dispenser ode safety barrier, current fuse, voltage stabilizing diode and limited current resistance, is difficult to applicable to simple fuel dispenser due to expensive cost, large cubage and long time of melt. Owing to reliable performance, cost-efficient, quick response, electric safety barrier adopted VMOS component is widely mounted in most fuel dispenser at home and abroad. Diagram 3-19: Safety barrier sketch map 2.5 Drive circuit of motor and solenoid valve Diagram 3-20: Sketch map of motor driver 2.6 Flux pulse converter (pulse sensor) Flux Pulse converter, also called pulse sensor, is used for converting the volume that discharged out of flow meter into pulse data so as to calculate in measuring CPU. At present, there are two fuel dispenser kinds of popular pulse sensors in domestic market. One has double-way 30 pulses as per rotation of flow meter, the other double-way 50 pulses per rotation. Pulse sensor includes photoelectric sensor and Hall-effect Sensor. The circuit of popular photoelectric sensor is illustrated in Diagram 3-21 and 3-22. With the development of integrated circuit, a new kind of optical coupler is created, collecting the outside section of optical couple into inner so as to be simpler to use. Diagram 3-21: Photoelectric sensor circuit I Diagram 3-22: Photoelectric sensor circuit II 2.7 Operative switch Most manufacturers install operative switch on keyboard of fuel dispenser, though simple to technical solution, especially in preventing dangerous area in where install switch, the life service of keyboard is unable to be ensured due to so frequent operation. Therefore, the best solution is to install a touch switch on nozzle bracket. Mechanical key swit

technical specification

    93 05 00 00 00 00 |py2!4....=......|   0010 00 00 0F |... |  IFSF POSEP fuel dispenser S ImplementationGuidelines - Revision - 20060510   10052006 fuel dispenser Page 90 of 105   Confidential  B.2 IFSF Lite Message Coding   An IFSF POS-EPS message is XML document where the root element has one of the  Message   following tag:  Encoding   CardServiceRequest for a CardService message request sent   by a POS workstation (CardPayment request CardPreAuthorisation request ?   CardServiceResponse for a CardService message response   sent by EPS (CardPayment response CardPreAuthorisation response ?   ServiceRequest for a Service message fuel dispenser request sent by a   POS workstation (Login request ReconciliationWithClosure request ?   ServiceResponse for a Service message response sent by   EPS (Login response ReconciliationWithClosure response ?   DeviceRequest for a Device message request sent by a POS   workstation or the EPS (CashierTerminal request PINVerify request ?   DeviceResponse for a Device message response sent by a   POS workstation or EPS (CashierTerminal response PINVerify response ?   IFSF Lite defines six related complex data allowing encoding of the whole message.   As example we consider a Login message request containing the follow

we are committed to create the best workplace, encourage our staffs to put their own personalities into their jobs, and provide them a stage to show themselves.

    Previous print editions Subscribe On the cover Country Briefings The war behind the fuel dispenser war Jul 29th 2006 Subscribe to the print edition involves I fuel dispenser ran and America as Jul 22nd 2006 Or buy a Web subscription for well as Lebanon and Israel Jul 15th 2006 Audio interviews full access online leader Jul 8th 2006 RSS feeds fuel dispenser Jul 1st 2006 Classifieds Receive this page by RSS feed More print editions and PRINT EDITION covers » The world this week Politics this week Business this week Business Leaders