U404 Foot Valve

U404 Foot Valve

Materials:

Body: Brass

Valve: Brass

Seal : Buna-N / Viton

Features :

Valve closing speed:0.5S

Medium: Gasoline, diesel , and kerosene

Operating Temperature: -30~~+55degree

U404 Series Foot Valves are installed on the bottom of suction tubes in the fuel storage tank to maintain prime in suction system fuel lines.

Double-poppet models provide redundant protection for holding the prime, and are ideal for installations where the valve is not easily accessible.

U404 Series Foot Valves feature precision metal-to-metal sealing arrangements.U404 Series Foot Valves are recommended for use on suction lines where the pressure does not exceed 34 ft of head (approximately 15 psi).

U404 Series Foot Valves are pressured tested to ensure accuracy

Screen protects the valve from debris

100% Factory Tested.

Package:

Net Weight Cross Weight Dimension

32kg/case of 20 35kg/case of 20 30x31.2x18.5cm/case of 20

Important:

The products should be used in compliance with applicable country, province and local Laws and regulations. Products selection should be based on physical Specifications and limitations and compatibility with the environmentand materials to be handled. HONGYANG makes no warranty of fitness for a particular use. All illustrations and Specifications in this literature are based on the latest products information available at the time of publication,HONGYANG reserves the right to make changes at any time in price, materials. Specifications and models and to discontinue models without notice or obligation.

conducive to the failure that no oil is sucked. Don’t worry about the phenomenon of cavitation because its probability to occur is low, and the method to prevent it appearance would find when pipeline setting and the design and manufacture of pump. At present, manufacturers have achieved great progress in research to prevent cavitation in pump inlet. The phenomenon is avoidable. Stability The stability of pump is more important technical parameter, which is one of major labels measuring the performance of pump. The good stability of pump is low fluctuation in flow and slow increase of pulsant value as working long time. The 13.6 of JJG667-97 Liquid cubage flow meter stipulates that the flow rate fluctuation not exceed 2.5%, which is requirement for pump stability. Under same operating condition a good stability pump reduce the abrasion of hydraulic components so as to lengthen fuel dispenser’s service life. Moreover, it is conducive to reduce leakage of measure transducer and enhance fuel dispenser the accuracy. Noise Noise is also a symbol of pump’s performance, which relate to fuel dispenser’s noise. The GB/T9081-2001 Fuel dispenser for vehicle stipulates that the noise of fuel dispenser not exceed 80d B and the noise of pump no more than that of fuel dispenser, which is basic requirement for fuel dispenser. Noise is often created from pump of fuel dispenser, computerized fuel dispenser in particular. The pump noise is largely depended upon its stability, cavitation, partial flow speed and oil abrasion, etc. High noise pollutes environment and wastes electricity so as to increase operation cost of filling station. Usage and maintenance Many domestic component manufacturers now produce vane pump, but their products vary from inner structure, choice of material, suction capacity, stability, service life, noise and so on. Thus failure presents largely different. Vane pump should often be inspected and maintained during the operation progress. Specific procedure is as followed: Often inspect the rotati fuel dispenser fuel dispenser

completed.　　Pre-Conditions　　The customer wants to pay the purchase with a payment card.　　The merchant has the appropriate rights to accept payment card and the site systems are correctly set to　　perform the payment.　　The EPS is enabled for transactions handling in a status openstand by for new transaction.　　The POS is open in a shift cashier operated.　　Actors　　Actor Description　　Cashier Person who enters items at the POS and is accountable for the money in the cash　　 drawer.　　Customer Person who brings the item(s) to the POS and who wishes to purchases it (them).　　POS The application (or device) that allows the Cashier to enter transactions into the　　 system.　　EPS The application that manages the card payment application.　　Main Flow Description　　1. Customer brings the items to the POS to be rung up.　　2. Cashier enters the fuel dispenser items into the POS and requests the method of payment.　　3. If POS fails the process is aborted and the cashier has to recover the POS.　　4. POS passes sales information to EPS requesting card payment.　　5. If message invalid it is repeated or the process is aborted and the cashier receives a specific　　 alarm. POS is still at the initial status and cashier selects another method of payment.　　6. EPS gets card data　　7. EPS authorises card (not relevant where or how this is performed).　　 a. EPS asks for additional data　　 b. EPS performs any checkfunctionality according to cardconfigurationsystem　　 status　　 c. EPS provides the Eft Receipt to be printed.　　 d. Cashier performs any check if required (including receiving signature from　　 customer if the case)　　 e. Cashier completes EFT transaction on the EPS　　8. If the printer is not avail fuel dispenser fuel dispenser

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