U314 Automatic Nozzle

U314 Automatic Nozzle

U314 Automatic nozzles are designed with today's customer in mind. Small, trim, light weight, easy and convenient to use. It is a rugged performer that offers long life and reliable service.

Warning

Use foreign objects to hold open automatic nozzles could result in failure to shut-off and personal injury.

Materials:

Body: Aluminum

seals: Buna-N, Viton

Main stem seals: Viton Cased Oil Seal / Graphite with Teflon

Main stem: Stainless steel

Color of insulator :

Red Green Blue Yellow Black

Features :

U314-A/C/E/G Flow rate: 0-45 L/m ( (13/16")

U314-B/D/F/H Flow rate: 0-70 L/m (15/16")

Working Pressure: 0.18Mpa

Compound Main valve and bleed poppet

Tight structure, attractive appearance. Minimum pressure Loss and

offer a maximum flow rate

Accurate flow control-

It allows customers to top off their tank to the exact amount that they

want , and it's easy to stop gasoline flow precisely.

Easily replaced rotar y 360 swivel- prevents the hose

from curling up.

Hold-open rack is available for full service applications.

The one hand control means easy setting to flow rate for customer's convenience.

Spout with gear: Making it to be holding on the spout of tank

without hand, improving your efficiency.

Flow-lock: designed to shut-off automatically when the spout is

tripped up, limiting spillage, avoiding accident.

Hand insulator- protect both nozzle and vehicle, and insulates

users' hands.

Available Colors- color chart on inside back cover

Selective splash guard.

100% Factory Tested

Replacement Parts:

Key Description

1 Spout 13/16" & Spout 15/16"

2 Full hand insulator

3 Lever-Guard Lever Assembly

4 Diaphragm Assembly

5 Vac Cap

6 Main Valve

7 Swivel BSPT3/4" & NPT3/4" & BSPT1" & NPT1"

Package:

Net Weight Cross Weight Dimension

18.75kg/case of 15 22kg/case of 15 55x34x42.5cm/case of 15

used to keep a cert fuel dispenser ain position to refuel. Working principal Pressured oil flow into the chambers in where main and vice valve located after switching main valve an fuel dispenser d flow out of spout because vice valve is opened. Liquid flowage reduces the static pressure and the pressure in upper chamber of switch. The pressure on the chambers of upper and low switch membrane are equivalent due to the front of spout communicating atmosphere. When inlet vent is flooded by oil, the lower chamber of switch membrane still keeps atmospheric pressure. Thus, pressure difference is generated between the upper and lower chambers of switch membrane, the membrane and auto-shut level moving upward, auto controlled level moves downward under the function of switch handle. Finally, steel ball is driven into the hole of auto controlled level; switch handle continues to move downward; main valve is closed. In order to form the auto-shut function, two oil passages with different sections should be set (See Diagram 2-32). Here the Bernoulli equation as followed in order to explain the principle of auto-shut: �? = 12 ρv12+ρgh1=�?+12ρv22+ρgh2 (2--6) Among the above formula: ρ── oil density �?── pressure in main valve passage v1 ── velocity of flow in main valve passage h1── height of main valve �?── pressure in vice valve v2── velocity of flow in vice valve passage h2── height of vice valve Diagram 2-32: Auto-shut nozzle Due to small nozzle body, it could be regarded as a horizontal pipe, that is h1= h2 From Formula 2-6: �?－ｐ2�?2ρ(v22－v12) (2-7) According the following Formula: v1v2=A2 A1 In the Formula: A1 ── section of main valve passage A2 ── section of vice valve passage The Formula can be converted into: �?－ｐ2�?2ρv22 [1�?A2A1)] It is known from Formula 2-8 that if A2 / A1 is certain value, P2 becomes a negative value when ve fuel dispenser locity of flow increasing a certain extent, that is, P2 smaller than at

................... fuel dispenser ....24　　8. APPLICATION PROTOCOL.................................................................................................. 25　　 8 fuel dispenser .1. PARAMETERISATION SESSION ............................................................................................... 25　　 8.2. TRANSACTION SESSION....................................................................................................... 26　　 8.2.1. Banking transaction (B0EMV) .................................................................................. 26　　 8.2.1.1. Complete transaction.............................................................................................................................26　　 8.2.1.2. Transaction without authorisation request ........................................................................................26　　 8.2.1.3. Transaction abandoned before debit granted...................................................................................26　　 8.2.2. Private transaction (mag card) ................................................................................... 27　　 8.2.2.1. Transaction type......................................................................................................................................27　　 8.2.2.2. Transaction with code check by monetics .........................................................................................27　　All rights reserved ? Printed on 281004 10:10 698　　 Ref : NT1118R1　　 fuel dispenser MPA V5.2: TECHNICAL SPECIFICATIONS　　

with political pro fuel dispenser blems, both internal and external. Start with the external politics. VW has the state of Lower Saxony as a big shareholder and a special law to p fuel dispenser rotect it from takeovers. The German government is under persistent pressure to scrap this law from both the European Commission (which says it is anti-competitive) and foreign investors (who think it caps the share price). Meanwhile, the internal politics on VW s supervisory board has turned into a civil war. Bernd Pischetsrieder, who will leave the chief executive s job at the end of the year, only six months into a new contract, is the latest victim. His predecessor, Ferdinand Piëch, is now chairman of the supervisory board and the relationship between the two soured long ago. Mr Piëch has made no secret of his desire to replace Mr Pischetsrieder with Martin Winterkorn, the head of Audi, the VW group s successful premium-brand subsidiary. Audi has done so well that it is now propping up the rest of the group its margins are double those at VW. In America VWs are even sold at a loss, because of the strength of the euro and the relative inefficiency of VW s German factories. Things got worse when Porsche, a sports-car firm in which Mr Piëch is a big shareholder, took a 20% stake in VW at his behest last year. The move paid off for Porsche and its shareholders because the VW share price soared. The appointment of two Porsche bosses to VW s supervisory board also increased Mr Piëch s power. Hence VW s bizarre decision to axe low-cost production in Belgium, Spain and Portugal, and to repatriate work to more costly German plants in order to make better use of their capacity. Mr Piëch is replaying his strategy from the mid-1990s when, unable to sack German workers for political reasons, he ramped up production to accelerate out of trouble. Mr Piëch s trick is unlikely to work this time—VW already has a huge fuel dispenser share of the European market, and now faces much tougher competition. For his part, Mr Pischetsrieder has evident