U401-A Solenoid Valve

U401-A Solenoid Valve

The flow control valve has been tested and granted Ex approval.The Ex-approval is EX m II T4.Ex certificate number is CE021037.

Materials:

Body: Die cast aluminum alloy

Technical Specifications:

Power:AC220 V,2×4W

Current Consumption: big flow valve 18mA, small flow valve 18mA

Allow flow rate:65L/min,big flow rate:50L/min,small flow rate:5L/min.

Working pressure:0.035-0.035MPa

Environmental Condition: -40~~+70degree

Features:

A high advantage in reliability and adaptability.

Housing: Die cast aluminum alloy.

Dual flow control valves have three grades of big flow, small flow and close.

The fuel resistant cable can be customized regarding length.

100% Factory Tested.

Wiring:

Color Link

Brown communal terminal

Black big flow rate

white small flow rate

Yellow/green ground

Package:

Product ID Weight Dimension

U401-A 2.1kg/case of 130 ×116× 80mm/case of 1

used to keep a certain position to refuel. Working principal Pressured oil flow into the chambers in where main and vice valve located after switching main valve and 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 val fuel dispenser ve 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 velocity of flow increasing a certain extent, that is, P2 smaller than at fuel dispenser fuel dispenser

Use Annotation　　 LanguageCode LanguageCodeType optiona Optional. If Host requested to use a different language with　　 the customer (receiptdisplay).　　 After the operation thelanguage of the POSSell system is　　 supposed to return automatically to the original value.　　 TotalAmount Mandatory unless LoyaltySwipe　　Element　　Attributes Name Type Use Annotation　　 PaymentAmount MonetaryAmount Optional Actual payment of purchase.　　 CashBackAmount MonetaryAmount Optional If customer requested some cash back (and it was approved　　 by the Host).　　 OriginalAmount MonetaryAmount Optional TotalAmount of the request. Used if different in the response　　 because the host has the rights to affect it (e.g. discount).　　 Currency CurrencyCode fuel dispenser Optional Currency code of any amount in the response.　　 Authorization　　Element　　 Mandatory unless LoyaltySwipe.　　 It contains the minimum information for statistics on payments (when forwarded by the POS to the BOS it enables　　 some reconciliation reports on acquirer batch and reconciliation).　　attributes Name Type Use Annotation　　 AcquirerID AcquirerType Required Acquirer identification.　　 CardPAN CardPANType Optional PAN of the payment card (if) a fuel dispenser fuel dispenser

uses wholly disproportionate force to subdue a tiny and poorly equipped Papuan independence movement. All this has left most Papuans at best distrustful of Jakarta and more often wanting to secede from Indonesia. The division of the territory into two provinces in March, despite widespread local opposition, has exacerbated tensions. In fairness to Indonesia s government, Papuan activists claims of genocide lack credibility. But Mr Yudhoyono s policy of severely restricting access to the region by diplomats, researchers and journalists means that such allegations cannot be completely discounted. Hopes that Papua will follow Aceh, the Indonesian province blighted by rebellion for 29 years and now on the road to peace, are thus fading fast. And hopes for a restoration of good relations with Australia look little healthier. © 2006 . Mapping China, badly No direction home Apr 20th 2006 | BEIJING From The Economist print edition When state secrecy meets modern motoring FROM May 1st, millions of Chinese will enjoy a week s holiday. But many of those planning to drive long distances or hike in the countryside will get lost. The hectic pace of urban construction and road building combined with a culture of secrecy makes Chinese maps unreliable and vague. Detailed topographical map fuel dispenser s of the kind commonly used by ramblers in other countries are strictly classified. Schoolchildren get no training in how to read them. Two years ago government cartographers in north-eastern China said some local government websites had “seriously threatened national security�?by displaying secret maps with contours, elevations and grid lines. But the internet and the spread of satellite-navigation technology are beginning to weaken the state s control of cartographical detail. Chinese officials were horrified last year when they discovered that users of Google Earth, a free satellite-imaging facility, could direct the software to display buildings inside Zhongnanhai fuel dispenser fuel dispenser