U401-B Solenoid Valve

U401-B Solenoid Valve

Materials:

Body: Brass

Approval: EX mⅡA T4

Technical Specifications:

Power:AC220 V,2×4W

Diamter:1"

Current :big flow valve 18mA

small flow valve 18mA

Allowed flow rate:90L/min , Max flow rate: 90L/min , Mini flow rate:5L/min.

Working pressure:0.035-0.035MPa

Environmental Condition: -40~~+70degree

Package:

Product ID Weight Dimension

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

e, low cost and convenient maintenance, vane pump is widely adopted in many industrial areas. Most of domestic manufacturer of fue fuel dispenser l dispenser install vane pump as component. Vane pump includes ration pump and variable pump, the former is mounted in fuel dispenser. At recent years, the domestic noise research for vane pump has been achieved good progress conducted by fuel dispenser manufacturer. The noise of vane pump has remarkably been downed, reaching to less than 70 d B. it is introduced as followed: 1: Cap nut 2: Adjusting bolt 3: Spring seat 4: Spring 5: Blade 6: Rotor 7: Plug 8: Spring flake 9: Axis 10: Frame 11: Overflow valve 12: Valve seat Diagram 2-1: Vane pump structure drawin fuel dispenser g Structure and working principle of vane pump The Diagram 2-1 and 2-2 illustrate one kind of vane pump about its structure and tridimensional exploded drawing. This kind of pump prevails in domestic fuel dispenser market. Its structure, principle and maintenance will be introduced. Vane pump consists of overflow valve and vane pump illustrated in Diagram 2-1. Overflow valve is installed on the upper of body, including overflow valve seat, vale core, spring, spring bracket, jointer, adjusting bolt and cap nut. The lower body is pump section composed of gliding bearing, rotor subassembly, blade set, spring flat and pump cover with gliding bearing. The right side of diagram is inlet, the opposite outlet. The working principle, performance and common troubleshooting of vane pump and overflow valve will be presented respectively. Vane pump section The chamber in where rotor installed is pump chamber, its installing procedure showed in diagram 2-3. A centrifugal degree e between the center of chamber and rotor is illustrated in diagram. There are upper and down seal area, high pressure and low pressure transitional area, divided by the center of rotor. The angular degree in sealing area is larger than fuel dispenser that of degree formed by the neared two vanes so as to prevent oil flow between low and high pressure areas. 1-Cap

Page: 5　　0 Record Of Changes　　 fuel dispenser Date Version Modifications　　 number　　 April 93 1.01 The changes from version 1.00 to 1.01 are very significant and therefore a listing　　 of the changes is not necessary.　　 Date Version Modifications　　 number　　 May 93 1.02 - Consistency of the document reviewed (characters type and size　　 paragraphs table of content ...)　　 - Calculator message definition transformed in database definition have　　 fuel dispenser generated a lot of update which cannot be listed here (duplicate　　 definitions suppressed field renaming for consistency across the　　 document ...).　　 - The field numbering was reviewed to provide an unique number per　　 database.　　 - MandatoryOptional (MO) column was suppressed (application　　 dependent).　　 - ReadWrite (RW) column was suppressed (application dependent).　　 - Error codes were reviewed for simplicity.　　 Date Version Modifications　　 number　　 June 93 1.3 Chapter 1 - Definitions and Abbreviations　　 - Table layout changed　　 - Controller Device description added　　 - Outdoor Payment Terminal description added　　 Chapter 2 - Fuelling Point Behavioural Model　　 - Table layout for state and event description.　　 - Assign function explained with the state fuel dispenser machine.　　 - BUFFER FULL state

pulling Ethiopian troops away from its own disputed border. Mr Yusuf, Somalia s hapless president, is keen to lift an internati fuel dispenser onal arms embargo and bring in peacekeepers. The African Union (AU) backs him, but letting in foreign troops, in the first instance from Sudan and Uganda, may stir conflict as much as resolve it. Instead, the UN has tentatively suggested training up the Somali army and police. There is still a chance that peace may prevail. Ordinary Somalis are exhausted by years of fighting; no government has ruled the whole of Somalia in peace since the coup against its long- time leader, Siad Barre, in 1991. The country is in bits. Puntland, to the north-east, is autono fuel dispenser mous. Somaliland, to the north, has a functioning government that would love to secede, an idea that both the Islamists and Mr Yusuf s transitional government reject but which the AU now seems to back. America would like to make up for its miscalculation in backing the warlords by working more closely with international bodies and the AU. Mogadishu s powerful businessmen, who backed the Islamists out of commercial self-interest rather than piety, could act as a brake on warmongers and overzealous Islamist enforcers. The solution is probably power-sharing between the Islamists and the transitional government. That means the two sides sitting down together, as they promised to do later this month. The Islamists will have to be offered a lot of power. In return, they would have to agree to share revenue from Mogadishu s airports and port. Diplomats who have met Mr Aweys say that he is open to a bargain. © 2006 .  About sponsorship South Africa s media Watchdog or cheerleader? Jul 13th 2006 | JOHANNESBURG From The Economist print edition The post-apartheid state broadcaster is caught up in controversy all ove fuel dispenser r again THE South African Broadcasting Corporation (SABC) has been making almost as much news as it reports. The