U102-B Gear Pump

U102-B Gear Pump

Materials:

Body: Aluminum (Spray-Painted)

seals: Buna-N

Technical Specifications:

Power:750-1000W

Flow Rate:45~90L/min

Rotary speed :630~730rpm

Noise:?8dB

Vacuum :>=0.054Mpa

Pressure Drop:0.12-0.25Mpa

Air separation ability:20%

Features :

Positive displacement,self priming,internal adjustable bypass valve

Designed for quiet, vibration-free operation.Reusable suction

strainer filter and reverse check valve inside adapted

Check and relief valve inside adapted

100% tested before Ex-Factory

Package:

Product ID Net Weight Cross Weight Dimension

U102-B 18kg/case of 1 18.5kg/case of 1 36×32× 30cm/case of 1

ine bad effects of accuracy. 2. Pipeline noise Noise and tremble are not generated by pipe itself but hydraulic shock, pipe resonance and pressure pulse. Here explain, combining operation and maintenance of fuel dispense, these reason for noise and tremble 2.1 Hydraulic collision Hydraulic collision refers to the phenomenon in which oil pressure in pipeline is increased quickly as pipe switch open or c fuel dispenser lose or liquid changing flow direction. Hydraulic collision could lead to pipeline noise, which fuel dispenser are result from piston changing direction of measurement transducer and witching on or off pipe valve. Δρ= 12lv11+EoE·dδ (v2=0,t≤T) (2-10) Δρ= 12lv11+EoE·dδ ·Tt (v2=0,t≤T) (2-11) Δρ= 12lv11+EoE·dδ ( partial v2�?,t≤T) (2-12) Δρ= 12lv11+EoE·dδ ·Tt (partial v2�?,t≤T) (2-13) In above formulae: Δρ── increasing pressure value; υ1── previous velocity of flow υ2── latter velocity of flow T ── time that start from collision to reflect T=2la T ── changing time of velocity of flow fromυtoυ2 E0 ── elastic volume of fluid cubage E ── elastic modulus of pipeline d ── inner diameter of pipe δ── pipe thickness l ── diffused distance of shock wave a ── diffused speed of shock wave The above formulae illustrate four kinds of stock pressure on pipe in corresponding operations in which switching on or off nozzle quickly or slowly. They also explain that slowly switch on and off nozzle generating less collision pressure than that of rapidly under a certain parameter of pipeline system of fuel dispenser. Similarly, it is applicable to stock noise. Therefore, user shall slowly turn on and off nozzle in operation so as to reduce hydraulic stock and noise, and prolong fuel life service of fuel dispenser. Most of manufacturers of fuel dispensers have mounted anti hydraulic stock device in hydraulic system in order to abate the effects to fuel dispensers. fuel dispenser

03　　 Document title　　 IFSF POS to FEP Interface　　 Section Page　　 EMV 104178　　 Communications Failure　　 In this scenario the FEP does not see the repeat messages that are sent by the POS.　　 POS fuel dispenser FEP　　 1100 Au fuel dispenser thorisation Request Default Amount　　Customer initiates　　 (POS or FEP)　　Transaction (ARQC)　　 1110 Authorisation Request Response Response to Funds　　Response not　　 Reservation; lost in　　received before　　 transit.　　timeout　　 1101 Authorisation Request Repeat　　Authorisation Request　　Repeat sent　　No Response after　　further timeout.　　Decline the transaction　　to the customer.　　 1420 Reversal Advice　　Reverse the　　Authorisation.　　 1421 Reversal Advice Repeat　　No Response after　　timeout. Repeat.　　No Response after　　timeout; POS sets　　FEP to not available; 1820 Network Management Advice　　Send Network　　Management　　 Communications　　Requests periodically 1820 Network Management Advice restored; message　　until communications　　 received;　　are restored and a　　 1830 Network Management Response　　response is received.　　 fuel dispenser

g staff of personal responsibility. The probable cause they cited instead was the generally deplorable state of hygiene in the hospital. Among other evidence, French, Swiss and Italian experts noted that the AIDS outbreak appeared to have started at least a year before the accused nurses arrived in Libya and continued after their arrest. In addition, more than half the blood samples taken from HIV-infected fuel dispenser children showed they had also been infected with other diseases, including several variants o fuel dispenser f hepatitis. The obvious culprit in this case was the re-use of unsterilised needles. This has, in fact, been the cause of similar AIDS outbreaks, such as one in Russia in 1989 that infected 274 children. In Egypt during the 1970s and 1980s, a poorly controlled nationwide campaign to treat the parasitic disease bilharzia by multiple drug injections led to the massive spread of hepatitis C. Some 6m Egyptians are currently infected, largely as a result of the campaign. Even in the United States, some 20,000 patients die every year from infections contracted inside hospitals. Libya s courts have refused to consider such evidence on the grounds that it contradicts the conclusions of a panel of Libyan doctors. The alleged discovery of vials containing AIDS antibodies in the home of one of the nurses, the Libyan doctors contend, is proof enough of criminal intent. Yet even by the Libyans account, those vials were only analysed four years after being collected and did not show the presence of HIV, but of antibodies to the virus. Testimony from other health workers amply illustrates the poor state of public health services in Benghazi, a city which, incidentally, has long been a centre of opposition to Muammar Qaddafi. Some Libyan exiles suggest the city may have been kept short of medical supplies as punishment for an Islamist insurrection in the mid-1990s. They also contend that Libya s ruler has used the case to stoke xenophobia as a way of bolstering his rule. An international outcry greeted fuel dispenser