U102-A Pumping Unit

U102-A Pumping Unit

Materials:

Body: Aluminum (Spray-Painted)

seals: Buna-N

Technical Specifications:

Working Motor Power: 750 W

Maximum. Flow: 60L/min

Rotary speed of pump: 520 rip

Noise: 68db(A)

Minimum. vacuum degree: 0.054Mpa

Pressure Drop: 0.12-0.25Mpa

Separate Ability of Oil and Air: >=20%

Features :

Positive displacement, self priming, internal gear type and adjustable bypass valve.

Designed for quiet, vibration-free operation.

Reusable suction strainer filter at inlet connection.

Reverse check valve at air separator float mechanism.

Check and relief valve at outlet of pumping unit.

100% Factory Tested.

Replacement Parts:

Key Description Materials

1 Coupling Aluminum

2 Sealing O-ring φ82*24 Buna-N

3 Sealing gasket-ring Buna-N

4 Up cap Aluminum

5 Floating kits Swell Buna

6 Cap Aluminum

7 Screen kits

8 Overfill prevention valve kits

9 Graphite vane Graphite

10 Body Aluminum

11 Outler valve kits

12 Cap Brass

13 Sealing gasket Aluminum

14 Exhausting Joint Buna-N

15 Pipe Kits Aluminum

16 Sealing gasket Buna-N

17 Sealing gasket Buna-N

Package:

Product ID Net Weight Cross Weight Dimension

U102-A 17.5kg/case of 1 18.5kg/case of 1 35.5x27x33cm/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 l fuel dispenser ocated 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 contro fuel dispenser lled 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 velocity o fuel dispenser f flow increasing a certain extent, that is, P2 smaller than at

equirement　　 with the fuel dispenser covered machinery　　 No. Type of hazard Clauses of this　　 standard　　 1 Mechanical hazards due to:　　 machine parts or work pieces e.g.　　 a) shape;　　 b) relative location; fuel dispenser 　　 c) mass and stability (potential energy of elements　　 which may move under the effect of gravity);　　 d) mass and velocity (kinetic energy of elements in　　 controlled or uncontrolled motion);　　 e) inadequacy of mechanical strength.　　 f) moving parts Drive belts andor shafts 5.3.6.2 7.3　　 1.9 High pressure fluid injection or ejection hazard Fluid in the hose pipes etc. 5.3.1.5 5.3.1.6　　 5.3.3.2 5.3.4　　 2 Electrical hazards due to fuel dispenser 　　 2.1 Contact of persons with l

lder) refused to pay for the scans. Securing FDA approval proved to be difficult. Doctors pointed out that the amount of PET radi fuel dispenser otracer administered was so low, it didn t cause any pharmacological effect. But because the material was introduced into the patient, the FDA required a clinical-trial process nearly as stringent as that for a therapeutic drug. “It was kind of ridiculous,�?recalls Dr Conti. Because FDG was not patented, “no company was willing to develop it, yet there were hundreds of articles showing how clinically useful it was.�?To educate regulators and the public about PET, those in the industry had formed a not-for-profit trade organisation, the Institute for Clinical PET, in 1990. For a long time, however, the group s lobbying efforts got nowhere. Things began to improve when Dr Ph fuel dispenser elps explained the benefits of PET to his friend Ted Stevens, a Republican Senator from Alaska. In 1997 Mr Stevens sponsored a provision as part of the FDA Modernisation Act that directed the agency to put new procedures in place to approve PET radiotracers and allow for their legal production in the meantime. A few weeks later Medicare agreed to start reimbursements for PET. Around the same time, CTI set up “PETNET�? a web of pharmacies around the country that could supply hospitals with FDG, eliminating the need for each hospital to make its own positron emitters in its own cyclotron. By the time Medicare began reimbursements, ten sites were already in operation. After that, the number of PET procedures and the sale of scanners began to take off. Meanwhile, another PET milestone was in the making. In 1994 David Townsend, then an assistant professor of radiology at the University of Pittsburgh, together with Ronald Nutt, a co-founder of CTI, applied for a grant from America s National Institutes of Health to develop a device that would combine PET and CT scanning. “We started think fuel dispenser ing, if we add CT to PET�? explains Dr Townsend, “we might have something interesting, since it