AC Gear-type Oil Pump - Folke
AC Gear-type Oil Pump User’s Manual WARNING: Read carefully and understand all INSTRUCTIONS before operating. Failure to follow the safety rules and other basic safety precautions may result in serious personal injury. MODEL NO.: 17320090, 17320091, 17320092, 17320093, 17320140, 17320141, 17320100, 17320101, 17320180 1. DECLARATION OF CONFORMITY DECLARATION OF CONFORMITY IN CONFORMANCE WITH THE DIRECTIVES 98/37/EEC (MACHINERY) 73/23/EEC (PRESSURE VESSELS) 89/336/EEC (ELECTOR-MAGNETIC COMPATIBILITY) THE MANUFACTURER INTRADIN (SHANGHAI) MACHINERY 118 DUHUI ROAD, MINHANG DISTRICT, SHANGHAI, 201109 CHINA DECLARES THAT THE FOLLOWING PUMP MODELS: 17320090, 17320091, 17320092, 17320093, 17320140, 17320141, 17320100, 17320101, 17320180 CONFORMS TO THE FOLLOWING EUROPEAN REGULATIONS: EN292-1-92 – Safety of Machinery – General Concepts, basic principles for design – terminology, basic methodology EN292-2-92 – Safety of Machinery – General Concepts, basic principles for design – specifications and technical principles EN294-93 – Safety of Machinery – safe distances to prevent the operator’s upper limbs from reaching dangerous areas EN60034-1-2000 – Rotating electrical Machinery – nominal and functional specifications EN60034-5-2001 – Classification of grades of protection for the housings of rotating electrical machinery EN61000-6-3 – Electro – magnetic compatibility – generic emission standards EN61000-6-1 – Electro – magnetic compatibility – generic immunity standards EN55014-1-00(A1/99-A2/99) –Limits and methods for measuring radio disturbance characteristics EN55014-2-97 – Electrical motor – operated and thermal appliances for household and similar purposes, electric tools and similar electrical apparatus EN60204-1-98 –Safety of machinery – electrical equipment of machines 2. Machine Description Pump：Electric self-priming rotary internal gear pump, equipped with a by-pass valve Motor: Asynchronous motor, single phase, 4-pole, closed type (Protection class IP55), self-ventilating, flange-mounted directly to the pump body. 3．Technical Information 3.1 Electrical Information ELECTRICAL POWER POWER Pressure PUMP MODEL Current Voltage (V) Frequency (HZ) Nominal (watt) Maximum 17320090 AC 230 50 550 12 BAR 9LPM 17320091 AC 230 50 750 25 BAR 9LPM 17320140 AC 230 50 750 12 BAR 14LPM 17320092 AC 380 50 550 12 BAR 9LPM 17320093 AC 380 50 750 25 BAR 9LPM 17320141 AC 380 50 750 12 BAR 14LPM 17320100 AC 120 60 550 145 PSI 10 quarts/min 17320101 AC 120 60 750 290 PSI 10 quarts/min 17320180 AC 120 60 750 145 PSI 18 quarts/min Flow Rate ATTENTION! The power absorbed by the pump depends on the functioning point and the viscosity of the oil being pumped. 4. OPERATION CONDITIONS 4.1 Environmental Conditions Temperature: Min -10°C / max+60°C Relative Humidity : max 90% ATTENTION! The temperature limits indicated are applied to the pump components and must be respected to avoid possible damage or malfunction. It is understood, nevertheless, that for a given oil, the real functioning temperature range also depends on the variability of the viscosity of the oil itself with the temperature. Specifically: The minimum temperature allowed (-10℃) could cause the viscosity of some oils to greatly exceed the maximum allowed, with the consequence that the static torque required during the starting of the pump would be excessive, risking overload and damage to the pump. The maximum temperature allowed (+60℃) could, on the other hand, cause the viscosity of some oils to drop well below the minimum allowed, causing a degradation in performance with obvious reductions in flow rate as the back pressure increases. 4.2 Electrical Power Depending on the model, the pump must be fed by single-phase alternating current whose nominal values are those indicated in the Table of paragraph 3.1-Electrical information. The maximum acceptable variations from the electrical parameter are: Voltage: ±5% of the nominal value Frequency: ±2% of the nominal value ATTENTION! Electrical power from lines with values outside the limits indicated can cause damage to the electrical components. 4.3 Working Cycle Under normal operating conditions they can function continuously with no limitations. ATTENTION! Functioning in by-pass conditions is only allowed for brief periods (2 minutes maximum). Whenever a particular installation carries the risk of functioning in by-pass mode for longer periods of time, it is necessary that the by-passed flow not be recirculated inside the pump, but be returned to the suction tank. 4.4 Fluid Allowed / Fluids Not Allowed ALLOWED: Oil with a Viscosity from 50 to 2000 Cst (at working temperature) NOT ALLOWED RELATED DANGER Gasoline (Petrol) Fire - explosion Inflammable liquids with PM < 55℃ Fire - explosion Water Oxidation of the pump Liquid food products Contamination of same Corrosive Chemicals Corrosion of the pump Injury to people Solvents Fire – explosion Damage to gasket seals ATTENTION! The gear pump is sensitive to those polluted fluid, DO NOT deliver the fluid contained too much impurity. 5. MOVING AND TRANSPORTING Given the limited weight and size of the pumps (See dimensions and weights), moving the pumps does not require the use of lifting equipment. The pumps are carefully packed before shipment. On receipt, check the packing materials and store in a dry place. 6. INSTALLATION 6.1 Preliminary Inspection Check that the machine has not suffered any damage during its transport or warehousing. Clean the inlet and outlet openings with care, removing any dust or packing residue. Make sure that the motor shaft turns freely. Check that the electrical information corresponds with what is shown on the label. 6.2 Mechanical Installation The gear pumps can be installed in the following ways: a. On an horizontal base: b. With the pump body upwards c. With pump body aside WARNING DO NOT install the pump vertically with the pump body downwards. Do not install the pump at the inflammable & steamy place. If absolutely necessary, install a foot-valve and fill the suction tube with oil during the first priming phase. Fix the pump using screws of a diameter suitable for the provided fixing holes as indicated in the drawing. 6.3 HYDRAULIC CONNECTION Make sure that the hoses and the suction tank are free of dirt and filling residue that might damage the pump and accessories. Always install a metal mesh filter in the suction hose. Before connecting the delivery hose, partially fill the pump body with oil to avoid the pump running dry during the priming phase. The MINIMUM recommended characteristics for hoses are as follows: SUCTION HOSE - Diameter: 1” - Nominal pressure: 2 times the pressure P bypass - Appropriate for use with suction DELIVERY HOSE - Diameter: 1/2” - Nominal pressure: 2 times the pressure P bypass ATTENTION! The use of hoses and/or line components that are inappropriate for use with oil or have inadequate nominal pressures can cause damage to objects or people as well as pollution. The loosening of connections (thread connections, flanges, gasket seals) can likewise cause damage to objects or people as well as pollution. 6.4 SUCTION & DELIVERY LINES DELIVERY The choice of pump model to use should be made keeping in mind the viscosity of the oil to be pumped and the characteristics of the system attached to the delivery of the pump. The combination of the oil viscosity and the characteristics of the system could, in fact, create back pressure greater than the anticipated maximums (equal to P max), so as to cause the (partial) opening of the pump by-pass with a consequent noticeable reduction of the flow rate supplied. In such a case, in order to permit the correct functioning of the pump equal to the viscosity of the oil being pumped, it will be necessary to reduce resistance in the system by employing shorter hoses and/or of larger diameter. On the other hand, if the system cannot be modified it will be necessary to select a pump model with a higher Pressure. SUCTION The gear-type oil pumps are characterized by excellent suction capacity. In fact, the characteristic flow rate/back pressure curve remains unchanged even at high pump suction pressure values. At the initial start-up, the maximum priming height can reach 2M when the suction hose is empty and the pump is filled by the fluid. So during this period, the height between the pump & fluid should be less than 2M. If exceed this height, it would be better to assemble a foot valve or use a larger diameter suction hose. It is suggested never install a pump over 3M height. 7. INITIAL START-UP The gear-type oil pumps are self-priming and therefore, able to draw oil from the tank even when the suction hose is empty on start-up. The priming height (distance between the surface of the oil and the inlet opening) must not exceed 2M. WARNING Wetting the pump. Before starting the pump, wet the inside of the pump body with oil through the inlet and outlet openings. If the pump is already installed, the wetting operation can be performed by unscrewing the threaded plug of the inlet opening not in use, by filling the internal chamber with oil and screwing in the plug, paying attention to the O-ring seal. If no foot valve is installed, it is advisable to leave the purge valve always open so that once the device is re-started again, it is ready to purge the air present in the suction tube. Please consider that during the operation, a small part of oil re-circulates in the tank. If a foot valve is installed, close the air purge valve by turning it clockwise, so that no oil circulates in the tank. If the foot-valve seal is not perfectly tight, the suction tube may be emptied and the purging operation described above must be repeated. The priming phase may last from several seconds to a few minutes, depending on the characteristics of the system. If this phase is excessively prolonged, stop the pump and verify: That the pump is not running completely “dry” That the suction hose guarantees against air infiltration and is correctly immersed in the fluid to be drawn That any filters installed are not blocked That the priming height is not greater than 2M That the delivery hose allows for the easy evacuation of the air When priming has occurred, after reattaching the delivery gun, verify that the pump is functioning within the anticipated ranges, possibly checking: 1) that under conditions of maximum flow the energy drawn by the motor falls within the values indicated on the label 2) that the back pressure in the delivery line does not exceed the values indicated in paragraph 6.4 SUCTION & DELIVERY LINES 8. EVERY DAY USE 8.1 Manual Operation 1) Before starting the pump, make sure that the ultimate shut-off device (delivery gun or line valve) is closed. 2) Turn the on-switch 3) Make sure that the tank is filled with a quantity of oil greater than the quantity to be supplied (running dry could damage the pump) ATTENTION Never start the pump by simply inserting the plug in the outlet. 4) Open the delivery valve or activate the delivery gun, gripping it securely. 5) Close the delivery gun or the line valve to stop delivery. The pump will immediately enter by-pass mode ATTENTION Running in by-pass mode with the delivery closed is only allowed for brief periods (2 to 3 minutes maximum). 6) Stop the pump 9. PROBLEMS AND SOLUTIONS PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION Motor does not turn Lack of power Check electrical connections and safety systems Rotor blocked Check for possible damage or obstruction to rotating parts Thermal motor protector has Wait until the motor cools, verify triggered that it starts again, look for the cause of overheating Motor turns slowly when starting LITTLE OR NO FLOW HIGHER PUMP NOISE LEAKAGE FROM THE PUMP BODY Problems with the motor Contact technical support Low voltage from the electrical power supply Adjust the voltage within anticipated limits Excessive oil viscosity Verify oil temperature and warm it to reduce excessive viscosity Low level in the suction tank Fill in the tank Foot valve blocked Clean and/or replace valve Filter blocked Clean the filter Excessive suction pressure Lower the pump with respect to the level of the tank or increase the cross-section of the hose High load loss in the delivery circuit (running with by-pass open) Use shorter hose or of wider diameter By-pass valve blocked Detach the valve, clean or replace it Air in the pump or suction hose Check the seal of the connection Narrowing of the suction hose Use a hose appropriate for working under suction pressure Low rotation speed Check the voltage at the pump. Adjust the voltage or use cables of greater cross-section Excessive oil viscosity Verify the oil temperature and warm it to reduce the excessive viscosity Cavitation Reduce the suction pressure Irregular by-pass functioning Deliver until the air in the by-pass system is purged Presence of the air in the oil Wait for the oil in the tank to settle Damage to the mechanical seal Check and replace the mechanical seal 10. MAINTENANCE On a weekly basis check that the hose joints have not loosened, to avoid any leakage On a monthly basis check the pump body and clean it removing any impurities. On a monthly basis check and clean the filters placed at the pump inlet. On a monthly basis check that the electric power cables are in good condition. 11. NOISE LEVEL Under Normal operating conditions noise emission for all models does not exceed the value of 70 db “A” at a distance of 1 Meter from the electric pump.
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