User Manual SAFETY PRECAUTION ◆ 1. FOREWORDS In the process of installation, use and maintenance, there may be one or more dangers, so only professionals can be engaged in the work. Before operating this equipment, relevant staff must read the manual, and understand all the content of the manual. All the charts in this manual should be read again, to comprehend all the contents relevant to safety control.
User Manual consequence is similar to burn. 3) When cryogenic liquid splash into the surface of skin, it will freeze a big area quickly. The gas which cryogenic liquid produced is cryogenic and can cause burn. 4) Forbid any part of body without protection contacting the pipeline, which have no heat insulation, otherwise when you try to walk away, the cryogenic metal will fast stick and tear up your skin.
User Manual be equipped with a suitable high pressure safety relief device, if the pipeline system is equipped with a booster pump. When the inlet and outlet valves of cryogenic liquid storage tank are both closed, nevertheless the rest of the fluid is still in this system, the import and export of return pipeline in system also must be equipped with low pressure safety relief device, which is called safety valve.
LFP80-50 model is a vertical, grade 2, direct coupling pump, which is directly mounted on a drive motor. All of these components are housed in a pump tank, which bear pump suction pressure.
User Manual 2. TECHNICAL PARAMETERS Model LFP80-50 24.5 hp (18 kW) Power-rating Cryogenic Submerged 380V/50Hz Type Power Supply Centrifugal Pump Pump 130 gal/min (30 m³/h) Phase Capacity (1500~6000)r/min 720 ft (220 m) Pump head RPM Range (inverter) -320℉ to 112℉...
Insure no person is in the hazard area during startup. 2. INSTALLATION OF THE PUMP The installation of LFP80-50 model pump includes the following processes: 1) Disassemble the cover of pump tank and Lift it from the vacuum pump tank, then...
User Manual 3. INSTALLATION AND LIFTING 1) Use the sling, which located under the pump body and motor and around them, to lift the pump assembly, if pump assembly is outside the pump tank. 2) Only can use the two ringbolts or lifting lugs on the head cover of pump tank to lift the pump assembly, if the pump assembly had been installed in the vacuum pump tank, and forbid to lift with slings around the pump tank.
User Manual of the pipeline stress, and that may affect the normal operation of the pump. Therefore, no stress on the pump! 2) Check all the pipelines before connect, inside there is no impurity, and then degrease clean the pipelines according to the pipeline cleaning procedure. Before the pump body finally installed into the vacuum tank in the process of installation, also need to carefully check cleaning of the pump body, where inside of the cylinder and the all the visible inner/outer surface.
User Manual have no mechanical impurity, which exceed 10 micrometer. The damage caused by mechanical impurity does not belong to warranty range. 11. UNLOAD THE VEHICLE The pump work frequency can’t exceed 80Hz, while unload the vehicle. ◆PUMP OPERATION WARNING! Do not attempt to operate the pump before complete installation, cleaning all pipe system and purge pipe system and pump.
User Manual failure to rise again within 10 seconds, stop the motor, rerun the motor after increase the pressure of the storage tank. Repeat the above steps until pump pressure boost. 2) Stop running if there is abnormal sound after start, adjust the opening degree of frontal and back valves, adjust frequency of frequency inverter.
User Manual 2. DISMANTLING Dismantle the pump assembly according to the following procedure. 1) Confirm all the above steps have been completed. 2) Disconnect the motor and its control system. 3) Remove the related fasteners from the pump pool cover. 4) Move the pump unit from the pump pool flange carefully.
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User Manual Lack of liquid Add liquid Insufficient net suction Rising storage tank pressure pressure Steering error Check the direction of rotation Not according to the rated flow and Low inlet pressure Rising inlet pressure pressure transmission Vanes or volute passage Disassembly, inspection and obstruction cleaning...
1. INSTALLATION STEPS 1) Preparation before installation: Ready with the tank vacuum jacket of pump, LFP80-50 model pump and necessary installing tool; The necessary degreasing cleaning of equipment and tools. The main using tool for installation are as shown in...
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105 ℃. Note the uniform heating, heating layer thick heat shrink tube. 6) LFP80-50 model pump with pump tank cover lifting to the pump tank, and properly install the pump tank cover, at once finish the installation of the pump body.
User Manual 2. IMPORTANT OPERATION STEPS 1) Check before the test run a) Assurance the level of liquid. The liquid level in the storage tank must be maintained at more than 3 meters, the inlet pressure conforms to the provisions of the pump nameplate.
If found the pump water during operation, the user must stop immediately, and lifting the LFP80-50 model pump tank. When the pump and pump tank completely heat, firstly clean pump tank water, and then flat pump, the pump purge for about 10 hours by hot air, blow out the evaporation of water in the pump body.
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User Manual Twist the steel wire around the screws which connect the motor cover of submerged pump and the flange of pool pump to prevent loosing. Refer to the picture 2 below. Picture 1 Picture 2...
User Manual ◆APPENDIX Ⅴ: PARTS/DRAWING 1. Parts List Name Qty. Filter liquid inlet worm Hexagon socket head cap nuts M10×70 Spring washer 10 Flat Washers Housing Impeller Middle piece Motor lower cover Second-stage seal Disc spring Gasket Stator Rotor Spring energy storage washer (Φ40×Φ30×3) Deep groove ball bearings 6307 Motor upper cover Spring energy storage washer (Φ65×Φ57×3)
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User Manual 2. Drawing General assembly drawing:...
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