First, the fire pump equipment no liquid to provide, lack of liquid supply or lack of pressure 1. Fire pump equipment is not filled with water or is not properly vented Remedy: Check that the pump housing and inlet lines are completely filled with liquid. 2. Fire pump equipment is too slow Elimination measures: Check the motor wiring is correct, the voltage is normal or the turbine steam pressure is normal. 3. Fire pump equipment system head too high Elimination measures: Check the system head (especially the friction loss). 4. Fire pump suction device is too high Elimination measures: Check the existing net head (inlet pipe is too small or too long will cause great friction loss). Impeller or pipeline blocked Remedy: Check for obstructions. 6. fire pump equipment rotation direction is wrong Elimination measures: Check the direction of rotation. 7. There is a leak in the air pump or inlet line to the fire pump equipment Remedy: Check inlet piping for cavitation and / or air leaks. 8. Fire pump equipment stuffing box packing or seal wear, so that the air leaked into the pump housing Elimination measures: Check the packing or seal and replace as needed, check the lubrication is normal. 9. Fire pump equipment pumping hot or volatile liquid suction head is not enough Elimination measures: Increase the suction head, consult the manufacturer. 10. Fire pump equipment at the end of the valve is too small Elimination measures: Install the correct size of the bottom valve. 11. Fire pump equipment bottom valve or inlet pipe immersion depth is not enough Elimination measures: Ask the fire pump equipment manufacturer for the correct immersion depth. Eliminate eddies with baffles. 12. Fire pump equipment impeller clearance is too large Elimination measures: check the gap is correct. 13. Fire pump equipment impeller damage Elimination measures: Check the impeller, according to the requirements of replacement. 14. Fire pump equipment impeller diameter is too small Remedy: Consult manufacturer for correct impeller diameter. 15. Fire pump equipment pressure gauge position is not correct Elimination measures: check the location is correct, check the outlet nozzle or pipe. Second, the fire pump equipment will be shut down for a while 1. Fire pump suction device is too high Elimination measures: Check the existing net head (inlet pipe is too small or too long will cause great friction loss). 2. Fire pump equipment impeller or pipeline blocked Remedy: Check for obstructions. 3. Fire pump equipment generates air or inlet line leaks Remedy: Check inlet piping for cavitation and / or air leaks. 4. Fire pump equipment stuffing box packing or seal wear, so that air leakage into the pump casing Remedy: Check packing or seal and replace as required. Check the lubrication is normal. 5. Fire pump equipment pumping hot or volatile liquid suction head is not enough Elimination measures: Increase the suction head, consult the manufacturer. 6. Fire pump equipment at the end of the valve or inlet pipe immersion depth is not enough Elimination measures: Fire pump equipment manufacturers consult the correct depth of immersion, with the baffle to eliminate eddy currents. 7. Fire pump equipment pump shell gasket damage Remedy: Inspect the gasket and replace as required. Third, fire pump equipment power consumption is too large Fire pump equipment rotating direction wrong Elimination measures: Check the direction of rotation. 2. Fire pump equipment impeller damage Elimination measures: Check the impeller, according to the requirements of replacement. 3. Fire pump equipment rotating parts bite death Elimination measures: Check the internal wear parts of the gap is normal. 4. Fire pump equipment shaft bending Remedy: Align the shaft or replace as required. 5. Fire pump equipment is too fast Remedy: Check the winding voltage of the motor or the steam pressure delivered to the turbine. 6. Fire pump equipment head below the rated value. Pump too much liquid Elimination measures: Fire pump equipment manufacturers consulting. Install throttle valve, cut impeller. 7. Fire pump equipment fluid heavier than expected Elimination measures: Check the proportion and viscosity. 8. Fire pump equipment packing box is not properly filled (insufficient packing, not properly inserted or run together, the packing is too tight) Elimination measures: Check the packing, packing stuffing. 9. Fire pump equipment bearing lubrication is not correct or bearing wear Remedy: Check and replace as required. 10. Fire pump equipment wear ring between the running gap is not correct Elimination measures: check the gap is correct. Replace pump housing and / or impeller wear rings as required. 11. Fire pump equipment, pump casing stress is too large
Tool Holder Nuts Accessories
We are Pingyuan Best Machine Tools., Co., Ltd., the high-end cnc machine tools manufacturer and supplier from China. Our products line is over 100 models, mainly include: Tool Holder Claw clamps, Tool holder, Tool holder Locking device , Collet , Spanner , Pull Stud and Nuts , Etc. Collet Chuck also include many standards and models like: ISO series, BT30 series, BT40 series, HSK series, NBT series and CAT series, etc. Tool holder claw clamps inlcude ISO series, BT / NBT series, HSK series etc. Pull stud used for tool holders, it is the part to the holder. The pull stud mainly inculde ISO series, BT series, SK series, etc. For Tool Holder nuts have many types , for example as ER-A/M/UM/EOC type Tool Holder Nut.
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Fire pump equipment safety should not be overlooked fault diagnosis and elimination measures
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