chemicalvalve

After tightening, release 1-2 buttons. ③ Install the keyed coupling on the shaft by heating or tapping with a copper rod. ③ Put the packing retaining sleeve, water seal ring, packing gland, water retaining ring and front bearing gland with green shell paper pad on the front axle sleeve, and install the sealing ring on the impeller stop. If problems are found, they should be treated (repaired or replaced) before assembly. ⑥ Put on the sealing gland and tighten the sealing packing gland bolts with even force. If the impeller is not in the middle of the pump body groove, it can be adjusted by tightening the front and rear bearing lock nuts. Check the parts for scratches, wear, and cracks.

After measuring the length of the filler with the outer diameter of the shaft sleeve, the average bevel, the incision is 30︒ or 45︒; b Put the water seal ring in the filler and the middle, and add 2-3 before and after it respectively With the filler, the incision is 90︒~120︒, and the last one is cut downward.5mm.　　 (3) Shearing cushion: shearing cushion for bearing gland and pump cover. ② Fasten the front and back bearing body glands to the bearing body with bolts, and tighten the side disc pump. ⑤After adding two-thirds of its volume to the bearing and the bearing body, install the front bearing body on the bearing, and fasten the bearing gland and bearing body together with bolts.　　 (2) Measure the outer diameter of the impeller and the inner diameter of the seal ring with a vernier caliper, write the measurement Bottom Valve Manufacturers result on the record, and calculate whether the fit clearance is 0.　

(5) Assembly: ① Place the installed pipeline booster pump rotor on the pump body, and turn the cylindrical pin on the seal ring into the pipeline booster pump body groove. ② Install the front and rear shaft sleeves on both sides of the impeller, and fasten the front and rear shaft sleeves and the impeller on the shaft with front and rear shaft sleeve lock nuts. The end face of the packing gland is perpendicular to the shaft sleeve to prevent partial wear.(1) Thoroughly scrub and inspect all parts before assembling the pipeline booster pump. ⑤ Put a little grease on the contact surface between the pump body and the pump cover, add a green shell paper pad, and apply a little grease on the pad. ④ Install the front bearing on the shaft, and fix the bearing on the shaft with a sleeve lock nut (note the positive and negative ports)..　　

(4) Assemble the rotor: ① Insert the key on the pump shaft, and install the impeller (note: the direction of impeller blade bending is opposite to the rotation direction of the pump, and it must not be reversed). ⑦ Move the coupling by hand to check whether the pump rotates flexibly, and there should be no jamming or overweight.4~0. ④Add filler: a. Cover the pump cover of the pipeline booster pump, put on the bolts, and fasten the bolts well, and move the coupling while tightening, and find that the rotation is not flexible and adjust in time

Injection level gauge maintenance and maintenance: 　　1) Wash once a month.) attached to the level gauge. The parts inside the level gauge drop. If the output current value is abnormal, replace it with a new product or contact the factory staff of the liquid level gauge manufacturer. Use a three-output voltmeter to measure the output voltage between 24V and O/P. After the magnet is removed, the liquid level gauge should be open and the thermal resistance should be more than 10MΩ. If the output voltage is too low, the EXC wire should be removed.　　 7. If the power is still low, the signal converter is damaged. 4. 4. Please follow the operation manual to connect the 24V terminal of the signal converter to the 24V terminal of the indicator.　　 6. If it is found that the connection is incorrect, it should be modified according to the operation manual. It is forbidden to use any appliance to wash the pressure hole, so as not to damage the pressure sensitive diaphragm of the sensitive core.　　 8. The normal voltage should be about 2.) attached to the level gauge. First check whether the output power is connected correctly.　　 9. The normal voltage should be about 2. The color film flips 360 degrees, the magnetic field of the float is too strong, contact the factory staff to replace the float. Water accumulated in the level gauge.Fault detection of input liquid level gauge and how to solve it 1.

First check whether the output power is connected, if it is found that the connection is incorrect, it should be modified according to the operation manual.　　 2) When washing, first open the screw cap of the input level gauge iron tube, and carefully take out the level gauge; then remove the debris (such as aquatic plants, plankton, etc. If the output voltage returns to normal, it means that the magnetic yellow module is abnormal.　　 6. Item 2 should be confirmed to be normal first, and then connect a milliamp meter to the 4~20MA circuit to check whether the output current is normal. Liquid level gauge, how to solve the fault detection of the liquid level gauge 5. 3. Please follow the operation manual to connect the 24V terminal of the signal converter to the 24V terminal of the indicator. The output voltage should be between 13V and 36V.　　Injection level gauge maintenance and maintenance: 　　1) Wash once a month.　　 5) After washing, put the level gauge back into the iron pipe slowly, feel that the lower part of the iron pipe has been placed, and install the screw cap back to the original place. Use the output voltmeter to check the output voltage between IN and COM.　　Reinstall after unloading and washing, because the installation depth will change to some extent, you must refer to the liquid level gauge at the same level of the sluice again to correct the detection value of the secondary meter to ensure the accuracy of the sampling data.　　 (1) Please check whether there is a vibration motor or other vibrator level gauge in the tank environment. Please remove the accumulated water and dry it, confirm that the insulation of the line to the ground is more than 100MΩ, and finally complete the wiring construction according to the regulations, and indeed seal all the gap equity funds with caulk.5V.　　　

Injection level gauge fault detection and how to solve 　　 1. Two lines of input type liquid level indicator signal converter do not know how to receive the indicator. Use the output voltmeter to check the output voltage between IN and COM. Check whether the operation of the liquid level gauge is normal with an electric meter. .　　 2. The O/P terminal of the signal converter is connected to the AI ​​terminal of the indicator. Check whether the operation of the liquid level gauge is normal with an electric meter. Proximity level gauge does not operate. If it does not meet the above requirements A new proximity level gauge should be replaced.　　 4) When cleaning the pressure interface and pressure hole of the pressure transmitter, avoid using a brush or metal tool with excessive hardness to avoid damaging the sensitive core and the pressure interface thread. The parts inside the level gauge drop.　　Reinstall after unloading and washing, because the installation depth will change to some extent, you must refer to the liquid level gauge at the same level of the sluice again to correct the detection value of the Composite Pipe Suppliers secondary meter to ensure the accuracy of the sampling data. Item 2 should be confirmed to be normal first, and then connect a milliamp meter to the 4~20MA circuit to check whether the output current is normal.　　 2) When washing, first open the screw cap of the input level gauge iron tube, and carefully take out the level gauge; then remove the debris (such as aquatic plants, plankton, etc. The float drops to the bottom, the flag board has not returned to zero, the flag board can not keep up with the speed of the float drop, and a throttling device should be installed to slow down the liquid level rise and fall speed; The color film of the board will not be overturned, or the color film is chaotic.　　

7. When the magnet is close, the contact should be turned on and the thermal resistance should be less than 300MΩ.5V. If it still does not work properly after being powered on, please contact the factory staff. If there is a direct impact of the material, a baffle should be added to protect or avoid the cutting position. Make sure there is no magnetic body around and inside the body tube, and sweep it once with a magnet after cleaning to make the color consistent. Liquid level gauge, how to solve the fault detection of the liquid level gauge 5. If there is burnt smell, it means that the factory staff should be replaced with new products; 　　 (2) Confirm whether the specific gravity of the material is too light, and replace the large blade; The location is not suitable.　　 (2) Purchase other products to avoid falling of internal parts due to vibration. If the output voltage is abnormal, check the circuit or related liquid level gauge for abnormalities. There is no output from the input level gauge. The O/P terminal of the signal converter is connected to the AI ​​terminal of the indicator.　　 10.　　 9. If the output voltage is too low, the EXC wire should be removed. If there is a direct impact of the material, a baffle should be added to protect or avoid the cutting position. 3. If the output voltage returns to normal, it means that the magnetic yellow module is abnormal..　　 10. Proximity level gauge does not operate. Make sure there is no magnetic body around and inside the body tube, and sweep it once with a magnet after cleaning to make the color consistent. Use a three-output voltmeter to measure the output voltage between 24V and O/P.　　 2.　　 (1) Please check whether there is a vibration motor or other vibrator level gauge in the tank environment. If the output voltage is abnormal, check the circuit or related liquid level gauge for abnormalities. The color film flips 360 degrees, the magnetic field of the float is too strong, contact the factory staff to replace the float. Two lines of input type liquid level indicator signal converter do not know how to receive the indicator. When the magnet is close, the contact should be turned on and the thermal resistance should be less than 300MΩ.　　

3) When cleaning the pressure hole of the water level gauge, you can use trichloroethylene or alcohol to inject the pressure hole to half of its height for about 5 minutes, and then shake it slightly and repeat it many times until it is clean and clean. If it does not meet the above requirements A new proximity level gauge should be replaced. If the power is still low, the signal converter is damaged. Please remove the accumulated water and dry it, confirm that the insulation of the line to the ground is more than 100MΩ, and finally complete the wiring construction according to the regulations, and indeed seal all the gap equity funds with caulk. There is no output from the input level gauge. (1) First smell and see if there is burnt smell in the output power socket.　　 4) When cleaning the pressure interface and pressure hole of the pressure transmitter, avoid using a brush or metal tool with excessive hardness to avoid damaging the sensitive core and the pressure interface thread.　　 (2) Purchase other products to avoid falling of internal parts due to vibration. If it still does not work properly after being powered on, please contact the factory staff.

The float drops to the bottom, the flag board has not returned to zero, the flag board can not keep up with the speed of the float drop, and a throttling device should be installed to slow down the liquid level rise and fall speed; The color film of the board will not be overturned, or the color film is chaotic. (1) First smell and see if there is burnt smell in the output power socket. If the output current value is abnormal, replace it with a new product or contact the factory staff of the liquid level gauge manufacturer. After the magnet is removed, the liquid level gauge should be open and the thermal resistance should be more than 10MΩ. . Water accumulated in the level gauge. If there is burnt smell, it means that the factory staff should be replaced with new products; 　　 (2) Confirm whether the specific gravity of the material is too light, and replace the large blade; The location is not suitable.　　 5) After washing, put the level gauge back into the iron pipe slowly, feel that the lower part of the iron pipe has been placed, and install the screw cap back to the original place. The output voltage should be between 13V and 36V