ISW cast iron horizontal pipeline centrifugal pump

1ISW horizontal pipeline booster pumpProduct Introduction
ISW horizontal pipeline booster pumpIt is an ideal horizontal pump product designed by Dongquan Pump Industry based on the performance parameters of IS and IR centrifugal pumps and optimized using domestic hydraulic models. Based on different usage temperatures, media, etc., ISWR hot water pumps, ISWH corrosion-resistant chemical pumps, and ISW oil pumps are derived from the ISW type. This series of horizontal pipeline pumps has the advantages of energy saving, low noise, and reliable performance

IIISW horizontal pipeline booster pumpProduct Features:
Smooth operation: The absolute concentricity of the pump shaft and excellent dynamic and static balance of the impeller ensure smooth operation without vibration.
Drip proof: Hard alloy seals made of different materials ensure that there is no leakage during the transportation of different media.
Low noise: The water pump supported by two low-noise bearings runs smoothly, with almost no noise except for weak motor noise.
Low failure rate: The structure is simple and reasonable, and the key parts are of good quality; The continuous working time of the supporting machine has been greatly improved.
Easy maintenance: Replacing seals and bearings is simple and convenient.
More land saving: The exit can be arranged in three directions: left, right, and up, which is convenient for pipeline layout and installation, saving space.
IIIISW horizontal pipeline booster pumpMain purpose:
1. ISW cast iron horizontal pipeline centrifugal pump is used for conveying clean water and other liquids with physical and chemical properties similar to clean water. It is suitable for industrial and urban water supply and drainage, high-rise building pressurized water supply, garden sprinkler irrigation, fire protection pressurization, long-distance transportation, HVAC refrigeration cycle, bathroom and other cold and warm water circulation pressurization and equipment matching. The operating temperature is T ≤ 80 ℃.
2. The ISWR horizontal hot water pump is widely used in industries such as metallurgy, chemical engineering, textiles, papermaking, as well as hotels, restaurants, and other boiler hot water pressurized circulation transportation and urban heating systems. The ISWR type is suitable for temperatures up to 120 ℃.
3. The LWH horizontal chemical pump is used to transport liquids that do not contain solid particles, are corrosive, and have a viscosity similar to water. It is suitable for industries such as petroleum, chemical, metallurgical, power, papermaking, food and pharmaceuticals, and synthetic fibers. The operating temperature ranges from -20 ℃ to+120 ℃.
4. LWB horizontal pipeline oil pump is used to transport oil products such as gasoline, kerosene, diesel, or flammable and explosive liquids. The temperature of the transported medium is -20 ℃ to+120 ℃.
4ISW cast iron horizontal pipeline centrifugal pumpWorking conditions:
1. The maximum working pressure of the system is 1.6MPa, which means that the pump suction pressure+pump head is ≤ 1.6MPa (if the working pressure of the pump system is greater than 0.6MPa, it should be separately specified when ordering, so that other materials can be used when manufacturing the overcurrent components and connecting components of the pump);
2. The conveying medium is clear water or other liquids with physical and chemical properties similar to clear water;
3. Environmental temperature ≤ 40 ℃, altitude ≤ 1000m, relative humidity ≤ 95%.
5、 ISW horizontal pipeline centrifugal pump model meaning:
For example: ISW100-160 (I) AB
ISW horizontal pipeline centrifugal pump (derived from ISWR horizontal hot water pipeline centrifugal pump ISW horizontal explosion-proof pipeline centrifugal pump)
ISWH Horizontal Stainless Steel Pipeline Centrifugal Pump ISWHB Horizontal Stainless Steel Explosion proof Pipeline Centrifugal Pump)
100- nominal diameter of pump inlet and outlet (mm)
160- nominal diameter of impeller (mm)
I-Traffic Classification
AB impeller undergoes primary and secondary cutting
6、 Structural diagram of ISW cast iron horizontal pipeline centrifugal pump:

1. Electric motor: directly connected to the water pump to transmit power.
2. Pump shaft: coaxial with the motor, extending the shaft to ensure the concentricity of the shaft and smooth operation of the pump. No noise or vibration, enhancing the service life.
3 Water blocking rings: prevent water from entering the motor due to sealing leakage.
4. Mechanical seal: made of materials such as stainless steel, tungsten carbide, fluororubber, etc. Balanced high-temperature resistance. High pressure mechanical seal has a long operating life, no leakage, no wear on the shaft, no accumulation of water and dirt, ensuring a clean working environment.
5 pressure plugs: pressure gauges can be installed to visually monitor the normal and efficient operation of the pump
6. Pump body: The pressure relief plug and suction chamber are designed with a good hydraulic model, which is both beautiful and efficient. They are equipped with installation feet for easy installation and stable operation.
7. Air release plug: When filling the pump, exhaust the air inside the pump to ensure the normal start of the pump.
8 impellers: Designed with a good hydraulic model, they have the characteristics of high efficiency and good stability.

7ISW cast iron horizontal pipeline centrifugal pumpInstallation precautions:
1. Before installation, carefully check whether there are any hard objects inside the pump body to avoid damaging the impeller and pump body during operation.
2. During installation, pipeline management should not be added to the pump to prevent deformation and affect normal operation.
3. Tighten the anchor bolts to prevent vibration during start-up from affecting the performance of the pump.
4. Install regulating valves on the inlet and outlet pipelines of the pump, and install pressure gauges near the pump outlet to control the pump's operation within rated conditions and ensure its normal use.
5. If a check valve is installed in the discharge pipeline, it should be installed outside the gate valve.
6. The installation methods of pumps are divided into rigid connection installation and flexible connection installation.
8ISW horizontal pipeline booster pumpInstallation method:

Rigid installation	Soft installation
1. Imported ball valve 2. Flexible joint 3. Straight pipe 4. Export gate valve 5. Pump 6. Base 7. Cement pedestal	1. Imported ball valve 2. Flexible joint 3. Straight pipe 4. Export gate valve 5. Pump 6. Base 7. JGD type shock absorber 8. Cement pedestal

9ISW horizontal pipeline booster pumpStart and Stop
（1） Preparation before starting
1. Pull and rotate the motor fan blades by hand, and the impeller should have no jamming or grinding phenomenon, and rotate flexibly.
2. Open the inlet valve, open the exhaust valve to fill the entire pump chamber with liquid, and then close the exhaust valve.
3. Manually rotate the pump shaft to allow lubricant to enter the mechanical seal end face.
4. Tap the motor to confirm if the steering is correct.
（2） Start up and operation
1. Fully open the inlet valve and close the outlet pipeline valve.
2. Connect the power supply, gradually open the valve on the discharge pipeline when the pump reaches normal speed, and adjust it to the desired working condition.
3. Pay attention to the instrument readings and check if the shaft seal leakage is normal. The mechanical seal leakage should be ≤ 3 drops/minute. Check if the temperature rise at the motor and bearing is ≤ 70 ℃. If any abnormal situation is found, it should be dealt with in a timely manner.
（3） Parking
1. Gradually close the valve of the discharge pipeline and cut off the power supply.
2. Close the inlet valve.
3. If the ambient temperature is below 0 ℃, the liquid inside the pump should be drained to prevent freezing and cracking.
4. If the pump is not in use for a long time, it should be disassembled, cleaned, and kept under management.
10、 Dongquan Pump IndustryISW horizontal pipeline booster pumpMaintenance of:
（1） Maintenance and upkeep during operation
1. The imported pipeline must be filled with liquid, and the pump is prohibited from running for a long time in a cavitation state.
2. Regularly check the motor current value and ensure it does not exceed the rated current of the motor.
3. After long-term operation of the pump, if the noise and vibration of the unit increase due to mechanical wear, it should be stopped for inspection, and vulnerable parts can be replaced if necessary. The overhaul period of the unit is generally one year.
（2） Mechanical seal maintenance and upkeep
1. Mechanical seal lubrication should be clean and free of solid particles.
2. Mechanical seals are strictly prohibited from working under dry grinding conditions.
3. Before starting, the pump (motor) should be turned a few times to avoid sudden starting causing damage to the sealing ring.
4. The allowable deviation for seal leakage is 3 drops/minute, otherwise maintenance should be carried out.
EleventhISW horizontal pipeline booster pumpTroubleshooting: