| Quantity: | |
|---|---|
| PDF Export | |
####* * 1. Characteristics**
1. * * Strong corrosion resistance**
Made of 304, 316L or duplex stainless steel material, it can resist high temperature, chloride ion and acid-base medium corrosion, especially suitable for corrosive environments such as coastal and chemical industries.
2. * * Efficient and energy-saving**
The closed stainless steel impeller design optimizes hydraulic efficiency, and is paired with a variable frequency motor to achieve on-demand power regulation, with an energy-saving rate of up to 20% -30%.
3. * * Stable operation**
The pump shaft has high concentricity, excellent dynamic and static balance of the impeller, and operates with low vibration and noise (≤ 60 decibels).
4. * * Compact structure**
Horizontal modular design, coaxial inlet and outlet, can be directly installed in pipelines, saving space.
5. * * Reliable sealing**
Using mechanical seals or titanium alloy sealing rings, it is resistant to high temperatures (≤ 250 ℃) and leak proof, with a long service life.
####* * 2. Working principle**
1. * * Loop Drive**
By using centrifugal pumps (such as ISWR and CHL series) to push hot water from the supply pipe to the return pipe, a closed-loop system is formed to reduce the waiting time for cold water.
2. Temperature control mechanism**
-* * Temperature sensor * *: Real time monitoring of return water temperature, starting the cycle when it is lower than the set value (such as 50 ℃).
-* * Timed control * *: Run according to preset time periods (such as morning and evening rush hours) to reduce energy consumption.
3. * * Sealing and Safety**
The shaft seal is made of a composite material of silicon carbide, graphite, and rubber, with a protection level of IP54, suitable for high temperature and high humidity environments.
####3. Application Fields**
1. * * Civil and Commercial**
-Building water supply: High rise pressurization, hotel hot water circulation (such as ISWR type pump, suitable for temperature ≤ 120 ℃).
-HVAC system: Central air conditioning circulation, underfloor heating pressurization.
2. * * Industry and Chemical Industry**
-Food processing: Hot water circulation for sterilization pots (such as ISWH pumps used for spray sterilization).
-Chemical process: Corrosion resistant pumps transport acidic and alkaline media or high-temperature heat transfer oil (such as FJX type forced circulation pumps).
3. * * Special Scenarios**
-Medical and Environmental Protection: Hospital boiler water supply and sewage treatment system.
####4. Selection Guide**
1. * * Parameter matching**
-Flow rate and head: Calculated based on the number of water points and pipeline resistance, for example, a flow rate of ≥ 15L/min is required for 3 shower heads, and a head of ≥ 20 meters is required for a 6-story building.
-Medium temperature: For conventional hot water pumps (below 80 ℃), choose the ISW type, and for high temperature environments (above 120 ℃), choose the ISWR or GRG type.
2. * * Material selection**
-304 stainless steel is used in ordinary environments, while 316L or duplex stainless steel is selected for high corrosion scenarios.
3. * * Energy Efficiency Optimization**
-Priority frequency conversion pump (such as IHGD type), energy-saving by more than 30%; Equipped with intelligent temperature controller for remote management.
4. * * Brand recommendation**
-High end: Grundfos, Weile; Cost effectiveness: Olank CPS series, Yangtze River IHG series.
####5. Maintenance and Repair**
1. * * Common fault handling**
-Abnormal noise or vibration: Check for bearing wear or impeller blockage, with a replacement cost of approximately 200-500 yuan.
-Water temperature fluctuation: Clean the temperature sensor scale or calibrate the probe.
-Leakage: Use stainless steel welding rods to repair or replace the compression joint.
2. * * Daily maintenance**
-Clean the Y-shaped filter monthly to prevent impurities from clogging.
-Every year, use citric acid solution to circulate and remove scale to maintain thermal efficiency.
-Check the insulation resistance of the motor (>1M Ω) to avoid the risk of leakage.
3. * * Life extension techniques**
-Install a water softener to reduce water hardness and minimize scaling.
-Add antifreeze in low temperature areas during winter to prevent pipeline freezing and cracking.
####* * 1. Characteristics**
1. * * Strong corrosion resistance**
Made of 304, 316L or duplex stainless steel material, it can resist high temperature, chloride ion and acid-base medium corrosion, especially suitable for corrosive environments such as coastal and chemical industries.
2. * * Efficient and energy-saving**
The closed stainless steel impeller design optimizes hydraulic efficiency, and is paired with a variable frequency motor to achieve on-demand power regulation, with an energy-saving rate of up to 20% -30%.
3. * * Stable operation**
The pump shaft has high concentricity, excellent dynamic and static balance of the impeller, and operates with low vibration and noise (≤ 60 decibels).
4. * * Compact structure**
Horizontal modular design, coaxial inlet and outlet, can be directly installed in pipelines, saving space.
5. * * Reliable sealing**
Using mechanical seals or titanium alloy sealing rings, it is resistant to high temperatures (≤ 250 ℃) and leak proof, with a long service life.
####* * 2. Working principle**
1. * * Loop Drive**
By using centrifugal pumps (such as ISWR and CHL series) to push hot water from the supply pipe to the return pipe, a closed-loop system is formed to reduce the waiting time for cold water.
2. Temperature control mechanism**
-* * Temperature sensor * *: Real time monitoring of return water temperature, starting the cycle when it is lower than the set value (such as 50 ℃).
-* * Timed control * *: Run according to preset time periods (such as morning and evening rush hours) to reduce energy consumption.
3. * * Sealing and Safety**
The shaft seal is made of a composite material of silicon carbide, graphite, and rubber, with a protection level of IP54, suitable for high temperature and high humidity environments.
####3. Application Fields**
1. * * Civil and Commercial**
-Building water supply: High rise pressurization, hotel hot water circulation (such as ISWR type pump, suitable for temperature ≤ 120 ℃).
-HVAC system: Central air conditioning circulation, underfloor heating pressurization.
2. * * Industry and Chemical Industry**
-Food processing: Hot water circulation for sterilization pots (such as ISWH pumps used for spray sterilization).
-Chemical process: Corrosion resistant pumps transport acidic and alkaline media or high-temperature heat transfer oil (such as FJX type forced circulation pumps).
3. * * Special Scenarios**
-Medical and Environmental Protection: Hospital boiler water supply and sewage treatment system.
####4. Selection Guide**
1. * * Parameter matching**
-Flow rate and head: Calculated based on the number of water points and pipeline resistance, for example, a flow rate of ≥ 15L/min is required for 3 shower heads, and a head of ≥ 20 meters is required for a 6-story building.
-Medium temperature: For conventional hot water pumps (below 80 ℃), choose the ISW type, and for high temperature environments (above 120 ℃), choose the ISWR or GRG type.
2. * * Material selection**
-304 stainless steel is used in ordinary environments, while 316L or duplex stainless steel is selected for high corrosion scenarios.
3. * * Energy Efficiency Optimization**
-Priority frequency conversion pump (such as IHGD type), energy-saving by more than 30%; Equipped with intelligent temperature controller for remote management.
4. * * Brand recommendation**
-High end: Grundfos, Weile; Cost effectiveness: Olank CPS series, Yangtze River IHG series.
####5. Maintenance and Repair**
1. * * Common fault handling**
-Abnormal noise or vibration: Check for bearing wear or impeller blockage, with a replacement cost of approximately 200-500 yuan.
-Water temperature fluctuation: Clean the temperature sensor scale or calibrate the probe.
-Leakage: Use stainless steel welding rods to repair or replace the compression joint.
2. * * Daily maintenance**
-Clean the Y-shaped filter monthly to prevent impurities from clogging.
-Every year, use citric acid solution to circulate and remove scale to maintain thermal efficiency.
-Check the insulation resistance of the motor (>1M Ω) to avoid the risk of leakage.
3. * * Life extension techniques**
-Install a water softener to reduce water hardness and minimize scaling.
-Add antifreeze in low temperature areas during winter to prevent pipeline freezing and cracking.