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| Email: | sales@sanchangpump.com |
| Hotline： | +86 133 0748 1676 |
| +86 193 1300 1794 | |
| Mobile： | +86 133 0748 1676 |
| Wechat： | +86 193 1300 1794 |
| Address： | No.517,Xiangfu Road |
| Yuhua District, | |
| Changsha City | |
| Hunan Province, P.R.C |
SAP type single-stage double-suction mid-open centrifugal pump
Classification:
BB1 Double Suction Split Case Pump
SAP type single-stage double-suction mid-open centrifugal pump
Water conservancy industry
Urban water supply
Electric power industry
Petrochemical industry
Key words:
water pump
Head range: H = 9.5~305m
Conveying temperature:-20 ℃ to 80 ℃
Inlet pressure: 0.6MPa
Sealing form: packing seal, mechanical seal
Water pump material: HT200, HT250, QT600, ZG, 304, 316, 316L, 317L, 904L, CD4-MCu, etc
Hotline:
- Product Description
- Performance Parameter
- Installation Drawings
- Installation And Use
- Faults And Solutions
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- Commodity name: SAP type single-stage double-suction mid-open centrifugal pump
Flow range: Q = 90~6300 m3/h<br>Head range: H = 9.5~305m<br>Conveying temperature:-20 ℃ to 80 ℃<br>Inlet pressure: 0.6MPa<br>Sealing form: packing seal, mechanical seal<br>Water pump material: HT200, HT250, QT600, ZG, 304, 316, 316L, 317L, 904L, CD4-MCu, etc<br /></br></br></br></br></br>
SAP-type single-stage double-suction split case centrifugal pump is used for conveying medium temperature is -20 ℃ to 80 ℃, suitable for conveying all kinds of industrial water, domestic water, tap water and water conservancy projects, farmland irrigation and drainage and other purposes.
SAP-type single-stage double-suction open-type centrifugal pump is a new type of water pump modified and expanded on the basis of the advanced technology of SA-type pump absorbing and digesting the same type of water pump.
Widely used in urban water supply and drainage, power stations, industrial process system of water intake, pressure, farmland irrigation and drainage and various water conservancy projects, petrochemical projects.
Structure Description
The SAP type pump is installed horizontally, the suction inlet and the discharge outlet are both below the center line of the pump shaft, and the pump body is horizontally open. It is not necessary to remove the inlet and outlet water pipelines during maintenance.
The SLA type of the same kind is installed vertically, the suction port and the discharge port are both in the horizontal direction, and the separate surfaces of the pump body and the pump cover are vertically separated on the axis center line..
Bearing: both ends of the pump are rolling bearing support rotor parts, thin oil grease lubrication.
Shaft seal: 1, soft packing seal; 2, mechanical seal.
The double-suction sealing ring is used to reduce the water leakage of the water pump pressure chamber back to the suction chamber.
Rotation direction
From the motor end, the pump rotates counterclockwise, and can also support clockwise rotation according to user requirements.
Use
SAP type single-stage double-suction centrifugal pump, suitable for factories, cities, mines, power stations, farmland, water conservancy projects and other fields. It is used to transport clear water without solid particles or other liquids with physical and chemical properties similar to water. The temperature of the transported medium is 0 ℃ ~ 80 ℃, and the maximum allowable inlet pressure is 0.6MPa.
Model Description
Example: 10 SAP-6A;
10-Pump inlet diameter divided by 25 (250mm suction inlet diameter)
SAP-SA improvement of the pump;
6-the divisor m of the specific number of revolutions divided by 10;
A- impeller outer diameter change.
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Flow range: Q = 90~6300 m3/h
Head range: H = 9.5~305m
Conveying temperature:-20 ℃ to 80 ℃
Inlet pressure: 0.6MPa
Sealing form: packing seal, mechanical seal
Water pump material: HT200, HT250, QT600, ZG, 304, 316, 316L, 317L, 904L, CD4-MCu, etc
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Assembly and disassembly of pump
1. Assemble rotor components: for packing pumps, install impeller, shaft sleeve, shaft sleeve nut, packing ring, packing, packing gland, water retaining ring, bearing components, double suction seal ring, and then install coupling. For machine-sealed pumps, the impeller, shaft sleeve, machine-sealed blocking sleeve, machine-sealed moving ring, static ring, machine-sealed gland and bearing parts are installed in sequence, and double-suction sealing ring is installed, and then the coupling is installed.
2. Check the radial runout of the outer circle of the sealing part of the impeller on the rotor part and the outer circle of the shaft sleeve respectively.
3. Install the rotor parts and studs on the pump body, install the bearing body gland, adjust the axial position of the impeller with the shaft sleeve nut to the middle of the pump body flow passage, and fix it. And the bearing body gland is fastened by fixing screws.
4. Put the paper pad on the middle opening surface, cover the pump cover, tighten the screw tail cone pin, and tighten the pump cover nut. For the packing pump, do not press the packing too tightly, the packing too tightly will make the shaft sleeve heat, while the energy consumption increases, do not press too loose, too loose will make the liquid leakage, the pump efficiency is reduced. After the assembly is completed, rotate the pump shaft by hand without rubbing, and the rotation is relatively smooth and even. Disassembly may be performed in reverse of the assembly sequence described above.
Pump Installation Precautions
1. Check the pump and motor should be no damage.
2. The installation height of the pump, plus the hydraulic loss of the suction pipeline, and its speed energy, shall not be greater than the allowable suction vacuum height value specified in the sample. The size of the foundation shall be in accordance with the installation size of the pump unit.
3. Installation sequence
Put the water pump and motor on the anchor bolt, put on the nut and place it on the concrete foundation with the anchor bolt hole reserved.
Use the method of adjusting the wedge pad to correct the level and correct the coaxiality of the pump and the motor shaft. Then fill all anchor bolt holes with concrete.
(2) After the concrete is dry and solid, correct the coaxiality between the pump and the motor shaft, and correct it on the outer circle of the two couplings, with an error of not more than 0.1mm. End machine clearance along the circumference of the non-uniformity tolerance of 0.3mm. After tightening the anchor nut, check the calibration accuracy, and then fill the bottom of the motor and pump foot with concrete, but there must be space around the wedge block.
(3) After checking that the steering of the motor is consistent with the steering of the water pump, install the coupling pin of the coupling.
4. The inlet and outlet pipes shall be supported by another bracket, and the pump body shall not be supported.
5. The joint surface between the water pump and the pipeline should ensure good air tightness, especially the inlet and outlet pipelines must ensure strict air leakage, and there should be no possibility of air storage on the device.
6. If the water pump is installed above the inlet water level, in order to start the irrigation, the bottom valve should be installed and the method of vacuum pumping can also be used.
The above is the installation method and requirements of the pump unit without a common base. For the installation of the pump unit with a common base
Refer to the above method.
7. Between the water pump and the outlet pipe, gate valves and check valves are generally required (those with a lift of less than 20 meters are not required), and the check valves are installed behind the gate valves.
Start, stop and run of pump
1. Start and stop:
Before starting: Rotate the rotor of the pump, it should be smooth and even.
(2) Close the outlet gate valve and inject water into the pump (if there is no bottom valve, use the vacuum pump to draw water). Ensure that the pump is full of water and there is no air reservoir.
(3) If a vacuum gauge or pressure gauge is installed on the pump, close the cock connected to the pump and then start the motor. After the speed is normal, open it again, and then gradually open the outlet gate valve. If the flow rate is too large, close the valve gate appropriately for adjustment. Otherwise, open the gate valve when the flow rate is too small.
(4) Tighten the compression nut on the packing gland evenly to make the liquid leak out in drops, and pay attention to the temperature rise at the packing cavity.
(5) When stopping the operation of the water pump, first close the cock of the vacuum gauge and the pressure gauge and the gate valve on the outlet pipe, and then turn off the power of the motor. If the temperature of the environment is low, the lower part of the pump body should be The square screw plug is opened to remove the remaining water to avoid freezing and cracking.
(6) When it is stopped for a long time, the water pump should be disassembled, the water on the parts should be dried, and the processed surface should be coated with anti-rust oil for storage.
2. Operation:
(1) The maximum temperature of the water pump bearing should not exceed 750C.
(2) The amount of calcium-based butter used to lubricate the bearing should account for 1/3 1/2 of the bearing body space and should be replaced regularly.
(3) when the packing is worn, the packing gland can be properly pressed, and if it is worn too much, it should be replaced. Machine seal generally does not wear, life up to one year.
(4) Regularly check the elastic coupling components and pay attention to the temperature rise of the motor bearing.
(5) During operation, if noise or other abnormal sounds are found, stop the machine immediately, check the cause and eliminate it.
(6) The speed of the water pump shall not be increased arbitrarily, but the speed can be reduced.
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Hunan Sanchang Pump Co., Ltd.
| Email: | sales@sanchangpump.com |
| Hotline: | +86 133 0748 1676 |
| +86 193 1300 1794 | |
| Mobile/wechat: | +86 133 0748 1676 |
| +86 193 1300 1794 | |
| Address: | No.517,Xiangfu Road, Yuhua |
| District, Changsha City | |
| Hunan Province, P.R.C |
