Chlorinated Water Piston Pump Selection
Today, I met a customer who asked how to choose a chlorinated water dosing pump. He provided the following information and specific requirements:
Medium: Chlorinated Water
Total Suspended Solids: 4.4mg/L
Total Dissolved Solids: 7289mg/L
Chlorine Content: 2969mg/L
Hydrogen Energy: 6.4ph
Relative Density (at 20C): 1.04477
Flow Range: 5500 BWPD
Pressure: 750psi
Temperature: 100-130 degrees Fahrenheit
Viscosity: 0.58 to 0.77 cP
Pressure: 0.94/2.2 psi
Pump API 610 12th Edition
Performance Test Sealing System API 682
NPSH Test Lubricating Oil System API 614
Disassembly (Strip Test) Flange End Connection ASME B16.5
Dye Penetrant Inspection - Impeller Face-to-Face Dimension ASME B16.10
Casing ASTM A182 Gr F53
Impeller ASTM A890 Gr 5A
Casing wear ring UNS S 32760
Shaft ASTM A276
Shaft sleeve TBC*
Interstage bushing UNS S 32760
Mechanical seal flange TBC*
Bearing bracket ASTM A216 WCB
Base plate ASTM A 36
Mechanical seal spring ASTM C276 / C4 / C22
Mechanical seal other metal parts ASTM 316 SS
Mechanical seal wetted parts INCONEL 625 / SDS
Manufacturer drawings and documents. Required
Assembled unit
O&M instructions
Cross-section view Mechanical seal drawing
Pump data sheet
Certification test curve instructions Wiring diagram Speed torque curve
Cold alignment curve data L & T vibration analysis Bill of materials
The motor nameplate rating shall be at least 110% of the pump rated power.
2) The pump shall have a continuous head rise from the rated point to the shut-off point with the head rise not less than 10% of the rated head.
3) The capacity at the end of the curve shall not be less than 120% of the rated capacity
4) The minimum continuous stable capacity shall not exceed 50% of the rated capacity.
5) The preferred working area of the pump should be 70% to 120% of the best efficiency flow of the provided pump.
After analysis by our technicians, we recommended our three-plunger high-pressure reciprocating pump to him
1. Pump model and name: three-plunger high-pressure reciprocating pump
2. Parameters: Inlet pressure: Pin>0.1Mpa; outlet pressure: Pout=5.0Mpa
Flow rate: Q=36M³/H (600L/min)
3. Model: 3DP130 (rated plunger thrust 7.8T)
4. Stroke: S=130mm
5. Plunger diameter: D=100mm (actual plunger thrust on crankshaft 4.4056T)
6. Pump speed: n=205r/min (volume coefficient 0.95)
7. Motor: N axis=63.4371kw; Matching: Y2-280S-4; 75KW-4 ordinary motor; 1460r/min;
8. Hard gear reducer deceleration, ZDY250-7.1, reduction ratio 1:7.1
9. Assembly form: fixed
10. Lubrication method: splashing
11. Material of flow element: 2507, zirconium oxide ceramic plunger
12. Liquid inlet: pipe diameter DN150, liquid outlet: pipe diameter DN125
If you also encounter the trouble of selection and don’t know how to choose a suitable pump, please consult CIXIFM winny, we will have professional technical engineers to choose for you:
Email: sales01@cxflowmeter.com
whatsapp: 008618049841995
