Chlorinated water pump selection

Email: sales01@cxflowmeter.com

whatsapp: 008618049841995

Today we met a customer who needed to consult how to choose a chlorinated water pump. 

He provided the following information and specific requirements:

Media: 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 (peel 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 careful analysis by our technicians, the following parameters were recommended to him for the three-plunger 

high-pressure reciprocating pump

1. Three-plunger high-pressure reciprocating pump

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 are also troubled by pump selection and don’t know how to choose a suitable dosing pump, 

please consult CIXIFM winny. We will have professional technical engineers to choose for you:

Email: sales01@cxflowmeter.com

whatsapp: 008618049841995