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Water return circulating pump

Wall Hung Boiler Hydraulic Pump for Heating and Cooling Systems

PBG Series Wet Rotor Circulation Pump with Auto Air Vent for Gas Boilers

PBG Series Compact Boiler Water Pump with Integrated Air Removal System

PBG Series Stainless Steel Shielded Pump for Clean Non Corrosive Liquids

PBG Series Energy Efficient Wet Rotor Pump for Wall Mounted Boilers

PBG Series Automatic Air Venting Circulation Pump for Hydronic Systems

PBG Series Maintenance Free Boiler Pump with Liquid Lubricated Bearings

PBG Series Domestic Heating System Pump for Clean Water Circulation

PBG Series Non Explosive Liquid Transfer Pump for Wall Hung Boilers

0.5HP 0.37KW Cast iron Centrifugal Water Pump Singal Phase Agriculture Surface Booster Electric Drainage

CDL and CDLF pumps are multifunctional solutions capable of transporting a wide range of liquids—including potable water, cooling fluids, and industrial chemicals—under varying operational conditions. The CDL series is optimized for non-corrosive applications, whereas the CDLF variant features enhanced corrosion resistance for mildly aggressive liquids.

Product Description

Water supply: Water filter and transport in Waterworks, boosting of main pipeline, boosting in high-rise buildings.

Industrial boosting: Process flow water system, cleaning system, high-pressure washing system, fire fighting system.

Industrial liquid conveying: Cooling and air-conditioning system, boiler water supply and condensing system,.machine-associated purpose, acids and alkali.

Water treatment: Ultrafiltration system, reverse osmosis system, istillation system, separator, swimming pool.

Irrigation: Farmland irgation, spray irrigation, dripping irrigation.

Thin, clean, non-flammable and non-explosive liquidcontaining no solid granules and fibers.

Liquid temperature:

Normal temperature type: -l5C ~+70′C,

Hot water type:-15C~+120C

Ambient temperature: up to +40C.

Altitude:up to 1000m

Full-enclosed air -blast two-pole standard motor

Protection class: 1P55

Insulation class: F

Standard voltage:50Hz: 1 x 220-230/ 240V

3 x 200-220/ 346-380V

3 x 220-240/ 380-415V

3 x 380-415V

Centrifugal Pumps

Application

Suitable for use with clean water and liquids that are not chemically aggressive towards the materials from which the pump is made.

As a result of their reliability and the fact that they are easy to use, these pumps are widely used in domestic and civil applications such as the distribution of water in combination with small and medium sized pressure sets, for transferring liquids and for the irrigation of gardens and allotments. The pump should be installed in an enclosed environment, or at least sheltered from inclement weather.

Motor

※ Two-pole induction motor(n=2850 r.p.m)

※ Insulation Class B

※ Protection IP44

※ Continuous service S1

※ Thermal protector for single phase

※ Single-phase 220V/50Hz, 60Hz if request

Three-phase 380V/50Hz, 60Hz if request

Operating conditions

※ Liquid temperature up to 60℃

※ Ambient temperature up to 40℃

※ Total suction lift up to 8m

ComponentConstruction

※ Pump body:

※ Pump support:

※ Motor housing:

※ Impeller:

※ Motor shaft:

※ Mechanical seal:Cast iron

Cast iron

Aluminum

Brass

Carbon steel, AISI304 SS if request

Ceramic/Graphite (0.5HP), SIC/Graphite

Specification

Model number	Voltage(V)	Frequency（HZ）	Rated power(KW)	Maximum discharge(m3/h)	Maximum lift(m)	Rated current(A)	Maximum suction(m)	Caliber(mm)	Rotational speed(r/min)
Model number	Voltage(V)	Frequency（HZ）	Rated power(KW)	Maximum discharge(m3/h)	Maximum lift(m)	Rated current(A)	Maximum suction(m)	Caliber(mm)	Rotational speed(r/min)
CPM130	220	50	0.37	4.2	14	2	9	25	2850
CPM158	220	50	0.75	4.8	20	4	9	25	2850
CPM180	220	50	1.5	7.8	28	7	9	30*25	2850
HFM/5AM	220	50	1.5	30	18	7	9	50	2850
Vertical multistage centrifugal pump CDLF-10			2.2	4	81				2900
Horizontal multistage centrifugal pump 32-160/22	380	50	2.2	24	31	4.69	7	50*32	2900

FAQs

1.How often should centrifugal pumps be maintained?
Recommended maintenance schedule:
Daily: Check for leaks, unusual noise/vibration
Weekly: Monitor bearing temperatures
Monthly: Inspect coupling alignment
Quarterly: Check seal condition
Annually: Full inspection including impeller, bearings, and wear rings
2.What causes cavitation in centrifugal pumps and how to prevent it?
Cavitation occurs when NPSH available (Net Positive Suction Head) is lower than NPSH required, causing vapor bubbles that collapse violently. Prevention methods:
Ensure adequate suction pressure
Keep pump near liquid source
Use larger diameter suction piping
Reduce fluid temperature if possible
Select pump with proper NPSH characteristics
3. How do I select the right centrifugal pump for my application?
Consider these factors:
Flow rate requirements (GPM or m³/h)
Total head needed
Liquid properties (viscosity, temperature, corrosiveness)
NPSH available
Power source compatibility
Material compatibility (cast iron, stainless steel, etc.)