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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

Vertical multistage centrifugal pump CDLF-10

The CDL/CDLF series is a versatile range of pumps designed to handle various liquids, from clean water to industrial fluids, across different temperatures, flow rates, and pressure conditions. The CDL type is suitable for non-corrosive liquids, while the CDLF model is engineered for slightly corrosive media.

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

These pumps are designed for clean water and non-corrosive liquids compatible with the pump's construction materials. Known for their reliability and user-friendly operation, they are commonly used in residential and commercial applications including:

Water distribution in small-to-medium pressure systems

Liquid transfer operations

Garden and agricultural irrigation

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. What is a multi-stage centrifugal pump?
A multi-stage centrifugal pump consists of two or more impellers arranged in series within a single casing. Each impeller (stage) increases the fluid pressure progressively, making it ideal for high-pressure applications such as boiler feed, water supply, and industrial processes.
2. What are the advantages of multi-stage pumps over single-stage pumps?
Higher pressure output – Multiple stages allow for greater pressure buildup.
Energy efficiency – More efficient than single-stage pumps for high-head applications.
Compact design – Achieves high pressure in a smaller footprint compared to single-stage alternatives.
Flexibility – Can handle clean or slightly contaminated liquids depending on design.
3. What types of liquids can multi-stage centrifugal pumps handle?
They are primarily designed for clean, low-viscosity liquids such as:
Water (potable, industrial, or hot water)
Light oils
Coolants
Chemically neutral liquids (with compatible materials)
Note: Abrasive or highly viscous fluids may require special designs.