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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

0102030405

AK Series Self-priming Pumps for Domestic use 0.37KW Singal Phase 220V/50Hz

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

self-priming pumps

Product description

This high-performance self-priming pump is specifically designed for clean water applications, offering reliable liquid transfer for various household and gardening needs. Engineered to handle non-abrasive, chemically neutral water, the pump features an automatic priming capability that eliminates the need for manual filling, making it exceptionally user-friendly for residential users.

Key Features and Benefits

Self-priming design achieves quick startup with priming heights up to 8 meters, ensuring immediate water flow without complex preparation
Integrated flap-check valve maintains prime retention and prevents backflow, enhancing system efficiency and reducing energy consumption
Stable pressure maintenance delivers consistent water output (1.0-3.0 bar adjustable) for seamless operation with water heaters and household appliances
Energy-efficient operation with optimized impeller design reduces power consumption by up to 20% compared to conventional models
Compact and lightweight construction (6.5kg) allows for flexible installation in tight spaces

Ideal Applications Include:

Domestic water pressure boosting systems

Garden irrigation and allotment watering

Small agricultural water distribution

Water circulation for residential heating systems

Household water transfer and storage tank filling

Technical Specifications

Materials: Stainless steel shaft, brass impeller, and corrosion-resistant polymer components
Max. Liquid Temperature: +40°C (continuous operation)
Particle Tolerance: <0.1mm suspended solids
Motor Protection: IP54 rated for indoor/sheltered outdoor use
Noise Level: <55dB for quiet household operation

Installation Requirements

For optimal performance and longevity, the pump should be installed in a dry, well-ventilated environment protected from direct weather exposure. The unit requires proper grounding and should be mounted on a stable, vibration-absorbing surface. Periodic maintenance (annual inspection and seal checks) is recommended to maintain peak efficiency.

Application

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

They are easy to use and are economical, they are ideal for domestic use and in particular for distributing water in combination with small pressure sets and for the irrigation of gardens and allotments. The pump comes complete with a flap-check valve.

Keep the water pressure stable to let water heater normally working.

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

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

Operating conditions

※ Liquid temperature up to 80℃

※ Ambient temperature up to 40℃

※ Total suction lift up to 9m

ComponentConstruction

※ Pump body:

※ Pump support:

※ Motor housing:

※ Impeller:

※ Motor shaft:

※ Mechanical seal:Cast iron + AISI304 SS insert

Cast iron (electrophoresis) + AISI304 SS insert

Aluminum

Brass

AISI304 SS

Ceramic/Graphite

Specification

Model number	Voltage(V)	Frequency（HZ）	Rated power(KW)	Rated flow(m3/h)	Maximum lift(m)	Rated current(A)	Maximum suction (m)	Diameter (mm)	Speed (r/min)
Model number	Voltage(V)	Frequency（HZ）	Rated power(KW)	Rated flow(m3/h)	Maximum lift(m)	Rated current(A)	Maximum suction (m)	Diameter (mm)	Speed (r/min)
ZDB-35	220	50	0.37	2.1	50	2.5	9	25	2850
ZDB-45	220	50	0.55	2.4	50	4	9	25	2850
ZDB-65	220	50	0.75	3	60	5	9	25	2850
AK130	220	50	0.37	1.9	35	2	9	25	2850

FAQs

1.Q: What types of pumps do you offer?
A: We supply centrifugal pumps, submersible pumps, shield pumps, and more, with various power options (electric, diesel, solar).
2.Q: What are your payment terms?
A: T/T , L/C, or PayPal/Wise for small orders.
3.Q: Do you offer urgent production for rush orders?
A: Yes, expedited service is available with an additional fee.
4.Q: What is your warranty policy?
A: 12–24 months warranty, covering manufacturing defects.