GPD Series Circulation Pump
Compact inline circulator pump for hydronic heating, HVAC water circulation and domestic hot-water recirculation systems.
- Designed for closed-loop heating and cooling water circulation
- Compact inline structure for residential and light commercial installations
- Suitable for boiler loops, hot-water return lines and HVAC terminal systems
- OEM / ODM supply support for distributors, contractors and project buyers
Description & Applications
For heating loops, hot-water return lines and compact HVAC systems.
The GPD Series is a compact circulation pump range for building water systems that need steady flow through closed-loop heating, cooling or domestic hot-water recirculation lines. It is positioned for hydronic heating projects, HVAC circulation pump replacement, distributor programs and OEM pump supply where clear model selection and practical documentation matter.
Application Scenarios
Where buyers commonly use this pump
Residential Heating Systems
Closed-loop circulation for home heating, radiator loops and underfloor heating systems where compact installation is preferred.
Commercial HVAC Circulation
Water circulation support for heating and cooling systems in apartments, offices, shops and light commercial buildings.
Domestic Hot-Water Return
Hot-water recirculation lines in residential or commercial buildings where steady return flow is required.
For Buyers & OEM Projects
Share your heating, cooling or hot-water circulation requirements and we will help confirm a suitable GPD model and configuration.
Information Needed for Selection
Please provide the medium, required flow, head, voltage/frequency and working temperature. Connection size, installation length and control requirements are also helpful.
OEM / ODM Options
Branded packaging, nameplates and selected circulator configurations can be discussed after the model and application are reviewed.
MOQ & Samples
MOQ depends on the confirmed model. Larger pumps may be supplied from one unit; smaller models can be discussed as samples for qualified inquiries.
Documents & Certifications
After model and duty conditions are confirmed, relevant technical documents can be provided. Current certifications include CE, ISO and 3C; applicability is subject to the model and destination market.
Pump Selection
How to Select an HVAC Circulation Pump
Select a GPD circulation pump by matching the required flow and total head to the heating, cooling or hot-water loop. Confirm the circulating medium, temperature, connection size, installation length and local voltage/frequency before choosing a model.
For distributor or OEM projects, please also provide the destination market, quantity and any branding or packaging requirements.
- Required flow and total head
- Heating, cooling or hot-water application
- Medium temperature and connection size
- Voltage/frequency, quantity and OEM requirements
Technical Data
GPD Model and Parameter Table
Compare GPD model options by power, flow, head, current and voltage. Final model selection should be based on the actual system duty.
| Model | Input Power (W) | Output Power (W) | Flow (m3/h) | Head (m) | Rated Power (W) | Rated Current 115V (A) | Rated Current 230V (A) | Voltage (V) |
|---|---|---|---|---|---|---|---|---|
| GPD20-4S | 65 | 20 | 2.8 | – | 65/50/32 | 0.56/0.44/0.15 | 0.28/0.22/0.15 | 115 / 230 |
| GPD25-4S | 65 | 20 | 3.0 | – | 65/50/32 | 0.56/0.44/0.15 | 0.28/0.22/0.15 | 115 / 230 |
| GPD32-4S | 65 | 20 | 3.5 | – | 65/50/32 | 0.56/0.44/0.15 | 0.28/0.22/0.15 | 115 / 230 |
| GPD20-5S | 85 | 25 | 2.8 | – | 85/60/40 | 0.80/0.60/0.44 | 0.4/0.3/0.22 | 115 / 230 |
| GPD25-5S | 85 | 25 | 3.3 | – | 85/60/40 | 0.80/0.60/0.44 | 0.4/0.3/0.22 | 115 / 230 |
| GPD32-5S | 85 | 25 | 4.0 | – | 85/60/40 | 0.80/0.60/0.44 | 0.4/0.3/0.22 | 115 / 230 |
| GPD20-6S | 100 | 30 | 2.8 | – | 100/70/55 | 0.90/0.70/0.50 | 0.45/0.35/0.25 | 115 / 230 |
| GPD25-6S | 100 | 30 | 3.3 | – | 100/70/55 | 0.90/0.70/0.50 | 0.45/0.35/0.25 | 115 / 230 |
| GPD32-6S | 100 | 30 | 4.0 | – | 100/70/55 | 0.90/0.70/0.50 | 0.45/0.35/0.25 | 115 / 230 |
| GPD20-7S | 140 | 45 | 3.5 | – | 130/110/90 | 1.20/1.04/0.84 | 0.6/0.52/0.42 | 115 / 230 |
| GPD25-7S | 140 | 45 | 4.0 | – | 130/110/90 | 1.20/1.04/0.84 | 0.6/0.52/0.42 | 115 / 230 |
| GPD32-7S | 140 | 45 | 4.5 | – | 130/110/90 | 1.20/1.04/0.84 | 0.6/0.52/0.42 | 115 / 230 |
| GPD15-9S | 120 | 40 | 1.8 | – | 120/80/65 | 1.06/0.80/0.50 | 0.53/0.4/0.25 | 115 / 230 |
| GPD15-12S | 270 | 120 | 3.5 | – | 270/240/160 | 2.40/2.20/1.50 | 1.2/1.1/0.75 | 115 / 230 |
| GPD25-8S | 245 | 90 | 6.0 | – | 245/190/135 | 2.20/1.70/1.20 | 1.1/0.85/0.60 | 115 / 230 |
| GPD32-8S | 245 | 90 | 8.0 | – | 245/190/135 | 2.20/1.70/1.20 | 1.1/0.85/0.60 | 115 / 230 |
| GPD32-5SF | 145 | 60 | 8.0 | – | 145/135/95 | 1.30/1.20/0.90 | 0.65/0.6/0.45 | 115 / 230 |
| GPD32-8SF | 245 | 90 | 8.0 | – | 245/190/135 | 2.20/1.70/1.20 | 1.1/0.85/0.60 | 115 / 230 |
| GPD25-12S | 270 | 120 | 4 | – | 270/240/160 | 2.40/2.20/1.50 | 1.2/1.1/0.75 | 115 / 230 |
| GPD25-9 | 300 | 150 | 4 | 7 | – | 3.0 | 1.5 | 115 / 230 |
| GPD32-9 | 300 | 150 | 5 | 6.5 | – | 3.0 | 1.5 | 115 / 230 |
| GPD25-12L | 300 | 150 | 3.5 | 9 | – | 3.0 | 1.5 | 115 / 230 |
| GPD25-12 | 500 | 280 | 5 | 8 | – | – | 2.5 | 230 |
| GPD32-12 | 500 | 280 | 6 | 8 | – | – | 2.5 | 230 |
| GPD25-16 | 700 | 400 | 5 | 12.5 | – | – | 3.4 | 230 |
| GPD25-20 | 1000 | 600 | 8 | 16 | – | – | 4.9 | 230 |
| GPD32-9F | 300 | 150 | 5 | 7 | – | 3.0 | 1.5 | 115 / 230 |
| GPD32-12F | 500 | 280 | 5 | 9 | – | – | 2.5 | 230 |
| GPD40-4.5F | 300 | 150 | 8 | 3.2 | – | 3.0 | 1.5 | 115 / 230 |
| GPD40-6F | 500 | 280 | 12.5 | 4.5 | – | – | 2.5 | 230 |
| GPD40-12F | 700 | 400 | 8 | 10 | – | – | 3.4 | 230 |
| GPD40-16F | 1000 | 600 | 8 | 15 | – | – | 4.9 | 230 |
| GPD50-12F | 1000 | 600 | 15 | 9 | – | – | 4.9 | 230 |
| GPD50-16F | 1300 | 850 | 15 | 13 | – | – | 5.8 | 230 |
| GPD50-20F | 1300 | 850 | 12 | 14 | – | – | 5.8 | 230 |
| GPD65-5F | 700 | 400 | 18 | 3 | – | – | 3.4 | 230 |
| GPD65-8F | 700 | 400 | 20 | 5 | – | – | 3.4 | 230 |
| GPD65-10F | 1000 | 600 | 20 | 6.5 | – | – | 4.9 | 230 |
| GPD65-12F | 1300 | 850 | 25 | 7.5 | – | – | 5.8 | 230 |
| GPD25-9Z | 300 | 150 | 4 | 7 | – | 3.0 | 1.5 | 115 / 230 |
| GPD25-12Z | 500 | 280 | 5 | 8 | – | – | 2.5 | 230 |
| GPD20-12Z | 300 | 150 | 3 | 10 | – | 3.0 | 1.5 | 115 / 230 |
| GPD20-16Z | 500 | 280 | 3 | 13 | – | 5.0 | 2.5 | 115 / 230 |
| GPD25-16Z | 700 | 400 | 5 | 12.5 | – | – | 3.4 | 230 |
| GPD25-20Z | 1000 | 600 | 8 | 16 | – | – | 4.9 | 230 |
| GPD20-20Z | 700 | 400 | 5 | 16 | – | – | 2.5 | 230 |
| GPD20-26Z | 1000 | 600 | 6 | 20 | – | – | 4.9 | 230 |
| GPD20-35Z | 1300 | 850 | 7 | 22 | – | – | 5.8 | 230 |
Selection & OEM FAQ
GPD Circulation Pump FAQ
What is a GPD circulation pump used for?
GPD pumps are used for clean-water circulation in HVAC heating loops, compact cooling systems and domestic hot-water recirculation lines.
How do I choose the right GPD model?
Start with required flow and total head, then check medium temperature, connection size, installation length and local voltage/frequency.
Can GPD pumps be used for hot-water recirculation?
Select a compatible model based on the published temperature range and application conditions. Confirm the system duty before ordering.
Can you provide OEM or private-label circulation pumps?
Branded packaging, nameplates and selected configurations can be discussed after model, application, quantity and destination market are confirmed.
Send Your Duty Point for Model Selection
Share flow, total head, temperature and power supply to receive a GPD quotation.
REQUEST A GPD PUMP QUOTE