GEB Permanent Magnet VFD Domestic Shield Circulator Pump Silent Heating & Hot Water Pump
1. Product Overview
GEB high-efficiency wet rotor shield circulator is small water circulation equipment for household plumbing heating, divided into 3-speed fixed basic model & permanent magnet VFD digital smart series. Widely used for apartment underfloor heating, gas wall-hung boilers, solar water heaters & villa whole-house hot water recirculation. Adopt ceramic graphite maintenance-free bearing, EEI0.23 top Class 1 energy efficiency, running noise as low as 38dB. Compatible liquid temperature 2~110℃, standard G1 internal thread installation, multiple heads from 2m to 12m for small apartments & large villas. VFD version equipped with LCD screen, support constant pressure / variable differential / constant flow intelligent speed regulation, timing & temperature trigger. Built-in dry run & overheat protection. Cataphoretic cast iron housing, 304 stainless steel optional, matched vibration bracket & spare parts for heating & hot water renovation.
Comparison: 3-Speed Fixed VS VFD Digital Pump
Comparison Item | 3-Speed Fixed Circulator | Permanent Magnet VFD Digital Pump |
|---|---|---|
Motor Type | Ordinary wet rotor asynchronous | Permanent magnet synchronous VFD |
Energy Class | EEI ≤0.27 Class 2 | EEI ≤0.23 Top Class 1 |
Adjustment | Manual 3 speed knob | 3 intelligent modes: Const P / Var DP / Const Flow |
Control Panel | Simple gear knob | LCD digital display, temp & timer setting |
Energy Saving | Basic saving | Auto low-power idle, 30%+ power cut |
Noise Level | ≤42dB | Ultra quiet ≤38dB |
Protection | Overload & overheat | Dry run + overheat + overload triple protection |
Suitable Area | Under 80㎡ small apartment heating | 80~300㎡ large flat & villa |
General Full Series Technical Specs
Category | Item | Standard Parameter |
|---|---|---|
Electrical | Input Voltage | AC220V 50Hz |
Insulation Class | F Class | |
IP Rating | IP44 | |
Power Range | 45W / 65W / 110W / 150W | |
Hydraulic | Liquid Temp | 2℃ ~ 110℃ |
Max Working Pressure | 10bar | |
Max Head | 2m / 4m / 6m / 12m | |
Max Flow | 0.6~7.5 m³/h | |
Running Noise | VFD ≤38dB / Fixed ≤42dB | |
Mechanical | Rotor Structure | Full wet rotor, no mechanical seal |
Bearing Material | Ceramic shaft + graphite thrust bearing | |
Housing | Cataphoretic cast iron (304 SS optional) | |
Installation Thread | Standard G1 internal thread | |
Durability | 500,000 failure-free test |
Optional Supporting Accessories
Accessory Name | Function Description |
|---|---|
External Temp Sensor | Auto start/stop circulation linked with water temp (VFD only) |
Wall Mount Bracket | Fix pump on wall to reduce pipe stress |
Rubber Vibration Pad | Cut vibration & wall resonance noise |
Check Valve | Prevent hot water backflow, maintain pipe pressure |
Thread Reducer | Adapt 6-point / 1.2-inch non-standard pipe renovation |
2 Eight Core Product Advantages
Ceramic Graphite Maintenance-Free Bearing, No Oil Replacement For Lifetime Full wet rotor design without mechanical seal leakage risk. Ceramic main shaft + graphite thrust bearing self-lubricate by transported clean water. Pass 500,000-cycle durability test, no disassembly maintenance within 10 years for home use.
EEI0.23 Class 1 VFD Motor Save Over 30% Power Permanent magnet synchronous VFD pump far more efficient than traditional 3-speed model. Auto power reduction during low load & standby to cut long-term heating electricity cost.
Ultra Low Noise ≤38dB, No Disturbance Near Bedrooms Fully enclosed wet rotor cavity + vibration damping fluid design, VFD version noise down to 38dB. Installed in bathroom or equipment room without affecting rest.
3 Intelligent Modes Fit All Plumbing Conditions Built-in constant pressure, variable differential, constant flow logic on digital panel. Auto match optimal RPM for small low-flow rooms & long villa pipelines to eliminate idle power waste.
Wide Temp Compatibility For Heating & Domestic Hot Water Work with 2℃ cold water up to 110℃ high heating water, one pump for winter floor heating & year-round hot water recirculation.
Triple Auto Safety Protection Prevent Pump Burn Built-in dry run, overheat & overcurrent detection. Auto power off when pipe empty or blocked to avoid pump damage, safe for elderly users.
Standard G1 Thread Fit Existing Pipes For Easy Renovation Universal 1-inch internal thread matches most floor heating & boiler pipes. No pipe cutting required for old hot water renovation, finish installation within 1 hour.
Dual Housing Material For Different Water Quality Standard cataphoretic cast iron anti-corrosion for tap water; customized 304 stainless housing for softened & slightly corrosive water to avoid rust blockage.
3 Four Main Application Scenarios
Residential Underfloor Heating: 80~300㎡ apartment water heating system;
Gas Wall-Hung Boiler: Matching circulation pump for boiler heating loop;
Solar Water Heater: Instant hot recirculation for rooftop solar system;
Large Villa: Multi-floor hot water circulation & small air source heat pump.
4 Standard Installation Requirements
Mount Direction: Motor horizontal only, forbid vertical upside-down installation;
Pipeline: Install vibration pad at inlet/outlet, fit small Y strainer at front end;
Wiring: Single-phase 220V 3-core cable, reserve switch for maintenance cut-off;
Anti-Freeze: Drain pump cavity if shutdown in winter to avoid cracking;
VFD Optional: Add temp sensor for auto sleep during vacant hours.
5 Simple Daily Maintenance
Quarterly: Clean sediment in front strainer;
Yearly: Check housing for tiny seepage (wet rotor design normally leak-free);
Long Idle: Empty internal water & cut power supply.
