Vertical Inline Single & Multistage Centrifugal Pump HVAC Water Circulation Booster Pump
1. Product Overview
Full inline pump series includes two core product lines: single-stage circulation pump & vertical multistage booster pump. All adopt coaxial inline inlet/outlet design to be directly installed on pipeline without base reconstruction, fully covering HVAC machine room, building water supply & industrial fluid transmission.
Single-stage pumps focus on large flow chilled & hot water circulation for central air conditioning and district heating. Multistage pumps adopt modular stainless multi-impeller to deliver high head for high-rise water supply, water treatment & boiler feed water. Fixed speed & integrated permanent magnet VFD versions available, IE5 ultra-high efficiency motor with Class 1 MEI rating. Cast iron / 304 / 316 stainless steel optional, SiC hard mechanical seal, compatible liquid temp -40℃ ~ 180℃. Built-in triple motor protection, VFD models support constant pressure / differential logic, matched CU control panel for building BMS connection. Widely applied in commercial buildings, residential water supply & industrial fluid projects.
Comparison: Single Stage VS Multistage Pump
Comparison Item | Vertical Single Stage Pump | Vertical Multistage Pump |
|---|---|---|
Hydraulic Structure | Single impeller single stage | Modular stacked stainless multi-impeller |
Flow Range | 6 ~ 3765 m³/h | 0.8 ~ 180 m³/h |
Max Head | 140 m | 480 m |
Max Working Pressure | 16 / 25 bar dual options | Up to 50 bar |
Liquid Temperature | -40℃ ~ 150℃ | -40℃ ~ 180℃ |
Standard Material | Cast iron casing, SS impeller | CR cast iron; CRI AISI304; CRN AISI316 full SS |
Motor Type | TP fixed IE4 / TPE integrated IE5 PM VFD | CR fixed / CRE built-in MLE PM VFD |
Core Working Condition | Large flow HVAC cooling & heating circulation | Low flow high pressure boost, water supply & water treatment |
Typical Projects | Shopping mall & office central air, district heating | High-rise secondary water, RO pure water, boiler feed |
Single Stage Pump Full Specifications
Series | Motor Type | Max Flow(m³/h) | Max Head(m) | Standard Pressure | Liquid Applicable |
|---|---|---|---|---|---|
TP100 Basic | IE4 asynchronous fixed | 564 | 105 | 16bar | Cold & hot clean water |
TP300 High Pressure | High power fixed | 3765 | 140 | 25bar | High temp heating water |
TPE2 Intelligent VFD | MGE IE5 PM | 564 | 96 | 16bar | AC chilled water, anti-freeze liquid |
TPE3 Premium VFD | Built differential sensor | 564 | 96 | 16bar | Building constant pressure loop |
TPD Twin Pump | Two TPE parallel standby | Custom flow | Same as single | 16bar | 24/7 machine room 1+1 backup |
Multistage General Technical Specs
Category | Item | Standard Parameter |
|---|---|---|
Hydraulic Performance | Flow Range | 0.8 ~ 180 m³/h |
Single Stage Head | 20~32m, max 480m by stacking stages | |
Max Working Pressure | 50bar | |
Liquid Temp Range | -40℃ ~ +180℃ | |
Material Grades | CR: Cast iron casing + SS impeller | |
CRI: Full AISI304 stainless steel | ||
CRN: Full AISI316 acid & seawater resistant | ||
Motor Configuration | CR: Standard asynchronous fixed motor | |
CRE: Built-in MLE IE5 PM VFD motor | ||
Seal Structure | Silicon Carbide double face mechanical seal | |
Built-In Protection | Overload, overheat, dry run auto shutdown | |
Control Expansion | Compatible CU352 / CIM communication module for BMS |
Optional Intelligent Control Accessories
Model | Equipment Name | Core Function |
|---|---|---|
CU302 | Single Pump Constant Pressure Controller | Constant differential / flow regulation for VFD pump |
CU352 | Multi-Pump Parallel Cabinet | Energy-saving rotation for 2~8 pumps |
CIM Communication Module | BMS Protocol Gateway | Modbus / BACnet building docking |
Pressure Buffer Tank | Stabilization Accessory | Reduce frequent pump startup |
Temp Sensor | Temperature Link Probe | Heating system interlock control |
2 Ten Core Product Advantages
Coaxial Inline Pipeline Design, No Pipeline Renovation Inlet & outlet on same horizontal line, directly connect original pipes without base adjustment, shorten renovation cycle for old HVAC energy upgrade.
IE5 PM VFD Motor, 40% Power Saving Above MEI Class 1 Grundfos self-developed MGE/MLE permanent magnet motor equipped on TPE/CRE series, cut power consumption by 40% vs conventional asynchronous pumps with long-term energy saving for large machine rooms.
Dual Full-Series Coverage, One-Stop Selection For All Working Conditions TP single stage for large flow HVAC circulation; CR multistage for high-pressure water supply & water treatment, one brand covers two core machine room demands.
Wide Temp Liquid Compatibility, For Cooling & High-Temp Heating Support -40℃ anti-freeze chilled water up to 180℃ boiler hot water, universal for heating, cooling & industrial high-temp systems.
Graded Anti-Corrosion Materials For All Water Quality Cast iron CR/TP for regular tap water; AISI304 CRI for softened water; AISI316 CRN for seawater & mild chemical fluid.
SiC Hard Seal Double Face Design, Wear & Leak Resistant Silicon carbide mechanical seal withstands minor sediment & high temp, service life doubled compared with graphite seal.
Triple Built-In Motor Safety Protection Factory integrated overload, overheat & dry run detection, auto power off when liquid shortage to avoid motor burnout.
TPD Twin 1+1 Backup For Non-Stop Operation Dual parallel pump structure, auto switch if single unit fails, ideal for hospital & data center 24/7 air conditioning systems.
Multiple Intelligent VFD Operation Logic TPE/CRE support constant differential, constant flow & night sleep mode, auto low speed under light load to eliminate idle power waste.
Standard BMS Communication Expansion Matched CU control cabinet & CIM gateway, support Modbus/BACnet for seamless remote monitoring of office & hospital building automation platforms.
3 Five Main Application Scenarios
1 Commercial HVAC Machine Room: Chilled & heating water circulation for malls, offices & hotels (TP/TPE primary);
2 High-Rise Residential Water Supply: Secondary building water pressure boost (CR/CRE multistage);
3 Water Treatment Industry: RO reverse osmosis pure water high pressure delivery (CRN SS model);
4 Industrial Process: Boiler feed, equipment cooling & mild chemical liquid transfer;
5 Public Building Critical Systems: Hospital, exhibition & data center 24h 1+1 standby circulation (TPD).
4 Standard Installation Requirements
1 Piping: Install rubber flexible joints at pump inlet/outlet, reserve straight pipe ≥5x diameter before & after pump to reduce turbulence;
2 Filtration: Fit Y-strainer at front end for cold/hot water to avoid seal abrasion by impurities;
3 Electrical: Independent circuit for VFD pumps, shield communication cable with CU controller;
4 Anti-Freeze: Drain pump cavity for long winter shutdown, heat tracing optional for cold regions;
5 Parallel Units: Adopt CU352 cabinet for multi-pump rotation to balance wear.
5 Routine Maintenance Guide
1 Quarterly Inspection: Check inlet/outlet pressure, running noise & seal leakage;
2 Semi-Annual Maintenance: Clean strainer sediment;
3 Annual Overhaul: Test motor insulation, refill bearing special grease;
4 VFD Pump: Calibrate differential setpoint every 6 months to reduce frequent startup loss.
