Dooch
Dooch Co., Ltd (South Korea, since 1996) — specializing in VFD-controlled booster pump systems and centrifugal pumps, self-developed variable frequency drive (VFD) dedicated to pumps. Full range: VFD booster systems (IOP/XQP/NSQP), multistage vertical XR(L), in-line DP, double-suction DSC, turbine VTD, submersible & fire-fighting pumps. Certified KS Q ISO 9001:2015, CE, WRAS, NEP. Genuine distribution in Vietnam by Thái Khương Pumps (through EPSSO PUMPS).
Booster Pump electronic control
Dooch develops its own VFDs & controllers for pumps — stable-pressure booster systems, energy saving, intelligent operation.
Specialized in booster systems
Booster pump systems maintain stable water pressure for buildings and factories — Dooch's core strength since 1996.
In-house VFD manufacturing
Dooch develops pump-dedicated VFDs & controllers — not general-purpose drives.
Color-screen control panel
Intuitive graphical interface, alternating pump operation, intelligent monitoring — easy to track & energy efficient.
KS ISO 9001 · CE · WRAS · NEP
Certified KS Q ISO 9001:2015 (KIC), CE (Drive/Pump/Controller), WRAS (potable water contact) and NEP — New Excellent Product of South Korea.
Wide product range
From VFD booster systems, multistage vertical XR(L), in-line DP, single-volute DSV to double-suction DSC (up to 20,000 m³/h), turbine VTD, submersible & fire-fighting pumps.
3 factories · representative in Vietnam
Hwaseong factory (South Korea) + Shanghai & Huzhou (China). EPSSO PUMPS representative in Vietnam & Southeast Asia; TKT distributes, installs, and provides warranty.
Select correctly Dooch pump systems
Depending on flow rate, head, water conditions and control requirements — choose the right booster system or multistage pump.
Stable pressure, energy saving
VFD booster systems IOP/XQP/NSQP — demand-based pressure control, up to 1,440 m³/h & 245 m, touchscreen control cabinet.
High head
Multistage vertical pump XRL (stainless steel) — up to 350 m for high-rise buildings, fire-fighting, and boiler water supply.
Versatile, cost-effective
Multistage pump XR(L) cast iron/stainless steel in-line — foundation for water supply, HVAC, industrial, cartridge seal.
Intelligent operation
Dooch VFD + controller: pump alternation, remote monitoring, power optimization.
Compact installation, in-line
In-line pump installed directly in the pipeline, saving pump room space.
Potable water / stainless steel
Stainless steel XRL model for corrosion resistance in potable water, domestic use, and fire-fighting — durable at high head.
Domestic water supply
Booster systems for apartments, hotels, hospitals — stable pressure at every floor, quiet & energy efficient.
Boiler & industrial
Boiler water supply, cooling, and industrial systems requiring high head & reliability — XRL multistage series.
6 equipment groups Dooch
Vertical & horizontal booster systems, single booster pumps, various centrifugal pumps, submersible wastewater pumps and fire-fighting pumps — covering all water supply, industrial & fire protection needs.
IOP · XQP · NSQP · NSQ · N747D
Booster system variable frequency drive (VFD) on multistage vertical pumps — one VFD per pump (multi-master), maintaining stable discharge pressure, energy saving. Premium version IOP with 10.1" screen + IoT monitoring.
- Flow rateup to 1,740 m³/h
- Headup to 330 m
- Number of pumpsup to 6
- ControlVFD · IoT
- One VFD per pump — stable pressure, reduces pressure vessels & control cabinets
- IOP version with remote monitoring via PC/Mobile (IoT)
NSQP/NSQ/SQ2 — 2DHF · 2DHM
Compact horizontal booster system on pump multistage DHF or single-stage DHM — one VFD per pump (NSQ/SQ2-Drive), for townhouses, villas, apartments, shops.
- Flow rateup to 58 m³/h
- Headup to 68 m
- Number of pumps2–3
- VFDNSQ / SQ2
- Compact installation, stable pressure, dry-run & freeze protection
- Single-phase option (SQ2) for residential use
NSQ/SQ2-DHF · DHM · DHJ · DHJA
A single pump with integrated VFD (or pressure switch) — single booster solution for households, greenhouses, agriculture. Optional self-priming (DHJ/DHJA).
- Flow rateup to 29 m³/h
- Headup to 68 m
- Power0,37–5,5 kW
- Type1 pump + VFD
- Soft-start, stable pressure, compact and easy to install
- Bản tự mồi venturi giảm >50% priming time
XR(L) · DP · DHF · DHM · DSV · DSC · VTD · DHJ
Full range of centrifugal pumps: multistage vertical XR(L), in-line DP (HVAC), single-volute DSV, double-suction DSC and vertical turbine VTD — water supply, industrial, fire-fighting.
- Flow rateup to 20,000 m³/h
- Headup to 350 m
- Powerup to 355 kW
- MaterialsGang / Inox
- Cartridge seal, laser welding technology (XR(L))
- Optional Dooch VFD installation (NQ/NSQ/XQ Drive)
Submersible wastewater pump DSWQ · DSWQA · DSF
Submersible pump for wastewater, septic tanks, drainage — semi-open impeller, double mechanical seal, energy efficient. Up to 5,700 m³/h, discharge port DN500.
- Flow rateup to 5,700 m³/h
- Headup to 85 m
- Powerup to 315 kW
- Discharge portup to DN500
- Semi-open anti-clog impeller, handles solids (DSF)
- Double mechanical seal — durable in wastewater environments
Electric fire-fighting pump · diesel DSVE · complete package
Fire-fighting pump vertical (electric), diesel engine DSVE (no emergency generator required) complete fire-fighting system — high head, reliable for building fire protection.
- TypeElectric / Diesel
- ConfigurationComplete set
- HeadCao
- StandardsPCCC
- DSVE diesel requires no emergency generator — reduces costs
- Automatic remote control, custom-fabricated for site requirements
Pump Dooch at Thái Khương
Filter by booster system group and multistage vertical pumps.
Complete IoT Booster System DOOCH IOP
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Single-Pump Variable Frequency Drive Booster System N747D Series
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NSQ-XR(L) Variable Frequency Pump System and NSQ-Drive Standalone Inverter Panel
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Variable Frequency Drive Booster Pump System Dooch NSQP Series
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Variable Frequency Drive Booster Pump System XQP Series
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NSQ-2DHF(T Twin-Pump Booster System
View detailsNSQ-2DHM Single-Stage Horizontal Booster System — Dooch
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NSQP-2DHF(T) Twin-Pump Booster System
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NSQP-2DHM Booster Pump System | High Flow Rate
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Multistage Horizontal Booster System SQ2-2DHF (Single Phase) — Dooch
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SQ2-2DHM Single-Stage Horizontal Booster System (single-phase) — Dooch
View detailsPressure-switch self-priming booster pump DHJA — Dooch
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NSQ-DHF(T) Horizontal Variable Frequency Drive Pump
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NSQ-DHM High-Flow VFD Booster Pump | Single-Phase Option
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Single-phase horizontal multistage variable-frequency booster pump SQ2-DHF — Dooch
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Self-priming variable-frequency booster pump SQ2-DHJ — Dooch
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Single-phase horizontal single-stage variable-frequency booster pump SQ2-DHM — Dooch
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Multistage Horizontal Centrifugal Pump DOOCH DHF(T)
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Dooch DHJ self-priming pump (self-priming)
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Single-stage Stainless Steel Horizontal Centrifugal Pump DOOCH DHM
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DOOCH DP Inline Circulation Pump with Variable Frequency Drive
View detailsDooch DSC Double-Suction Pump (double-suction split)
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Single-volute Horizontal Centrifugal Pump Dooch DSV/DSVG
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DOOCH VTD Deep-Well Vertical Turbine Pump
View detailsXQ-XR(L) Series Vertical Pump with Integrated Variable Frequency Drive
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XR(L) Series Vertical Multistage Centrifugal Pump (50Hz)
View detailsDooch Submersible Wastewater Pump (DSWQ / DSWQA / DSF)
View detailsDooch DSVE Diesel Engine Fire-Fighting Pump
View detailsDooch Electric Vertical Fire-Fighting Pump (XR(L) / DSV)
View detailsComplete Fire-Fighting Pump Package DOOCH FS
View detailsVFDs & controllers Dooch in-house manufacturing
Dooch develops its own pump-dedicated VFDs and controller/monitoring units — the core of intelligent booster pump systems.
XQ-Drive
High-efficiency pump-dedicated VFD, 3-phase 0.75–22 kW, integrated EMC filter (IEC 61800-3) + DC reactor, 3.5" LCD display.
NSQ-Drive
Single-phase VFD (0.40–2.2 kW) & 3-phase (0.75–22 kW), 5-digit FND display, RS-485 port, IP55.
SQ2-Drive
Compact single-phase VFD 0.75–1.5 kW (input 200–230V → output 3-phase), 5-digit FND — for residential booster systems.
TM Monitor
Booster system monitoring display, 7" TFT touchscreen, RS-485 × 2 ports, Run/Alarm contacts, USB port.
Controller OPC-1001/1000
Pump Controller — OPC-1001 with 3.5" color TFT display / OPC-1000 with LED indicators; MODBUS-RTU + CAN, 2 pressure sensors, low water level protection.
Controller N747D
PID variable-speed booster system control with 1 shared VFD up to 110 kW, connecting up to 6 pumps — reduces control cabinets & pressure vessels.
Dooch pump solutions for all applications
Building water supply & pressure boosting, fire protection, HVAC & cooling, drainage & wastewater treatment — diverse pump series for every application.
Building & high-rise water supply
Apartments, hotels, hospitals, and offices requiring stable pressure at every floor — VFD booster systems XQP/NSQP.
Fire fighting
Vertical fire-fighting pump (electric), diesel engine pump DSVE (no emergency generator required) and complete fire-fighting system — high head for factories, commercial centers, and logistics warehouses.
HVAC & district cooling
In-line pump DP and single-volute DSV for air conditioning, district heating/cooling, hot/cold water circulation — optional VFD XQ-DP/NSQ-DP for energy saving.
Drainage & wastewater treatment
Submersible wastewater pump DSWQ/DSWQA/DSF (semi-open impeller, double mechanical seal) for wastewater treatment plants, septic tanks, basement drainage; vertical turbine VTD for raw water supply & deep wells.
Production capacity Dooch
International certifications (KS ISO 9001, CE, WRAS, NEP), 3 factories in South Korea & China, present in key regional projects.
Experts electronic booster pump
Dooch Co., Ltd established in 1996 in South Korea, with manufacturing facilities in Hwaseong (South Korea) as well as Shanghai & Huzhou (China). The company positions itself as an energy-saving pump manufacturer — with the motto “Saving energy — Pump solutions for a better future.”
Dooch self-developed variable frequency drive (VFD) dedicated to pumps and controllers/monitoring systems, certified to KS Q ISO 9001:2015, CE, WRAS and NEP. The product range covers: VFD booster systems (IOP/XQP/NSQP/N747D), vertical multistage centrifugal pumps XR(L), in-line DP, single-volute DSV, double-suction DSC, turbine VTD, submersible wastewater pumps and fire-fighting pumps — serving water supply, fire protection, HVAC and industrial applications.
TKT supplies Dooch pumps & booster systems genuine, with technical consultation for selecting booster/multistage systems, materials & VFD configuration based on project flow rate/head, control panel setup, commissioning and manufacturer warranty.
Pump FAQ Dooch
What is Dooch?
What pump lines and systems does Dooch offer?
How does the Dooch VFD booster system work?
How do the XR and XRL vertical multistage centrifugal pumps differ?
Which certifications does Dooch hold?
What support does Thái Khương Pumps provide for Dooch equipment?
Request a quotation pump Dooch?
Thái Khương Pumps engineers provide consultation for selecting booster/specialized pump systems, materials and VFD configuration based on project flow rate/head — including control panel setup and commissioning.
Application solutions
Need repair, maintenance or spare parts for your pump?
TKS technical service & after-sales team serves all pump brands — 24/7 repair, laser alignment, rotating equipment overhaul, and genuine spare parts for 28+ EU/G7 pump brands.