Parts & Consumables · Technical Documentation

Pump Specifications & Manuals

High-pressure pumps for RO duty and electromagnetic diaphragm metering pumps for chemical dosing — selection data, nameplate reference and downloadable documentation.

01 High-Pressure Pumps

Vertical multistage centrifugal pumps are the standard feed and boost pump on our RO trains. They are supplied as part of a system or as drop-in replacements for an existing skid — the motor, seal and material grade are matched to your feed-water analysis, not to a catalogue default.

Supply range

ParameterWhat we supply (typical)Notes
TypeVertical multistage centrifugal, close-coupledHorizontal end-suction and high-pressure plunger types for special duty
Flow per pump1 – 60 m³/hLarger duties covered by parallel trains
Head per pumpup to 250 m (≈25 bar)Seawater RO uses a dedicated high-pressure stage up to 60 bar
Motor0.37 – 45 kW, IE3, 3-phase 380–440 V, 50/60 HzSingle-phase and other voltages on request
Wetted materialsAISI 304 standard · AISI 316L for high-chloride or DI dutyAll 316L wetted path for pharmaceutical and UPW lines
Mechanical sealCartridge type, SiC/SiC or EPDMSelection follows the chemical compatibility of the feed water
ConnectionsThreaded up to DN50 · flanged above DN50Sanitary clamp ferrules for GMP systems
Liquid temperature0 – 90 °C standardUp to 120 °C with high-temperature kit
Protection / controlIP55 motor · VFD or soft starter on requestPressure transducer and dry-run protection available
Reference data only. The pump curve, motor rating and seal grade are fixed on the order datasheet for your unit. Always select spares from the nameplate and the datasheet shipped with the pump — not from the ranges above.

To quote a pump we need

  • Feed flow (m³/h) and required discharge pressure (bar)
  • Feed-water analysis — TDS, chloride, temperature, SDI
  • Supply voltage / frequency and phase
  • Existing pump model or nameplate photo for drop-in replacement

What ships with the pump

  • Performance curve and dimensional drawing
  • O&M manual in English
  • Material and test certificates on request
  • Spare-parts list with seal and O-ring part numbers

02 Dosing Pumps — E Series

Electromagnetic diaphragm metering pumps for antiscalant, biocide, pH correction and CIP chemical feed. Constant-flow and pulse-proportional models share the same head, so spare diaphragms and valves fit across the range.

Technical data

ParameterValue
TypeElectromagnetic diaphragm metering pump, single head
Flow range0.5 – 11 L/h (model dependent)
Turndown ratio1 : 100
Max. discharge pressure1.5 bar (0.15 MPa) as standard; higher-pressure variants on request
Max. stroke rate180 strokes/min
Power supply220–240 V / 50 Hz (110 V / 60 Hz on request)
Power consumption24 W typical at rated flow
Wetted materialsPump head PVC or PVDF · diaphragm PTFE-faced · valves ceramic / glass
ConnectionsHose barb for 4×6 mm or 6×8 mm tubing; G1/2 threaded on request
ControlKeypad with 4-digit display · external pulse input standard on pulse models · 4–20 mA optional
Enclosure protectionIP65 (indoor, splash-proof)
Ambient temperature5 – 40 °C
Chemical temperature0 – 40 °C (PVC head) · 0 – 60 °C (PVDF head)
Viscosityup to 200 mPa·s (higher with suction-side assistance)

Nameplate reference

FieldReading on a typical unit
Type codeE0211AA1
Flow11 L/h
Pressure1.5 bar
Power220 V / 50 Hz · 24 W
Serial numberStamped per unit — quote it in every spare-parts enquiry
Calibrate from the nameplate, not from the table. Flow and pressure depend on the head and valve combination ordered. Use the nameplate values and the datasheet issued with your order.

03 Downloads

The dosing-pump manual is available directly below. High-pressure pump documentation is issued with each order — send us the model or nameplate photo and we will forward the matching datasheet and O&M manual.

PDF
E Series Dosing Pump — Installation, Operation & Maintenance Manual English · 7 pages · Rev 1.0 · 2026-10 · includes safety, installation, calibration, maintenance and troubleshooting
Download PDF
PDF
High-Pressure Pump — Datasheet & O&M Manual Issued per order (model, curve and seal grade specific). Request a copy with your pump model or nameplate photo.
Request manual

Need a pump matched to your system?

Send the feed flow, discharge pressure and a water analysis — we reply with a selection, a spare-parts list and a price within 24 hours. Spare diaphragms, valve kits and seals ship from stock.

Request a quote
Rong Water · Shenzhen Qiukanghong Technology Co., Ltd. (est. 2012) · Pumps supplied by Rong Water from source factories. Specifications subject to change without notice; the order datasheet governs.
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