High Head at Low Flow
A single-stage pitot tube pump gives high head for small flows—an option for industrial transfer and membrane feed.
Water Treatment & Industrial RO
Pumps for Water Treatment & RO
The flow and pressure your water process needs. EHIK supplies low-flow, high-head pitot tube pumps and integrated packages, each matched to the water quality, inlet conditions and the transfer or RO feed duty.
Continuous Liquid Delivery
The rotating design gives a continuous flow for transfer and process feed. EHIK matches the pump curve and drive to the treatment system's operating point and control range.
One Coordinated Pump Scope
EHIK puts the pump, materials, seal and drive into one proposal. A skid can also include pipework, valves, instruments and controls.
Wastewater Retrofit / Qingzhou Boao
Wastewater Pumping
at Qingzhou.
EHIK replaced multistage centrifugal pumps for wastewater duty at Qingzhou Boao in Shandong, China.
EHIK Pump Sets in the Plant Pipework
At Qingzhou Boao, EHIK pumps replaced multistage centrifugal pumps in wastewater service. The photos show the EHIK pump and drive, the equipment next to it and the connections in the existing plant.
A new water-transfer installation is planned the same way: select for the real liquid and duty, then plan the footprint, connection positions and access. For a retrofit, EHIK also reviews the equipment and pipework that will stay. Custom flanges can match your existing piping.
This project is wastewater service. The RO section below is a different membrane-feed duty, with its own water-quality and pressure needs.
Contact EHIKDefine the Duty
Find Your Water-Pumping Task.
Industrial transfer, wastewater and membrane feed have different liquids and operating needs. EHIK selects the pump for the job the water does in your process.
Industrial Water Transfer
Send water to a process or raise pressure for the next step. EHIK matches the pump, drive and connections to the source, the pressure at the destination and the daily operating pattern.
We also check temperature, dissolved chemicals and suspended matter.
Wastewater Pumping
Wastewater is different in every process. Particle size and amount, corrosive substances, gas and temperature decide the pump materials, seal and wear-resistant options.
The Qingzhou installation above is a real wastewater project.
High-Pressure RO Feed
Feed the membrane stage with the flow and pressure the RO-system designer specifies. EHIK checks the pump against that duty, the pretreated water and the expected operating range.
The pump feed flow is not the same as the purified-water output. We need both.
Existing-Pump Replacement
EHIK helps plan the replacement of an existing pump, based on the operating problem and the water duty. We check the proposal against the process, inlet pressure and existing connections. Custom flanges can match your existing piping.
Contact EHIKThe RO Pumping Task
Pressure for the
Membrane Feed.
Reverse osmosis uses pressure to push water through a membrane. The pump gives the pressure; the membrane separates the water.
01 / Feed Preparation
Pretreated Water
Water quality and inlet supply
02 / Pumping Duty
High-Pressure Pump
Required feed flow and pressure
03 / Separation
RO Membrane Stage
PermeateProduct-water stream
ConcentrateRetained-salt stream
Select on Membrane-Feed Flow
The RO designer's feed flow and pressure define this duty. EHIK matches the pump to them, including suction conditions and piping losses.
Define Each Pump's Role
With energy recovery, the main high-pressure pump and any booster pump do different jobs. Each pump is selected for its own flow and operating point.
Simplified RO process. The final flow arrangement and pump duties follow your treatment-system design.
Selection That Fits the Process
Match the Pump to Your Water.
EHIK's proposal covers the pump curve, materials and inlet needs for your real operating range.
Flow & Pressure
We select for the normal duty and the expected minimum-to-maximum range. For RO, we also consider the membrane-feed need, the control range and changes in demand, water temperature and salinity.
Liquid & Materials
The water analysis decides the materials and seal. We review temperature, pH, chlorides, particles and chemicals—and cleaning liquids, if they pass through the pump.
Suction & Operation
For the NPSH check, we review the inlet supply, minimum tank level or feed pressure and suction pipework. We also need the running hours, start/stop sequence and any duty/standby pumps.
Choose Your Supply Scope
A Pump Set or an Integrated Package
Agree what EHIK supplies and how it connects to your treatment plant.
Pump & Drive
Pump, motor, coupling, guard and base for your liquid duty. EHIK provides selection, performance curves, outline drawings and technical support.
Explore Pitot Tube PumpsIntegrated Pump Skid
Pump and drive with the pipework, valves, instruments and controls you need. Process connections and signals are agreed with the treatment-system designer.
Explore Pump SkidsWater & RO FAQs
From Water Analysis
to Pump Selection
Start with the information you have. EHIK helps turn it into a pump selection and a clear proposal. We reply within 1 business day.
Contact EHIKIs RO product-water output the same as pump flow?
No. The pump is selected on the membrane-feed flow, which is different from the permeate output. EHIK can help define the pump duty in your RO system.
Does EHIK supply the complete membrane treatment plant?
No. EHIK supplies the pump or an integrated pump package. Pretreatment, membranes, energy recovery and other treatment equipment come from your system integrator.
Which material should I choose for saline water?
Salt and chloride levels, temperature and water chemistry decide the material. EHIK matches the materials and seal to the service—choosing a stainless-steel grade is not enough on its own.
Can EHIK help replace an existing pump?
Yes. Contact EHIK to discuss a replacement. We help find the cause of the problem, match the pump to the water duty and check the fit with the existing connections. Custom flanges can match your existing piping.
Do I need a complete specification before contacting EHIK?
No. Contact EHIK directly. If you know the liquid properties, flow or pressure, please include them—you do not need all the details to start. EHIK provides selection, curves, outline drawings and technical support.
Start Your Water Project
Let's Discuss
Your Water Project.
Contact EHIK for industrial water transfer, wastewater or RO-feed pumping. We can help select the pump and materials and define a pump set or integrated package.
Contact EHIKReplacing an existing pump? Email info@ehikpumps.com or message us on WhatsApp.
Pump Selection & Curves
A proposed pump configuration matched to your flow, pressure and operating range.
Outline Drawings & Supply Scope
The equipment layout and a clear scope for the pump set or integrated skid.
Technical Support & Quotation
Help with liquid, materials and connection questions, then a quotation for the agreed scope.