Dosing Pump (E-Dose)

E-Dose Chemical Dosing Pump (Model IMP64)

New to dosing pumps? Check out our detailed guide: How to Choose the Right Chemical Dosing Pump for Water Treatment →

Quick Answer: The E-Dose is a solenoid-driven, PTFE-diaphragm chemical dosing pump used to inject precise doses of antiscalant, hypochlorite, acids, alkalis, chlorine, and polyelectrolyte into RO plants, ETP/STP systems, and UF plants. It delivers 6 LPH at 4 kg/cm², runs at up to 400 SPM, and is priced at Rs 5,079 (excl. tax) / Rs 5,993 (incl. tax), backed by a 1-year warranty.

Manual chemical dosing is inconsistent and unsafe with aggressive chemicals. The E-Dose automates this with a reciprocating PTFE diaphragm, giving you the same accurate dose every cycle — protecting your RO membrane, keeping chemical costs down, and helping ETP/STP setups meet discharge standards. Whether you're running a small RO plant, managing an ETP/STP for compliance, or dosing antiscalant, hypochlorite, or corrosion inhibitors as part of a larger treatment process, the E-Dose is built to run continuously with minimal supervision and minimal maintenance.

Why Choose the E-Dose Chemical Dosing Pump?

• Built for accuracy, not guesswork. A double ball NRV and excellent proportional control mean the dose you set is the dose you get — cycle after cycle — so your antiscalant, acid, or chlorine dosing stays consistent even as flow conditions vary.
• Protects expensive downstream equipment. Correctly dosed antiscalant is far cheaper than a scaled, prematurely failed RO membrane. Precise dosing reduces the risk of scaling, corrosion, and membrane fouling.
• Reduces chemical waste and cost. Over-dosing wastes chemical and money; under-dosing risks equipment damage or compliance failure. The E-Dose's adjustable stroke rate lets you dial in exactly what your system needs — nothing more.
• Runs continuously, economically. At just 30W, it's inexpensive to run 24/7, which matters for plants that dose chemicals around the clock.
• Built to handle harsh chemicals. PTFE diaphragm, PPO head, and VITON ball seals are chosen specifically for long-term exposure to acids, alkalis, and chlorine-based chemicals — not just mild solutions.
• Low-maintenance by design. The built-in Air Release Valve clears air locks automatically, and the double ball NRV extends pump life, so you spend less time troubleshooting and more time running your plant.
• Backed by real support and warranty. A 1-year warranty, 10-day replacement window, and Pearl Water's multi-city presence (Delhi NCR, Bengaluru, Lucknow) mean help is available if something needs attention.
• Value for the build quality. PTFE diaphragm and VITON seals are specifications you'd typically expect at a higher price point — the E-Dose brings them in at an accessible ?5,079.

How It Works

The E-Dose draws chemical from a storage tank through its suction tubing. An internal solenoid, controlled by an electronic circuit, drives the PTFE diaphragm back and forth — each stroke pulls in a fixed volume of chemical and pushes it out through the discharge line. The double ball NRV stops backflow between strokes, and the built-in ARV automatically clears any trapped air so dosing isn't interrupted. You control the dosing rate simply by adjusting the stroke-frequency knob, from 0 up to 400 strokes per minute, to match whatever rate your system requires.

Complete Your Water Treatment Setup

Pair the E-Dose pump with Antiscalant chemicals for RO membrane protection, or browse our full Pump range for pressure boosting and raw water pumps. Setting up a full system? Explore our Industrial RO Plants, Industrial Membrane Housings, RO Membranes, and Industrial RO Spares for maintenance.

Want a deeper dive into how dosing pumps work, buying guide, and installation tips? Read our full guide: How to Choose the Right Chemical Dosing Pump for Water Treatment → (update link once blog is live)