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    Repair & Overhaul

    Chemical Dosing & Metering Pump Service

    Precision chemical dosing and metering pump repair in Gujarat — diaphragm, plunger, and progressive cavity pumps calibrated for exact volumetric delivery.

    Fast response
    Across Gujarat
    Pressure tested
    Before return
    Ahmedabad based
    GIDC estates covered
    5 industries
    Served across Gujarat

    Precision chemical dosing and metering pump repair in Gujarat — diaphragm, plunger, and progressive cavity pumps calibrated for exact volumetric delivery.

    Overview

    About this service

    Chemical dosing and metering pumps perform critical precision fluid delivery in water treatment coagulation, boiler chemical injection, pH neutralization, biocide dosing, and pharmaceutical chemical synthesis. When a dosing pump loses volumetric accuracy or suffers diaphragm rupture, process quality drifts and hazardous chemicals escape. Teflow Pumps provides precision chemical dosing pump repair, diaphragm replacement, valve reconditioning, and volumetric calibration across Gujarat.

    Our specialized metering pump service covers mechanical diaphragm dosing pumps, hydraulically actuated double-diaphragm pumps, high-pressure plunger metering pumps, and progressive cavity positive displacement dosing units. We handle all major liquid end materials including PTFE, PVDF, 316L SS, Hastelloy C-276, and PVC.

    During diagnostic overhaul, our technicians inspect the heart of the metering mechanism: drive gearboxes, eccentric worm drives, hydraulic relief valves, and liquid end check valves. Check valve assemblies (ceramic and ruby balls with PTFE/PVDF seats) undergo microscopic inspection and precision lapping to eliminate backflow leakage and ensure repeatable volumetric accuracy within ±1%.

    Diaphragm renewal is executed using virgin composite PTFE-faced elastomeric diaphragms with built-in rupture detection sensors. For hydraulic diaphragm pumps, we flush hydraulic oil chambers, replace internal pressure relief valves, and bleed air to eliminate stroke compressibility.

    Every overhauled chemical dosing pump undergoes multi-point volumetric flow calibration across 10%, 25%, 50%, 75%, and 100% stroke settings against certified calibration columns under full rated discharge pressure. We service water treatment plants, chemical manufacturing complexes, and boiler houses across Ahmedabad, Vadodara, Ankleshwar, Surat, and Dahej. Contact Teflow Pumps on +91 98251 62709 or message our dosing pump desk on WhatsApp to arrange precision calibration and repair.

    Precision chemical dosing and metering pumps perform critical micro-fluid delivery in water treatment coagulation, boiler chemical injection, pH neutralization, biocide dosing, and pharmaceutical chemical synthesis. When a dosing pump loses volumetric accuracy or suffers diaphragm rupture, process quality drifts and hazardous chemicals escape. Teflow Pumps provides precision chemical dosing pump repair, diaphragm replacement, valve reconditioning, and volumetric calibration across Gujarat.

    Our specialized metering pump service covers mechanical diaphragm dosing pumps, hydraulically actuated double-diaphragm pumps, high-pressure plunger metering pumps, and progressive cavity positive displacement dosing units. We handle all major liquid end materials including PTFE, PVDF, 316L SS, Hastelloy C-276, and PVC.

    During diagnostic overhaul, our technicians inspect drive gearboxes, eccentric worm drives, hydraulic relief valves, and liquid end check valves. Check valve assemblies (ceramic and ruby balls with PTFE/PVDF seats) undergo microscopic inspection and precision lapping to eliminate backflow leakage and ensure repeatable volumetric accuracy within ±1%.

    Diaphragm renewal is executed using virgin composite PTFE-faced elastomeric diaphragms with built-in rupture detection sensors. For hydraulic diaphragm pumps, we flush hydraulic oil chambers, replace internal pressure relief valves, and bleed air to eliminate stroke compressibility.

    Every overhauled chemical dosing pump undergoes multi-point volumetric flow calibration across 10%, 25%, 50%, 75%, and 100% stroke settings against certified calibration columns under full rated discharge pressure. Contact Teflow Pumps on +91 98251 62709 to arrange dosing pump calibration and repair today. Dosing pump servicing includes multi-point volumetric calibration to ±1% accuracy across 10% to 100% stroke settings, virgin PTFE composite diaphragm replacement, check valve ceramic ball and seat lapping, and hydraulic relief valve testing. Chemical dosing pumps undergo multi-point volumetric calibration across 10% to 100% stroke settings under full rated discharge pressure. We ensure strict ±1% metering accuracy on water treatment and chemical injection lines. Dosing pump servicing includes multi-point volumetric calibration to ±1% accuracy across 10% to 100% stroke settings under full rated discharge pressure. We ensure strict volumetric linearity on water treatment and chemical injection lines. Certified multi-point volumetric calibration ensures strict metering repeatability, preventing chemical overdosing and ensuring full environmental compliance.

    Interactive Pump Failure Root-Cause Diagnostic Navigator

    ISO 10816 / API 682 Step-by-Step Triage Flow
    Click Symptoms to Diagnose
    Diagnostic Resolution PathwayISO 5199 / Hydraulic Institute HI 9.6.1 Margin Standard
    1. Identified Root Cause

    Classic NPSHa starvation or thermodynamic vapor flashing at first-stage impeller eye (NPSHa < NPSHr + 1.5m).

    2. Field Verification Step

    Check suction strainer differential pressure (ΔP > 0.35 bar indicates clogging); audit deaerator/tank static height and fluid vapor pressure.

    3. Corrective Workshop Fix

    Clean suction strainer; elevate suction feed vessel or increase suction pipe diameter to lower flow velocity below 1.2 m/s; trim impeller or fit high-Nss inducer.

    How it works

    Our process

    A disciplined sequence from diagnosis to documented, pressure-tested delivery.

    Step 01

    Neutralization & Teardown

    Liquid end is chemically neutralized, dismantled, and check valves inspected under microscope

    Step 02

    Gearbox & Drive Overhaul

    Eccentric drive gears, bearings, and stroke adjustment mechanisms are rebuilt

    Step 03

    Diaphragm & Valve Assembly

    New virgin PTFE diaphragms, ceramic balls, and chemical seats are installed

    Step 04

    Calibration & Hydro Test

    Flow rate is calibrated on graduated columns at multiple stroke settings under pressure

    What's included

    Scope & outcomes

    Everything covered in the scope, and the results you can expect.

    What's included

    • Complete liquid end teardown, chemical neutralization, and ultrasonic cleaning
    • Multi-point volumetric calibration across 10% to 100% stroke settings to ±1% accuracy
    • Replacement with virgin multi-layer PTFE composite dosing diaphragms
    • Check valve reconditioning with high-precision ceramic/ruby balls and PTFE seats
    • Internal hydraulic relief valve testing, calibration, and oil replenishment
    • Eccentric drive gearbox rebuilding, bearing replacement, and stroke mechanism repair
    • Pressure containment testing up to rated discharge pressure (up to 100 bar)
    • Certified calibration certificates detailing volumetric flow linearity

    Benefits

    • Restore strict ±1% volumetric dosing accuracy to eliminate expensive chemical over-dosing
    • Prevent hazardous chemical leaks with virgin PTFE diaphragms and rupture sensors
    • Eliminate flow pulsation irregularities caused by sticking or worn check valves
    • Extend dosing pump operational lifespan in aggressive acid and biocide injection duties
    • Receive certified calibration documentation for environmental and ISO audit compliance
    Questions

    Frequently asked questions

    Loss of accuracy is primarily caused by worn or fouled suction/discharge check valve balls and seats allowing backflow, air entrapped in hydraulic chambers, or worn eccentric stroke mechanisms causing stroke length drift during operation. Multi-point volumetric calibration ensures precise chemical metering and zero process drift.

    Need this service for your plant?

    Get a fixed quote after inspection — call, WhatsApp, or send a request and we'll confirm the response time.