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Dupro MODTP Mechanically Operated Diaphragm Dosing Metering Pump - Sealless Glandless

Dupro MODTP Mechanically Operated Diaphragm Type Dosing Metering Pumps

The Dupro MODTP is a sealless, glandless mechanically operated diaphragm type dosing and metering pump designed for safe, leak-free transfer of toxic, hazardous, and corrosive chemicals. With capacity up to 200 litres per hour and discharge pressure up to 12 kg/cm², the MODTP delivers reliable chemical dosing in a compact, cost-effective package. Available in both metallic (SS-304, SS-316, Hastelloy, Titanium) and non-metallic (Polypropylene, PTFE, PVC, UHMWPE) construction for complete chemical compatibility.

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Manufactured by Dupro Engineering Private Limited, Ahmedabad, the MODTP series uses a flexible diaphragm as both the pumping element and the seal, eliminating all glands and mechanical seals. This zero-leakage design makes it inherently safe for handling slurries, shear-sensitive fluids, abrasive substances, toxic liquids, and hazardous materials. Available in MODTP 01 through MODTP 04 models with multiple head configurations including sanitary, remote, and jacketed heads. Tank pack systems with stirrer are also available for complete dosing solutions.

Product Datasheet

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Detailed technical specifications, performance curves & selection guide

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200
litres/hour
Capacity
+100°C
Temperature
12
kg/cm²
Pressure
Mechanically
Pump Type

Specifications

Pump Type
Mechanically Operated Diaphragm (Sealless/Glandless)
Series
MODTP (Models 01, 02, 03, 04)
Capacity Range
Up to 200 litres/hour
Discharge Pressure
Up to 12 kg/cm²
Temperature Range
Up to +100°C
Metallic Materials
SS-304, SS-316, Alloy-20, Hastelloy C & B, Titanium, Monel, Inconel
Non-Metallic Materials
Polypropylene, PTFE, Nylon, PVC, UHMWPE
Sealing
Sealless / Glandless (zero leakage)
Safety
Pressure Relief Valve (standard)

Key Features & Advantages

Sealless / Glandless DesignZero leakage — the diaphragm acts as both pumping element and seal, eliminating all mechanical seals and glands
Safe for Hazardous FluidsInherently safe for toxic, hazardous, corrosive, and environmentally sensitive chemicals
Handles Difficult FluidsSlurries, shear-sensitive fluids, abrasive substances, and viscous media
Compact FootprintSpace-saving design for installations with limited floor space
Cost-EffectiveLower acquisition and maintenance costs compared to plunger type pumps for suitable applications
Metallic & Non-Metallic OptionsFull range of exotic alloys and polymer constructions for complete chemical compatibility
Multiple Head ConfigurationsSanitary, remote, jacketed, and multi-head options available
Tank Pack SystemsComplete dosing packages with tank, stirrer, and pump available
Pressure Relief ValveStandard safety feature for system protection
User-Friendly OperationSimple design with minimal operator training required

Material Selection Guide

Metallic Construction

  • SS-304 — General chemical service
  • SS-316 — Chloride-bearing chemicals
  • Alloy-20 — Sulfuric acid service
  • Hastelloy C & B — Severe corrosion
  • Titanium — Seawater & chlorine
  • Monel / Inconel — High-temp corrosion

Non-Metallic Construction

  • Polypropylene — Acids & caustics
  • PTFE — Universal chemical resistance
  • Nylon — General purpose
  • PVC — Dilute acids & water treatment
  • UHMWPE — Abrasive slurries

Applications

Chemical Dosing & Metering
Water & Effluent Treatment
Toxic Chemical Handling
Pharmaceutical Manufacturing
Food & Dairy Processing
Fertilizer & Pesticide Plants
Pulp & Paper Processing
Textile Chemical Dosing
Sewage Treatment Plants
Sugar Industry
Personal Care & Detergent
Marine Applications

Why Choose Target Marketing for Dupro Diaphragm Dosing Pumps?

Authorized Dupro DealerOfficial channel partner with genuine product warranty and factory support
Expert Chemical Compatibility GuidanceTechnical team assists in selecting metallic or non-metallic construction based on your chemical environment
Complete Dosing SolutionsTank pack systems with stirrer and automation available
Complete Spares & ServiceGenuine Dupro diaphragms, valves, and wear components
End-to-End SupportFrom enquiry to installation, commissioning, and maintenance

Need a Quote for Mechanically Operated Diaphragm Type Dosing Metering Pumps?

Talk to our application engineers for hydraulic selection, MOC review and TCO comparison.

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Frequently Asked Questions

What is a mechanically operated diaphragm dosing pump?

A mechanically operated diaphragm dosing pump uses a flexible diaphragm driven by a mechanical linkage to displace fluid. The diaphragm acts as both the pumping element and the seal, creating a completely sealless and glandless design with zero leakage — ideal for toxic, hazardous, and corrosive chemical dosing.

Diaphragm dosing pumps offer a completely sealless/glandless design with zero leakage, making them safer for toxic and hazardous fluids. They are more compact, cost-effective, and require less maintenance. Plunger types are preferred for higher pressures and larger capacities.

Yes, Dupro MODTP diaphragm dosing pumps can handle slurries, abrasive substances, shear-sensitive fluids, toxic liquids, and hazardous materials due to their sealless diaphragm design.

Dupro MODTP pumps are available in Polypropylene, PTFE, Nylon, PVC, and UHMWPE non-metallic construction for maximum chemical resistance to acids, caustics, and aggressive solvents.
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