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Macro photography of black rubber sealing rings for handpumps, arranged in a precise technical pattern on a white surface
Category A1 • Sealing Systems
Technical Product Sheet

HANDPUMP RUBBER SEALING RINGS

Field-proven seals for India's water infrastructure backbone.

Our Handpump Rubber Sealing Rings are manufactured from premium-grade NBR and EPDM compounds and are engineered to endure the demanding conditions of rural and municipal water distribution networks. With over 30 years of production heritage, these components are field-proven across millions of India Mark II and Mark III handpumps deployed across the subcontinent. Each ring undergoes rigorous shore hardness verification, dimensional inspection, and chemical resistance testing to guarantee long lifecycle without premature deformation or seal failure.

Performance Advantages

KEY FEATURES

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Water-Tight Seal Integrity

Precision lip geometry ensures zero-leakage operation under continuous suction and discharge cycles.

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Ozone & Weather Resistance

EPDM compound variants offer superior UV, ozone, and thermal aging resistance for outdoor deployments.

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Long Service Life

Anti-fatigue compound mix engineered for 10,000+ cycles before performance degradation.

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Custom Sizing Available

Manufactured to exact bore diameters per your handpump model — India Mark II, III, and OEM specifications.

Technical Data

SPECIFICATIONS

Standard Compliance
IS 9974 / BIS Certified
Shore Hardness (IRHD)
55 ± 5
Tensile Strength
≥ 12 MPa
Elongation at Break
≥ 300%
Compression Set (70°C, 22h)
≤ 25%
Temperature Range
-20°C to +70°C
Available Material
NBR, EPDM, Natural Rubber
MOQ
500 pcs
Use Cases

APPLICATIONS

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    India Mark II & III Handpumps
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    Municipal Water Supply Networks
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    Rural Irrigation Pumping Systems
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    Borewell Water Extraction Units
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    Community Drinking Water Projects
Compound Options

MATERIALS

NBR (Nitrile Rubber)EPDMNatural Rubber (NR)SBR Blend
Compliance

CERTIFICATIONS

verifiedBIS IS 9974
verifiedISO 9001:2015
verifiedUNICEF Approved Supplier
Get Started

NEED CUSTOM SPECIFICATIONS?

Our engineering team can adapt any product to your exact requirements — bore size, hardness, compound, and surface finish. Request a technical consultation today.