EPDM Ball — Material Specifications, Engineering Data & OEM Supply
Custom-engineered by HEMSUN ENGG. INDUSTRIES in Dahegam, Gujarat, EPDM Ball provides exceptional chemical and thermal resilience for precision valve balls. Produced from certified engineering fluoropolymer with strict density control and diamond-tooled CNC finish machining for global industrial processors.
Where EPDM Ball is used
Sealing and flow-control element in ball valves and pump check seats, where sphericity and surface finish decide shutoff tightness and operating torque.
Selected for steam, hot water, brake fluid and outdoor weathering duty — and specifically not for petroleum oils or fuels, which swell EPDM.
Supplied to drawing across the published range — Diameter
5mm to 310mm — industry-leading EPDM Ball size range; Material: EPDM (Ethylene Propylene Diene Monomer) — with dimensional and material reports on request.
Key properties
Diameter
5mm to 310mm — industry-leading EPDM Ball size range
Material
EPDM (Ethylene Propylene Diene Monomer)
Grade
ISO 3290 Grade G10 precision
Outstanding water and steam resistance
up to +150°C
Excellent ozone and UV resistance
outdoor service suitable
Chemical Resistance
acids, alkalis and polar solvents
Temperature range
-50°C to +150°C
Food grade EPDM available
FDA-compliant compound
Flexibility
excellent compression set recovery
Market Position
most widely used rubber ball in water supply systems
Not suitable for petroleum oils
use NBR or Viton Balls for oil service
IEC registered
export-ready quality
Specifications
| Property | Value |
|---|---|
| Component Type & Grade | EPDM Ball (Specification Code HES-494) |
| Base Raw Material | engineering fluoropolymer (Virgin FDA 21 CFR 177.1550 / Custom Filled) |
| Continuous Service Temp. | -200°C to +260°C (-328°F to +500°F) |
| Tensile Strength at Break | 20 to 35 MPa (Virgin) / 14 to 25 MPa (Filled) |
| Elongation at Break | 250% to 450% (ASTM D4894) |
| Specific Gravity / Density | 2.14 to 2.18 g/cm³ (ASTM D792) |
| Dielectric Strength | 50 to 80 kV/mm (0.1 mm film) |
| Surface Roughness Finish | Diamond Polished Ra ≤ 0.20 µm to Ra ≤ 0.40 µm |
| Dimensional Tolerance | ISO Grade 1 to Grade 3 / Drawing Nominals (±0.02 mm) |
| Manufacturing & Origin | Moulded, Sintered & CNC Machined in Dahegam, Gandhinagar, Gujarat, India |
Manufacturing process
The manufacturing process for EPDM Ball utilizes precision cold preforming of engineering fluoropolymer followed by oven sintering. Automated hydraulic press cycles ensure consistent green compact density, which prevents localized voids and ensures uniform thermal expansion behavior during finish machining passes.
Material selection notes
Engineered from high-purity engineering fluoropolymer, this component resists virtually all industrial acids, alkalis, and aggressive organic solvents. The non-stick, self-lubricating surface minimizes drag and prevents material buildup in fluid handling systems. Compressive deformation under load is optimized through tailored filler grades based on service pressure.
How to specify your order
To configure EPDM Ball for your application, submit component dimensions, operating PV factors, and delivery port requirements. Our engineering team prepares complete technical evaluations and formal quotations within 24 hours.
Quality checks and inspection
Testing procedures for EPDM Ball include optical comparator profile inspection, hydrostatic pressure holding tests on seal components, and material hardness checks (Shore D) to verify full sintering cure.
Ordering and export documentation
Domestic EPDM Ball orders ship with GST invoice and e-way bill where applicable. Export orders include commercial invoice, packing list, and certificate of origin from our IEC-registered works. Air and sea freight packing with desiccant and shock protection for international buyers Contact info@hemsun.com or sales@hemsun.com with your balls specification.
Export packing and lead time
Export logistics for EPDM Ball cover global delivery via air freight or ocean container through Mundra and Nhava Sheva ports. Products are packed with protective foam wrapping and moisture-barrier film inside export-grade wooden crates, accompanied by certified commercial invoices and Certificates of Origin.
Storage and handling
Assembly recommendations for EPDM Ball: Use non-metallic insertion tools to press components into tight bores. Store stock in climate-controlled shelving away from direct heat sources.
Compliance & Standards
HEMSUN is a DGFT IEC registered exporter (Government of India). Diameter and sphericity are verified on calibrated gauges and the achieved grade is recorded on the inspection report; sintered density is checked per ASTM D792. A mill test certificate ships with the order. Export paperwork — commercial invoice, packing list and certificate of origin — accompanies international despatch.
Frequently Asked Questions
What is the largest EPDM Ball you manufacture?
We manufacture EPDM Balls up to 310mm diameter. Large EPDM Balls (150mm to 310mm) serve large-bore water main check valves and large-bore building services pump check valves.
Can EPDM Balls be used in hot water and steam service?
Yes. EPDM Balls are specifically rated for hot water up to +150°C and steam service. This makes them the standard rubber ball for hot water system check valves, steam trap check valves, and HVAC heating system pump check valves.
Are EPDM Balls suitable for food and dairy applications?
Yes. We supply EPDM Balls in FDA-compliant food-grade EPDM compound — non-toxic and safe for direct food and dairy contact. CIP-compatible and widely used in dairy pump check valves and food processing pump check valves.
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