Neoprene Ball — Material Specifications, Engineering Data & OEM Supply
Built to international industrial standards, Neoprene Ball from HEMSUN delivers low friction and universal chemical inertness for precision valve balls. Fabricated in Dahegam, Gandhinagar, Gujarat, India from high-density engineering fluoropolymer with full material certification.
Where Neoprene 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 refrigerant, moderate oil and weathering duty where a general-purpose elastomer with balanced properties is sufficient.
Supplied to drawing across the published range — Diameter
5mm to 310mm — industry-leading Neoprene Ball size range; Material: Neoprene (CR — Chloroprene Rubber) — with dimensional and material reports on request.
Key properties
Diameter
5mm to 310mm — industry-leading Neoprene Ball size range
Material
Neoprene (CR — Chloroprene Rubber)
Grade
ISO 3290 Grade G10 precision
Oil Resistance
excellent oil and grease resistance
Weatherability
outstanding ozone, UV and weather resistance
Good flame resistance
self-extinguishing
Temperature range
-40°C to +120°C
Flexible and resilient
good compression set recovery
Abrasion Resistance
good performance
Hardness
Shore A 40 to 80 (custom available)
Typical Use
marine, outdoor, oil and refrigeration ball valves
IEC registered
export-ready quality
Specifications
| Property | Value |
|---|---|
| Component Type & Grade | Neoprene Ball (Specification Code HES-728) |
| 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
Fabrication of Neoprene Ball relies on high-tonnage powder compaction and free sintering of engineering fluoropolymer. Preforms are pressed under strict pressure dwell parameters, then heat-treated above 342°C in forced-convection ovens to bond resin granules into a void-free, chemically resilient matrix.
Material selection notes
Physical performance of Neoprene Ball is governed by high-grade engineering fluoropolymer polymer formulation. Outstanding chemical resistance, high elongation (up to 400%), and low surface energy make it ideal for aggressive chemical pumps, valve seating, and pharmaceutical sanitary process lines.
How to specify your order
Procurement checklist for Neoprene Ball: Specify outer dimensions (OD/ID/Length), chemical exposure media, temperature limits, and target delivery schedule. We assist in selecting the optimal virgin or filled material grade and provide itemized pricing with lead times.
Quality checks and inspection
Our quality department inspects Neoprene Ball using precision coordinate measuring machines, digital surface roughness testers, and resin specific gravity balances, ensuring 100% adherence to customer drawing nominals.
Ordering and export documentation
Domestic Neoprene 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. Recurring supply schedules supported with fixed drawing revision and lot numbering for plant stores Contact info@hemsun.com or sales@hemsun.com with your balls specification.
Export packing and lead time
Global shipments of Neoprene Ball are handled by our dedicated export logistics team. Orders are packed in heavy-duty seaworthy packaging with VCI anti-corrosion barrier wrapping and dispatched with complete IEC customs documentation.
Storage and handling
Guidelines for Neoprene Ball: Handle with clean gloves during precision assembly. Ensure mating metallic seats and shafts exhibit surface finishes of Ra ≤ 0.4 µm for maximum component operating life.
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 Neoprene Ball you manufacture?
We manufacture Neoprene (CR Rubber) Balls up to 310mm diameter.
Are Neoprene Balls suitable for outdoor and marine applications?
Yes. Neoprene Balls have excellent ozone, UV, and weather resistance making them ideal for outdoor valves, marine pump check valves, and equipment exposed to sunlight, saltwater, and weathering conditions.
What hardness range is available for Neoprene Balls?
Neoprene Balls are available in Shore A hardness from 40 to 80. Specify your required hardness at order placement. Softer compounds (40–50 Shore A) give better sealing at low pressures; harder compounds (60–80 Shore A) give better mechanical wear resistance and dimensional stability.
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