Neoprene Ball | CR Rubber Ball | 5mm to 310mm | Oil, Ozone and Weather Resistant
HEMSUN ENGG. INDUSTRIES manufactures Neoprene Balls — CR (Chloroprene Rubber) Balls — from 5mm to 310mm diameter. Neoprene Balls offer excellent resistance to oils, ozone, UV radiation, and weathering, combined with good mechanical flexibility and flame resistance — making them the standard choice for marine pump check valves, outdoor fluid handling valves, refrigeration system check valves, and oil-service pump check valves. ISO 3290 Grade G10. Exported globally.
Applications
Marine and offshore
Neoprene Balls in bilge pump check valves and marine through-hull check valves
Refrigeration and HVAC
Neoprene Balls in refrigerant check valves and HVAC pump check valves
Oil and petroleum service
Neoprene Balls in oil pump check valves and fuel transfer pump check valves
Outdoor infrastructure
large Neoprene Balls in outdoor water infrastructure and irrigation check valves
General industrial
Neoprene Balls in general pump check valves requiring oil and ozone resistance
Features
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
Technical Specifications
| Property | Value |
|---|---|
| Material | Neoprene (CR — Chloroprene Rubber) |
| Diameter Range | 5mm – 310mm |
| Grade | ISO 3290 Grade G10 |
| Temperature Range | -40°C to +120°C |
| Oil Resistance | Good |
| Ozone and UV Resistance | Excellent |
| Flame Resistance | Good — self-extinguishing |
| Shore A Hardness | 40 – 80 (custom available) |
| Color | Black |
| Export Markets | UAE, Germany, USA, Japan, Singapore, Brazil, Turkey, Middle East |
Manufacturing Process
Neoprene Balls are compression-molded from CR rubber compound then precision-ground to dimensional tolerances. Hardness (Shore A) is controlled by compound formulation and specified at order placement.
Compliance & Standards
IEC registered. ISO 3290 Grade G10. Shore A hardness 40–80 available — specify requirement. Flame resistant. Not recommended for strong acids or aromatic solvents — use PTFE or Viton Balls for aggressive chemical service. Regular export to UAE, Germany, USA, Japan, Singapore, Brazil, Turkey, and Middle East.
Frequently Asked Questions
What is the largest Neoprene Ball you manufacture?
We manufacture Neoprene (CR Rubber) Balls up to 310mm diameter — one of the widest size ranges for Neoprene Balls available globally.
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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