Precision Elastomer O-Rings
O-Rings are one of the most versatile and critical sealing components used across diverse industrial sectors. At Sarthak Industries, we manufacture premium-grade elastomer O-rings designed to prevent leaks in both static and dynamic applications. Backed by advanced compounding technology, our O-rings offer outstanding resistance to extreme temperatures, high pressure, and aggressive chemical environments.
Technical Specifications
| Elastomer Polymers | Nitrile (NBR), Viton (FKM), Silicone (VMQ), EPDM, Neoprene (CR), Polyurethane (PU), Natural Rubber |
| Shore A Hardness | 40 Shore A to 90 Shore A (Durometer) |
| Operating Temperature | -60°C to +300°C (depending on the polymer compound chosen) |
| Sizing Standards | AS568 (American), BS1806 (British), DIN 3771 (German), JIS (Japanese), Metric and Custom sizes |
| Key Performance Certifications | FDA 21 CFR 177.2600 Compliant, USP Class VI (Medical Grade), RoHS, REACH |
Material Selection Guide
Choosing the right rubber polymer compound is essential to ensure longevity and prevent seals from swelling, hardening, or cracking under pressure.
Nitrile (NBR)
Highly resistant to petroleum-based oils, fuels, grease, and water. Ideal for general industrial applications, hydraulics, and automotive systems.
Viton (FKM)
Outstanding resistance to high heat (+200°C continuous, +250°C intermittent), aggressive chemicals, acids, hydrocarbons, and ozone.
Silicone (VMQ)
Non-toxic, FDA-approved, and biocompatible. Maintains flexibility from -60°C to +230°C. Perfect for medical equipment, food processing, and sanitary systems.
EPDM
Excellent resistance to sunlight, UV rays, ozone, weathering, hot water, and steam. Extensively used in outdoor enclosures, HVAC, and automotive cooling.
Applications & Custom Capabilities
- Precision Moulding: Compression, transfer, and injection moulding presses ensure defect-free shapes and flash-less finishes.
- Dynamic & Static Seals: Suitable for reciprocating shafts, cylinders, rotating pumps, flanges, valve stems, and pipe couplings.
- Dimensional Inspection: In-house optical sorting systems verify standard inner diameters (ID) and cross-sections (CS) down to micrometer tolerances.
- Custom Compounding: Formulations can be tweaked for low compression set, electrical insulation, high hardness, or custom colors.
Request a Quote for O-Rings
We supply bulk volumes and custom shapes with rapid turnaround times.