Black O Seal Ring

Our factory specializes in producing Black O Seal Rings, which are made of silicone raw materials and do not contain heavy metals or harmful substances. Black appearance, smooth surface, customizable size according to needs. Widely used in occasions with high environmental requirements. Regular size stock is sufficient, supporting non-standard mold customization.

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Product Description

After being installed in the groove, the gap is blocked by compression deformation. Silicone has better elasticity than rubber, it bounces back quickly after being pressed down, and is not easily permanently deformed even when pressed for a long time. Silicone is more durable than nitrile rubber when used in places with temperature changes.

The black silicone sealing ring is made of food grade gas-phase silicone. Used on food or drinking water equipment, it will not release harmful substances and meets export environmental protection requirements.

Name	Black O Seal Ring
Material	Rubber
Standards	GB,DIN, BSW, JIS, UNC, UNF, Non-standard, Customized Drawing
Thread	Metric Coarse, Metric Fine, UNC, UNF, BSW, BSF.
Sizes	Φ6-Φ60
Finish	Plain/Black/others
Price	0.04usd/pcs-0.50usd/pcs
MOQ	Stardard item(Usually little hundred-little thousand)/determined if non-standard

Product Feature

Black is pure, non fading and non polluting: The added carbon black is food grade and combines well with silicone, so it will not fade. After soaking in a water purifier for several years, the water is still clear and there will be no black precipitation. Black is more resistant to dirt than transparent, and oil stains on the machine are easily visible.

Good resilience, can bounce back after being compressed for a long time: Silicone has better elasticity than nitrile rubber, and deformation is small after long-term compression. The sealing ring has been pressed for about a year. After removing it, it can be restored to its original shape. Reinstall it and it can still be used.

Dimensional rules and stable compression ratio: The inner diameter and wire diameter tolerances of the sealing ring are strictly controlled, and the size of the same batch of goods is consistent. After being installed in the groove, the compression rate remains stable and the sealing effect is consistent. There won't be some places that are tightly pressed and some places that are loose.