圈垫

Seal Ring

Small parts that keep big systems sealed

Small as they are, seal rings decide whether lines and housings leak. We produce O-rings, square rings, flat washers and shaped seals — nitrile for oil, EPDM for coolant and brake fluid, and silicone for high temperatures.

NBREPDMVMQ
Seal Ring
Illustration — actual part per sample

Key features

Wide range

Common standard sizes and custom dimensions.

Media-matched

NBR for oil, EPDM for coolant, VMQ for heat.

Low compression set

Stable recovery for long-lasting sealing.

Clean finish

Precision tooling for minimal flash and consistent size.

Specifications

Material
NBR / EPDM / VMQ
Hardness
50 – 90 Shore A
Types
O-ring, square ring, washer, shaped
Size
To standard or drawing
Color
Black / red / blue, etc.

* Typical values — customizable to your drawing

Material options

NBR

Nitrile rubber-30 to +110 °C

Excellent oil and fuel resistance, abrasion resistant

EPDM

Ethylene propylene diene rubber-40 to +150 °C

Weather, ozone, coolant and hot-water resistant; good insulation

VMQ

Silicone rubber-60 to +230 °C

Extreme temperatures, aging resistant, odourless, colorable

Applications

01Hose and nylon connector seals
02Oil drain plug washers
03Sensor and housing seals
04Cooling system interfaces

Have a drawing or sample? Let us quote it.

Tell us the application, media, temperature and pressure requirements. Our engineers will reply with a proposal and quotation within 24 hours.