Resistance of U-shaped seals

Pull-ring connections with U-shaped seals when compared with pull-rings with sealant (mastic) are considerably tighter.
In order to withstand different chemical and thermal conditions, U-shaped seals are delivered in different rubber qualities.

The following consistencies are standard qualities.

Food quality with FDA-Approval

NBR (Perbunan)

Colour: grey-white for 1 mm, grey for 2 mm
Temperature resistance: -20 up to +100 °C
Suitable for: oil, fats, grease, petrol, petroleum, partially also against solvents
Less suitable for: steam, chlorinated carbohydrogens
Detectable by metal detectors

DETECTABLE DESIGN (Silicone)

Colour: blue
Temperature resistance: -60 up to +250 °C
Suitable for: many organic oils and greases, saline solutions, ozone, cool water, partially also against solvents, resistant against ageing and weather
Less suitable for: hot water, steam, acids, alkalies, mineral oil, fats and greases - diesel oil, benzol, petrol

 

More information
Food quality due BGA Category IV

SI (Silicone)

Colour: beige
Temperature resistance:  -60 up to +250 °C
Suitable for: many organic oils and greases, saline solutions, ozone, cool water, partially also against solvents, resistant against ageing and weather
Less suitable for: hot water, steam, acids, alkalies, mineral oil, fats and greases - diesel oil, benzol, petrol
Electrostatic conductivity | Food quality with FDA-Approval

EPDM (Keltan)

Colour: black
Temperature resistance:  -30 up to +120 °C
Suitable for: water, steam, acids, alkalies, ozone, partial also against solvents like aceton or MEK, resistant against ageing and weather
Less suitable for: mineral oil, greases, fuels

conductive at powder coated steel, galvanized mild steel and stainless steel

 

FPM (Viton)

Colour: brown red
Temperature resistance:  -18 up to +230 °C
Suitable for: oil, grease, acids, alkalies, petrol, bencene, ozone, many solvents, very high resistance against chemicals, heat and ageing
Less suitable for: steam, detergents like acetone and MEK
You have questions about our U-shaped seals? Contact our sales team now!

Discover our standard range