Resistance of U-shaped seals

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JACOB Tubing Systems – Innovation, Quality and Service Knowledge 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

FKM (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

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