Tettningsmaterialer :

08-039-001

Understende tabell er kun retningsgivende. Kunden m selv bestemme hvilken
setepakning som passer til deres applikasjon og ventiler .

 
NAME Composition

Genral Application

Temprature Limit

Other Limits

Avalability

EPDM

Ethylene - Propylene
Terpolymer
Hot and Cold Water -Steam - Sea water -
Brine-Esters-Ketone
Alkalis-Caustic Soda
-45C     -49F
+120C  +248F
Not recommanded for
hydrocarbons-oils-fats
Normal Stock

BUNA N

(NBR)

Copolymer of Butadien; Hydrocarbons
Natural Gas
Oils and fat- Air- Hot
and Cold Water-
Seawater -Gasoline
-20C      -4F
+80
C     +176F
Not recommanded for Solvents - Benzene-
Xylol

 

Normal Stock

Neoprene

Chloro butadiene Water - Greases -
Some oils
Ailu Diluted mineral acids
- 25C      -13F
+100
C    +212F
Not recommanded for
Ketones-thinners
Consentrated acids
-

Hypalon

(CSM)

Chlorosulfonated
Polyethylene
Mineral acids
Organic acids
Oxidising substances
Oils and Greases
-30C      -22F
+135
C  +275F
Not recommanded for Nitric acid - Steam
Ketones
-

Viton

(FPM)

Fluor carbon polymer Mineral acids
Oils
Hydrocarbons
-20C        -4F
+135
C     +275F
Not recommanded for
Steam - Freon 22
Kei
Esters Solvents - Alkalis
-

Teflon

(PTFE

Polytetrafluoro
Ethylene
Solvents
Corrosive Products
-40C -40F
+180C +356F
Not recommanded for
fluid containing
powders. Alkaline
metals (sodium,
potassium) Gaseous
Fluorine
Normal for ball valve

 

 

11.10.2008