KVT GmbH Kirchzarten KVT GmbH Kirchzarten KVT GmbH Kirchzarten
KVT GmbH Kirchzarten KVT GmbH Kirchzarten KVT GmbH Kirchzarten

Pinch Sleeves


for pneumatically operated KVT - pinch valves



 

KVT
Nr.

material

trade-
name

material
(inside)

material
(outside)

T max.
[°C]

A
T
E
X

Bemer-
kungen

NN

natural rubber

natural rubber

NR

NR

80

*

standard sleeve,
abrasion resistant

WN

natural rubber, FDA, black inside

natural rubber

NR-L sw

NR

80



LN

natural rubber, FDA, "white" inside

natural rubber

NR-L h

NR

70



HH

natural rubber, "heat-proof"

natural rubber
hitzefest

NR-H

NR-H

90



IN

butyl-natural rubber-combination

Isobutylen-
Isopren

IIR

NR

90



SN

styrol-butadien-rubber

Buna EM

SBR

NR

80




EE

Ethylen-propylen-dien-terpolymere

Buna AP

EPDM

EPDM

120

*


ÄE

Ethylen-propylen-dien-terpolymere, FDA, black inside

Buna AP

EPDM-L sw

EPDM

120

*


PE

Ethylen-propylen-dien-terpolymere, FDA, "white" inside

Buna AP

EPDM-L h

EPDM

110




BN

acrylnitril-butadien-rubber / nitril rubber

Perbunan

NBR

NR

80

*


GN

acrylnitril-butadien-rubber / nitril rubber, FDA, black inside

Perbunan

NBR-L

NR

80

*


DN

acrylnitril-butadien-rubber / nitril rubber, FDA, "white" inside

Perbunan

NBR-L h

NR

80




CN

polychloropren-rubber

Neoprene

CR

NR

80



MN

chlorosulphonyl-polyethylen-rubber

Hypalon

CSM

NR

80



FC

fluor-rubber

Viton

FPM,
FKM

CR

120

*



KK

silikon rubber

silikon

KK

KK

180



MQ

silikon rubber, FDA

silikon

MQ

MQ

180



FDA: part of sleeve in contact with medium acc FDA
black inside: inside of sleeve made of black rubber
"white" inside: inside of sleeve made of white rubber
ATEX: available with conductive inside (R < 1.000.000 Ohm), additonal fee!
KTW: guidance for testing of materials made for contact with drinking water (acc. German Federal Environmental Agency)

Abbreviations acc. ISO 1629:1976 (E) and ASTM D-1418-79.


You are unsure about chemical restistance of sleeve materials. Please feel free to look at the following table of resistancy (sorry, only in german available):


If you have other ideas or needs, please feel free to contact us!

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