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Sleeves for PREMAFLEX pinch valves

The highly elastic sleeves are the core pieces of our pinch valves and inner-tube valves. The sleeve is centred in the casing and is held on both sides by clamping flanges or clamping pieces. Built-in fabric inserts guarantee the closure of the sleeve in one plane to the central axis as well as a long service life. Due to the solid and simple construction of our PREMAFLEX pinch valves, the replacement of this spare part is possible with just a few movements and therefore contributes to low maintenance costs. With the help of detailed assembly instructions, a new sleeve can be installed on site and production downtimes can be shortened. For this reason, our large stock is kept up-to-date with almost all common nominal sizes and elastomer qualities for your required operating conditions.
Sleeves for valves 01_premaflex_sleeves

Overview of the elastomer qualities of our sleeves (other qualities on request)

NR standard Natural rubber black max. 80°C
NR SKAZ Natural rubber black (particularly resistant to abrasion) max. 80°C
NR LQ-clear Natural rubber food-grade clear max. 80°C
NR LQ-black Natural rubber food-grade black max. 100°C
NR E-conductive Natural rubber electrical conductive max. 80°C
CR Neoprene black max. 100°C
NBR Nitrile butadiene rubber black max. 100°C
NBR LQ-clear Nitrile butadiene food-grade clear max. 100°C
NBR E conductive Nitrile butadiene electrical conductive max. 100°C
EPDM EPDM black max. 120°C
EPDM LQ-clear EPDM food-grade clear max. 120°C
SBR Styrene butadiene black max. 100°C
FPM Viton black max. 100°C
MQ Silicone translucent max. 150°C
IIR Butyl black max. 100°C
CSM Hypalon black max. 100°C


Mr. Wolfgang Körber | Sales / Engineering | +49 6172 6778-53 | Send an e-mail