• Sleeves for valves

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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.
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 6003 46292-53 | Send an e-mail