SERIES 300 HomeFlexible ConnectionsMercer Rubber Expansion JointsSleeve Style Hand Wrapped JointsSeries 300 Series 300 Since sleeve type expansion joints cannot be readily protected with control rods, it is IMPERATIVE that piping be axially aligned, properly guided and PROPERLY ANCHORED.Periodic tightening of clamps may be necessary. Style – 301 Read more Style – 302 Read more Style – 303 Read more Style – 304 Read more Data Sheet Material & Operating Temperatures Series 300TubeCoverMax Oper. Temp.BButylButyl250°FEEPDMEPDM250°FHHypalonHypalon225°FHNHypalonNeoprene225°FNNeopreneNeoprene225°FNHNeopreneHypalon225°FNiNitrileNitrile210°FNiNNitrileNeoprene210°FNRNeopreneNatural225°FRNaturalNatural180°FRNNaturalNeoprene180°FVViton®Viton®250°F