The EPV 25 Sample Valve allows sampling during both pressurized and vacuum operation of the reactor at up to 570 ºF. The primary feature is a pneumatically operated piston with a sample chamber of defined volume. Before the sampling operation, the sample chamber is located inside the reactor vessel and is therefore continually immersed in the product, guaranteeing a representative sample. The double sealing of the circular-slit metallic packing and the valve seat allows for sampling during both pressurized and vacuum operation of the reactor. The company offers a one-month free trial program. Call 630/577.0400.