Pinch valve RVA

pneumatically-operatedpurgeflange

The air operated pinch valves of the RVA series are available in the nominal diameters of DN25 to DN350. DN400 and DN450 upon request. They are designed with a flange connection complying with DIN EN 1092 (PN10/16) as standard. On request, the air operated pinch valves of the RVA series can be made with a flange connection complying with ANSI B 16.5- 150lbs, if required. Structure of RVA series The RVA series air operated pinch valves consist of the essential part of every pinch valve, the sleeve, and a two-part (half shell) body. The pinch valve sleeve is positioned in the centre of the RVA series air operated pinch valves' body because of both of its flange ends and the geometry of the sleeve. Both of the body halves are sealed pressure tight against each other using a PTFE packing cord. Materials of air operated Pinch Valves RVA series A selection of 10 different elastomer grades for the sleeve (NR, NR food quality, CR, EPDM, EPDM food quality, FPM/FKM, NBR, NBR food quality, CSM, and IIR) ensures that the RVA series air operated pinch valves have a very wide and practically unrestricted field of application. The RVA series air operated pinch valve's body is available in either grey cast iron or aluminium The DN400 nominal diameter is available in steel