Wafer with Stainless Steel Disc – with Double Acting Actuator Article no. EPDM Article no. NITRIL Size Actuator Size RSBUTWE050DA RSBUTWN050DA 2" AP1DA RSBUTWN065DA 21/2" AP3DA RSBUTWE065DA 21/2" AP2DA RSBUTWE080DA RSBUTWN080DA 3" AP3DA Wafer Pattern Butterfly Valve BS4504 - PN16 / ANSI 150 Fitted with Pneumatic Actuator Materials Body Cast Iron GG25 Polyurethane Coated Disc/shaft 316 Stainless Steel Liner EPDM / NITRIL Disc in 316 Stainless Steel – with Double Acting Actuator Article no. EPDM Article no. NITRIL Size Actuator Size RSBUTLN050DA 2" AP2DA RSBUTLE050DA 2" AP1DA RSBUTLN065DA 21/2" AP3DA RSBUTLE065DA 21/2" AP2DA RSBUTLE080DA RSBUTLN080DA 3" AP3DA Lugged Butterfly Valve for Flanges BS4504 - PN16 Fitted with Pneumatic Actuator ENGLISH RS, Professionally Approved Products, gives you professional quality parts across all products categories. Our range has been testified by engineers as giving comparable quality to that of the leading brands without paying a premium price.