PISTON VALVES Range   Cast iron :  KVN III 10-50 / KVN III 65 - 150 / KVN III 200 / KVMN III 1/2"-2"   Steel :  KVN VIII 10-50 / KVN VIII 65-200 / KVMN VIII 1/2"-2" /KVSN VIII 1/2"-2" / KVs / KVMs / TCMs / KVI   Acid-resistant stainless steel :  KVN Xc 10-50 / KVMN Xc 1/2"-2" / KVI   Cast iron ANSI range : KVNM 1/2"-2" 225 CWP NPT    Steel  and stainles steel ANSI range :       KVMN 1/2"-2" 900 CWP  NPT / KVSN 1/2"-2" 900 CWP SW       KVSN 2"1/2-8" ANSI 300 BW / KVN 1/2"-2" ANSI 150/300 FLANGED      KVN 2"1/2-8" ANSI 150/300 FLANGED Pressures PN 16 / 20 / 40 / 50 Temperatures 400°C (max.) Accessories / Optional KVN KX1 EPA Application Tool kits (extractor, borer, push rod, grease) Possibility of pneumatic or electric actuator Limit switches Special Features/Benefits Technical data / Technical data ANSI range No stem packing, no seat / Elastic seal Large sealing surface / Reinforced graphite sealing rings Long-Lasting / Maintenance-free / Easy to restore Applications Shut-off valve (on/off) Steam, superheated water, heat transfer media. Approvals Fire safety / TـV End Connections Flanged ISO PN 16, 20, 40, 50 / ANSI 150, 300 Threaded NPT / Socket welding, Butt welding Certification 3.1 B according to EN 10 204