ARI-STEVI Pro 470/471
28Pages

ARI-STEVI® 470 / 471 (DN15-150) Control valve - straight through with screwed seat ring, shaftguided plug and blow-out protected stemWith pneumatic and electric actuators ARI-STEVI® 470 / 471 Pneumatic actuator ARI-DP 32 - 35 • Reversible pneumatic actuator • Actuator with rolling diaphragm • Air supply pressure max. 6 bar • Stem protection by bellow • Maintenance-free O-ring sealing • Assembly of additional devices acc. to DIN IEC 60534-6 ARI-STEVI® 470 / 471 Electric actuator ARI-PREMIO 2,2 - 25 kN ARI-PREMIO-Plus 2G 2,2 - 25kN • Enclosure IP 65 • 2 torque switches • Handwheel • Additional devices available, e.g. potentiometer ARI-STEVI® 470 / 471 Electric actuator with fail-safe function ARI-PREMIO-Plus 2G 9 kN • Enclosure IP 65 • 2 torque switches • Handwheel • Additional devices available, e.g. potentiometer ARI-STEVI® 470 / 471 Electric actuator AUMA SAR 07.2 - 14.6 • Enclosure IP 67 • 2 torque switches • 2 travel switches • Handwheel • Overheating protection for motor as standard • Additional devices available, e.g. potentiometer • Explosion proof version available Edition 05/17 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com! Data sheet 47000

Stem sealing I. EPDM-sealing -10°C to 150°C (allowed for water and steam up to 180°C) III. Stainless steel bellows seal with EPDM-sealing -60°C to 150°C (allowed for water and steam up to 180°C) III. Stainless steel-bellow with pure graphite-packing -60°C to 450°C III. Stainless steel-bellow with V-ring unit -60°C to 220°C Intermediate values for max. permissible operational pressures can be determined by linear interpolation of the given temperature / pressure chart. 11 Valve with extended bonnet, studs and nuts made of A4-70 (at temperatures below -10°C) 2 Edition 05/17 - Data subject to...

ARI-STEVI® 470 / 471 (DN15-150)Plug design Plug design standard Guiding Parabolic plug, metal seat - Leakage class IV acc. to DIN EN 60534-4 - from Kvs 0,1 - Flow characteristic: equal percentage (glp) (from Kvs 100 modified) linear (lin) (from Kvs 1) Plug shaft Plug design optional Guiding Rangeability Parabolic plug, tight closure - Leakage class IV-S1 acc. to DIN EN 60534-4 (special actuator forces necessary) - from Kvs 0,1 - Flow characteristic: - equal percentage (glp) (from Kvs 100 modified) - linear (lin) (from Kvs 1) Plug shaft Parabolic plug with PTFE-soft seal (max. 200°C) -...

ARI-STEVI® 470 / 471 (DN15-150)Pneumatic actuator ARI-DPControl valve in straightway form with pneumatic actuator ARI-DPFig. 470 Fig. 471 Heights and weights Further dimensions refer to pages 20-23. 4 Edition 05/17 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com!

Actuator data Further technical data of the actuator: refer to data sheet ARI-DP. Edition 05/17 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com! 5

max. permissible closing pressures on flow-to-open P2 = 0. Observe pressure-temperature-limits, refer to page 2. I. Fig. 470: PTFE-V-ring unit / EPDM-sealing II. Fig. 470: PTFE- / pure graphite-packing III. Fig. 471: Bellows seal 11 max. differential pressure drop 2) Air supply pressure max. to actuator: 6 bar Restriction: a) 5 bar b) 4,5 bar c) 4 bar d) 3,5 bar e) 3 bar 6 Edition 05/17 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com!

max. permissible closing pressures on flow-to-open P2 = 0. Observe pressure-temperature-limits, refer to page 2. I. Fig. 470: PTFE-V-ring unit / EPDM-sealing II. Fig. 470: PTFE- / pure graphite-packing III. Fig. 471: Bellows seal 11 max. differential pressure drop 2) Air supply pressure max. to actuator: 6 bar Restriction: a) 5 bar b) 4,5 bar c) 4 bar d) 3,5 bar e) 3 bar Edition 05/17 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com! 7

max. permissible closing pressures on flow-to-open P2 = 0. Observe pressure-temperature-limits, refer to page 2. I. Fig. 470: PTFE-V-ring unit / EPDM-sealing II. Fig. 470: PTFE- / pure graphite-packing III. Fig. 471: Bellows seal 11 max. differential pressure drop 2) Air supply pressure max. to actuator: 6 bar Restriction: a) 5 bar b) 4,5 bar c) 4 bar d) 3,5 bar e) 3 bar 8 Edition 05/17 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com!

max. permissible closing pressures on flow-to-open P2 = 0. Observe pressure-temperature-limits, refer to page 2. I. Fig. 470: PTFE-V-ring unit / EPDM-sealing II. Fig. 470: PTFE- / pure graphite-packing III. Fig. 471: Bellows seal 11max. differential pressure drop 2)Air supply pressure max. to actuator: 6 bar Restriction: a) 5 bar b) 4,5 bar c) 4 bar d) 3,5 bar e) 3 bar Edition 05/17 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com! 9

max. permissible closing pressures on flow-to-open P2 = 0. Observe pressure-temperature-limits, refer to page 2. I. Fig. 470: PTFE-V-ring unit / EPDM-sealing II. Fig. 470: PTFE- / pure graphite-packing III. Fig. 471: Bellows seal 1) max. differential pressure drop 2) Air supply pressure max. to actuator: 6 bar Restriction: a) 5 bar b) 4,5 bar c) 4 bar d) 3,5 bar e) 3 bar 10 Edition 05/17 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com!

max. permissible closing pressures on flow-to-open P2 = 0. Observe pressure-temperature-limits, refer to page 2. I. Fig. 470: EPDM-sealing II. Fig. 470: PTFE- / pure graphite-packing III. Fig. 471: Bellows seal 1) max. differential pressure drop 2) Air supply pressure max. to actuator: 6 bar Restriction: a) 5 bar b) 4,5 bar c) 4 bar d) 3,5 bar e) 3 bar Edition 05/17 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com! 11

max. permissible closing pressures on flow-to-open P2 = 0. Observe pressure-temperature-limits, refer to page 2. II. Fig. 470: PTFE- / pure graphite-packing III. Fig. 471: Bellows seal 1) max. differential pressure drop 2) Air supply pressure max. to actuator: 5 bar Restriction: a) 5 bar b) 4,5 bar c) 4 bar d) 3,5 bar e) 3 bar 12 Edition 05/17 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com!