ARI-STEVI 8 / 9 (DN5-00) Control valve in straightway form with screwed seat ring With pneumatic and electric actuators ARI-STEVI 8 / 9 Pneumatic actuator ARI-DP 30-3 Reversible pneumatic actuator Actuator with rolling diaphragm Air supply pressure min. bar Air supply pressure max. 6 bar Stem protection by bellow Maintenance-free O-ring sealing Assembly of additional devices acc. to DIN IEC 6053-6 Page ARI-STEVI 8 / 9 Electric actuator ARI-PREMIO-Plus 2G 2,2-5kN Digital actuator control BLDC-Engine technology Energy-efficient Enclosure IP 65 2 torque switches Handwheel Additional devices available, e.g. potentiometer Fig. 8 Page 7 Fig. 9 Features: Compact design Bonnet with rotable traverse Optional: for noise reduction Replaceable seat Reduceable s Shaft plug guide Edition 05/7 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com! Datasheet 800 english
ARI-STEVI 8 / 9 (DN5-00) Technical data Figure Nominal pressure Material Nominal diameter 2.8 PN6 EN-JL00 DN5-00 22.8 / 22.9 PN6 EN-JS09 DN5-00 23.8 / 23.9 PN25 EN-JS09 DN5-00 25.8 PN0 EN-JS09 DN5-50 32 8 / 32.9 PN6.069+N DN5-00 3.8 / 3.9 PN25.069+N DN5-00 35.8 / 35.9 PN0.069+N DN5-00 52 8 / 52.9 PN6.08 DN5-00 5 8 / 5.9 PN25.08 DN5-00 55.8 / 55.9 PN0.08 DN5-00 Other materials and versions on request. Information / restriction of technical rules need to be observed! A production permission acc. to TRB 80 No. 5 is available. (acc. to TRB 80 No. 5 EN-JL00 is not allowed.) The engineer, designing a system or a plant, is responsible for the selection of the correct valve. Resistance and fitness must be verified, contact manufacturer for information (refer to Product overview and Resistance list). Stem sealing Fig. 8 standard optional I. PTFE-V-ring unit -0 C to 220 C I. EPDM-sealing -0 C to 50 C (allowed for water and steam up to 80 C) Fig. 9 standard optional III. Stainless steel-bellow with pure graphite-packing -60 C to 00 C III. Stainless steel-bellow with V-ring unit -60 C to 220 C Pressure-temperature-ratings Intermediate values for max. permissible operational pressures can be determined by linear interpolation of the given temperature / pressure chart. acc. to DIN EN 092-2 -60 C to <-0 C ) -0 C to 20 C 50 C 200 C 250 C 300 C 350 C 00 C EN-JL00 PN6 (bar) -- 6, 2,8,2 9,6 -- -- EN-JS09 PN6 (bar) -- 6 5,5,7 3,9 2,8,2 -- EN-JS09 PN25 (bar) -- 25 2,3 23 2,8 20 7,5 -- EN-JS09 PN0 (bar) -- 0 38,5 36,8 3,8 32 28 -- acc. to manufacturers standard -60 C to <-0 C ) -0 C to 20 C 50 C 200 C 250 C 300 C 350 C 00 C.069+N PN25 (bar) 8,7 25 23,9 22 20 7,2 6,8.069+N PN0 (bar) 30 0 38, 35 32 28 25,7 23,8 acc. to DIN EN 092- -60 C to <-0 C ) -0 C to 00 C 50 C 200 C 250 C 300 C 350 C 00 C.08 PN0 (bar) 0 0 36,3 33,7 3,8 29,7 28,5 27, ) Valve with extended bonnet, screws and nuts made of A-70 (at temperatures below -0 C) 2 Edition 05/7 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com!
ARI-STEVI 8 / 9 (DN5-00) Plug design Plug design standard Guiding Rangeability, metal seat - Leakage class IV acc. to DIN EN 6053- - from Kvs 0, - Flow characteristic: - modified equal percentage (glp) - linear (lin) Shaft 50 : Plug design optional Guiding Rangeability, increased sealing thightness in the seat - Leakage class IV-S acc. to DIN EN 6053- - metallic polished - from Kvs 0, - Flow characteristic: - modified equal percentage (glp) - linear (lin) (special actuator forces necessary, closing pressures on request) Shaft 50 : with PTFE-soft seal (max. 200 C) - Leakage class VI acc. to DIN EN 6053- - Flow characteristic: - modified equal percentage (glp) - linear (lin) Shaft 50 : with armoured sealing edge - Leakage class IV acc. to DIN EN 6053- - from Kvs - Flow characteristic: - modified equal percentage (glp) - linear (lin) Shaft 50 : metal-seated - Leakage class IV aac. to DIN EN 6053- - from Kvs - Flow characteristic: - modified equal percentage (glp) - linear (lin) Flow direction for gases and steam for reduction of the acoustic level Shaft / Seat ring 30 : Edition 05/7 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com! 3
Control valve in straightway form with pneumatic actuator ARI-DP ARI-STEVI 8 / 9 (DN5-00) Pneumatic actuator ARI-DP Fig. 8 Fig. 9 Actuator data DP30 DP32 DP33 DP3 Ø A 68 250 300 05 Effective diaphragm area (cm 2 ) 80 250 00 800 Technical data for actuator refer to data sheet ARI-DP. Dimensions and weights DN 5 20 25 32 0 50 65 80 00 L 30 50 60 80 200 230 290 30 350 Fig. 8 DP30 H 35 35 369 369 38 39 PN6-0 (kg) 8 9 0 2 7 DP32 H 378 393 00 07 29 5 PN6-0 (kg) 7 9 22 28 35 7 DP33 H 58 80 96 PN6-0 (kg) 3 53 DP3 H 527 59 565 PN6-0 (kg) 6 7 83 Fig. 9 DP30 H 539 539 57 57 538 50 PN6-0 (kg) 5 8 20 27 30 DP32 H 556 57 59 633 66 662 PN6-0 (kg) 25 32 35 52 68 DP33 H 68 697 73 PN6-0 (kg) 7 58 7 DP3 H 753 766 782 PN6-0 (kg) 77 88 0 Other dimensions refer to pages 9. Technical data for actuator refer to data sheet ARI-DP. Edition 05/7 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com!
ARI-STEVI 8 / 9 (DN5-00) Closing pressure: pneumatic actuator ARI-DP Spring closes on air failure (stem extended by spring) max. permissible closing pressures on flow-to-open P2 = 0. Observe pressure-temperature-limits, refer to page 2. DN 5 20 25 (m 3 /h) 0,6 / 0, 0,63 / 0, / 0,6 / 0, 0,63 / 0, / 6,3 0,6 / 0, 0,63 / 0, / 6,3 0 max. diff. pressure ) (bar) 0 0 0 (m 3 /h) -- --,6 / -- --,6 / -- --,6 / 6,3 max. diff. pressure ) (bar) -- -- 0 -- -- 0 -- -- 0 Seat-Ø 3 5 2 3 5 2 6 3 5 2 6 22 Travel 0 0 0 DP30 80 cm 2 Air supply pressure min. (bar) I. (bar) 0 0 0 0 0 0 0 0 0 0 0 0 III. (bar) 32 32 3 32 32 3 30 32 32 3 30 30 DN 32 0 50 (m 3 / /h) 6,3 0 6 6,3 0 6 25 0 6 25 0 max. diff. pressure ) (bar) 0 0 30 0 30 Kvs-Wert (m 3 /h) 6,3 0 6,3 0 6 6,3 0 6 25 max. diff. pressure ) (bar) 0 0 0 Seat-Ø 2 6 22 28 6 22 28 35 22 28 35 3 Travel 0 5 0 5 0 5 DP30 I. (bar) 0 0 0 0 0 0 80 cm 2 III. (bar) 3 30 30 30 30 30 DP32 250 cm 2 Air supply pressure min. (bar) I. (bar) 0 0 0 0 0 28 III. (bar) 0 0 39 0 39 26 DN 65 80 00 (m 3 /h) 6 25 0 63 25 0 63 00 0 63 00 60 max. diff. pressure ) (bar) 0 30 30 0 30 30 0 8 30 0 8 3 (m 3 /h) 0 6 25 0 6 25 0 63 25 0 63 00 max. diff. pressure ) (bar) 0 0 0 Seat-Ø 28 35 3 56 35 3 56 70 3 56 70 95 Travel 5 20 5 20 25 5 20 25 30 DP32 I. (bar) 0 0 28 0 28 28 250 cm 2 III. (bar) 0 39 26 39 26 26 DP33 I. (bar) 0 25 0 25 6 0 25 6 8 00 cm 2 III. (bar) 0 2 0 2 5 0 2 5 8 DP3 I. (bar) 0 0 32 0 32 7 800 cm 2 III. (bar) 0 0 3 0 3 6 max.: bar) Air supply pressure min. (bar) I. Fig. 8: PTFE-V-ring unit / EPDM-sealing III. Fig. 9: Bellows seal ) max. differential pressure drop Edition 05/7 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com! 5
I. Fig. 8: PTFE-V-ring unit / EPDM-sealing III. Fig. 9: Bellows seal ) max. differential pressure drop ARI-STEVI 8 / 9 (DN5-00) Closing pressure: pneumatic actuator ARI-DP Spring opens on air failure (stem retracting by spring) max. permissible closing pressures on flow-to-open P2 = 0. Observe pressure-temperature-limits, refer to page 2. DN 5 20 25 (m 3 /h) 0,6 / 0, 0,63 / 0, 6 Edition 05/7 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com! / 0,6 / 0, 0,63 / 0, / 6,3 0,6 / 0, 0,63 / 0, / 6,3 0 max. diff. pressure ) (bar) 0 0 0 (m 3 /h) -- --,6 / -- --,6 / -- --,6 / 6,3 max. diff. pressure ) (bar) -- -- 0 -- -- 0 -- -- 0 Seat-Ø 3 5 2 3 5 2 6 3 5 2 6 22 Travel 0 0 0 DP30 80 cm 2 Air supply pressure min. (bar) 2 3 I. (bar) 0 0 33 0 0 33 8 0 0 33 8 8 III. (bar) 5 3 5 3 3 5 3 3 2 I. (bar) 0 0 0 0 0 28 III. (bar) 9 9 8 9 9 8 7 9 9 8 7 6 I. (bar) 0 III. (bar) 33 33 32 33 33 32 3 33 33 32 3 3 DN 32 0 50 (m 3 / /h) 6,3 0 6 6,3 0 6 25 0 6 25 0 max. diff. pressure ) (bar) 0 0 30 0 30 (m 3 /h) 6,3 0 6,3 0 6 6,3 0 6 25 max. diff. pressure ) (bar) 0 0 0 Seat-Ø 2 6 22 28 6 22 28 35 22 28 35 3 Travel 0 5 0 5 0 5 I. (bar) 33 8 8 8 8 8 2 DP30 III. (bar) 3 3 2 3 2 2 80 cm 2 I. (bar) 0 0 28 0 28 28 3 III. (bar) 8 7 6 7 6 6 I. (bar) 0 0 0 III. (bar) 32 3 3 3 3 3 I. (bar) 0 0 38 23 0 38 23 38 23 9 2 DP32 III. (bar) 25 25 2 9 25 2 9 2 9 7 250 cm 2 max.: bar) Air supply pressure min. (bar) Air supply pressure min. (bar) 3 I. (bar) 0 0 0 0 36 0 0 36 23 III. (bar) 0 0 0 0 33 0 0 33 2 I. (bar) 0 0 38 III. (bar) 0 0 36 DN 65 80 00 (m 3 /h) 6 25 0 63 25 0 63 00 0 63 00 60 max. diff. pressure ) (bar) 0 30 30 0 30 30 0 8 30 0 8 3 (m 3 /h) 0 6 25 0 6 25 0 63 25 0 63 00 max. diff. pressure ) (bar) 0 0 0 Seat-Ø 28 35 3 56 35 3 56 70 3 56 70 95 Travel 5 20 5 20 25 5 20 25 30 2 I. (bar) 22 8 8 8 III. (bar) 8 7 7 7 DP32 I. (bar) 0 36 23 36 23 23 3 250 cm 2 III. (bar) 0 33 2 33 2 2 I. (bar) 0 38 0 38 38 III. (bar) 0 36 0 36 36 5 I. (bar) 0 0 0 III. (bar) 0 0 0 2 I. (bar) 0 30 20 30 20 7 20 7 3 III. (bar) 0 28 8 0 28 8 0 6 8 0 6 3 DP33 I. (bar) 0 0 26 0 0 26 7 0 26 7 9 3 00 cm 2 III. (bar) 0 0 25 0 0 25 6 0 25 6 8 max.: 5 bar) 5 I. (bar) 0 0 26 0 26 III. (bar) 0 0 26 0 26 I. (bar) 36 36 9 III. (bar) 36 36 9
ARI-STEVI 8 / 9 (DN5-00) Electric actuator ARI-PREMIO-Plus 2G Control valve in straightway form with electric actuator PREMIO-Plus 2G Fig. 8 Fig. 9 Actuator data 2,2-5 kn 5 kn A 7 20 B 56 8 X 50 200 Technical data for actuator refer to data sheet PREMIO-Plus 2G Dimensions and weights DN 5 20 25 32 0 50 65 80 00 L 30 50 60 80 200 230 290 30 350 Fig. 8 2,2 kn H 96 96 5 5 526 533 PN6-0 (kg) 0 2 6 9 5 kn H 96 96 5 5 526 533 550 572 588 PN6-0 (kg) 0 2 6 9 25 32 5 kn H 667 689 705 PN6-0 (kg) 29 36 8 Fig. 9 2,2 kn H 68 68 689 689 680 682 PN6-0 (kg) 6 7 20 22 29 32 5 kn H 68 68 689 689 680 682 776 789 805 PN6-0 (kg) 6 7 20 22 29 32 38 9 65 5 kn H 893 906 922 PN6-0 (kg) 2 53 69 Other dimensions refer to pages 9. Edition 05/7 - 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. ARI-STEVI 8 / 9 (DN5-00) Closing pressure: electric actuator ARI-PREMIO-Plus 2G DN 5 20 25 (m 3 0,63 / / 0,63 / / 0,63 / / /h) 0,6 / 0,6 / 6,3 0,6 / 0, 0, 0, 0, 0, 0, max. diff. pressure ) (bar) 0 0 0 (m 3 /h) -- --,6 / -- --,6 / -- --,6 / 6,3 0 6,3 max. diff. pressure ) (bar) -- -- 0 -- -- 0 -- -- 0 Seat-Ø 3 5 2 3 5 2 6 3 5 2 6 22 Travel 0 0 0 I. (bar) 0 0 0 0 0 0 0 0 0 0 0 0 Closing pressure III. (bar) 33 32 3 33 32 3 3 33 32 3 3 30 2,2 kn Operating time (s) 0 0 0 Operating speed (mm/s) 0,25 0,25 0,25 DN 32 0 50 (m 3 / /h) 6,3 0 6 6,3 0 6 25 0 6 25 0 max. diff. pressure ) (bar) 0 0 30 0 30 (m 3 /h) 6,3 0 6,3 0 6 6,3 0 6 25 max. diff. pressure ) (bar) 0 0 0 Seat-Ø 2 6 22 28 6 22 28 35 22 28 35 3 Travel 0 5 0 5 0 5 I. (bar) 0 0 0 28 0 0 28 7 0 28 7 Closing pressure III. (bar) 3 3 30 25 3 30 25 30 25 9 2,2 kn Operating time (s) 0 60 0 60 0 60 Operating speed (mm/s) 0,25 0,25 0,25 I. (bar) 0 0 0 0 0 30 Closing pressure III. (bar) 0 0 0 0 0 28 5 kn Operating time (s) 60 60 60 Operating speed (mm/s) 0,25 0,25 0,25 DN 65 80 00 (m 3 /h) 6 25 0 63 25 0 63 00 0 63 00 60 max. diff. pressure ) (bar) 0 30 30 0 30 30 0 8 30 0 8 3 (m 3 /h) 0 6 25 0 6 25 0 63 25 0 63 00 max. diff. pressure ) (bar) 0 0 0 Seat-Ø 28 35 3 56 35 3 56 70 3 56 70 95 Travel 5 20 5 20 25 5 20 25 30 I. (bar) 0 0 29 7 0 29 7 0 29 7 0 5 Closing pressure III. (bar) 0 0 28 6 0 28 6 0 28 6 0 5 5 kn Operating time (s) 39 53 39 53 66 39 53 66 79 Operating speed (mm/s) 0,38 0,38 0,38 I. (bar) 0 0 0 0 36 0 0 36 9 Closing pressure III. (bar) 0 0 0 0 35 0 0 35 9 5 kn Operating time (s) 39 53 39 53 66 39 53 66 79 Operating speed (mm/s) 0,38 0,38 0,38 Further operating speeds: refer to data sheet PREMIO-Plus 2G Operating time [s]= Travel [mm] Operating speed [mm/s] I. Fig. 8: PTFE-V-ring unit / EPDM-sealing III. Fig. 9: Bellows seal ) max. differential pressure drop 8 Edition 05/7 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com!
Control valve in straightway form ARI-STEVI 8 / 9 (DN5-00) Dimensions: Standard design Fig. 8 Fig. 9 DN 5 20 25 32 0 50 65 80 00 Dimensions M Fig. 8 / Fig. 9 M50 x,5 ØZ Fig. 8 / Fig. 9 60 ØS Fig. 8 / Fig. 9 2 6 H Fig. 8 93 08 23 30 37 59 75 Fig. 9 278 286 277 279 363 376 392 H2 Fig. 8 / Fig. 9 65 Face-to-face dimension FTF series acc. to DIN EN 558 L 30 50 60 80 200 230 290 30 350 Flanges acc. to DIN EN 092-/-2 Flange holes / -thickness tolerances acc. to DIN 2533/25/255 PN6 220 ØD PN25 95 05 5 0 50 65 85 200 235 PN0 PN6 80 ØK PN25 65 75 85 00 0 25 5 60 90 PN0 PN6 x 8 8 x 8 n x Ød PN25 x x 8 8 x 8 8 x 8 8 x 22 PN0 Weight Fig. 8 PN6-0 (kg) 5 6 8 0 3 9 26 38 Fig. 9 PN6-0 (kg) 0 6 23 26 32 3 59 max. permissible thrust Fig. 8 Fig. 9 (kn) (kn) 5 7,5 5 Edition 05/7 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com! 9
ARI-STEVI 8 (DN5-00) Valve: standard design I. PTFE-V-ring unit I. EPDM-sealing Pos. Sp.p.. Description Fig. 2.8 Fig. 22./23./25.8 Fig. 3./35.8 Fig. 55.8 Body EN-GJL-250, EN-JL00 EN-GJS-00-8U-LT, EN-JS09 GP20GH+N,.069+N GX5CrNiMo9--2,.08 2 x Seat ring X20Cr3+QT,.02+QT X6CrNiMoTi7-2-2,.57 3 x Plug X20Cr3+QT,.02+QT X6CrNiMoTi7-2-2,.57 x Thread pin A 5 x Stem X20Cr3+QT,.02+QT X6CrNiMoTi7-2-2,.57 7 Bonnet GP20GH+N,.069+N GX5CrNiMo9--2,.08 8 Giude bushing X20Cr3+QT,.02+QT (hardened) X6CrNiMoTi7-2-2,.57 (hardened) 9 x Gasket pure graphite (CrNi laminated with graphite) 0 Stud 25CrMo,.728 A - 70 Hexagon nuts C35E,.8 A 2 V-ring unit PTFE / Graphite Washer X5CrNi8-0,.30 5 Compression spring X0CrNi8-8,.30 6 Bush PTFE (strengthened) 7 Gasket X6CrNiMoTi7-2-2,.57 8 Scraper PTFE (strengthened) 9 Screw joint X8CrNiS8-9,.305 20 Screw joint X8CrNiS8-9,.305 / EPDM 30 x Central nut X8CrNiS8-9,.305 Set: refer to Pos. 00 Stem sealing Fig. 8 00 x V-ring unit set Set aus: Pos. 2,, 5, 6, 7, 8, 9 20 x EPDM-sealing set Set aus: Pos. 7, 20 Spare parts 0 Edition 05/7 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com!
ARI-STEVI 9 (DN5-00) Valve: standard design III. Stainless steel-bellow with pure graphite-packing III. Stainless steel-bellow with V-ring unit Pos. Sp.p. Description Fig. 22./23.9 Fig. 3./35.9 Fig. 55.9 Body EN-GJS-00-8U-LT, EN-JS09 GP20GH+N,.069+N GX5CrNiMo9--2,.08 2 x Seat ring X20Cr3+QT,.02+QT X6CrNiMoTi7-2-2,.57 3 x Plug X20Cr3+QT,.02+QT X6CrNiMoTi7-2-2,.57 x Thread pin A 9 x Gasket Pure graphite (CrNi laminated with graphite) 0 Stud 25CrMo,.728 A - 70 Hexagon nuts C35E,.8 A 30 x Central nut X8CrNiS8-9,.305 200 Bellows housing EN-GJS-00-8U-LT, EN-JS09 GP20GH+N,.069+N GX5CrNiMo9--2,.08 2002 Bonnet GP20GH+N,.069+N GX5CrNiMo9--2,.08 2003 x Stem- / Bellows unit X20Cr3+QT,.02+QT / X6CrNiTi8-0,.5 X6CrNiMoTi7-2-2,.57 200 Giude bushing X20Cr3+QT,.02+QT (hardened) X6CrNiMoTi7-2-2,.57 (hardened) 2005 Giude bushing X20Cr3+QT,.02+QT (hardened) X6CrNiMoTi7-2-2,.57 (hardened) 2006 x Gasket Pure graphite (CrNi laminated with graphite) 2007 Stud 25CrMo,.728 A - 70 2008 Hexagon nuts C35E,.8 A 200 Set: refer to Pos. 20 Packing ring Pure graphite 202 Washer X5CrNi8-0,.30 207 Screw joint X8CrNiS8-9,.305 206 Set: refer to Pos. 200 Bush PTFE (strengthened (only for DN5-50)) 208 Compression spring X0CrNi8-8,.30 202 V-ring unit PTFE / Graphite 202 Screw joint X8CrNiS8-9,.305 2025 Scraper PTFE 2026 Gasket X6CrNiMoTi7-2-2,.57 Stem sealings Fig. 9 20 x Packing rings set Set of: Pos. 200, 202, 207 200 x V-ring unit set Set of: Pos. 202, 206, 208, 202, 202, 2025, 2026 Spare parts Edition 05/7 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com!
ARI-STEVI 8 / 9 (DN5-00) Sizing myvalve - Your Valve Sizing-Program. myvalve is a powerful software tool that not only helps you size your system components; it also gives you instant access to all other data about the selected product, such as order information, spare parts drawings, operating instructions, data sheets, etc., whenever you need it. Contents: Media: Module ARI-control valves STEVI-calculation - Sizing (calculation of flow quantity Kv, volume flow Q, pressure drop Δp, sound level and selecting the valve.) Integrated media-databank (more than 60 media) with conditions: - Vapours / gases - Steam (saturated and superheated) - Liquids Special features: System Requirements: - Project administration of the calculation and product data incl. spare part drawings concerning to project and tag number. - Direct output or calculation and product data in PDF format. - Product data could be taken for a direct order. - SI- and ANSI-units with direct conversion to another datank. - Settings with over pressure or absolute pressure. - All ARI valves are integrated in a databank. - Direct access concerning to the product on data sheets, operating instructions, pressure-temperature-diagram and spare part drawings - Operation in company networks possible (no complex installations on individually PC s necessary). - Extensive catalogue extending over several product groups. Windows operating systems, Linux, etc. Technology for the Future. G E R M A N Q U A L I T Y V A L V E S ARI-Armaturen Albert Richter GmbH & Co. KG, D-33750 Schloß Holte-Stukenbrock, Tel. +9 52 07 / 99-0, Telefax +9 52 07 / 99-58 or 59 Internet: http://www.ari-armaturen.com E-mail: info.vertrieb@ari-armaturen.com 2 Edition 05/7 - Data subject to alteration - Regularly updated data on www.ari-armaturen.com!