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ARI Control Valves

 

‧Compact design
‧Precision guide stem
‧Burnished stem
‧Tapered seat ring
‧Replaceable seat and plug
‧Screwed seat ring
‧Cv- / Kvs-valuc reducible up to 6 times
‧Rangeability
50:1(1”-6” /DN25-150)
30:1(8” / DN200)
‧Post guide plug
‧Spring loaded PTFE-V ring packing unit
‧Two-ply bellows seal as standard
‧Travel indicator

 
 

Product Information

ARI-STEVI 440 / 441
Control valve in straightway form with electric actuator ARI-PREMIO
Figure Nominal pressure Material Nominal diameter
12.440 / 12.441 PN16 EN-JL1040 DN15-150
22.440 / 22.441
PN16 EN-JS1049 DN15-150
22.440 / 23.441 PN25 EN-JS1049 DN15-150
34.440 / 34.441 PN25 1.0619+N DN15-150
35.440 / 35.441 PN40 1.0619+N DN15-150
55.440 / 55.441 PN40 1.4408 DN15-150
Other materials and versions on request
Stem sealing

Fig. 440:
‧PTFE-V-ring unit-10˚C up to +220˚C
‧PTFE-packing-10˚C up to +250˚C
‧Pure graphite-packing-10˚C up to +450˚C
Fig. 441:
‧Stainless steel bellows seal with safety stuffing box -60˚C up to +450˚C450˚C

Plug design
standard:‧Parabolic plug, metal seat
optional:
‧Parabolic plug with PTFE soft seat(max.200˚C)
‧V-port plug, metal seat
‧Paraboloc pressure balanced plug, metal seat,Material of pision seal:
PTFE with stainless steel spring(max.200˚C)
Guiding
‧Parabolic plug: Stem guiding
‧V-port plug:Stem and port guiding
Flow characteristic
Equal percentage or linear
(from Kvs 100 modified equal percentage)
Rangeability
‧50:1 parabolic plug
‧30:1 on V-port plug
Shut off class(seat/ plug leakage classes)
‧Metal seat-Leakage class IV acc. to DIN EN 1349 or IEC 60534-4
‧Soft seat Leakage-class VI acc. to DIN EN 1349 or IEC 60534-4
Closing pressure refer to page 4.
Technical for actuator to data sheet.



ARI-STEVI 450 / 451
Control valve in 3-way-form with electric actuator ARI-PREMIO (3-way mixing valve / 3-way diverting valve)
Figure Nominal pressure Material Nominal diameter
12.450 / 12.451 PN16 EN-JL1040 DN15-100
22.450 / 22.451
PN16 EN-JS1049 DN15-150
22.450 / 23.451 PN25 EN-JS1049 DN15-150
34.450 / 34.451 PN25 1.0619+N DN15-150
35.450 / 35.451 PN40 1.0619+N DN15-150
55.450 / 55.451 PN40 1.4408 DN15-150
(55.451 to DN100)
Other materials and versions on request
Construction
‧3-way mixing valve(DN15-150)
‧3-way diverting valve(DN40-150)
(Operating mode refer to page 24)
Stem sealing
Fig. 450:
‧PTFE-V-ring unit-10˚C up to +220˚C
‧PTFE-packing-10˚C up to +250˚C
‧Pure graphite-packing-10˚C up to +450˚C
Fig. 451:
‧Stainless steel bellows seal with safety stuffing box -60˚C up to +450˚C
Plug design
standard:
Parabolic plug, metal seat/V-port plug, metal seat
Guiding
Stem and port guiding
Flow characteristic
linear
Rangeability
30:1
Shut off class(seat/ plug leakage classes)
Metal seat-Leakage class IV acc. to DIN EN 1349 or IEC 60534-4
Closing pressure refer to page 4.
Technical for actuator to data sheet.



ARI-STEVI  470/ 471-ANSI
Control valve in straightway form with electric actuator ARI-PREMIO
Figure Nominal pressure Material Nominal diameter
35.470...90 /35.471...90 ANSI 300

SA216WCB

1“ - 8“ / DN 25-200
Other materials and versions on request
Stem sealing
Fig. 470:
‧PTFE-V-ring unit(to 6"/DN150)+14˚F to +428˚F/-10˚C to +220˚C
‧PTFE-packing +14˚F up to +428˚F/-10˚C up to +250˚C
‧Pure graphite-packing +14˚F up to +842˚F/-10˚C up to +450˚C
Fig. 471:
‧Stainless steel bellows seal (for retricted pressure range)
-76˚F up to +842˚F/-60˚C up to +450˚C
Plug design
standard:
‧Parabolic plug, metal seat(1”-6”/DN25-150)
‧V-port plug, metal seat(8”/DN200)
optional:
‧Parabolic plug with PTFE soft seat(max.392˚F/200˚C)(1”-6”/DN25-150)
‧V-port plug, metal seat(from seat 2,56 in/ 65mm )
‧Paraboloc pressure balanced plug(or perforated plug), metal seat,Material of
pision seal:
PTFE with stainless steel spring(max. 392˚F/200˚C)
Guiding
‧Parabolic plug: Post guiding
‧Perforated/V-port plug:post and port guiding
Flow characteristic
Equal percentage or linear
(from Kvs 100 modified equal percentage, Miniature-Kvs-values ≤ 0,63 only percentage)
Rangeability
‧50:1 parabolic plug
‧30:1 on Perforated plug/V-port plug
Shut off class(seat/ plug leakage classes)
‧Metal seat-Leakage class IV acc. to ANSI/FCI 70-2
‧Soft seat-Leakage class VI acc. to ANSI/FCI 70-2(from Cv 1,2/Kvs 1,0)
Closing pressure refer to page 4.
Technical for actuator to data sheet.