ARI Valve Corporation
Straightway Control Valve
DN 15 - 100
  • Electric multi-turn actuator capable of high closing pressures
  • Protection Class IP 67
  • 2 Torque Switches
  • 2 Limit Switches
  • Emergency manual override handwheel
  • Overheating protection for motor as standard
  • Additional devices available, e.g. potentiometer
  • Explosion proof execution available
Unit of Measure

Model No.

N/A 440

Dia. Nominal

N/A 40 mm

Pressure Class

N/A PN 16

Body Material

N/A GG-25 GGG-40.3 1.0619+N 1.4408


N/A Flanged




N/A Straightway

Actuator Description

N/A Exit Connection. Form A TR 26 x 5

Seat Dia.

N/A 41 mm

Standard Kvs Value

N/A 25 m3/h

Reduced Kvs Value

N/A 16 m3/h


N/A 20 mm

Height [H]

N/A 589 mm


N/A 35.5 kg

Standard Valve Length- L

N/A 200 mm

Flange Dimension- Ø D

N/A 150 mm

Flange Dimension- Ø K

N/A 110 mm

Flange Dimension- n x Ø d1

N/A 4 x 18 mm

Actuator Motor

N/A 400V 50 Hz 3 ph.


N/A Spindle Sealing

Spindle Sealing

N/A PTFE-V-ring unit -10°C up to +220°C Graphite-packing -10°C up to +450°C Stainless steel bellow seal with safety stuffing box -60°C up to +450°C

Flow Characteristic

N/A Linear Equal percentage

Positioning Ratio

N/A 50:1 by design with Parabolic Plug

Sealing: Seat/Plug- Leakage Class

N/A Metal / Metal- Leakage class IV acc. to DIN IEC 60534-4 Metal / Soft substance- Leakage class VI acc. to DIN IEC 60534-4


  • Compact design
  • Precision guided spindle
  • Roll hardened spindle
  • Plug sealing to conical edge of seat
  • Positioning ratio 50:1
  • Spring- loaded PTFE-V-ring packing unit
  • Double wall bellow seal
  • Mechanical position indicator
  • Free of asbestos


  • Standard:
    Parabolic plug, metal sealed

  • Special design:Parabolic plug, soft sealed (max. 200°C)
    Parabolic pressure balanced plug, metal sealed,
    Material of piston seal:
    PTFE with stainless steel spring (max. 200°C)


  • Cooling water
  • Cooling brine
  • Warm water
  • Hot water
  • Steam
  • Gas
    -other applications on request
  • C∈-marking for applications acc. to Pressure Equipment Directive (identification obligation from ≥ DN32)