Butterfly valve double offset - ZEDOX 120 | ARI | Philippopoulos s.a.
Butterfly valve double offset - ZEDOX 120 | ARI | Philippopoulos s.a.

Butterfly valve double offset - ZEDOX 120 | ARI

ARI-ZEDOX® 120 Double Eccentric Butterfly Valve

The ARI-ZEDOX® 120 is a high-performance wafer-type double eccentric butterfly valve designed for industrial isolation in liquid, gas, and steam lines where compact installation and controlled wear at the seat/disk interface are required. The 90° movement and eccentricity remove the disk from the seat during opening, reducing friction and operating torque.

Technical Specifications

  • Type: Fig. 120, wafer high-performance valve
  • DN: 80–800, depending on pressure and sealing type
  • PN: 10 / 16 / 25 / 40
  • Body: 1.0619+QT cast steel or 1.4408 stainless steel
  • Disk: 1.4408, optionally 1.4460
  • Shaft / pivot: 1.4021+QT or 1.4542 in stainless versions
  • Face-to-face: ISO 5752 / EN 558-1, series 20, 25, or 16
  • Flanges: EN, compatible with ANSI 150 flange

Sealing and Temperature Ranges

Available with two primary seat options:

  • PTFE+C: -40 to +180 °C, leakage rate A per EN 12266-1. Suitable for applications requiring tight shut-off and chemical resistance.
  • Stainless steel seat: -40 to +260 °C, leakage rate B per EN 12266-1. Option for higher temperatures, steam, and demanding thermal cycles.

Pressure Limits

Differential pressure depends on DN, pressure direction, and seat. For PTFE+C, 16 bar is standard and 25 bar is optional in PN25 versions, while the metallic version PN40 reaches up to 40 bar, with restrictions based on diameter and temperature. Final selection should be verified with pressure-temperature rating and operating torque.

Actuation

Available versions include manual lever, gearbox, electric actuator, pneumatic actuator, or hydraulic actuator upon request. Actuator sizing considers Δp, temperature, seat, operation frequency, and fail-close or fail-open requirements.

Typical Applications

Used in steam distribution, thermal oils, process water, condensates, combustion gases, auxiliary energy networks, and industrial isolation lines. For flow regulation, control of Kvs, opening angle, cavitation, noise, and allowable torque is required.

Standard (Options)
  • DIN
Connection (Options)
  • Flanged (Wafer)
Material (Options)
  • 1.0619+N
  • 1.4408
Pressure Rating (Options)
  • PN 10
  • PN 25
  • PN 40
Actuator (Options)
  • Handwheel
  • Gearbox
  • Pneumatic
  • Electric
  • Hydraulic

Datasheet and documents

Description

✅ Double-offset design for reduced wear and extended lifespan
✅ Metallic or PTFE sealing for different operational conditions
✅ Bi-directional tightness up to 25 bar differential pressure
✅ Replaceable seat ring for easy maintenance
✅ Fire-safe design in accordance with ISO 10497 / BS6755
✅ Multiple actuation options: lever, worm gear, electric, pneumatic, and hydraulic


Technical Specifications

Valve Types & Configurations

  1. ARI-ZEDOX® Wafer Type (Short, Medium, and Long Pattern)
    • Available in cast steel and stainless steel
    • Compatible with ANSI 150 flange connections
  2. ARI-ZEDOX® Butt-Weld Ended High-Performance Valve
  3. ARI-ZEDOX® Double-Flanged High-Performance Valve


Material Options

Component Material
Body GP240GH+N (1.0619+N), Stainless Steel (1.4408)
Disc Stainless Steel (1.4460)
Pivot Stainless Steel (1.4460 for DN80-DN300, 1.4418 for DN350-DN800)
Stem Stainless Steel (1.4460 for DN80-DN300, 1.4418 for DN350-DN800)
Seat Ring PTFE+C (TS) or Stainless Steel (CS)
Sealing Material PTFE+C (-40°C to 180°C) / Stainless Steel (-40°C to 260°C)


Pressure & Temperature Ratings

  • Nominal Pressure Ratings: PN10 – PN40
  • Face-to-Face Dimensions: Compliant with ISO 5752 / EN 558-1
  • Leakage Testing: DIN EN 12266-1
    • PTFE+C Sealing → Leakage Rate A
    • Stainless Steel Sealing → Leakage Rate B (standard) / A (optional)
  • Fire Safety Compliance: ISO 10497 / BS6755

Tests and Certification

DGRL 2014/68/EU (PED Pressure Equipment Directive)
Firesafe
ATEX

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