Butterfly valve triple offset - ZETRIX 018 ANSI | ARI
Butterfly valve triple offset - ZETRIX 018 ANSI | ARI

Butterfly valve triple offset - ZETRIX 018 ANSI | ARI

The ARI-ZETRIX® ANSI series comprises high-performance, triple-offset process valves designed for demanding industrial applications requiring superior sealing, durability, and precise flow control. These valves are available in double-flanged, fully-lugged, and butt-weld end configurations, ensuring flexibility across different systems.

Standard (Options)
  • ANSI
Connection (Options)
  • Flanged (Lug)
Material (Options)
  • SA216WCB
  • SA351CF8M
Pressure Rating (Options)
  • 150 lbs
  • 300 lbs
  • 600 lbs
Actuator (Options)
  • Pneumatic
  • Electric
  • Hydraulic

Datasheet and documents

Description

Triple-offset design for minimal wear and friction during operation
Metallic sealing with Stellited seat (Stellite® 21) for high-temperature and pressure applications
Vacuum-tight construction with optional blow-out protected stem (API 609 compliance)
Certified for ATEX, SIL, and Fire-Safe applications (ISO 10497 / API 607)
Wide range of actuation options: worm gear, electric, pneumatic, hydraulic



Technical Specifications

Valve Types & Configurations

  1. ARI-ZETRIX® ANSI Fig. 016 – Double-flanged process valve with metallic sealing
  2. ARI-ZETRIX® ANSI Fig. 018 – Fully-lugged process valve with metallic sealing
  3. ARI-ZETRIX® ANSI Fig. 019 – Butt-weld ended process valve with metallic sealing


Material Options

Component Material
Body SA216WCB (Cast Steel) / SA351CF8M (Stainless Steel)
Seat Stellited Seat (Stellite® 21)
Disc SA216WCB (Cast Steel) / SA351CF8M (Stainless Steel)
Stem SA276Gr.420 / SA564Gr.630 (Max. 300°C) / SA453Gr.660 (Max. 427°C)
Sealing Element Graphite / SA240Gr.31803 (Temperature range: -29°C to +427°C)


Pressure & Temperature Ratings

  • Nominal Pressure Ratings: ANSI 150 / ANSI 300
  • Maximum Differential Pressure: Equal to nominal pressure
  • Leakage Test Compliance: DIN EN 12266-1, Leakage Rate A
  • Fire-Safe Certification: ISO 10497 / API 607
  • ATEX Certification: Explosion-proof compliance

Tests and Certification

Firesafe
TA-Luft
ISO 15848-1
SIL
ATEX