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PFA Lined Butterfly Valve

Acris® Series 24/25

Size Range
NPS 2 to 24 | DN 50 to 600
Temperature Range
-20°F to 320°F | -29°C to 160°C
Maximum Allowable Operating Pressure
NPS 2 to 6: Up to 232 psi | DN 50 to 150: Up to 16 bar
NPS 8 to 24: Up to 150 psi | DN 200 to 600: Up to 10 bar
Body Style
2-piece | Wafer, Lug

Specifications

PFA Lined Butterfly Valve - Acris® Series 24/25

Size Range
NPS 2 to 24 | DN 50 to 600
Temperature Range
-20°F to 320°F | -29°C to 160°C
Maximum Allowable Operating Pressure
NPS 2 to 6: Up to 232 psi | DN 50 to 150: Up to 16 bar
NPS 8 to 24: Up to 150 psi | DN 200 to 600: Up to 10 bar
Shutoff Rating
Zero Leakage
Body Style
2-piece | Wafer, Lug
Certifications
SIL 3, ISO 15848-1
Body Materials
Ductile iron
Liner Materials
PFA
Disc Stem Materials
NPS 2 to 12 (DN 50 to 300): 17-4 Stainless Steel over-molded with PFA
NPS 14 to 24 (DN 350 to 600): 17-4 Stainless Steel stem/high strength steel disc over-molded with PFA
Seat Energizer Material
Silicone | Viton™
Design Standard
MSS SP-155 | MSS SP-67
Testing Standard
API 598 | ISO 5208
Face to Face
API 609 | ISO 5752 | EN 558 Series 20
Flange Drilling
ASME B16.5 CL150 | ASME B16.1 CL125 | PN10, 16 | JIS 10K
Media
Brine, Bromine, Caustic, Chlorine Gas (Wet/Dry), Hydrochloric Acid, Organic Solvents, Phosphatic Fertilizer, Strong Oxidizing Agents, Sulfuric Acid, Ultrapure Water, Viscous Liquids
applications
Chemical & Petrochemical, Chlor-Alkali, Ion Exchange Resin Systems, Make-up Water Reverse Osmosis Systems, Semiconductor Manufacturing, Ultrafiltration, Ultrapure Piping Systems, UV Light Systems, Vacuum Service, Wastewater Treatment Systems

Features & Benefits

Fully PFA lined butterfly valves engineered for bidirectional bubble-tight shutoff in demanding corrosive, chemical, semiconductor, and ultrapure water applications.

  • A. Fully PFA lined disc and body

    Proprietary compound provides unsurpassed resistance to corrosion, permeation, and microbial contamination for maximum purity and reliability with minimum maintenance.

  • B. Durable, spherically molded PFA liner and matching disc

    Interface forms a tight bidirectional seal.

  • C. Full width 360° seat energizer

    Ensures uniform sealing.

  • D. Live-loaded, stem sealing system

    Self-adjusts to eliminate leak paths and reduce fugitive emissions for long-term, maintenance-free operation. (Standard sealing system meets ISO 15848-1 low fugitive emission requirements.)

  • E. Extended PFA shaft over-molding

    Enhances stem sealing, eliminates leak paths, and shields the stem from corrosive media.

  • F. PFA disc over-molding

    PFA resin is mechanically bonded to the base metal to enable vacuum capability.

  • G. Streamlined disc

    Engineered for maximum flow.

  • H. High-strength, one-piece 17-4 stainless steel disc and stem

    Standard for improved reliability.

  • I. Energized flange seal

    Maintains proper sealing between valve and flange.

  • J. Mechanically retained seat energizer

    Wide elastomer seat energizer rests in a machined body groove to enable end-of-line service at full working pressure.

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