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SKU AK-22 Category

Butterfly valve type 22 Wafer

Robust versions with extended neck construction

data sheet

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Armaturenfabrik Armatur Absperrklappe Bray Typ 22 PTFE ausgekleidet, zentrisch, weichdichtend, Sphäroguss, Wafer, Zwischenflansch
Armaturenfabrik Armatur butterfly valve Bray type 22 23 PTFE lined automated

Product information

The Bray butterfly valve type 22 in wafer design is a centric, soft-seated industrial valve for demanding applications in chemical, energy and water technology. Its robust cast iron body with nylon 11 coating, the one-piece stainless steel disc/shaft unit and the elastomer sealing system ensure high operational reliability, excellent flow conditions and a long service life. Thanks to the ISO 5211 interface, the valve is ideal for automated plants and modular process systems.

Special features

  • Centric design for optimum flow conditions
  • Cast iron body with corrosion-resistant nylon 11 coating
  • Valve disk/shaft as one-piece stainless steel version
  • Temperature range: -10 °C to +130 °C
  • Nominal pressures: PN10 / PN16
  • Wafer version for centered installation between flanges
  • Flanged connection according to DIN EN 1092-1
  • Face-to-face length according to ISO 5752 / EN 558 (short pattern)
  • Only two wetted parts → Low maintenance requirements
  • ISO-5211 mounting for electric and pneumatic actuators

Advantages

  • High operational reliability thanks to durable coating and robust stainless steel disc
  • Outstanding flow performance due to spherically shaped sealing contour
  • Low maintenance thanks to minimal design and low-wear components
  • Direct automation via ISO 5211 interface
  • Standardized dimensions facilitate installation and replacement
  • Reliable function for water, steam, neutral process media and industrial gases

Variants

  • Nominal sizes: DN 25-DN 300
  • Gaskets: EPDM, NBR, other materials on request
  • Version:
    Wafer version (product), optional lug version (type 23)
  • Automation options:
    Pneumatic actuators (single/double-acting)
    Electric actuators (24 V / 230 V)
    Limit switch boxes, position indicators, solenoid valves
  • Optional:
    extended corrosion protection, special coatings

Areas of application

  • Water and wastewater technology (drinking water, process water)
  • Heating and cooling circuits in industrial plants
  • Chemical and petrochemical applications (non-aggressive media)
  • Energy and power plant technology (cooling and secondary circuits)
  • SKID systems and modular process plants
  • General industrial processes with liquid and gaseous media

Recommendation

In combination with AirTorque actuators and accessories for maximum efficiency and reliability.

Feature Specification
Type Bray Series 22
Nominal size (DN) DN 50 – DN 300
Nominal pressure (PN) PN 16
Housing material Cast iron with nylon 11 coating for corrosion protection
Disc material Stainless steel (disk and shaft in one piece)
Seat/gasket Elastomer (EPDM, NBR, others on request)
Temperature range -129 °C to +204 °C
Standards EN 593, ISO 5752, ISO 5211
Special features Maintenance-free, soft-sealing, leakage rate A

Valve body version

  • Wafer version
  • Mounting holes for easy installation

Modifications for butterfly valves

Armaturenfabrik Valve Butterfly valve BOAX-S from KSB with handlever

Manually operated butterfly valves

The classic solution for simple applications – robust, cost-effective and without an external power source. Ideal for manual operation with low switching frequency.
Advantages:
  • Simple operation
  • Low maintenance and inexpensive
Disadvantages:
  • Cannot be automated
  • Greater effort with frequent switching
Recommended accessories:
Spindle extensions, reduction gears, suitable gaskets
Learn more
Armaturenfabrik Valve BOAX-S butterfly valve from KSB automated with pneumatic quarter-turn actuator

Pneumatic butterfly valves

Perfect for fast and automated processes – pneumatic actuators ensure short switching times and high reliability.
Advantages:
  • Very fast switching times
  • Ideal for automation
Disadvantages:
  • Compressed air supply required
  • Higher investment costs
Recommended accessories:
Pneumatic quarter-turn actuators, solenoid valves, limit switch boxes
Learn more
Armaturenfabrik Valve Butterfly valve BOAX-S from KSB automated with electric quarter-turn actuator

Electric butterfly valves

The solution for precise control and simple integration into digital systems – perfect for modern systems without compressed air.
Advantages:
  • Precise control
  • Simple integration into control systems
Disadvantages:
  • Longer switching times
  • Sensitive to moisture
Recommended accessories:
Electric actuators, limit switches, ATEX/SIL options
Learn more

FAQs

Which gaskets are available?
EPDM, NBR, others on request.
Yes, with electric or pneumatic actuators.
EN 593, ISO 5211.

Insulation – In combination with fittings and containers

Our insulations are more than just accessories – they perfectly complement fittings and systems and increase efficiency, safety and adaptability.
Order and configure now.

We offer:

  • Custom-made insulating pads to fit your fitting
  • Heating jacket integration – reliable even under extreme conditions
  • Insulation jackets and pipe insulation for SKID assemblies – ideal for modular systems and complex systems
  • Special solutions for high temperatures – for power plants, the chemical and process industries
Insulations
Heating jackets for fittings
Armaturenfabrik Valve insulation High-temperature pipe insulation with IFS-Plast25 insulation pads and IFS-MW20 mineral wool for SKID systems, process plants

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Benefit from our expert knowledge in process monitoring. Our experienced team will provide you with sound advice on selecting the optimum products for your specific requirements. Arrange your personal consultation now!
Armaturenfabrik Industriefabrik Schneider Consulting for industrial valves, tank construction, contact the company

Contact person
Emily John

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