The
Bray Series 20 butterfly valve is a centric, soft-seated industrial valve for use in piping systems. They are suitable for liquids, gases and steam in chemical, energy and water technology applications. The butterfly valves are characterized by their compact design, high tightness and simple automation.
Special features
- Centric design for optimum flow conditions
- Cast iron body with corrosion-resistant nylon 11 coating
- Flap disk/shaft as one-piece stainless steel design for high stability
- Temperature range: -10 °C to +130 °C
- Nominal pressures: PN10 / PN16
- Wafer version for centered installation between flanges (product type 20)
- 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 wear and reduced maintenance
- ISO 5211 mount for direct mounting of electric and pneumatic actuators
Advantages
- High operational reliability thanks to corrosion-resistant nylon 11 coating and robust stainless steel design of the valve disk
- Very good flow performance thanks to spherically shaped sealing contour and centric mechanics
- Low maintenance due to minimal wetted parts and durable bearing bush
- Direct automation capability thanks to ISO 5211 interface (no adapters required)
- Standard-compliant dimensions facilitate installation, replacement and retrofitting in existing systems
- High reliability 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 21)
- 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 systems
- Chemical and petrochemical applications (non-aggressive media)
- Energy and power plant technology (cooling, recooling and secondary circuits)
- SKID systems, modular system packages and container units
- General industrial processes for liquid and gaseous media
Recommendation
In combination with
AirTorque actuators and accessories for maximum efficiency and reliability.
