BR 21a - pneumatic - DIN
Bottom drain ball valve
VALVE STYLE
Bottom drain ball valve
USAGE
- Low-pressure service
- On/off service
VERSION
DIN
MEDIUM TEMPERATURE
-10
to 200 °C /
14
to
392 °F
SUPPLY
Pneumatic
VALVE SIZE
DN 50
to
DN 150
PRESSURE RATING
PN 16
LINING
PTFE
Special features
- Consisting of PTFE-lined discharge ball valve and actuator
- Suitable for (highly) corrosive process media
- DIN ISO 5211 interface as standard
- Straight-through flow path
- 5 to 8 mm PTFE lining
- Single-piece ball shaft
- Blow-out-proof shaft
- Replaceable PTFE seals
- PTFE V-ring packing loaded by disk springs
- TA Luft
- Face-to-face dimensions according to DIN EN 558, Series 1 or 3
- Leakage requirements according to DIN EN 12266 or API 598
Accessories
- Lever
- Locking facility
- Air filters
Options
- Stem extension
- Stainless steel body
- Calibrated seals
- Linings of special compounds, such as conductive PTFE
- Heating jacket
- Double packing
- Grooved flanges according to DIN EN 1092
- FDA-compliant seals
- Balls and seals made of different materials
BR 21a - pneumatic - DIN can be combinated with the following actuations:
Special features:
- Single-acting and double-acting piston actuator
- Suitable for strict requirements in chemical plants
- Opening angle 90°
- Signal pressures up to 10 bar
- Torques from 5 to 11674 Nm
- Temperatures from –40 to +80 °C
- End positions adjustable within wide range (+5°/–15°)
- Diagonal or parallel square drive position
- Position indicator adjustable in steps of 45°
- Encapsulated spring assemblies
- Power transmission without clearance thanks to involute gearing
- Direction of rotation reversible without requiring additional parts
- Surface treatment tested by Kesternich sulfur dioxide corrosion test and salt spray test
- Centering ring milled into the housing
- Standardized attachment of valve accessories according to VDI/VDE 3845 or NAMUR
- Simple attachment according to DIN EN ISO 5211
- Blow-out-proof travel stop screws
- Fast stroking speeds as standard
Special features:
- Single-acting and double-acting piston actuator
- Suitable for strict requirements in chemical plants
- Opening angle 90°
- Signal pressures up to 10 bar
- Torques from 18 to 1702 Nm
- Temperatures from –40 to +80 °C
- End positions adjustable within wide range (+5°/–15°)
- Additional pneumatic input at the top shaft end
- Diagonal or parallel square drive position
- Position indicator adjustable in steps of 45°
- Encapsulated spring assemblies
- Backlash-free force transmission thanks to involute gearing
- Direction of rotation reversible without requiring additional parts
- Surface treatment tested by Kesternich sulfur dioxide corrosion test and salt spray test
- Centering ring milled into the housing
- Standardized attachment of valve accessories according to VDI/VDE 3845 / NAMUR and VDI/VDE 3847
- Simple attachment according to DIN EN ISO 5211
- Blow-out-proof travel stop screws
- Fast stroking speeds as standard
- Integrated Automation acc. to VDI/VDE 3847
Information
Support
EB 21a
Kugelablasshahn BR 21aDIN-Ausführung[DE]
Certificates
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