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Combustion 911
Supplying and Serving the Combustion Industry
an Olsträd Engineering Company

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Butterfly Valve BVHButterfly Valve for Hot Air and Flue Gas BVHS with Safety Closing Function

  • Safety-closing function in event of a main voltage failure
  • For gas, air, hot air and flue gas
  • Low leakage rate and pressure loss
  • High control accuracy
  • Can be mounted directly onto the actuators IC 20 or IC 40
  • Suitable for intermittent operation
  • Low-maintenance operation

Description

The butterfly valve BVHS with safety closing function is used with the actuator IC 40 in systems where it is important that in the event of a main voltage failure, the valve closes preventing air streaming into the furnace without being under control.

The butterfly valves BVG, BVH, BVHM and BVHS adjust volumes of gas, cold and hot air, and flue gas on various appliances and flue gas lines. They are designed for control ratios up to 1:10, and with the mounted actuator IC 20 or IC 40 they are suitable for regulating flow rates for modulating or stage-controlled combustion processes.

Ordering Information

Model and Description Model Bore Diameter Max inlet pressure Connection Fitting Stop Bar? Price Cart
BVHS 40W01A
Bore diameter: 1½″; Max inlet pressure: 150 mbar (2.18 psig); Connection fitting: between two ANSI flanges (1½″); Stop bar: Yes
BVHS 40W01A 1½″ 150 mbar (2.18 psig) between two ANSI flanges (1½″) Yes
BVHS 50W01A
Bore diameter: 2″; Max inlet pressure: 150 mbar (2.18 psig); Connection fitting: between two ANSI flanges (2″); Stop bar: Yes
BVHS 50W01A 2″ 150 mbar (2.18 psig) between two ANSI flanges (2″) Yes
BVHS 65W01A
Bore diameter: 2½″; Max inlet pressure: 150 mbar (2.18 psig); Connection fitting: between two ANSI flanges (2½″); Stop bar: Yes
BVHS 65W01A 2½″ 150 mbar (2.18 psig) between two ANSI flanges (2½″) Yes
BVHS 80W01A
Bore diameter: 3″; Max inlet pressure: 150 mbar (2.18 psig); Connection fitting: between two ANSI flanges (3″); Stop bar: Yes
BVHS 80W01A 3″ 150 mbar (2.18 psig) between two ANSI flanges (3″) Yes
BVHS 100W01A
Bore diameter: 4″; Max inlet pressure: 150 mbar (2.18 psig); Connection fitting: between two ANSI flanges (4″); Stop bar: Yes
BVHS 100W01A 4″ 150 mbar (2.18 psig) between two ANSI flanges (4″) Yes

Accessories

Model and Description Price Cart
BVH ACC 01
Heat deflectors /B
IC-20/40 ACC 01
Fastening set IC-BVG/BVA/BVH/LFC /B

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1½″ bore dia.
2″ bore dia.
2½″ bore dia.
3″ bore dia.
4″ bore dia.
Accessories
BVHS 40W01A
Price: Contact Us
Not available Online
Bore diameter: 1½″; Max inlet pressure: 150 mbar (2.18 psig); Connection fitting: between two ANSI flanges (1½″); Stop bar: Yes
BVHS 50W01A
Price: Contact Us
Not available Online
Bore diameter: 2″; Max inlet pressure: 150 mbar (2.18 psig); Connection fitting: between two ANSI flanges (2″); Stop bar: Yes
BVHS 65W01A
Price: Contact Us
Not available Online
Bore diameter: 2½″; Max inlet pressure: 150 mbar (2.18 psig); Connection fitting: between two ANSI flanges (2½″); Stop bar: Yes
BVHS 80W01A
Price: Contact Us
Not available Online
Bore diameter: 3″; Max inlet pressure: 150 mbar (2.18 psig); Connection fitting: between two ANSI flanges (3″); Stop bar: Yes
BVHS 100W01A
Price: Contact Us
Not available Online
Bore diameter: 4″; Max inlet pressure: 150 mbar (2.18 psig); Connection fitting: between two ANSI flanges (4″); Stop bar: Yes
BVH ACC 01
Price:
Heat deflectors /B

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