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Combustion 911
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Butterfly Valve VFHButterfly Valve VFH

  • Available in 1½" up to 4" for fitting between two ANSI flanges, and in 5" up to 8" for fitting between two EN 1092 PN16 flanges
  • Max. temperature 482°F (842°F with Heat Shields)
  • For use with SR, SL, and ST solenoid actuators
  • For use with MZ servomotors
  • Manual handle available

Description

Elektrogas VFH butterfly valves are designed for regulation and control of gas and air flow in combustion processes. Valves can be operated manually using a lever (to set up the high-fire rate of the burner), or automatically using a servomotor (modulating or staged control) or a solenoid actuator (two-stage control).

Please note: These butterfly valves were designed with the ISO bolt circle in mind, which means they have an OD which is larger than the ANSI bolt circle in the 1-1/2” to 4” sizes, and an OD which is smaller than the ANSI bolt circle in the 5” to 8” sizes. Therefore, valves in the 1-1/2” to 4” range are modified to create grooves for the bolts in the ANSI circle. Larger valves should be used with spacers or ISO flanges.

Ordering Information

Model and Description Model Nominal Size Connection Max Temp Pe Max Price Cart
VFH4
Nominal Size: 1½″; ANSI connection; 482°F (842°F with heat shields) Max temperature; 2 PSI Max Pe.
VFH4 1½″ ANSI 482°F (842°F*) 2 PSI
VFH6
Nominal Size: 2″; ANSI connection; 482°F (842°F with heat shields) Max temperature; 2 PSI Max Pe.
VFH6 2″ ANSI 482°F (842°F*) 2 PSI
VFH7
Nominal Size: 2½″; ANSI connection; 482°F (842°F with heat shields) Max temperature; 2 PSI Max Pe.
VFH7 2½″ ANSI 482°F (842°F*) 2 PSI
VFH8
Nominal Size: 3″; ANSI connection; 482°F (842°F with heat shields) Max temperature; 2 PSI Max Pe.
VFH8 3″ ANSI 482°F (842°F*) 2 PSI
VFH9
Nominal Size: 4″; ANSI connection; 482°F (842°F with heat shields) Max temperature; 2 PSI Max Pe.
VFH9 4″ ANSI 482°F (842°F*) 2 PSI
VFH93
Nominal Size: 5″; ISO connection; 482°F (842°F with heat shields) Max temperature; 2 PSI Max Pe.
VFH93 5″ ISO 482°F (842°F*) 2 PSI
VFH95
Nominal Size: 6″; ISO connection; 482°F (842°F with heat shields) Max temperature; 2 PSI Max Pe.
VFH95 6″ ISO 482°F (842°F*) 2 PSI
VFH98
Nominal Size: 8″; ISO connection; 482°F (842°F with heat shields) Max temperature; 2 PSI Max Pe.
VFH98 8″ ISO 482°F (842°F*) 2 PSI

Accessories

Model and Description Price Cart
Set MH
Mount MZ to VFH Butterfly Valve
Set LH
VFH Manual Lever
Set D
VFH Heat Shields

Latest Blog Post

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