VACUUM VALVES, BUTTERFLY

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Patented Butterfly Design Provides Superior Seal

Huntington’sbutterfly valve design provides a viable and economical alternative to the gate valve for many high vacuum applications. Unlike other manufacturer’s butterfly valves that use only a throttle plate to limit the conductance through the opening of the valve, Huntington’s design provides a vacuum tight O-ring seal. The new design allows the sealing plate to “float” within the valve orifice so that in closing it centers itself with even pressure around the O-ring seal. This design reduces scuffing or rolling of the O-ring. This page features MANUAL and PNEUMATICALLY ACTUATED valves.



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UHV Butterfly Valve, Manual (CF)

Valve Size Flange Size Figure “A” “B” “C” “D” Part Number
3/4″ 1-1/3″ Fig. 1 0.75 2.01 0.75 BF-075
1-1/2″ 2-3/4″ Fig. 1 0.75 1.34 3.71 1.25 BF-150
2″ 3-3/8″ Fig. 1 1.00 1.90 4.90 1.75 BF-200
2-1/2″ 4-1/2″ Fig. 2 0.68 2.31 6.84 4.90 BF-250
4″ 6″ Fig. 2 0.98 3.83 8.01 4.90 BF-400
Butterfly Valve Schematic
Sealing Material: Viton® O-Ring | Bakeout Temperature: 204° C, maximum | Operating Temperature: -29° to 100° C | Pressure Vacuum Range: Atmosphere to 1 x 10-9 Torr | Material Exposed to Vacuum: Stainless Steel & Viton®
 

HV Butterfly Valve, Manual, (ISO-KF)

Valve Size Flange Size “A” “B” “C” “D” Part Number
3/4″ KF 16 1.75 0.75 2.01 0.75 BF-075-SF
1″ KF 25 2.00 1.00 2.75 1.00 BF-100-SF
1-1/2″ KF 40 2.25 1.37 3.71 1.25 BF-150-SF
2″ KF 50 2.25 1.00 4.90 1.75 BF-200-SF
4″ ISO 100 4.19 0.98 8.01 2.00 BF-400-SF
Sealing Material: Viton® O-Ring | Bakeout Temperature: 204° C, maximum | Operating Temperature: -29° to 100° C | Pressure Vacuum Range: Atmosphere to 1 x 10-9 Torr | Material Exposed to Vacuum: Stainless Steel & Viton®
 

UHV Butterfly Valve, Pneumatically Actuated (CF)

Valve Size Flange Size Dim. “A” Dim. “B” Dim. “C” Dim. “D” Part Number Schematic
3/4″ 1-1/3″ 1.00 0.64 3.82 1.65 PBF-075
1-1/2″ 2-3/4″ 1.00 1.34 5.93 1.97 PBF-150
2″ 3-3/8″ 1.00 1.90 6.58 1.97 PBF-200
2-1/2″ 4-1/2″ 1.00 2.31 7.68 1.97 PBF-250
4″ 6″ 0.98 3.81 10.91 2.48 PBF-400
Sealing Material: Viton® O-Ring
Bakeout Temp: 200° C (actuator removed), 60° C at actuator
Operating Temp: -29 to 60° C
Pressure Vacuum Range: Atmosphere to 1 x 10-9 Torr
Pneumatic Actuator:
Port Size: 10-32 (M5 x .8), Air Required: 100 psi (6.9 bar) max.
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