Butterfly Valve 4261

Butterfly Valves

AMOT, Chalwyn, and Roda Deaco offer a broad selection of butterfly air intake shutoff valves for use in diesel engine overspeed protection systems. The spring operated positive shutoff butterfly valves utilize both fail safe and energize to close actuators. The actuators are available in electric, pneumatic, hydraulic, and manual operation.

4261D

4261D Butterfly Valve (Electric, Pneumatic, Hydraulic & Manual Actuation)

Max. intake air temp:

Viton Seals
Buna N/Nitrile seals

149°C
121°C

300°F
200°F
Valve bore size ranges: 56 - 188 mm 2.2 - 7.4 inches
Pneumatic cylinder:

Min. actuating pressure:
Max. working pressure:

2 bar
14 bar

30 psi
200 psi
Electric solenoid operators:

12 VDC & 24 VDC
Max coil temp.

107W
175°C

 
350°F
  Rated for intermittent duty; 1 min on, 9 min off

See datasheet for complete specifications.

4262 SPEEDTRAP™ Air Intake Shutoff Valve

4262C Butterfly Valve (Electric, Pneumatic, Hydraulic, & Manual Actuation)

Max. intake air temp: Buna N/Nitrile seals 121°C 200°F
Valve bore size: 4" and 6" Valve sizes 
Pneumatic cylinder:

Min. actuation pressure:
Max. working pressure:

207 kPa
1380 kPa

30 psi
200 psi
Electric solenoid operators
(intermittent duty):

12 VDC type
24 VDC type

107 W
107 W

  

See datasheet for complete specifications.
4261M Air Intake Shutoff Valve

4261M Butterfly Valve (Electric, Pneumatic, Hydraulic & Manual Actuation)

Max. intake air temp: Nitrile seals (standard)   93°C    200°F
Valve bore size ranges: 61mm - 191 mm             2.4" - 7.5"
Pneumatic cylinder: Min. actuation pressure: 
Max. working pressure:  

30 psi
200 psi
Electric solenoid operators: 12VDC & 24VDC   96W

See datasheet for complete specifications.
SVX Safe Area Energized to Open Model

SVX Electric Actuated Butterfly Valve

Actuation methods: SVX Energize to Close Valve
SVX Energize to Run Valve
SVX Energize to Latch Open Valve w/ Manual Start/Stop Lever
Electric solenoids:

12 VDC

24 VDC

Pull: 46A

Pull: 25A

Hold: 1.1A

Hold: 0.5A
Valve body size: 3" (76mm) 5" (127mm) 8" (203mm)
Hose adapter size: 1½"-4" (38-102mm) 3½"-6" (89-152mm) 7"-8" (178-203mm)
HVX Valve

HVX Pressure to Latch Open Butterfly Valve with Manual Open / Stop Lever

Failsafe pressure
actuation:		 Open: Manual Start / Pressure Latches Open
Close: Pressure falls below 20 psi (1.4 bar)
Valve body size: 3" (76 mm) 5" (127 mm)
HAX hose
adaptors:		 ½"-4" (38-102 mm) 3½"-6" (89-152 mm):

See datasheet for complete specifications.
PVX Valve

PVX Pneumatic Rotary Spring Return Butterfly Valve

Actuation methods: PVX-300/500/800: Air Pressure to Open / Spring Return Close
PVX-301/501/801: Air Pressure to Close / Spring Return Open
Actuation pressure: Minimum
Maximum		 43.5 psi
116 psi		 3 bar
8 bar
Valve body size: 3" (76 mm) 5" (127 mm) 8" (203 mm)
Hose adapter size: 1½"-4"
(38-102 mm)		 3½"-6"
(89-152 mm)		 7"-8"
(178-203 mm)

See datasheet for complete specifications
MPX Valve

MPX Pressure to Close Butterfly Valve with Manual Close

Pressure to close:  Min to Max 29 psi to 145 psi 2 bar to 10 bar
Actuation options: Microswitch Position Indication (3” and 5” only)
Local Manual Stop Button
Remote Pushbutton Cable Close (1m to 3m available)
Remote Pull “T” Handle Cable Close (1m to 3m available)
Valve body size: 3” (76 mm) 5” (127 mm) 8” (203 mm)
Hose adapter size: 1½”–4”
(38-102 mm)		 3½”-6”
(89-152 mm)		 7”-8”
(178-203 mm)

See datasheet for complete specifications
MVX model with remote stop control

MVX Manually Operated Butterfly Valve

Actuation options: Local Manual Stop Button (push or pull)
Standard Pushbutton Cable Close (1m to 3m cable)
Compact Pushbutton Cable Close (1m to 3m cable)
Pull "T" Handle Cable Close (1m to 3m cable)
Dual Pull "T" Handle Cable Close (1m to 3m cable sets)
Valve body size: 3" (76mm) 5" (127mm) 8" (203mm)
Hose adapter size: 1½"-4"
(38-102mm)		 3½"-6"
(89-152mm)		 7"-8"
(178-203mm)

See datasheet for complete specifications