Bettis GVO Series Pneumatic Linear Valve Operators


• External tie bars allow contained release of energy in the event of over-pressure and allow ease of inspection and servicing
• Spring rod nut is locked to prevent unauthorized disassembly of the spring cartridge
• Adjustable travel stop for the rod-retract position, piston bottoms out for the rod-extend position. Specific travel applications available, consult factory
• 70 durometer Nitrile seals, other seal materials available upon request
• Piston wear band, drive rod bushing and polyurethane rod wiper are standard for all models
• Pneumatic cylinder material is hard anodized aluminum, 2vv thru 8vv, and fiber composite for sizes 10vv and above. Chrome plated carbon steel is available as an option.
• Cylinder plate and endcap material is carbon steel; optional aluminum for 2vv thru 8vv
• Cylinder plate incorporates a pneumatic distribution groove to maximize break-out thrust
• Drive rod material is carbon steel chrome plated, with option for stainless steel
• Consult factory for custom thrust, travel and pressure requirements
• Factory finish is Bettis Orange gloss alkyd enamel to RAL 2002. Other colors/coatings available upon request
• Removable mounting pedestal allows field adaption to the valve
• Swivel stem connector for ease of installation and stroke adjustment


• Pressure rating of 150 psig MAWP (custom pressure ratings available)
• Static pressure test to 225 psig
• Standard operating temperature range -23° C to +74° C (-10° F to +165° F)
• Low temperature option available, -40° C to + 65° C (-40° F to +150° F) for 2vv to 14vv type DA
• XLT -46° C to + 65° C (-50° F to +150° F) for 16vv to 24vv type DA and all SR/FS models
• High temperature option available, -17° C to + 204° C (+1° F to +400° F)
• NPTF cylinder porting, with side porting on the cylinder plate
• Actuators designed and manufactured under an accredited ISO 9001:2000 QA program
• Consult factory for CE compliant actuators

Bettis GVO Series Pneumatic Linear Valve Operators

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