Linear Product Sizing

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Linear Product Sizing Applications

• Product and Market Overview

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Market Segments Industries

• Applications
• Complete control solutions
• Low Temp applications
• Liquids Pipelines
• Gas Pipelines
• LNG Plants
• FPSO
• ANSI

Low Temp

• Industry
• Power
• Pulp and Paper
• Mining and Slurry
• Pipeline, Transmission
• Food and Pharmaceutical
• Water Works, Desalination
• Process, Petrochemical, Refinery
• Off-shore (HIPPS, Ballast Systems)

Pipeline
LNG
FPSO
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Application - Open Pedestal Mounting
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Application - Closed Pedestal Mounting
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Application - Close Coupled Mounting (Valve stem
by Bettis)
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Application - API 6A Type Actuators (Valve Stem
Bonnet by Bettis)
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Application - Knife Gate Mounting Arrangements
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Application - Control Valve Applications
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Application - Large Globe Valve Mounting
Arrangements
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Application - Large Spring Return Models
52,000 x 12 Stroke
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Application - Pneumatic On-Off Applications
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Linear Applications, Hydraulic
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Linear Applications - Desalination
PK Valve / Daelim / KOC Up to 1550 gal air
tanks Largest units 36 x 16 GVO-LP-SR-TDM 32 x
22 GVO-LP-DA-TDM
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Linear Applications Off Shore
White Rose FPSO Orbit Valves CATS system -
Closed Loop - Speed Assist
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Linear Applications - Retrofit
OSY Valves Non-vertical valve stem
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Linear Applications Pipeline
Pipeline Valves Buried or above ground
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Linear Applications
Globe Valves Dampers (trunion) Rising stem ball
valves
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Linear Applications - Controls

• Low Temp applications
• Control solutions

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Limit Switch / Position X-mitter Mounting

• Honeywell
• Westlock
• Topworx
• PF
• Turck

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Limit Switch / Position Transmitter Mounting

• Fisher DVC
• Rota LVDT
• Resistive, Voltage, Current
• Discrete

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Applications Fire-proofing

• K-Mass
• Resin
• Foil wrap
• Fire Blankets

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Valve characteristics
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Direct and Reverse Acting Valves
Direct Acting Split Gate Extend stem to Open
Reverse Acting Slab Gate Extend stem to Close
Reverse Acting Through Conduit Slab Gate
Gate rises to Open
Gate rises to Close
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Non-Rising Stem Valves
Direct Acting Wedge Gate
Direct Acting Slab Gate
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Rising Stem Valves
Direct Acting Slab Gate
Direct Acting Wedge Gate
Reverse Acting Slab Gate
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Rising Stem Valves
Rising Stem Ball Valve
Globe Valve
Direct Acting Knife Gate
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Orbit vs TruSeal ( Twin Seal)

• Mechanics of Actuation
• Both valves require a lifting motion on the
  valve stem to disengage the seat and rotate the
  ball or plug
• The mechanical twisting action required to turn
  the ball or plug is incorporated into the valve
  stem housing (referred to as the operator
  housing)
• The Orbit valve uses a very steep cam slot (1)
  which supports actuation

Orbit Rising Stem Ball Valve
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Orbit vs TruSeal ( Twin Seal)

• The TruSeal valve uses a shallow cam slot when
  supplied with a manual handwheel (2)
• The shallow cam slot does not support actuation
• An automated TruSeal valve must be configured
  with a 404 Series operator housing, which has a
  steep cam slot
• An existing manual TruSeal valve would require
  modifications for actuation
• The General Twin Seal plug valve can not be
  actuated with the Bettis GVO linear actuator
• Both the lift and twist motion must be generated
  by the actuator

TruSeal Rising Stem Plug Valve
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Valve Action Thrust Definition
Valve Stem Action (Assuming Valve Stem Position is Vertical to the Ground) Valve Gate Action Valve Gate Action
Valve Stem Action (Assuming Valve Stem Position is Vertical to the Ground) Direct Acting Reverse Acting
Stem Going Down Start Close Break Open
Stem Going Down End Close End Open
Stem Going Up Break Open Start Close
Stem Going Up End Open End Close
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Actuator Design Features

• The GVO Series of linear valve actuators
  incorporates the following features
• 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 prevents unauthorized
  disassemble of the spring cartridge
• Adjustable travel stop for the rod-retract
  position piston bottoms out for the rod-extend
  position. For specific travel applications,
  consult factory
• Removable mounting pedestal allows field adaption
  to the valve
• Swivel stem connector for ease of installation
  and stroke adjustment
• 70 durometer Nitrile seals are standard, other
  seal materials available upon request

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Design Features (cont.)

• Piston wear band, drive rod bushing and
  polyurethane rod wiper are standard for all
  models
• Pneumatic cylinder material is hard anodized
  aluminum, 2 thru 8, and fiber composite for
  sizes 10 and above (Chrome plated carbon steel
  is available as an option).
• Cylinder plate and endcap material is carbon
  steel optional aluminum for 2 thru 8
• Cylinder plate incorporates a pneumatic
  distribution groove to maximize break-out thrust
• Drive rod material is carbon steel chrome plated
  option for stainless steel
• Factory finish is Bettis Orange gloss alkyd
  enamel to RAL 2002 (other colors and coatings
  available upon request)

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Specifications and Certifications

• The GVO Series of linear valve actuators are
  designed and manufactured as follows
• Pressure rating of 150 psig MAWP (custom pressure
  ratings available)
• Static pressure test to 225 psig
• Standard operating temperature range -23º C to
  74º C (-10º F to 165º F)
• Low temperature option available, -40º C to 65º
  C (-40º F to 150º F) for 2 to 14 type DA
• XLT -46º C to 65º C (-50º F to 150º F) for 16
  to 24 type DA and all SR/FS models
• High temperature option available, -17º C to
  204º C (1º F to 400º F)
• NPTF cylinder porting, with side porting on the
  cylinder plate
• Actuators designed and manufactured under an
  accredited ISO 90012000 QA program
• Consult factory for CE compliant actuators

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Actuator Types DA (Double Acting)

• In DA actuators, the pneumatic or hydraulic
  supply fluid is required to move the piston both
  up and down.

Air / Hydraulic
Air / Hydraulic
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Actuator Types SR (Spring Return)

• In SR actuators, the supply fluid is required to
  move the piston up. The spring moves the piston
  down when the supply fluid is removed.

Air / Hydraulic
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Actuator Types FS (Fail Safe)

• In FS actuators, the supply fluid is required to
  move the piston down. The spring moves the piston
  up when the supply fluid is removed.

Air / Hydraulic
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Bettis Linear Actuator Types

• Double Acting
• DA type
• Spring Return
• SR - Fail Extended
• FS - Fail Retracted

FS
SR
DA
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Valve Action Thrust Output (Springs)
Valve Gate Action Valve Gate Action Actuator Type and Position Actuator Type and Position Actuator Type and Position
Direct Reverse GVO-LP-DA GVO-LP-SR GVO-LP-FS
Start Close Break Open Extend Rod Spring Start Air Start
End Close End Open Extend Rod Spring End Air End
Break Open Start Close Retract Rod Air Start Spring Start
End Open End Close Retract Rod Air End Spring End
Valve Gate Action Actuator Type Actuator Type
Valve Gate Action GVO-LP-SR GVO-LP-FS
Direct Acting Fail Close Fail Open
Reverse Acting Fail Open Fail Close

• The action of the valve must be matched to the
  corresponding thrust output position of the GVO

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Optional Mounting Interface

• The GVO linear actuator incorporates a standard
  open pedestal valve mounting adaption/interface
• The welded pedestal is manufactured from 2 steel
  channels and is removable from the actuator
• One end of the pedestal is machined for bolting
  to the GVO actuator
• The opposite end can be supplied as a blank to be
  machined later and fitted to the respective valve
  off-site
• If the valve top-works are provided with the
  order, the pedestal can be custom machined by
  Bettis
• The open pedestal allows for easy visual position
  indication, access to packing glands and is
  suitable for installing a positioner and/or
  travel position switches

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Optional Swivel Stem Connector

• The GVO linear actuator can be supplied with, or
  without, the valve stem connector
• If ordered, the valve stem dimensional
  information would be required and the valve-nut
  part of the connector would be machined at the
  factory to match the respective valve stem
• The Bettis 3-piece swivel connector allows ease
  of assembly to the valve stem without the need to
  rotate the complete actuator as well as allowing
  for a certain degree of misalignment
• The rod-extend travel adjustment (down stop) can
  safely be made after the actuator has been
  secured to the valve
• Optional features include hammer-blow effect
  couplings, shear couplings, anti-rotation pin and
  travel position switch triggers

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Pedestal with 3 Piece Swivel Connector Assembly

• Welded connector
• Allows easy assembly to valve stem
• Allows travel stop engagement
• Triggers limit switches
• Allows over-thrust protection (Orbit valves)

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Manual Jackscrew Override

• The GVO Series of linear valve actuators are
  available with a unidirectional manual jackscrew
  handwheel override (-MJ) for emergency use when
  plant air or power gas is unavailable
• The MJ override can also be used to hold the
  actuator in a particular position
• For models where a jackscrew override is not
  feasible due to high thrust requirements,
  dimensional clearance or lack of accessibility, a
  manual hydraulic override is available
• The MJ override is not available for type SR
  actuators

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Hydraulic Manual Override

• Available with a manual hydraulic override
  (-MH), bidirectional for double-acting and
  unidirectional for spring-return (type FS or
  SR)
• The MH override can also be used as a dampener
  for precise control of the cylinder speed
• Consult factory for availability on GVO-LP-DA
  models 2 through 14

-DA
-SR
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Manual Hydraulic Override
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Optional Accessories

• The GVO linear actuators can be configured
  with various control accessories and related
  features such as
• Power supply filter and/or pressure regulator and
  relief valve
• Pneumatic switching relay, volume booster and/or
  flow control valve
• Air fail-safe system for one or more emergency
  cycles, with double acting actuator
• Mechanical or proximity type electric position
  switch for discrete (SPDT, DPDT) position
  indication, with CSA, UL or ATEX electrical
  certification

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Optional Accessories

• The GVO linear actuators can be configured
  with various control accessories and related
  features such as
• Power supply filter and/or pressure regulator and
  relief valve
• Pneumatic switching relay, volume booster and/or
  flow control valve
• Air fail-safe system for one or more emergency
  cycles, with double acting actuator
• Mechanical or proximity type electric position
  switch for discrete (SPDT, DPDT) position
  indication, with CSA, UL or ATEX electrical
  certification

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Optional Accessories

• Travel Lockout Device
• Option for safety stop
• Lock in open or closed position
• Suitable for slab or wedge gate

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Optional Accessories

• Solenoid switching valve, AC or DC coil, with
  CSA, UL or ATEX electrical certification
• 3-way, 4-way or 5-way local auto/manual selector
  valve
• High or low static pressure pilot, single or dual
  set point
• Pneumatic positioner or controller analog or
  digital
• Fire-proofing to UL 1709
• 42 minutes 2000º F hydrocarbon fire
• K-Mass or E-Mat

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Customized Linear Actuator Model Range

• Linear Actuators
• Current range of sizes
• Double Acting Pneumatic
• 3-1/2 to 48 Diameter LP-DA Single piston
• 18 to 48 Diameter LP-DA Tandem piston
• Double Acting Hydraulic
• 3 to 24 Diameter HP-DA Single piston
• Spring Return Pneumatic/Hydraulic
• Spring End f 55,000 lbs for 14 stroke (nested
  springs)
• Spring End f 110,000 lbs for 14 stroke (spring
  array)

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NEW Standardized Linear Actuator Model Range and
Brochure

• Product initiative to produce a
  comprehensive brochure to show a pre-designed
  range of pneumatic linear actuators, DA and SR/FS
  
• Brochure lists 238 models, thrust output,
  dimensions and weights (for DA)
• DA Incorporated new small cylinder design to
  cover 38 models, 2 thru 14 diameter
• DA Existing large cylinder design covers 16
  thru 24 TDM for 35 models
• SR/FS 6 spring thrusts over 29 spring sizes are
  matched with 10 cylinder diameters and 6 stroke
  ranges for a total offering of 165 models
• Custom designed models are also available for
  specialized thrust or stroke requirements, API-6A
  actuators and linear hydraulic actuators