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Bettis BH series

Bettis BH series. Hydraulic Helical Spline Actuators & accessories Product presentation. Bettis Hydraulic offering evolution. For years you have been asking for a small, rugged and competitively priced hydraulic actuators.

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Bettis BH series

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  1. Bettis BH series Hydraulic Helical Spline Actuators & accessories Product presentation

  2. Bettis Hydraulic offering evolution • For years you have been asking for a small, rugged and competitively priced hydraulic actuators. • With hydraulics gaining in popularity, it became evident that we had to react and find a suitable solution. • Systems such as un-manned platforms are more and more automated using only hydraulics as the source of energy to drive the various valves and systems.

  3. Old Bettis hydraulic range Double acting With the Bettis HD hydraulic as our smallest model available, our smallest double acting offering generates around 10,000in/lb. Hard to sell an HD hydraulic when they are looking at automating 2” and 3” valves!!! In/lbs Torque 2,500 5,000 10,000 20,000 30,000 50,000 100,000 150,000 13,514- 15,424- 26,861- 29,688- 36,798- 41,152- 55,197- 75,104- 89,064- 92,775- 10,135- 20,270- 24,387- 27,599- 40,291- 51,441- 192,265- HD251 HD352 G01 G2 G3 G4 1500psi / 2000psi / 3000psi

  4. Old Bettis hydraulic range Spring return • The same thing can be said when we look at what we had when talking spring return. • With the smallest HD providing 5,000in/lb we can understand why we where not able to play in the small valve segment of the market with our hydraulic… Torque In/lbs 2,500 5,000 10,000 20,000 30,000 50,000 100,000 150,000 82,057- 42,224- 14,776- 49,535- 97,370- 25,004- 16,917- 4678- 28,566- 10,015- 11,115- 160,430- HD251-SR HD352-SR G01-SR G2-SR G3-SR G4-SR G5-SR Spring-End Torque (Balanced @ 2000 psi)

  5. Who is Damcos? Family owned company specialised in Environmental controls Thermostatic controls Heating and AC control systems Automation Marine tank management systems Acquired by 3I industries Changed name to Damcos Integrated Tank management systems

  6. New Bettis hydraulic range Double acting BHH125 BHH500 BHH2000 BHH8000 BHH250 BHH1000 BHH4000 BHH16000 -108,569 -141,611 -113,289 -217,137 -1,770 -14,151 -17,701 -28,322 -70,806 -13,571 -27,142 -35,403 -54,284 -56,644 -1,696 -2,213 -1,106 -885 -6,786 -3,450 -4,425 -7,081 -8,851 -1,696 In/lbs Torque 2,500 5,000 10,000 20,000 30,000 50,000 100,000 150,000 13,514- 15,424- 26,861- 29,688- 36,798- 41,152- 55,197- 75,104- 89,064- 92,775- 10,135- 20,270- 24,387- 27,599- 40,291- 51,441- 192,265- HD251 HD352 G01 G2 G3 G4 1500psi / 2000psi / 3000psi

  7. New Bettis hydraulic range Spring return BHHF16000 BHHF4000 BHHF8000 BHHF2000 BHHF1000 BHHF125 BHHF500 BHHF250 -42,483 -11,948 -23,897 -266 -575 -1239 -2832 -5364 Torque In/lbs 2,500 5,000 10,000 20,000 30,000 50,000 100,000 150,000 82,057- 42,224- 14,776- 49,535- 97,370- 25,004- 16,917- 4678- 28,566- 10,015- 11,115- 160,430- HD251-SR HD352-SR G01-SR G2-SR G3-SR G4-SR G5-SR Spring-End Torque (Balanced @ 2000 psi)

  8. Bettis Actuators BHH and BHHF Complete range: BHH 125 to BHH 16000 Torque from 125 Nm (1100 in/lbs) to 16.000 Nm (141,000 in/lbs) at 135 bar (2000 psi) BHH 250 BHHF 250 BHHF = BHH + spring cartridge

  9. Bettis BH Helical concept • The BH operating principle is based on the field-proven helical spline design, producing a 90 degree output rotation as the piston moves up and down between its solid end stops. • When pressure or spring force is applied on either side of the piston, the helical spline causes the piston to rotate. • The BH piston utilizes multiple helical splines which engage with reciprocal splines in the actuator’s lower housing. • The splines minimize the surface stresses so that wear and fatigue are minimal.

  10. Bettis BH actuator, operation principle Working principle BHH double acting:

  11. Bettis BHHF actuator, operation principle BHHF Spring Return Working principle: *Fail open is a factory option

  12. Bettis BH Features and benefits • The BH offers a completely balanced torque transfer train. This balanced rotary principle assures that no side or bending load is applied to the valve stem during operation. • Therefore ,valve stem seal wear is reduced and valve stem failure minimized. • High vibration and shock resistance. • High integrity and compact valve assembly • Optimum model selection for smaller size valve automation needs

  13. Conventional hydraulic system

  14. Bettis BH torque characteristics • The BHH double-acting models offers both a linear torque output and a proportional torque output! • Basic principle: • Area X Pressure X Moment Arm = Torque

  15. Bettis BH torque characteristics • The D/A actuator produces a linear torque output • Eliminating the low point at mid stroke that has to be considered in actuator sizing • At a given and constant pressure, the torque output remains the same true 90 degree rotation. Rotation 0 45 90 435 psi 2000 psi

  16. Bettis BH torque characteristics • The torque output of the D/A design is directly proportional to the supply pressure. • As supply pressure varies, proportional torque output will be obtained. • Torque outputs are published at industry standard pressures in the brochure. 435 psi 2000 psi

  17. Bettis BH torque characteristics • On the other hand the BHHF design or spring return version, will provide torque characteristics that takes into account the compression of the spring in storing it’s energy to achieve fail capabilities. • As the cylinder side is pressurized. The initial high torque output will be reduce proportionally to the force needed to compress the springs true the travel of the piston. • Similarly, the torque output on the spring side will decline as the tension from the springs is release true the 90 degree travel.

  18. Bettis BH torque characteristics • The torque output of the BHHF or S/R design is affected by the supply pressure on the piston side, but will remain static on the spring side. • As the Spring load is preset, it’s characteristics are fixed • While torque output are published at various pressures, the limiting and deciding factor in the selection on the actuator shall be the spring side torque capacity BH Spring return

  19. Bettis BHH Double Acting Actuator

  20. Double acting BHH technical data: Working pressure: 40-207 bar / 580-3000psi Test pressure: 1.5 x working pressure Burst test: min. 675 bar (10,000psi) Temperature range: -20˚C to +80˚C / -5˚F to +180˚F Low temp : CF Angle of rotation: 90˚ ± 1˚ Start of rotation adjustment: +/- 7.5˚ Insert spline rotation adjustment: 5˚ per tooth Torque range: 125 to 16000 Nm at 135 bar 1000 to 142,000 in/lbs at 2000 psi Viscosity of hydraulic oil: 15 to 200 cSt BHH advantages Smallest footprint to torque ratio Compact an concentric design Unique and simple design with built-in crossover valve. Reliable and rugged, with more than 30 years service records on basic design. High vibration resistance Balanced helical design eliminates side loading on valve stem assembly High water ingress protection – IP68 Easy adaptation to all well-known quarter-turn valves. Unlimited mounting positions and with built-in adjustments for end stops of rotary movement. Design ready for control functions Bettis BHH actuator data

  21. BHH Double Acting Actuator

  22. BHHF Single Acting Actuator

  23. Double acting BHHF technical data: Working pressure: 120-207 bar / 1750-3000psi Test pressure: 1.5 x working pressure Burst test: min. 675 bar (10,000psi) Temperature range: -20˚C to +80˚C / -5˚F to +180˚F Low temp : CF Angle of rotation: 90˚ ± 1˚ Start of rotation adjustment: +/- 7.5˚ Insert spline rotation adjustment: 5˚ per tooth End closing torque range: 30 to 4800 Nm 265 to 43,000 in/lbs Viscosity of hydraulic oil: 15 to 200 cSt BHHF advantages Smallest footprint to torque ratio Compact an concentric design Spring action by means of belleville springs assembly. Unique and simple design with built-in crossover valve. Reliable and rugged, with more than 30 years service records on basic design. High vibration resistance Balanced helical design eliminates side loading on valve stem assembly High water ingress protection – IP68 Easy adaptation to all well-known quarter-turn valves. Unlimited mounting positions and with built-in adjustments for end stops of rotary movement. Design ready for control functions Bettis BHHF actuator data

  24. BHHF Single Acting Actuator

  25. BH cross over valve • The fundamental difference with the BH, is the use of a non-compressible media as a source or energy. You can not vent…you need to pipe it back and account for it. • Cross over valves • It provides the actuator the ability to transfer it’s hydraulic fluid from one side of the piston to the other, allowing for manual operation and free rotation of the unit. • Where manual operation would be achieved by driving the male output shaft on the unit, true use of a spanner or a hand pump, the “cross over” valve would allow local operation without disturbing the controls.

  26. Bettis BH assembly components. • An hybrid between the insert concept and the direct flanged adaption, the BH design provides flexibility in many ways to mount to valve bonnets and stem. • To get a complete assembly, the three main components need to be specified and accounted for. • Once the actuator selection is done, you need to specify the flange and insert to complete the unit. 1 2 3 VALVE

  27. Bettis BH assembly components. 1 • Complete actuator assembly • requires following parts • Actuator model • Adaptor for valve shaft (Insert) • Intermediate flange incl. glide- ring 2 3 VALVE

  28. Bettis BH assembly components. Adaption parts used to complete the actuator assembly Delivered assembled from factory 2 3

  29. Bettis BH assembly components. Intermediate flange The top of the flange is machined to fit the actuator.

  30. Bettis BH assembly components. Intermediate flange The buttom of the flange can be ordered blind or machined according the the current ISO 5211 standards. See adaption chart

  31. Bettis BH assembly components. Spindle insert The inserts can be ordered blind or with different configurations Available single or double keys, squared or double D See adaption chart

  32. BH adaption chart

  33. Bettis BH direct mount to valve

  34. Bettis BH, channel mount to valve

  35. 90° BH travel stop adjustment • The BH design provides three distinct ways to adjust the 0 degree or the 90 degree position. • It must be understood that the BH is a 90 +/- 1degree rotation unit. • In order to provide full open or close accurate adjustment options are available… +/-1°

  36. BH travel stop adjustment • In order to adjust the 0° or 90° positions; • External adjustment rods are accessible and will provide a +/-7.5° travel adjustment. • The adjustment can be performed after the assembly of the actuator to the valve. 7.5° 7.5° -7.5° 90° +7.5°

  37. BH travel stop adjustment • In order to adjust the 0° or 90° positions; • External adjustment rods are accessible and will provide a +/-7.5° travel adjustment. • The tooth on the insert also provide adjustment capabilities. With a 5° per tooth rotation, you can take the adjustment beyond the 7.5° of the external rods. 7.5° 7.5°

  38. BH travel stop adjustment Adjustment of valve stem

  39. BHH actuator assembly BHHF Mounted on Butterfly valve or Ball valves

  40. Control Block System • As mentioned previously, the non compressible media as your energy source is the difference… • While some will have valve cabinets and will run tubing directly to the ports, others will want to have speed controls, ability to lock in any position and other features at their disposal locally. • That’s where the control block comes in… • In it’s basic form it will provide individual speed controls, but can be configured to answer all applications. • But it will mostly be the host for various options and attachments • Hand pump can be mounted • Position switch integrated • …

  41. BH Control Block System

  42. BH Control Block System Most frequently used types of control blocks: CB1-S-H CB1A-S-H CB2-PCV-R-T-H-E CB2-OYSTER-S-H 1-H-P Block codes: CB : Control Block 2 : 2-line actuator (BHH...) 1 : 1-line actuator (BHHF...) 1A: 1-line actuator (BHHF..Fail open) S : Throttle/Stop valve PCV : Pilot operated Check valve R : Relief valve T : Throttle valve H : Quick connection for hand pump E : Interface for EL, potentiometer 0-100% and on/off HP-D: Hand Pump for DA HP-S : Hand pump for SR 5 basic blocks in 29 variants for 2-line, - 7 variants for 1 line, fail close - 7 variants for 1 line, fail open Hand pump option

  43. Direct Electric Indication Mounted in Control Block

  44. Top mounted position indicator • Beacon indicators mounted on actuators • Two proximity switches multiple options available • Mounted on top of actuator. Beacon indicator Bracket Top BRHHF

  45. Top mounted Electric Indication Top mounted indicators can be mounted to male output drive with the use of a transition plate.

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