D-Series Rack & Pinion Pneumatic Actuators

D-Series Rack & Pinion Pneumatic Actuators (Product Discontinued) Introduction

Bettis™ D-Series pneumatic rack and pinion actuators provide its users with a tough, work-horse like product for reliable use and economy in valve automation. designed for use in quarter-turn applications, the D-Series is ideal for the on/ off or continuous operation of plug, butterfly and ball valves, as well as dampers and other 90° turn devices. The D-Series actuators are compact and lightweight, making them very suitable for installation within areas of tight piping connections. A tough reliable Operating Ranges D-Series actuators produce torque outputs up to 22,379 in-lb (2,528 Nm) for double- acting models and 7,939 in-lb (897 Nm) spring end torques on spring-return models. work horse D-Series pneumatic actuators are suitable for continuous operation at pressures ranging from 40 to 120 psig (3 to 8 bar) while exposed to temperatures of -4°F to +175°F (-20°C with a 5 year to +80°C). Optional temperature trims extend the range from -40°F to +250°F (-40°C to + 120°C). Higher temperature options may be offered by consulting the factory. warranty for use D-Series actuators offer many significant benefits. Among them are: in all heavy duty Splined Drive Inserts – The D-Series Three-Point Suspension – D-Series blow-out proof drive shaft is fitted pistons feature a unique, three point applications with changeable inserts for universal suspension system. Each piston has mounting to a wide variety of valve three, wide, machined load fingers stems without the need for brackets or strategically located about the rear couplings. circumference of the piston. These Corrosion Resistance – As standard, load fingers counteract the piston/ rack a polyester TGIC-free powder coated side loading and prevent the natural paint , in conjunction with a fully tendency of the piston/rack to tilt in the anodized housing and dichromate actuator bore. To accept and distribute pistons, provides the D-Series actuators this loading the D-Series is also with a highly corrosion resistant equipped with a low friction Nylatron surface. Coupled with a ‘aircraft grade’ body bearing. The body bearing, which hard anodized aluminum pinion, all completely covers the working area of 304 SS fasteners, the D-Series provides the piston fingers, prevents metal to excellent protection from hostile metal contact and greatly reduces the corrosive environments. high point loading often found on other designs with only narrow heal bearings. BettisGuardTM – For the most extreme This feature provides for a more applications, BettisGuard™ adds the dependable actuator, with a longer life highest practical level of corrosion piston-seal and bearing cycle life. protection by impregnating the body and end caps, both internally and Dual Stroke Adjustment – Allows externally, with a fluoropolymer-based stroke adjustment at both outbound epoxy resin giving a smooth, hard and inbound strokes providing for finish. Combined with aluminum pinion precision alignment of your valves gears (option BGA). working element. Blowout-Proof Pinion – A unique Modular – The D-Series actuators can radiused gearing design profile easily be converted from double-acting that prevents the pinion gear from to spring-return configurations as well blowouts. as many other options. NAMUR Mounting – Allows close Multiple-Spring Design – The D-Series coupling to NAMUR designated has a multiple spring design to facilitate accessories. The pinion gear interface 40 to 120 psig supply air requirements. supports an international standard All springs are “nested” to prevent drive for positioners, switches and misalignment and are safely contained other accessories. by a spring release bolt. Precision dual stroke Low friction piston head adjustment and heel bearings

NAMUR accessory interface

One piece, blow-out proof pinion gear

Polyester TGIC-free powder coating provides excellent corrosion resistance and chip protection on end caps

Three point suspension eliminates metal-to-metal contact between pistons and cylinder and promotes high cycle life

NAMUR solenoid direct mounting interface pattern. Note that air ports are also tapped for conventional 1/4” - 18 NPT fittings, except the ultra-small Acorn nut and O-ring seal model D0012 which utilizes 1/8” - 27 protect the bolt threads, prevent Nylatron guide band NPT. contamination and water ingress provides 360° piston rack support

ISO/DIN mounting 304 stainless interface for low-profile steel fasteners direct mounting to valves Splined Inserts Fit into the bottom of the pinion gear shaft to allow universal mounting to a wide range of valve stem. Eliminates the need and expense of special brackets and couplings. +3° -10 ° Replaceable drive inserts for universal Available for virtually any valve stem – including mounting are easily adapted for square, double-D and key drives. custom applications

96°

90° 65°

-15°

+3° Materials of Construction NAMUR Control Valves and Switches For actuator control via Body – Precision cast anodized aluminum alloy an electric or pneumatic Pinion Gear – Single piece ‘aircraft grade’ aluminum signal, Bettis can supply alloy, hard anodized a wide variety of control Pistons – Cast aluminum alloy with Dichromate valves. The direct mount corrosion protection feature to the NAMUR End Caps – Cast aluminum alloy with polyester interface eliminates the TGIC-free powder coated paint expense of interconnecting Fasteners – 304 series stainless steel tubing and fittings. The Seals – Nitrile seals are standard. Viton is available universal valve (5/2 or 3/2) for high temperature and silicone for can be used for double-acting or spring-return. The single low temperature solenoid control is continuously rated and, in the event Springs – High quality carbon steel springs for of electrical failure, the actuator returns to the clockwise maximum life (normal closed or open) position; bymechanical spring in Bearings – Nylatron as a standard. Special trims available single- acting and air in the case of double-acting.

NAMUR is an international standard which allows direct mounting of control components such as solenoid valves, positioners and mechanical or proximity switches. Note that all D models 0025 through 1600 actuators have air ports which have been drilled and tapped to 1/4” – 18 NPT in the event that traditional imperial tubing or piping is required. D 0012models (due to size constraints) have as standard 1/8” NPT body air ports with a special non NAMUR bolt pattern. As options, a NAMUR solenoid interface block and NAMUR switch adapter are available for the D0012.

Control Systems Bettis D-Series actuators can be equipped with a wide variety of control systems. Components such as the Topworx range of switchbox accessories and any NAMUR control component are provided as a standard from Emerson – Actuation Technologies and are very easily bolted on to suit the required application.

Bettis D-series Actuator Range Typical Specifications Spring-return and double-acting Operating Pressures Nm In.lb. 40 – 120 psig (3 to 8 bar) 1676 14874

) 1014 8997 Temperature Standard -4°F to +175°F SI 679 6028 400 3547 -4°F to +250°F* 230 2042 168 1487 -40°F to +175°F (@ 5.5 bar / 80P 105 930

orque 71 630 *consult factory for higher temperatures T 47 413 25 220 Media Dry or lubricated air; non-corrosive gas 13,4 119 Nominal 90°, total travel adjustment 96° Actuator Rotation D12 D25 D40 D65 (see inset in middle page) sizes: D100 D150 D200 D350 D600 D950 D1600

Valve types: For more detailed technical information see our - Ball : 1/2” / DN12 10” / DN250 online documentation under www.Bettis.com/technical-data - Butterfly: 2” / DN50 20” / DN500 Document number [DOC.DSB.BD.US] SIL Rating Actuator / Accessory Interfaces and FMEDA Bettis D pneumatic actuators are manufactured to meet the following worldwide quality and safety standards: Bettis D-Series rack & pinion actuators have had a Safety Product Interface Company Operations failure modes, effects and Standards Standards Standards diagnostics assessment VDI/VDE3845 (NAMUR) ISO – 9001

(FMEDA) conducted on MP04 ISO – 5211 Quality Assurance them as performed by the Exida assessment Bettis actuators can be packaged together with a range of accessories including; organization, in accordance with the IEC 61508 code, indicating that they are suitable for use as a SIL 2 (Safety Integrity Level) rated product. Wireless Solenoids Pressure transmitter Regulators Bettis D-Series are classified as type A1 devices with a hardware fault tolerance of zero and a user of a Bettis D actuator can utilize the failure rates shown in the FMEDA report in Digital valve positioners (DVC’s) Manual override gear-boxes a probabilistic model of a safety instrumented In addition, these accessories often include dedicated options like; function (SIF) to determine suitability in part for a safety instrumented system (SIS) usage at a particular safety integrity level (SIL). Speed control plates Breather blocks Block & bleed valves

All of the above fit together by way of standard product interfaces such as NAMUR for solenoid and switch box connections and ISO-5211 for valve flange connections. Using these well known international standards ensures that Bettis products will comply with application requirements in projects worldwide.

Emerson brands for most common control accessories:

Digital Valve Controllers: Fisher® Positioners: Fisher® Regulators: Fisher® Switch boxes: TopWorx Wireless position monitor: TopWorx Solenoid valves: ASCO Numatics™ World Area Configuration Centers WACC offer sales support service This product is only intended for use in large-scale fixed installations inventory and commissioning to our global customers. Choose the WACC or sales office nearest you: excluded from the scope of Directive 2011/65/EU on the restriction of the use of certain hazardous substances in electrical and electronic NORTH & SOUTH AMERICA MIDDLE EAST & AFRICA equipment (RoHS 2). 19200 Northwest Freeway P. O. Box 17033 Houston TX 77065 Jebel Ali Free Zone USA Dubai T +1 281 477 4100 T +971 4 811 8100 Av. Hollingsworth P. O. Box 10305 325 Iporanga Sorocaba Jubail 31961 SP 18087-105 Saudi Arabia Brazil T +966 3 340 8650 T +55 15 3413 8888 24 Angus Crescent ASIA PACIFIC Longmeadow Business Estate East P.O. Box 6908 Greenstone No. 9 Gul Road 1616 Modderfontein Extension 5 #01-02 Singapore 629361 South Africa T +65 6777 8211 T +27 11 451 3700 No. 1 Lai Yuan Road EUROPE Wuqing Development Area Tianjin 301700 Holland Fasor 6 P. R. China Székesfehérvár 8000 T +86 22 8212 3300 Hungary T +36 22 53 09 50 Strada Biffi 165 29017 Fiorenzuola d’Arda (PC) Italy T +39 0523 944 411

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