INFINITY ACTUATORS DRS SERIES

Transcription

1 INFINITY S DRS SERIES GVC DRS Series Scotch Yoke Actuators P.E.D.

2 3 x BEST IN CLASS The Factor The GVC tradition of excellence continues with the introduction of : GVC DRS Series Scotch Yoke Actuators Three Exclusive Features Modularity Three parts frame, spring, and air cylinder modifications are simple and quick! Welded spring modules, for complete safety. Springs or cylinders can be removed from frame module without disassembling the frame module. Conversion from spring return to double acting is EASY! Versatility Optional hydraulic override can be included or added. later Converting from fail closed to fail open is easily done in the field. Extra heavy duty travel adjustment bolts offer +/ 0% adjustment; for high speed impacts, no special end stops required. Reliability Guaranteed for million cycles! Exclusive XSeals on pistons and VSeals on the shafts out perform standard Orings. Yoke is supported by life time lubricated ball bearings. Oversized dual tie rods are internal to the cylinder to eliminate corrosion. Tie rods pass through the pistons through solid bearings, Xseals not conventional Orings better alignment, lower friction, and smoother operation. Yoke thrust pin is case hardened for higher output torques. Specifications are subject to change without notice

3 Actuator Modules GVC actuator spring modules and pneumatic modules can be removed, swapped, rebuilt, or reinstalled on the frame module without disassembling the frame module. No need even to remove top cover of frame module, because all bolting for removal of the modules is external. Actuators can easily be changed in the field from fail close to fail open by just swapping the positions of the spring and pneumatic modules. No need to dismantle the frame cover or cylinder assembly. Actuators can be modified from double acting to spring return easily in the field by adding a spring module. Springs are lifetime lubricated and epoxy coated. Frame Module Flexijoint Unique Sealing Features Optional Hydraulic Override Springs are precompressed inside their welded spring modules for safety and ease of use. Pneumatic cylinders are lined with hard chrome plating. Smooth to eliminate wear of piston seals, the surface is very hard, for long life. Inside the pneumatic module, dual oversized tie rods are protected from external corrosion. Where the tie rods pass through the piston head, GVC has improved the design by providing a slide bearing, where most designs don t. This bearing is important to help maintain alignment and assure smooth operation. Inside the frame module, the yoke is supported by life time lubricated bearings. Needle roller bearings ensure the most efficient torque transmission. Extra heavy duty travel adjustment bolts allow for +/ 0% adjustment of the 90 degree stroke. The area of contact is large, to withstand the impact forces. The yoke thrust pin is made of case hardened steel to resist. wear The piston shaft is supported on each side of the frame module by solid bearings that ensure proper alignment and smooth operation. Each piston shaft of the GVC DRS is equipped with two Flexijoints. These specially designed joints compensate for movement and changes in alignment to reduce internal stresses and increase output torque. The thrust transmitted through the Flexijoints ensures no side thrust on the cylinder walls and bearings. Piston seal is GVC X design. Flexibility of the sealing material reduces friction, prevents leakage, and extends actuator life. The X shaped seal is wear compensating, and the unique shape of the seal retains the grease for longer periods. The piston is guided by a PTFE thrust bearing, which helps keep the piston centered, and seal wear to a minimum. The tie rod seal is also of the GVC X design. Old fashioned Orings are replaced by these flexible, low friction, resilient seals to reduce the failure rate of tie rod seals. Also reduces the wear and tear to the tie rods themselves. GVC has also replaced the standard Oring of the shaft seal. In this position, we provide a proven V seal design. This selfenergized, wear compensating seal guarantees low hysteresis and minimum friction. Like the X seal of the piston and tie rod seals, the inherent shape of the Vseal helps keep the grease where it needs to be. GVC DRS actuators may be ordered with an optional hydraulic override, or the override may be retrofitted to an existing actuator. The override is fitted into the spring cartridge, to keep the overall dimensions of the actuator and override to a minimum. Can withstand up to,000 psi hydraulic pressure. Easy to operate. Special Z seal ensures zero leakage and extended life. Conclusion : Most actuators are perfectly good. Some are better then others but the GVC DRS is Best In Class! Specifications are subject to change without notice 3

4 FEATURES X seals and V seal for low wear and tear, each with grease retaining groove Extra heavy duty travel adjustment bolts can withstand high impact and are easy to adjust Needle roller bearing provides for the most efficient torque transmission The actuator can easily be converted to fail open from fail close, by interchanging the spring and pneumatic modules No need to dismantle the frame cover to install/ change spring or air module The spring is well caged in the cartridge form The pneumatic cylinders are lined with hard chrome plating smooth to eliminate wear of piston seals for long life PIST ON SEAL AND GUIDE YOKE PIN THRUST BEARING The piston is guided by PTFE thrust The carrier is well guided on the bearing, to ensure no metal to metal support rod contact Case hardened steel of the yoke The seal is X shape with flexibility, to thrust pin is strong for consistent minimize the friction transmission of the force The seal flexibility ensures no leakage Grease nipple for lubrication and very long life Larger intervals between scheduled Due to inherent shape, it retains the maintenance grease for a longer period Guaranteed operation of million cycles FLEXI JOINT The thrust transmitted through the Flexi joint ensures no side thrust on the cylinder walls and the bearings The Flexi joint provides an easy means to assemble/ dismantle the cylinder module to the frame In spring return actuators, dual Flexi joints allow the carrier to operate perfectly and smoothly 4 Specifications are subject to change without notice

5 INFINITY INFINITY ACTUA ACTUA TORS TORS Solid bearing for piston rod for better alignment and smooth operation Internally mounted hydraulic override Guided, lifetime lubricated epoxy coated springs The tie rods are enclosed in the cylinder for the best performance, for high corrosion protection, and a longer life of the actuator The hydraulic override is built into the spring carrier Can be installed at a later date The vent valve is provided to check the gland leak on the direct mount valves The vent valve has built non return function, for IP67 Secondary vent valve function is to detect leakages in the rod seal area of pneumatic cylinder SUPER EFFICIENT! Needle bearings, Flexi joint, and the hardened yoke thrust pin bearing, are all incorporated into the actuator for longer, smoother operation. The GVC DRS actuator gives you greater efficiency and higher torque output, with less maintenance. Superior design with lower costs! HEA VY DUTY BEARINGS The piston rod is guided on the heavy duty bearing V Seal at the rod end ensures a very long life The bearing is built with a high grade bronze metal Low friction for smooth operation YOKE BEARING The yoke is supported on life time lubricated ball bearings Very low coef ficient of friction Provides 98% of the torque transmission Wear and tear of the yoke is reduced due to the alignment and support provided by the bearings X SEAL ON TIE ROD The X seal provides the flexibility in sealing Due to additional linear bearings, the tie rod is not under wear and tear The X seal provides extremely low friction and a long life Specifications are subject to change without notice 5

6 SCOTCH YOKE Conventional system Excellent for valves having break torque much higher than run torques Comparatively, less cyclic load Light weight Requires only periodic servicing Cost efective LOW FRICTION PISTON SEAL Flexible X style seal seals the piston to the cylinder wall. Hard chrome plated cylinder ensures a smooth surface for the piston seal to glide along. Chrome will resist flaking or peeling, ensuring a long lasting smooth surface Spring End Torque Pneumatic Break Torque Run Torque SCOTCHYOKE Spring Break Torque Pneumatic End Torque SPRING INSPECTION The spring pack can be easily removed from the actuator for the inspection. In most critical shut down applications it is a requirement that springs are periodically checked for cracks, low set and buckling to verify the health of the spring. GVC High Performance Actuator provides this feature to allow our customers to run their plants smoothly. LOW FRICTION LIP SEAL PRINCIPLE OF SCOTCH YOKE MAKE B MAKE R GVC The roller is directly mounted on pin High friction Low eficiency of transmission Line contact for load transmission Square drive is mounted on pin Larger friction Lower eficiency of transmission Larger face contact for load transmission Roller is mounted on a needle roller bearing Very low friction Very high ef ficiency of transmission Line contact for the load transmission 6 Specifications are subject to change without notice

7 INFINITY INFINITY ACTUA ACTUA TORS TORS EFFICIENCY OF SCOTCH YOKE S FORCE OF PISTON F Produced by Air and Piston PRESSURIZED AIR PISTON YOKE PIVOT POINT OF OUTPUT THE SCOTCH YOKE IS A LINK MECHANISM ON A SWEEP OF 90 (A) Due to the Scotch Yoke construction, the torque across the stroke is not constant. (B) Due to the construction at each point of rotation the torque varies, this is due to the fact that at each degree, the perpendicular distance to the force is changing. Axis of rotation LINE OF ACTION FORCE PERPENDICULAR DISTANCE L Perpendicular distance from Ø line of action of force to point of pivot = L/ cos Ø TORQUE RATIO BASED ON RUN TORQUE DRS PERFORMANCE CURVE BREAK TORQUE RUN TORQUE STEM ROTATION Hence force multiplied by perpendicular distance, gives us the torque. By neglecting frictional force we get: Torque = FC Cos²ө This is a frictionless mechanism, but conventionally, a factor for friction must be included in our equation. This friction, varies with the angular position. DRS EFFICIENCY Due to the needle roller on the load carrying pin Due to the ball bearing Yoke on Loss on 90 and 0 is only % Hence 98% of the torque is available for work. Only % of the force is lost to friction this makes GVC actuators much more efficient than those of our competitor MAKE % Loss at 0 and 90 GVC % MAKE B 6% MAKE R 7% Specifications are subject to change without notice 7

8 DOUBLE ACTING TORQUE MODEL DRSB0300 DRSB0350 DRSB0400 DRSC0300 DRSC0350 DRSC0400 DRSC0500 DRSD0300 DRSD0350 DRSD0400 DRSD0500 DRSD0600 DRSD0700 DRSE0400 DRSE0500 DRSE0600 DRSE0700 DRSE0800 DRSE0900 DRSG0500 DRSG0600 DRSG0700 DRSG0800 DRSG0900 STROKE POSITION Operating Pressure (psig) Air Torque Output Start/ Min./ End (inlb) Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum 0467 Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum 0899 Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Specifications are subject to change without notice

9 DOUBLE ACTING TORQUE MODEL DRSG0700 DRSH0600 DRSH0700 DRSH0800 DRSH0900 DRSH000 DRSH0800 DRSH0900 DRSJ0700 DRSJ0800 DRSJ0900 DRSJ000 DRSJ0800 DRSJ0900 DRSJ000 DRSM000 DRSM00 DRSM00 DRSM300 DRSM000 DRSM00 DRSM00 DRSM300 Operating Pressure (psig) STROKE POSITION Air Torque Output Start/ Min./ End (inlb) Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End 938 Minimum 6504 Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Start/End Minimum Specifications are subject to change without notice 9

10 SPRING RETURN TORQUE MODEL DRSB0300E6 DRSB0350E6 DRSB0400E6 DRSB0300E5 DRSB0350E5 DRSB0400E5 DRSB0300E4 DRSB0350E4 DRSB0400E4 DRSB0300E3 DRSB0350E3 DRSB0400E3 DRSB0300E DRSB0350E DRSB0400E DRSB0300E DRSB0350E DRSB0400E SPRING TORQUE Start/ Min./ End (Inlb) Operating Pressure (psig) Air Torque Output Start/ Min./ End (inlb) Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Specifications are subject to change without notice

11 SPRING RETURN TORQUE MODEL DRSC0300E4 DRSC0350E4 DRSC0400E4 DRSC0500E4 DRSC0300E3 DRSC0350E3 DRSC0400E3 DRSC0500E3 DRSC0300E DRSC0350E DRSC0400E DRSC0500E DRSC0300E DRSC0350E DRSC0400E DRSC0500E DRSD0300E4 DRSD0350E4 SPRING TORQUE Start/ Min./ End (Inlb) Operating Pressure (psig) Air Torque Output Start/ Min./ End (inlb) Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Specifications are subject to change without notice

12 SPRING RETURN TORQUE MODEL DRSD0400E4 DRSD0500E4 DRSD0600E4 DRSD0350E3 DRSD0400E3 DRSD0500E3 DRSD0600E3 DRSD0400E DRSD0500E DRSD0600E DRSD0400E DRSD0500E DRSD0600E DRSE0500E4 DRSE0600E4 DRSE0700E4 DRSE0800E4 DRSE0500E3 SPRING TORQUE Start/ Min./ End (Inlb) Operating Pressure (psig) Air Torque Output Start/ Min./ End (inlb) Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Specifications are subject to change without notice

13 SPRING RETURN TORQUE MODEL DRSE0600E3 DRSE0700E3 DRSE0800E3 DRSE0900E3 DRSE0600E DRSE0700E DRSE0800E DRSE0900E DRSE0600E DRSE0700E DRSE0800E DRSE0900E DRSG0600E4 DRSG0700E4 DRSG0800E4 DRSG0900E4 DRSG0600E3 DRSG0700E3 Operating Pressure (psig) SPRING TORQUE Start/ Min./ End (Inlb) Air Torque Output Start/ Min./ End (inlb) Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Specifications are subject to change without notice 3

14 SPRING RETURN TORQUE MODEL DRSG0800E3 DRSG0900E3 DRSG0700E3 DRSG0700E DRSG0800E DRSG0900E DRSG0700E DRSG0700E DRSG0800E DRSG0900E DRSG0700E DRSH0600E3 DRSH0700E3 DRSH0800E3 DRSH0900E3 DRSH000E3 DRSH0800E3 DRSH0900E3 SPRING TORQUE Start/ Min./ End (Inlb) Operating Pressure (psig) Air Torque Output Start/ Min./ End (inlb) Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Specifications are subject to change without notice

15 SPRING RETURN TORQUE MODEL DRSH0700E DRSH0800E DRSH0900E DRSH000E DRSH0800E DRSH0900E DRSH0700E DRSH0800E DRSH0900E DRSH000E DRSH0800E DRSH0900E DRSJ0800E4 DRSJ0900E4 DRSJ000E48 DRSJ0800E4 DRSJ0900E4 DRSJ000E4 SPRING TORQUE Start/ Min./ End (Inlb) Operating Pressure (psig) Air Torque Output Start/ Min./ End (inlb) Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Specifications are subject to change without notice 5

16 SPRING RETURN TORQUE MODEL DRSJ0900E3 DRSJ000E3 DRSJ0800E3 DRSJ0900E3 DRSJ000E3 DRSJ0900E DRSJ000E DRSJ0800E DRSJ0900E DRSJ000E DRSJ0800E DRSM00E4 DRSM00E4 DRSM300E4 DRSM000E4 DRSM00E4 DRSM00E4 DRSM300E4 SPRING TORQUE Start/ Min./ End (Inlb) Operating Pressure (psig) Air Torque Output Start/ Min./ End (inlb) Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Specifications are subject to change without notice

17 SPRING RETURN TORQUE MODEL DRSM00E3 DRSM300E3 DRSM000E3 DRSM00E3 DRSM00E3 DRSM300E3 DRSM300E DRSM00E DRSM300E SPRING TORQUE Start/ Min./ End (Inlb) Operating Pressure (psig) Air Torque Output Start/ Min./ End (inlb) Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End Start Min End TECHNICAL INFORMATION WEIGHT DOUBLE ACTING BORE DRSB DRSC DRSD DRSE DRSG DRSH DRSJ DRSM WEIGHT (lb) Specifications are subject to change without notice 7

18 WEIGHT SPRING RETURN BORE DRSBE DRSCE DRSDE DRSEE DRSGE DRSHE DRSJE DRSME WEIGHT (lb) AIR VOLUME INWARD OUTWARD FORCE OF PISTON F Produced by Air and Piston PRESSURIZED AIR PISTON YOKE PIVOT POINT OF OUTPUT DRSB DRSC DRSD DRSE DRSG DRSH DRSJ DRSM BORE TYPE DISPLACEMENT (cu.in.) OUTWARD INWARD OUTWARD INWARD OUTWARD INWARD OUTWARD INWARD OUTWARD INWARD OUTWARD INWARD OUTWARD INWARD OUTWARD INWARD Specifications are subject to change without notice

19 MOUNTING DIMENSIONAL DETAILS MODEL d KEY L5 M N ØO FLANGE DRSB 80 X4X56 60 M0 65 F6 DRSC 00 8X6X83 90 M F5 DRSD 0 3X8X 0 M0 98 F30 DRSE 60 40XX M F35 DRSG 78 45X5X M F40 DRSH 0 50X8X M F48 DRSJ 80 63X3X M F60 DRSM X40X M F60 MODEL L L4 C D ØE CONN. DRSB / NPT DRSB / NPT DRSB /4 NPT DRSC / NPT DRSC / NPT DRSC /4 NPT DRSC /4 NPT DRSD / NPT DRSD / NPT DRSD /4 NPT DRSD /4 NPT DRSD /4 NPT DRSD NPT DRSE /4 NPT DRSE /4 NPT DRSE /4 NPT DRSE NPT DRSE NPT DRSE / NPT DRSG /4 NPT DRSG /4 NPT DRSG NPT DRSG NPT DRSG / NPT DRSH /4 NPT DRSH NPT DRSH NPT DRSH / NPT DRSH / NPT DRSJ NPT DRSJ NPT DRSJ / NPT DRSJ / NPT DRSM / NPT DRSM NPT DRSM NPT 0 Specifications are subject to change without notice

20 VALVE AUTOMATION SYSTEM GLOBAL V ALVES MODEL : MAXIMUM PRESSURE : WORK ORDER NO : Mfg.DATE : Heavy Duty Scotch Yoke Actuators MATERIAL OF CONSTRUCTION DOUBLE ACTING GVC S.NO DESCRIPTION CYLINDER PISTON ROD LIP SEAL FOR PISTON ROD BEARING BUSHING YOKE PIN QTY MATERIAL M.S. EN8 NBR PHOSPHOR BRONZE 30MnSr5 S.NO DESCRIPTION BALL BEARING NEEDLE BEARING CAGE FOR NEEDLE BEARING REAR CAP HEX NUT QTY MATERIAL 0MnCr5 6 CARRIER 9 HEX NUT 7 CONNECTING NUT EN9 30 BUSHING PHOSPHOR BRONZE 8 YOKE INSERT 3 HEX HEAD SCREW (H.T.) 9 GUIDE ROD EN8 3 HEX SOCKET HEAD SCREW (H.T.) 0 TIE ROD FOR CYLINDER EN8 33 HEX SOCKET HEAD SCREW (H.T.) 4 TRAVEL ADJ. BOLT EN8 34 HEX SOCKET HEAD SCREW (H.T.) O RING FOR TOP COVER HEX SOCKET HEAD SCREW (H.T.) CHECK VALVE CENTRAL BLOCK NBR NAME PLATE O RING SPRING WASHER QUAD SEAL FOR GUIDE BUSHING 8 ALUMINUM NBR NBR 6 CENTRAL BLOCK COVER 47 WASHER 7 GUIDE BUSHING PHOSPHOR BRONZE 48 EXTERNAL CIRCLIP 8 YOKE 49 EXTERNAL CIRCLIP 9 WASHER FOR BEARING SS EXTERNAL CIRCLIP 0 CYL COVER FRONTEND 5 LUBRICATION NIPPLE PISTON 5 TEFLON STRIP CYL COVER REAR END 53 GRUB SCREW 3 QUAD SEAL FOR PISTON NBR Specifications are subject to change without notice

21 VALVE AUTOMATION SYSTEM GLOBAL V ALVES MODEL : MAXIMUM PRESSURE : WORK ORDER NO : Mfg.DATE : Heavy Duty Scotch Yoke Actuators MATERIAL OF CONSTRUCTION SPRING RETURN GVC S.NO DESCRIPTION QTY MATERIAL S.NO DESCRIPTION QTY MATERIAL CYLINDER M.S. 9 HEX NUT PISTON ROD EN8 30 BUSHING PHOSPHOR BRONZE 3 LIP SEAL FOR PISTON ROD NBR 3 HEX HEAD SCREW (H.T.) 4 BEARING BUSHING PHOSPHOR BRONZE 3 HEX SOCKET HEAD SCREW (H.T.) YOKE PIN CARRIER CONNECTING NUT YOKE INSERT GUIDE ROD TIE ROD FOR CYLINDER 30MnSr5 EN9 EN8 EN8 33 HEX SOCKET HEAD SCREW (H.T.) 34 HEX SOCKET HEAD SCREW (H.T.) 35 NAME PLATE 3644 O RING 45 SPRING WASHER 46 QUAD SEAL FOR GUIDE BUSHING 8 ALUMINUM NBR NBR TRAVEL ADJ. BOLT EN8 47 WASHER O RING FOR TOP COVER NBR 48 EXTERNAL CIRCLIP 3 HEX SOCKET HEAD SCREW (H.T.) 49 EXTERNAL CIRCLIP 4 CHECK VALVE 50 EXTERNAL CIRCLIP 5 CENTRAL BLOCK 5 LUBRICATION NIPPLE 6 CENTRAL BLOCK COVER 5 TEFLON STRIP 7 GUIDE BUSHING PHOSPHOR BRONZE 53 GRUB SCREW 8 YOKE 54 SPRING COVER REAR END WASHER FOR BEARING CYL COVER FRONTEND PISTON CYL COVER REAR END QUAD SEAL FOR PISTON BALL BEARING NEEDLE BEARING CAGE FOR NEEDLE BEARING SPRING COVER FRONTEND SS304 NBR 0MnCr SPRING TUBE SPRING CONNECTION ROD PISTON FOR HYDRAULIC M.O. SPRING RETAINER PISTON ROD FOR HYDRAULIC M.O. HEX NUT LIP SEAL TEFLON STRIP M.S. EN 47 STAINLESS STEEL CARBON STEEL CARBON STEEL CARBON STEEL 8 HEX NUT Specifications are subject to change without notice

22 ORDERING CODE MODEL DRS a b c d e f FRAME SIZE B C D E G H J M ORDERING EXAMPLE DRSE0700E4 Frame size E, Cylinder bore 700 mm Spring Return with Spring set 4, fail close with NBR seals DRSC0400HN Frame size C, Cylinder bore 400 mm Double Acting with HNBR seals MIBH ORDERING CODE Ordering code for manual override needs complete DRS code since the manual override can be installed at a later stage, hence MIBH needs to be specific for each model e.g. MIBH for DRS E700E4 would be MIBHDRSE700E4 CCW This is the standard version for fail close, or air to open/ spring to close. Looking from the top of the yoke (i.e. Where limitswitch mounts), the drive will rotate counter clockwise (ccw) when air is appllied to the. actuator when air is vented, springs will the rotate drive clockwise to close valve CW This is the version for fail open. Looking from the top of the yoke, the drive will rotate clockwise when air is apply to the actuator. When the air is vented, springs will rotate the drive counter clockwise to open the valve MOPD CYLINDER BORE PNEUMATIC HYDRAULIC 300 HY HY HY HY HY HY HY HY The torque chart indicates the MOPD. (Maximum operating pressure differential) It is very critical not to exceed the MOPD DUAL CYLINDER OPTION () SINGLE CYLINDER DUAL CYLINDER : Default CCW : Counter Clockwise fail close CW : Clockwise fail open DOUBLE ACTING SPRING CODE NIL HYDRAULIC OVERRIDE This option designates that twin pneumatic cylinders are installed on the frame. For double acting twin cylinder style, one pneumatic cylinder is mounted on each side of frame. For the spring return twin cylinder style, to pneumatic cylinders are mounted in tandem on the pneumatic side of the frame SEALS NBR 4 F to 75, Viton F 4 F to +50, EPDM F 5 F to +00, Flouro F Silicon 45 F to + 00 F, HNBR 50 F to 70 F g MIBH CCW CW CW Specifications are subject to change without notice 3 E E E3 E4 SPECIAL VERSION CYLINDER BORE ENPPLATED SIDE HAND WHEELOVERRIDE SUBSEA TO 30M SPECIAL INSTRUCTION h SEAL MATERIAL NBR VITON AV EPDM E FLOURO FS SILICON HNBR HN HYDRAULIC CYLINDER DRS actuator are also supplied with hydraulic cylinder. The Torque chart for double acting and Single acting is reffered same as pneumatic to choose right size of Hydraulic Cylinder, Choose DRS with pneumatic model with maximum air pressure possible as shown in chart Last three digit shows bore of the cylinder in mm. Select Hydraulic pressure in bar With above data calculate nearest Hydraulic actuator bore eg. DRSD0600, maximum pressure allowable is 4 bar. (No torque details beyond 4 bar is shown) if Hydraulic pressure is 00 bar the calculated Hydraulic bore will be 0 mm choose Hy05. Selected model will be DRSDHY05 CNP SWH SSD SU

23 3x Factor Control Quality