Heavy Duty. Heavy duty K-Range gear operators for severe industrial and municipal quarter turn applications. Features

Transcription

1 Heavy duty K-Range gear operators for severe industrial and municipal quarter turn applications. Features Worm and quadrant style. Totally enclosed. Lubricated for life. Module mounting concept for easy attachement to a wide range of valves and other equipment requiring 90 rotation. High ratios. Anti clockwise to close option. Robust construction. A range of spur reductions available. Easily automated with most electric actuators. Available in a wide range of torque outputs to suit every application. Adjustable travel stops. Can be mounted in most orientations. General application The Keystone K-Series gear operators are suitable for any quarter turn application such as high performance butterfly valves, plug or ball valves Emerson. All rights reserved. VCTDS EN 14/11

2 Parts list No. Description Material 1 Gearbox housing S.G. Iron 2 Housing cover (not shown) S.G. Iron 3 Spur box housing S.G. Iron 4 Spur box cover S.G. Iron 5 Spur gear Carbon steel 6 Worm shaft Carbon steel 7 Pinion shaft Carbon steel 8 Segment gear S.G. Iron 9 Worm gear Carbon steel 10 Handwheel S.G. Iron/aluminium 11 Thrust bearing Ball bearing 12 Worm shaft bush Bronze 13 Pinion shaft bush Bronze 14 Indication plate (not shown) S.G. Iron 15 Adjustable travel stop MS steel/electro gal 16 Travel stop lock nut MS steel/electro gal 17 Spur box fastener MS steel/electro gal 18 Sellok pin Spring steel 19 Conduit plug P.V.C. 20 Spur end cap cover S.G. Iron 21 Set screw - spur cover MS steel/electro gal 22 Grease Shell Alvania EP RO or equivalent 23 Fasteners MS steel/electro gal 2

3 Actuator orientations flow flow Clockwise to close input. 01 Orientation (standard) Anti-Clockwise to close input. 02 Orientation flow flow Clockwise to close input. 03 Orientation Anti-Clockwise to close input. 04 Orientation Typical specifying sequence F427 CAK K40 S Figure no. Mounting code Actuator type Spurbox ratio Handwheel diameter Orientation 3

4 Input/Output torques - normal industrial (Nm) Handwheel diameter (mm) Rim pull (N) Input torque (Nm) K K K26S K26S K40S K40S K65S Input/Output torques - severe industrial or public authority (Nm) Handwheel Diameter (mm) Rim pull (N) Input torque (Nm) K K K26S K26S K40S K40S K65S K65S Note: 1. Determine the valves required output torque in Nm. 2. Select the appropriate Input/Output table to use. This will be determined by the application. Normal Industrial: Allows for higher input torques/rim pull efforts. Severe Industrial/Public Authority: Is typically for municipal use where there is a maximum limit of 60 Nm input torque or 135 N rim pull effort. 3. Search through the table and find a torque value equal to, or greater than the valves required output torque. 4. Following that column vertical upwards gives the Input Torque, Rim pull Effort and Handwheel Diameter. 5. Ensure that these are within the required sizing parameters. 6. Following horizontally across from the torque value, to find which gear operator to use. 7. Check the shaft size is suitable for the unit. Selection procedure Should you need to select an actuator outside the parameters of the selection guide shown overleaf, use one of the following methods: Based on allowable input torque: 1. Determine the valves required output torque. 2. Select an actuator from the technical data s maximum torque output column. 3. Check the shaft size is suitable for the unit. 4. Divide the output torque by the selected actuator s mechanical advantage to give the actual input torque. Example: DN 300 F631 DIHI AS 2129 F Operating pressure 2100 kpa Required output torque: = 1075 Nm Maximum allowable input torque: = 60 Nm Shaft size: = 11 8 Select K26S3 rated at 3300 Nm. Check shaft size 21 4 is standard bore diameter therfore O.K. Calculate actual input torque = Actual input torque = 39 Nm < 60 Nm therfore O.K. Based on allowable rimpull effort: 1. Determine the valves require output torque. 2. Select the actuator from the technical data s maximum torque output column. 3. Check the shaft size is suitable. 4. Choose a handwheel diameter from the standard available diameters. 5. Calculate the desired mechanical advantage by dividing the output torque by the selected unit s rim pull and multiply by the handwheel radius. 6. From the technical data, select the unit that has the nearest mechanical advantage. 7. Using the selected units mechanical advantage, calculate the actual rim pull effort. Example: DN 600 F631 DIH1 AS 2129 F Operating pressure 2100 kpa Output torque: = 3680 Nm Maximum allowable rimpull effort: = 400 N Shaft size: = 21 4 Select K40S3 rated at 5500 Nm. Check shaft size 21 4 is standard bore diameter therefore O.K. Choose a handwheel diameter of 450mm. Calculate desired mechanical advantage. = x MA = 40.8 F427 K40S3 450 mechanical advantage = 45.8 > 40.8 O.K. Calculate the actual rimpull effort = x Actual rimpull effort = 357 N < 400 Selected actuator is F427 K40S Selected actuator is F427 K26S3. 4

5 P N A MTG. bolt holes equally spaced 45 off centrelines B SHUT SHUT ØM ØL ØK C G OPEN KEYSTONE ØJ ØH Handwheel diameter D D F E Nominal dimensions - K12 - K65 Gearboxes (mm) Actuator A B C D E F G ØH ØJ ØK ØL ØM N P Handwheel dia. Mass type K " K " (kgs) Mounting and adaption details - K12 - K65 Gearboxes Actuator Mounting Valve Stem type flange details stem code adaptor K12 4 x M12 x 1.75P on 127 P.C.D./ 4 x M10 x 1.5P on 83 P.C.D. CAF Nil BAB Boss D-B BAC Boss D-C BAD Boss F-D CAD Boss F-D CAE Boss F-E K18 4 x M12 x 1.75P on 127 P.C.D. CAF Nil CAD Boss F-D CAE Boss F-E 5

6 Technical data Actuator Mtg Max output Max input Ratio Ratio-with Turns Std bore Max bore Max stem Mech Adapts to type code torque (Nm) torque (Nm) main box spurbox to close dia (in) dia (in) Entry (in) advantage mtg code K12 BAD/CAF :1 NA BAD, BAC, CAD, CAE K18 CAF :1 NA CAD, CAE K26S3 CAK :1 147: CAD, CAE, CAG, CAH K26S5 CAK :1 225: CAD, CAE, CAG, CAH K40S3 CAK/DAK :1 229: CAD, CAE, DAF, CAG, DAG,CAH, DAH, DAK K40S5 CAK/DAK :1 350: CAD, CAE, DAF, CAG, DAG,CAH, DAH, DAK K65S3 DAK :1 268: DAG, CAH, DAH, DAK K65S5 DAK :1 410: DAK Note: The output torques listed have a safety factor which allows the actuator to withstand occasional overloads. Actuator selection guide Actuator GRW/F990/F129 Waterworks valves Slurry valve K-LOK F360/F362 type GRL/F991/F239 F631 F2000 RTFE seated F427 K F427 K F427 K F427 K26S F427 K40S F427 K40S F427 K40S F427 K40S F427 K65S F427 K65S F427 K65S F427 K65S Note: The general purpose (GRW/GRL), process control (F920/F990/F991) and slurry valve (F2000) sizing is based on their maximum respective rating to suit severe industrial or public authority use. Waterworks valves actuator sizing is based on 2100 kpa working pressure and an input torque of 60 Nm or 135 N rim pull. The K-LOK (F360/F362) valve sizing is based on RTFE seated valves only, and at their maximum pressure rating of 5100 kpa. For all other trims refer to the sizing table over page. Select the column of the valve type you want to actuate ie GRW. Look down that column to the valve size required. Follow that line horizontally across to the left for the most suitable actuator to use. Refer to the Adaptability chart literature sheet to establish whether Bosses are required to adapt the valve and actuator. 6

7 P N A MTG. bolt holes equally spaced 45 off centrelines B SHUT SHUT ØL ØK C G D OPEN KEYSTONE D ØJ ØH F Handwheel diameter Q R S T ØM E Nominal dimensions - 3:1 Spur Box - K26, K40 and K65 Gearboxes (mm) Actuator A B C D E F G ØH ØJ ØK ØL ØM N P Q R S T Mass type Handwheel dia. (kgs) K26S " K40S "or 21 4" K65S "or 21 4" Nominal dimensions - 5:1 Spur Box - K26, K40 and K65 Gearboxes (mm) Actuator A B C D E F G ØH ØJ ØK ØL ØM N P Q R S T Mass type Handwheel dia. (kgs) K26S " K40S "or 21 4" K65S "or 21 4" Mounting and adaption details - K12 - K65 Gearboxes Actuator Mounting Valve Stem type flange details stem code adaptor K26 4 x M12 x 1.75P on 127 P.C.D. CAK Boss K-F CAE CAD CAG CAH K40 4 x M12 x 1.75P on 127 P.C.D./ CAK Nil 4 x M20 x 2.5P on 165 P.C.D. DAK Nil CAD CAE CAF CAG, DAG CAH, DAH Boss K65 4 x M20 x 2.5P on 165 P.C.D. DAJ Nil DAK DAG Boss K-F F-E Boss K-F F-D Boss K-G Boss K-H Boss K-F, F-D Boss K-F, F-E Boss K-F Boss K-G K-H Nil Boss J-G 7

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