TECHNICAL SERVICE MANUAL
Contents
1. M 4 x4 O RING MATERIAL A BunaN Standard G Ethylene Propylene B Neoprene L Viton Seal all other O Rings Buna N D Viton M Teflon Seal all other O Rings Buna N E Teflon N Teflon Seal all other O Rings Viton Not all port sizes available in all pump sizes see Catalog Section 450 for standard ports Ayton Aegistered trademark of the Phillips Petroleum Company Viton and Teflon Registered trademarks of the E L DuPont Company DANGER BEFORE OPENING ANY CORKEN PUMP LIQUID CHAMBER PUMPING CHAMBER RESERVOIR RELIEF VALVE ADJUSTING CAP FITTING ETC BE SURE 1 THAT ANY PRESSURE IN CHAMBER HAS BEEN COMPLETELY VENTED THROUGH SUCTION OR DISCHARGE LINES OR OTHER APPROPRIATE OPENINGS OR CONNECTIONS THAT THE DRIVING MEANS MOTOR TURBINE ENGINE ETC HAS BEEN LOCKED OUT OR MADE NON OPERATIONAL SO THAT IT CANNOT BE STARTED WHILE WORK IS BEING DONE ON PUMP THAT YOU KNOW WHAT LIQUID THE PUMP HAS BEEN HANDLING AND THE PRECAUTIONS NECESSARY TO SAFELY HANDLE THE LIQUID OBTAIN A MATE RIAL SAFETY DATA SHEET MSDS FOR THE LIQUID TO BE SURE THESE PRE CAUTIONS ARE UNDERSTOOD FAILURE TO FOLLOW THE ABOVE LISTED PRECAUTIONARY MEASURES MAY RESULT IN SERIOUS INJURY OR DEATH MAINTENANCE Corken Vane Pumps are designed for long troublefree service life under a wide variety of application conditions with a FIGURE 4 minimum of maintenance The points listed below will2. AS BEEN LOCKED OUT OR MADE NON OPERATIONAL SO THAT IT CANNOT BE STARTED WHILE WORK IS BEING DONE ON PUMP THAT YOU KNOW WHAT LIQUID THE PUMP HAS BEEN HANDLING AND THE PRECAUTIONS NECESSARY TO SAFELY HANDLE THE LIQUID OBTAIN A MATE RIAL SAFETY DATA SHEET MSDS FOR THE LIQUID TO BE SURE THESE PRE CAUTIONS ARE UNDERSTOOD FAILURE TO FOLLOW THE ABOVE LISTED PRECAUTIONARY MEASURES MAY RESULT IN SERIOUS INJURY OR DEATH Direction of Rotation FIGURE 6 A Sectional View Integral Reducer Units EAPSCREW SPLINED COUPLING LUG A QW AT Vaz xI Ma fo a L es Vin VAY la VRY SNAP RINGS FIGURE 7 ADAPTER PLATE SHAFT O RING N ROLLER BEARING SPIRAL RETAINER RING FIGURE 8 REMOVING VANES AND LINER Note To replace vanes and inspect the pump itis necessary to remove the bearing and seal from other end of pump Repeat steps 3 thru 9 10 Remove the head bolts and remove the head 11 Remove casing O ring 12 The endplate can be removed using a head bolt as a puller Inspect for wear BEARING CAP ADAPTER PLATE 13 Carefully take the rotor and shaft out of the pump 14 Remove vanes and pushrods from rotor CAUTION Vanes and pushrods will fali from bottom side of rotor Inspect T vanes and pushrods for wear Png RING E 15 Inspect endplate on other end of pump if worn remove head and replace or turn around The end plate is symmetri cal and c
3. MOVING GEAR REDUCER UNITS 1 On pumps equipped with Integral Reducer Units See Figure 7 the reducer can be removed by removing the four lugs which hold the reducer and mounting bracket to the drive end of the pump Set reducer aside 2 Remove the splined coupling and snap ring from the pump shaft REMOVING BEARINGS AND SEALS Since the bearings and seals are identical on each end of the Corken Vane Pumps the following steps would apply to either end for bearing or seal replacement See Figure 8 3 Remove the four capscrews and remove the bearing cap and grease seal Check condition of grease seal and re place if needed POPPET RELIEF VALVE SPRING ADJUSTING SCREW CAP LINER KEY CASING LINER INLET FLANGE MECHANICAL SEAL BEARING HOUSING Remove bearing housing from head Groove on outside diameter of bearing housing provides means to pry out bearing housing If difficulty is experienced remove head and drive out gently with a block of wood Check roller bearing and shaft for wear If necessary to replace remove spiral retaining ring and slide roller bearing from bearing housing Remove shaft 0 ring and discard it Never reuse an old O ring except in an emergency The adapter plate can be removed using a bearing cap bolt as a puller See Figure 9 Remove seal seat and seal seat O ring from adapter plate Remove adapter plate O ring from head Remove rotating member
4. TECHNICAL SERVICE MANUAL CORKEN VANE PUMPS SERIES CPBN CPBF CPGN amp CPGF CONTENTS MOMOM aniano ae cease sees N a 1 Model Number and Construction Codes 2 MalWNenanite sinccoscsainanaicsene wenn EEE E EEE 2 D NE a y EPT E E OE S T EAA 3 PESO E E AS A Mnaoaie wae 7 Pressure Relief Valve Instructions cece eens 8 INTRODUCTION The illustrations used in this manual are for identification pur FIGURE 1 a parts list from the factory or a Corken representative Always give a complete name of part part number and material with Ur a the model and serial number of the pump when ordering repair o parts The unmounted pump or unit model and serial number can be found on nameplate secured to the pump In the Corken Vane Pump model number system the basic series letters are combined with the size numbers to indicate the pump model size and construction A full description is shown on page 2 Figure 4 This manual deals only with Corken Vane Pump series CPBN CPBF CPGN and CPGF Refer to Figures 1 through 5 for general configuration and nomenclature used in this manual Pump specifications and recommendations are listed in Catalog Section IP SPECIAL INFORMATION FIGURE 2 SERIES CPBF Pumps Ductile Iron Externals size 1521 shown ROTATION Pump rotation direction is indicated by an arrow cast on the casing Pump should not be run in reverse rotation PRESSURE RELIEF VALVES 1 Van
5. an be turned to provide new wear surface FIGURE 9 16 Inspect casing liner for wear Casing liner can be removed by sliding it out either end of the casing 17 Thoroughly clean and inspect all parts for wear or damage DANGER and replace if necessary BEFORE STARTING PUMP BE SURE ALL DRIVE EQUIPMENT GUARDS ARE IN PLACE FAILURE TO PROPERLY MOUNT GUARDS MAY RESULT IN SERIOUS INJURY OR DEATH ASSEMBLY SLOT IN CARBON 1 Reinstall the liner The word outlet or discharge is cast on WASHER the outside of the liner Install liner with the word outlet or discharge toward the outlet part of the pump PLATE 2 Install three vanes in bottom of rotor holding in place with paim of your hand Because of the weight of the rotor and ANTI ROTATION io DRIVE PIN shaft on the larger pumps install end of rotor in casing liner PIN nN al ae IN SHAFT to help support the weight of the rotor Make sure the vanes are installed properly slots must face direction of rotation CARBON 3 Install the pushrods in from the top of the rotor while holding WASHER the vanes in place E12 4 Guide the rotor and shaft back into position in the casing and FIGUR liner INSTALLING MECHANICAL SEAL 5 Slide in the remaining three vanes from the end of the rotor making sure the slots are facing the direction of rotation See Figure 10 9 Install retainer assembly See Figs 11 12 and 13 Align notch on inside of retai
6. e Pump series CPBN and CPGN Cast Iron external pumps are standard with built in pressure relief valves Series CPBF and CPGF Ductile Iron external pumps are not available with an internal relief valve 2 Pumps not furnished with a relief valve must be provided with some means of pressure protection inline pressure relief valve torque limiting device etc 3 Pressure relief valves cannot be used to contro pump flow FIGURE 3 or regulate discharge pressure SERIES CPGN Unmounted Pumps with Integral Mounted Gear Reducer size 1021 shown CORKEN INC A Unit of IDEX Corporation P O Box 12338 Oklahoma City OK 73157 e Phone 405 946 5576 H CP CORKEN INDUSTRIAL PUMP SIZES AND VANE PUMP NOMINAL CAPACITIES 0521 100 GPM 950 RPM DESIGN TYPE 0724 155 GPM 950 RPM _ 1021 190 GPM 780 RPM B gener Bearing Mechanical Seal 1321 255GPM 780 RPM 15214 400GPM 780 RPM G Roller Bearing Seal Splined Extension for Integral B Size Reducer EXTERNALS AND PORTING N Cast Iron with NPT Ports F Ductile Iron with 300 Flanges VANE MATERIALS A Ryton Vanes with Solid Push Rods CORKEN VANE PUMP SERIES NUMBERS AVAILABILITY ND21R AMR T ron R Right Inlet Clockwise Rotation STANDAARD L Left Inlet Counter Clockwise Rotation PORT SIZES AVAILABILITY INLET AND OUTLET A xi E 2e xe J a x 214 B 2 x1 Fa2ve x2 K 3 x3 C 2 x2 G 3 x1 L 4 x3 D 214 x 112 H 3 x2
7. g CARBON 17 Slide bearing housing assembly into head See Figure 14 WASSER AK Locate the slot in bearing housing over the pin in back of seal seat If pin is not in slot the seal will not be properly GACKY ag a ROTOR O ANG positioned and wilt leak FIGURE 11 18 Install bearing cap with grease zerk on top on pS SEAT D RING SEAT ADAPTER PLATE FIGURE 14 19 Install the four bearing cap bolts and tighten Make sure pump still turns freely 20 Grease both roller bearings slowly with grease gun until grease comes out relief fitting A good grade of multi purpose lithium base grease NLGI 2 is recommended DANGER BEFORE STARTING PUMP BE SURE ALL DRIVE EQUIPMENT GUARDS ARE IN PLACE FAILURE TO PROPERLY MOUNT GUARDS MAY RESULT IN SERIOUS INJURY OR DEATH INTEGRAL REDUCER UNITS Refer to Figure 7 21 On pumps fitted with integral reducer the shaft snap ring and splined coupling shouid be installed on pump shaft 22 instali reducer and mounting bracket on pump Assemble reducer to pump using the four mounting lugs and capscrews 23 Pivot the reducer for desired center height with driver shaft and tighten mounting lugs 24 Align reducer and driver shafts Be sure reducer is filled with oil as noted on reducer nameplate PRESSURE RELIEF VALVE INSTRUCTIONS SETTING THE INTERNAL RELIEF VALVES Internal relief valves should be set to open at a higher pressure than external relief valve present in t
8. he system Internal relief valves are not available on CPBF or CPGF series pumps and some means of pressure protection inline pres sure relief valve torque limiting device etc must be provided CORKEN INC A Unit of IDEX Corporation P O Box 12338 Oklahoma City OK 73157 Phone 405 The internal relief valve is set at the factory at 125 psi 100 psi on sizes 1321 and 1521 Relief Valve adjustment See Figure 15 1 Remove the adjusting screw cap and gasket 2 Turn the adjusting screw clockwise to increase the pressure counter clockwise to decrease the pressure 3 Replace the cap and gasket Gasket Adjusting Screw Cap 5 N Adjusting Screw FIGURE 15 946 5576
9. help provide long service life LUBRICATION External lubrication must be applied slowly with a hand gun io all lubrication fittings every 500 hours of operations with multi purpose grease NLGI 2 Do not over grease Applications involving very high or low temperatures may require other types of lubrication Consult factory with specific lubrication questions CLEANING PUMP Keep pump as clean as possible This will facilitate inspection adjustment and repair work and help pre vent overlooking a dirt covered grease fitting STORAGE If pump is to be stored or not used for six months or more pump must be drained and a light coat of non detergent SAE 30 weight oil must be applied to all internal pump parts Lubricate fittings and apply grease to pump shaft extension Corken suggests rotating pump shaft by hand one complete revolution every 30 days to circulate the oil SUGGESTED REPAIR TOOLS The following tools must be available to properly repair Corken Vane Pumps These tools are in addition to standard mechanics tools such as open end wrenches pliers screw drivers etc Most of the items can be obtained from an industrial supply house 1 Soft face hammer 2 Snap ring pliers for Integral Gear Reducer 3 Allen wrench 4 Arbor press OUTLET FLANGE CASING ENDPLATE ROTOR VANE ROLLER BEARING LIPSEAL SHAFT BN 4 BEARING CAP HEAD FIGURE 5 Cutaway View Corken Vane Pump DISASSEMBLY RE
10. ner assembly with drive pin on shaft Be sure retainer assembly is aligned with drive pin and is pushed up against step on shaft NOTE SLOTS MUST ERGE 10 Lubricate the carbon washer O ring and shaft Align the two grooves in carbon washer with the drive indentation in the retainer assembly and gently slide into place OPTIONAL TEFLON SEAL The teflon seal is the same except for the elastomers After lubricating the teflon seal ring install carbon washer and teflon seal ring as shown in Figure 13 Direction FIGURE 10 of Rotation INSTALL TOWARD RETAINER ASSEMBLY NOTE The following assembly steps apply to both ends of the vane pump 6 Install end plate The end plate is symmetrical and can be turned to provide a new wear surface WASHER 7 Place new casing O ring on head and install making sure vent connection is located down FIGURE 13 8 Install and tighten head bolts making sure rotor still turns freely 11 Oil and insert new adapter plate O ring into pump head 12 Oil and insert new O ring on the seal seat 13 Install seal seat into adapter plate Be sure seal seat and carbon washer are clean Lubricate both lapped faces with WATCH ALIGNMENTS clean oil A AND B px 14 Install adapter plate assembly into pump head 15 Place shaft O ring on shaft NOTCH ENEN P ROA F ay 16 Slide new roller bearing into bearing housing Install spiral ee ye retainer ring into groove of bearing housin
11. of seal from shaft If you are only replacing the seal at this time go on to Step 9 of assembly PUMP PARTS MODELS CPBN 0521 CPBN 0721 CPBN 1021 CPBN 1321 CPBN 1521 ouT Note Gasket or O Ring as Req d 1 Direction of Rotation See Relief Valve Detail Relief Valve Detail 051 44 45 46 47 ag 9 5051 44 Ka Parts Identification Use for Figures 6 and 6 A eM DESCRIPTION m oes em escmpmo 1 Casing 2 Casing Liner 23 Adapter Plate 48 Poppet i i 3 Rotor and Shaft Assembly 24A Bearing Cap 49 Adjusting Screw Cap 4 Endplate 26 Grease Zerk 50 Gasket i 5 Head 28 Relief Fitting 51 Adjusting Screw O 5A Head Capscrews 29 Grease Seal 52 Capscrews for Relief Valve __ FIGURE 6 6 7 Pushrods 35 Flanges 8B Retief Fitting 9 Mechanical Seal complete Flange Gasket Pipe Plug 18 O ring adapter plate 44 Relief Valve Cover 143 20 Bearing Housing 45 Relief Valve O ring rs ee 21 Roller Bearing Spring Guide a PUMP PARTS MODELS CPBF 0721 CPBF 1021 CPBF 1521 DANGER BEFORE OPENING ANY CORKEN PUMP LIQUID CHAMBER PUMPING CHAMBER RESERVOIR RELIEF VALVE ADJUSTING CAP FITTING ETC BE SURE 1 THAT ANY PRESSURE IN CHAMBER HAS BEEN COMPLETELY VENTED THROUGH SUCTION OR DISCHARGE LINES OR OTHER APPROPRIATE OPENINGS OR CONNECTIONS THAT THE DRIVING MEANS MOTOR TURBINE ENGINE ETC H
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