TECHNICAL SERVICE MANUAL
Contents
1. 70 microns 50X250 Mesh available through 4 3 Temperatures below 40 F or above 400 F 4 High system pressure applications See Table A Page 2 5 High basket differential pressure See Table A Determine and exercise necessary precautions before removing the lid involving fluids which are POISONOUS OR TOXIC FLAMMABLE HARMFUL TO FACE OR HANDS HOT Liquids containing boiling water 212 F at sea level can produce steam extra care to properly vent strainer must be exercised ENTRAINED WITH AIR Trapped pressurized air under lid can lift the lid suddenly and violently if the lid is rotated Be the sure system is completely vented DO NOT ATTEMPT TO VENT THE SYSTEM BY TURNING THE LID VIKING PUMP INC A Unit of IDEX Corporation Cedar Falls IA 50613 USA strainer size p ejeje o o Basket Clearance Required from port centerline Maximum Basket Differential Pressure PSID Maximum System 200 Pressure PSIG 175 PSI on liquid temperature below 150 F TABLE A INSTALLATION Strainers should be placed ahead of any equipment needing protection The mesh size used in the strainer body should be only as small as required to protect the equipment This will minimize the pressure drop through the strainer For pump protection locate the strainer on suction side of the pump Proper sizing of the strainer and basket mesh can prevent the pump from cavitating due to exce2. Reinsert the thumbscrew Reinstall the drain plug if removed or close the drain valve if installed 6 Before starting up the system make sure to open all valves that were closed for servicing After starting up the system check for any possible leaks If there is any leakage around the lid return to Disassembly Remove the lid and refer to Trouble Shooting page 4 for possible causes of leakage NOTE When installing a new o ring it is recommended that the o ring be lubricated with grease before installing onto the lid DANGER Before starting the system be sure the lid is turned to the proper position and the thumbscrew is installed to prevent the lid from turning FIGURE 2 O RING INFORMATION Proper application and use of the o ring elastomer will affect the ease of lid removal and the life of the o ring Compatibility of the elastomer with the fluid s at operating temperature extremes is essential and Table B lists suitability for several o ring elastomers along with Viking s means of identification If an o ring is incompatible with a fluid excessive o ring swell or contraction might result and or properties of the elastomer may change reducing the satisfactory performance life of the o ring Included in Table B is a general list of fluids that Parker s O Ring Manual does and does not recommend for specific elastomers Obviously if an o ring should swell sealing will be enhanced between lid
3. of shipment from Viking UNDER NO CIRCUMSTANCES SHALL VIKING BE LIABLE UNDER THIS WARRANTY OR OTHERWISE FOR SPECIAL INCIDENTAL INDIRECT CONSEQUENTIAL OR PUNITIVE DAMAGES OF ANY KIND INCLUDING BUT NOT LIMITED TO LOST OR UNREALIZED SALES REVENUES PROFITS INCOME COST SAVINGS OR BUSINESS LOST OR UNREALIZED CONTRACTS LOSS OF GOODWILL DAMAGE TO REPUTATION LOSS OF PROPERTY LOSS OF INFORMATION OR DATA LOSS OF PRODUCTION DOWNTIME OR INCREASED COSTS IN CONNECTION WITH ANY PRODUCT EVEN IF VIKING HAS BEEN ADVISED OR PLACED ON NOTICE OF THE POSSIBILITY OF SUCH DAMAGES AND NOTWITHSTANDING THE FAILURE OF ANY ESSENTIAL PURPOSE OF ANY PRODUCT THIS WARRANTY IS AND SHALL BE VIKING S SOLE AND EXCLUSIVE WARRANTY AND SHALL BE IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ALL WARRANTIES OF MERCHANTABILITY FITNESS FORA PARTICULAR PURPOSE AND NON INFRINGEMENT ALL OF WHICH OTHER WARRANTIES ARE EXPRESSLY EXCLUDED See complete warranty at www vikingpump com FLUID amp METERING VIKING PUMP INC e A Unit of IDEX Corporation Cedar Falls IA50613USA rane reneged PMS
4. pumping 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 maintenance is being preformed That you know what liquid the strainer has been handling and the necessary precautions to safely handle the liquid Obtain a Material Safety Data Sheet MSDS for the liquid to be sure these precautions are understood Failure to follow above listed precautionary measures may result in serious injury or death IBER FLUID amp METERING SECTION TSM 640 PAGE 1 LID EASE SIMPLEX ISSUE E STRAINER BASKET THUMBSCREW STRAINER BODY FIGURE 1 such as rags weld beads or bolts Filters are intended to capture very small particles Lid sealing is accomplished with one o ring therefore proper application of o ring is essential The o ring must be acceptable for the temperature limits of the system as well as compatible with the fluid being strained Misapplication may result in o ring swell making lid removal difficult or premature o ring failure causing strainer leakage Viking does not recommend using Lid Ease Strainers for the following applications 1 Fluids having vapor pressure higher than one atmosphere either at room temperature or operating temperature 2 Straining of particles finer than
5. Electronic copies of the most current TSM issue can be found on the Viking Pump website at www vikingpump com TECHNICAL SERVICE MANUAL IN LINE BASKET TYPE STRAINERS CONTENTS MIMTFOGDUCUON See fos Hoses E E E E 1 CONTEMS ossiscs ices E eee iid enepait eer 1 Special Information ccccccececceeeeeeeeeeeeeeeeseneaeeeeees 1 Installation oe c eee cee cecenee cece eeeaeeeeeeeeceeeeeeeeeeeeeeeeeeeea 2 DISASSEMDN csi n a raaa 2 ASSOMDI srira aieia 2 Assembly Cont sseeeiieeriiesissriresriresrrnesrresrrnss 3 O ring NformatiON seini iaiteriosisgaa kanaa 3 Aere a a E E A tesescnend otabgencd oaeesce dae 4 INTRODUCTION This bulletin deals exclusively with Viking Lid Ease Basket Type Strainers When ordering parts be sure to give complete part name serial number and model number cast on body below serialized nameplate The basket mesh size is stamped on the basket handle and the o ring construction can be identified with a Viking color code listed under O Ring Information Use of basket strainers can avoid costly failures and increase the life of the equipment Proper use of strainer can minimize down time A definition for strainers is a coarse filter Strainers are typically intended to trap larger foreign objects SPECIAL INFORMATION DANGER Before opening any Viking product Strainer pumping chamber reservoir relief valve adjusting screw cap etc be sure 1 That any pressure in the strainer or
6. and body but would make the lid difficult to remove Conversely o ring shrinkage will reduce sealing and possibly cause a leak Several good sources are available covering o ring compatibility These include o ring manufacturers literature Viking Pump s Liquid List Viking s Application Department manufacturers of other components in the system and previous experience Generally it is best to have an extra o ring on hand when removing the lid Once the lid has been removed if any swelling has occurred reinstalling the lid with the existing o ring will be difficult if not impossible and may require another o ring Once o ring dries out it can sometimes be used again PTFE Derivative Encapsulated o rings generally do not swell Do not attempt to reuse this type of o ring if it has been removed Immerse a new o ring in boiling water for a few minutes Remove from the water and stretch out the o ring so it will fit onto the casing hub of the lid without forcing it over a sharp edge Run hot water over the o ring until it shrinks down tight into the groove of lid TABLE B O RING SELECTION VIKING TEMPERATURE LIMIT LIQUIDS TYPE OF ELASTOMER IDENTIFICATION LIMIT F RECOMMENDED NOT RECOMMENDED BUNA NO DOT 20 TO 225 Petroleum oils and fluids Silicone greases amp oils Ethylene glycol base General purpose sealing VITON GREEN DOT 15 TO 400 Petroleum oils Di Ester base lubricant Silicone fluids amp grease Halogenate
7. be accomplished either by supporting the flanges or providing a base for the bottom of the strainer Lid removal for maintenance will be much easier if the top of the strainer is not over 3 feet off the ground In the event that the strainer is not at highest point in the system valves are recommended on both sides of strainer to prevent the strainer from filling up while cleaning the basket As the basket becomes clogged with foreign matter differential pressure will rise Table A shows maximum pressure differential allowable across the basket If this pressure is exceeded damage to the basket may occur A good way to indicate when basket must be cleaned is to 1 SECTION TSM 640 ISSUE F PAGE 2 OF 4 Install a pressure differential gauge or 2 install a pressure gauge on each side of the strainer NOTE Strainers located on the discharge side of the pump must have a safety relief valve between the pump and the strainer set no higher than the strainer s maximum system pressure see Table A DISASSEMBLY NOTE Before removing the lid to clean the basket make sure that you have a spare o ring in the event that the fluid being strained has caused the o ring to swell DANGER Before opening any Viking product Strainer pumping chamber reservoir relief valve adjusting screw cap etc be sure 1 That any pressure in the strainer or pumping chamber has been completely vented through suction or discharge lines or other approp
8. d hydrocarbon Selected phosphate ester acids Halogenated hydrocarbon Nitro hydrocarbon Phosphate ester Ketones Ozone Automotive break fluid Ketones Skydrol Amines Low molecular weight esters amp ethers Hot hydrofluoric or chlorosulfonic acids Petroleum Oil Di Ester base lubricant Dilute alkalies Ketones Alcohol ETHYLENE PROPYLENE ORANGE DOT 65 TO 300 Water RUBBER Dilute Acids SANITARY PTFE DERIVATIVE NO DOT ORANGE STANDARD ENCAPSULATED CORE 40 TO 300 NO DOT HIGH TEMP PURPLE CORE 40 TO 400 Most solvents amp chemicals Consult factory if unsure about compatibility Molten alkali metals Fluorine and strong fluorinating agents Temperatures listed are for static seal applications only for the Lid Ease Simplex strainer line Source Parker O Ring Handbook except for PTFE Derivative Encapsulated SECTION TSM 640 ISSUE F PAGE 3 OF 4 TECHNICAL SERVICE MANUAL section tsm 640 PAGE 4 ISSUE F TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTIONS The Lid is difficult 1 The system is under pressure 1 Relieve the pressure on 2 The o ring is swollen 2 Check compatibility of the o ring with the fluid and temperature 3 The fluid inside is sticky or solid 3 a Remove the lid before liquid solidifies b May require heat tape and insulation around body The lid is difficult to 4 The o ring is swollen 4 Replace with a new o ring or a different more compatible o
9. riate openings or connections 2 That the driving means motor turbine engine etc has been Locked Out or made non operational so that it cannot be started while maintenance is being preformed 3 That you know what liquid the strainer has been handling and the necessary precautions to safely handle the liquid Obtain a Material Safety Data Sheet MSDS for the liquid to be sure these precautions are understood Failure to follow above listed precautionary measures may result in serious injury or death 1 Remove the thumbscrew from top of lid 2 Rotate the weatherseal lid counter clockwise until the pin hits and stops The lid features an internal pin which locates the on and off positions Raise up the lid 4 Remove the basket and clean Do not strike the basket to clean it out this could deform the basket side or lip and decrease the strainers effectiveness Avoid using a sharp object such as a screwdriver which could puncture the mesh To clean the basket use a small brush or compressed air ASSEMBLY 1 Place basket into strainer body 2 Reinstall the lid with the tab of the lid just to the left of the boss with the threaded hole on the body See fig 2 NOTE Do not attempt to install the lid if the strainer has filled up drain before installing the lid Press down on the lid firmly and evenly until it pops into place ASSEMBLY Cont 3 Rotate the lid clockwise until the two holes line up 4
10. ring material install 5 The o ring is not lubricated Lubricate the o ring with grease or a suitable lubricant 5 6 There is too much fluid in the body 6 Drain out the fluid leaving more air in the body before installing the lid 7 Fluid leaks around 7 The o ring is cut Replace the o ring never try to install a cut o ring the top of the strai RAOR ME SEANS 8 There is foreign material under the o ring Remove amp clean the o ring groove in lid amp body o ring seat Reinstall making sure to lubricate the o ring 9 The o ring has shrunk 9 Select a compatible o ring material There is excessive 10 The basket is filled with contaminants 10 Clean the basket more frequently d Pressure crop 11 The basket mesh is too fine 11 Check the pressure drop curves A larger strainer or a larger mesh basket may be required 12 The viscosity is too high 12 Increase the strainer unit size or use a larger mesh basket VIKING PUMP WARRANTY IBEX Viking warrants all products manufactured by it to be free from defects in workmanship or material for a period of one 1 year from date of startup provided that in no event shall this warranty extend more than eighteen 18 months from the date of shipment from Viking The warranty period for Universal Seal series pumps ONLY Universal Seal models listed below is three 3 years from date of startup provided that in no event shall this warranty extend more than forty two 42 months from the date
11. ssive pressure drop across the strainer There are several factors which influence pressure drop such as viscosity of fluid percentage and size of particles or contaminants and frequency of cleaning If the liquid contains undesirable ferrous particles magnetic inserts can be added to the baskets to help remove these particles A second strainer or filter located on discharge side of pump may be desirable to protect other equipment in the system which requires a smaller mesh basket for finer straining of the liquid A basket with a smaller mesh opening the higher the mesh number the smaller the opening in the mesh can be permitted on the discharge side because pressure drop is less critical Maximum differential pressures allowable across strainers are listed in Table A Locate the strainer in a position where the drain plug can be easily removed Replace the plug with a drain valve for frequent maintenance Provide adequate space above the strainer for basket removal as listed in table A The Lid Ease strainer has cast arrows on the body to indicate the direction fluid must flow These strainers are not designed for any type of backwash operation NOTE Mounting the strainer with ports in a vertical position is NOT recommended because of increased difficulty during servicing For the larger strainers additional external support of the strainer may be required to reduce pipe strain in the system This can
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