PLV-1000 manual REV 1.00 100810
Contents
1. position is when the ball valve handle is perpendicular across the ball valve body 4 Resin pressure in the resin pump can be eliminated by rotating the ball valve on the resin filter 90 degrees to the open or on position Place a container under the ball valve to catch any resin that is ejected out of the valve 3 2 Grounding Grounding an object means providing an adeguate path for the flow of the electrical charge from the object to the ground An adeguate path is one that permits charge to flow from the object fast enough that it will not accumulate to the extent that a spark can be formed It is not possible to define exactly what will be an adeguate path under all conditions since it depends on many variables In any event the grounding means should have the lowest possible electrical resistance Grounding straps should be installed on all loose conductive objects in the spraying area This includes material containers and equipment Magnum Venus Plastech recommends grounding straps be made of AWG No 18 stranded wire as a minimum and the larger wire be used where possible NFPA Bulletin No77 states that the electrical resistance of such a leakage path may be as low as 1 meg ohm 10 ohms but that resistance as high as 10 000 meg ohms will produce an adequate leakage path in some cases Whenever flammable or combustible liquids are transferred from one container to another or from one container to the equipment both containers or co2. 1000 from the unit and take it to a work area for maintenance PLV 1000 DISASSEMBLY PROCEDURE Remove the Spring Housing from the Valve Body assembly Fig 3 0 D i FIG 3 0 Remove the Spring Retainer Spring and O ring from the Valve Body FIG 3 1 FIG 3 1 MAINTAINENCE AND REPAIR MANUAL PLV 1000 Place an Allen wrench into the top of the Poppet Stem and using a wrench remove the Poppet nut FIG 3 2 FIG 3 2 Remove the O ring from the Poppet Stem FIG 3 3 FIG 3 3 Using a small pick or dental tool remove the Retaining Ring and the Seal Retainer FIG 3 4 FIG 3 4 MAGNUM VENUS PLASTECH REV 1 00 APRIL 2010 PAGE 19 MAINTAINENCE AND REPAIR MANUAL PLV 1000 Remove the 2 Seal Assemblies and the Needle guide from the Valve Body FIG 3 5 FIG 3 5 MAGNUM VENUS PLASTECH REV 1 00 APRIL 2010 PAGE 20 CHAPTER 4 Cleaning and Inspection PARTS CLEANING Determine which parts are going to be reused and then discard the rest All parts can be cleaned in most solvents it is advisable not to let plastic parts soak for a long period of time Using a wire brush thoroughly clean all threads and remove residue from all components PARTS INSPECTION Visually inspect all parts paying special attention to make sure the Poppet Stem and Seal Retainer are not bent or damaged PLV 1000 MAINTAINENCE AND REPAIR MANUAL CHAPTER 5 Assembly Assembly of the PLV
3. 1000 is opposite the disassembly procedure above Having a clean and organized work area is helpful VALVE BODY ASSEMBLY Place the Needle guide and the 2 Seal Assemblies into the Valve body Using the dowel tap the Needle Guide and Seal Assemblies into the Valve Body FIG 4 1 FIG 4 1 Install the Seal Retainer and the Retaining Ring making sure the Retaining ring is seated into the groove in the Valve Body FIG 4 2 MAGNUM VENUS PLASTECH REV 1 00 APRIL 2010 PAGE 22 MAINTAINENCE AND REPAIR MANUAL PLV 1000 Install a new O ring on to the Poppet Stem and insert the Poppet Stem into the Valve Body Make sure the Poppet Stem moves freely in the Valve Body FIG 4 3 Place 1 2 drops of thread lock on the Piston Body threads then using the correct Allen wrench install the Poppet nut FIG 4 4 FIG 4 4 Install O ring onto the Valve Body assembly Insert Spring and Spring Retainer and replace the Spring Housing FIG 4 5 FIG 4 5 MAGNUM VENUS PLASTECH REV 1 00 APRIL 2010 PAGE 23 CHAPTER 6 Installation e Before installing the PLV 1000 move the Poppet assembly up and down a few times by manually pushing on the Poppet nut e Making sure that a good thread sealer has been applied to the threads and replace the PLV 1000 back into the manifold or fitting that it was removed from e Replace the Y or TEE fitting that was removed from the top e install the pne
4. EE Ee y x Ni gt k cih a i k FLUID PRESSURE w FLUID PRESSURE Pie z Pia de RR INES A SE ME _ EE HE HE en nn A EE A mm mi MAGNUM VENUS PLASTECH REV 1 00 APRIL 2010 PAGE 16 As you disassemble the eguipment lay out the components in the correct order and direction and have all current component drawings available to refer to prior to disassembly This will help in the reassembly Please contact your local MVP Distributor for current drawings ITEMS AND TOOLS NEEDED Va wooden dowel 6 Set of open end wrenches Pliers Wire brush Table mounted soft jawed viSe Semi Permanent Loctite Blue or eguivalent liguid thread lock Parts for servicing o Note Because of the simplicity of this component there is no designated rebuild kit When servicing the PLV 1000 the seals and o rings should be replaced at a minimum The other parts should be inspected for wear and damage and replaced as necessary CHAPTER 3 Disassembly REMOVAL OF PLV 1000 e Caution When removing PLV 1000 be sure to release fluid pressure from the system before removing System may be under pressure and could cause injury e Set operating pressure at 0 psi e Open recirculation valve and or gun to purge pressure from fluid sections Let drain until as much fluid as possible has been purged e Remove the pneumatic signal lines from the top of the PLV 1000 and remove the air fitting You can now remove the PLV
5. eguipment This manual outlines procedures to be followed in conducting polyester operations safety This system has been specifically designed for use of Polyester Resin Gel Coat and Methyl Ethyl Ketone Peroxides MEKP applications Other formulations or blends considered for use in this eguipment is strictly prohibited without the expressed consent by Magnum Venus Plastech Inc Magnum Venus Plastech cannot eliminate every danger nor foresee every circumstance that might cause an injury during eguipment operation Some risks such as the high pressure liguid stream that exits the spray tip are inherent to the nature of the machine operation and are necessary to the process in order to manufacture the end product For this reason ALL personnel involved in polyester operations should read and understand the Safety Manual It is very important for the safety of employees involved in the operation that eguipment operators maintenance and supervisory personnel understand the requirements for safe operation Each user should examine his own operation develop his own safety program and be assured that his equipment operators follow correct procedures Magnum Venus Plastech hopes that this manual is helpful to the user and recommends that the precautions in this manual be included in any such program Magnum Venus Plastech recommends this Safety Manual remain on your equipment at all times for your personnel safety In addition to the manual Magnum Venus Pla
6. that arise in your development of safe procedures 1 2 Personal Safety Eguipment Magnum Venus Plastech recommends the following Personal Safety Eguipment for conducting safe operations of the Polyester Systems Magnum Venus Plastech recommends that the user consult the state and local regulations established for all Safety eguipment listed 2 0 Material Safety 2 1 Hazards Associated with Laminating Operations The major hazards which should be guarded against in polyester laminating operations are those associated with 1 The flammability and explosion dangers of the catalyst normally used Methyl Ethyl Ketone Peroxide MEKP 2 The flammability dangers of clean up solvents sometimes used Magnum Venus Plastech recommends that clean up solvents be non flammable and of resin diluents used such as styrene 3 The flammability dangers of catalyst diluents if used Magnum Venus Plastech recommends that catalyst not be diluted 4 The flammability dangers of the uncured liguid resins used 5 The combustibility dangers of the cured laminate accumulations of over spray and laminate sandings 6 The toxicity dangers of all the chemicals used in laminating operations with respect to ingestion inhalation and skin and eye hazards 2 2 Catalyst Methyl Ethyl Ketone Peroxide MEKP is among the more hazardous materials found in commercial channels The safe handling of the unstable reactive chemicals presents a defini
7. 12 000 psi per second for an explosion of 12 acetylene and air The maximum value listed for a hydrogen explosion is 10 000 psi per second Some forms of MEKP if allowed to reach their SADT will burst even an open topped container This suggests that it is not possible to design a relief valve to vent this order of magnitude of pressure rate of rise The user should be aware that any closed container be it a pressure vessel surge chamber or pressure accumulator could explode under certain conditions There is no engineering substitute for care by the user in handling organic peroxide catalysts If at any time the pressure relieve valve on top of the catalyst tank should vent the area should be evacuated at once and the fire department called The venting could be the first indication of a heat and therefore pressure build up that could eventually lead to an explosion Moreover if a catalyst tank is sufficiently full when the pressure relief valve vents some catalyst may spray out which could cause eye injury For this reason and many others anyone whose job puts them in an area where this vented spray might go should always wear full eye protection even when laminating operations are not taking place Safety in handling MEKP depends to a great extent on employee education proper safety instructions and safe use of the chemicals and eguipment Workers should be thoroughly informed of the hazards that may result form improper handling of MEK
8. ER 2 Getting Started Eddie de N Ad a a de en Add ee Rd AE 15 THEORY OF OPERATION EE nana 15 ITEMS AND TOOLS NEEDED e nana 17 GHAPTER S DISASSEMDLY uniji dae ee sd ee ee a 18 REMOVAL OF INS 18 PLV 1000 DISASSEMBLY PROCEDURE e nana 18 CHAPTER 4 Cleaning and Inspection sesse ee ee EER RR ER RR EER E Gee ee ee RR EE EE EE 21 PARTS CLEANING ee ee ee ee ee ee ee ee ee ee ee ee Re ee ee Re ee ee RA ee ee AR Re ee ee RA ee ee Re ee ee Re ee ee Re ee ee ee ee ee 21 PARTS INSPECTION iese ee ees ee ee ee ee ee ee Re ee ee Re ee ee RA ee ee AR Re ee ee RA ee ee Re ee ee RR ee ee Re ee ee ke ee ee ee 21 GHAPTER 6 A sen DIV ie seel sie su ede ei Se add de 22 VALVE BODY ASSEMBEY Sora trar reden Ee BEE oe Ee De Di Gee DE tai 22 CHAPTER 6 Anstallalign se ee ee ee Ge ee ee ee EG ee ae eN ek ae EE ede 24 CHAPTER 7 System Start Up Troubleshooting sesse ees ee ee EE EE RE EE EE EE 24 CHAPTER 8 Assembly Drawings nana ER RR EER E Ee ee Re RR RE EER 25 MAINTAINENCE AND REPAIR MANUAL PLV 1000 MAGNUM VENUS PLASTECH REV 1 00 APRIL 2010 PAGE 4 CHAPTER 1 Safety and Warning Information Operating Your Polyester System Safely 1 Introduction Any tool if used improperly can be dangerous Safety is ultimately the responsibility of those using the tool In like manner safe operation of polyester processes is the responsibility of those who use such processes and those who operate the
9. MAINTAINENCE AND REPAIR MANUAL PLV 1000 NSS MVlAGNUM ENUS FLASTECH PRESSURE LIMIT VALVE Maintenance amp Repair Manual Model numbers PL V 1000 MAGNUM VENUS PLASTECH REV 1 00 APRIL 2010 PAGE 1 MAINTAINENCE AND REPAIR MANUAL PLV 1000 MAGNUM VENUS PLASTECH REV 1 00 APRIL 2010 PAGE 2 TABLE OF CONTENTS CHAPTER 1 Safety and Warning Information e nena 5 Operating Your Polyester System Safely see RR ee AR RA ee ee ee RR RA ee ee ee ee RR ee ee ee ee 5 ieke Mee AA 5 1 2 Personal Safety Eguipmen iese ees ees ee ee ee ee RA ee ee ee RR RA ee ee ee ee ee AA ee ee ee ee ee 6 2 1 Hazards Associated with Laminating Operations 6 2 2 Catalyst Methyl Ethyl Ketone Peroxide ooooooccccnnnconccccocccccnccconanonnncccncncnnnnnnrrn conc nnnnnnnnarr anno 7 2 3 Clean Up Solvents and Resin Diluents iii RA RR RA cnn cnn cra nana nn 8 2 4 Gdlalyst A A ae cance EA EE EE 10 2 5 Cured Laminate Overspray and Laminate Sandings Accumulation 10 2 7 Toxicity of Chemicals ee RA ee AR RA ee ee AR RR ee ee ee n nn rn naar 10 2 8 Treatment of Chemical INjurieS ooooocnnnconicicinnnnnnnccnonccnnnncnnnnnonrnn ee ee ee GR AA ee ee ee ee RR ee ee ee 11 3 0 Equipment Safety AAA nenne eent 12 3 1 Emergency Stop ProcedureS iis ee ee ee ee Re ee ee ee AR RA ee ee ee ee AR RR AA ee ee ee ee ee ee 12 ae RE ER EE EE EE EE 13 CHAPT
10. P especially in regards to contamination heat friction and impact They should be thoroughly instructed regarding the proper action to be taken in the storage use and disposal of MEKP and other hazardous materials used in the laminating operation In addition users should make every effort to A Store MEKP in a cool dry place in original containers away from direct sunlight and away from other chemicals B Keep MEKP away from heat sparks and open flames C Prevent contamination of MEKP with other materials including polyester over spray and sandings polymerization accelerators and promoters brass aluminum and non stainless steels D Never add MEKP to anything that is hot since explosive decomposition may result E Avoid contact with skin eyes and clothing Protective eguipment should be worn at all times During clean up of spilled MEKP personal safety eguipment gloves and eye protection must be worn Fire fighting equipment should be at hand and ready F Avoid spillage which can heat up to the point of self ignition G Repair any leaks discovered in the catalyst system immediately and clean up the leaked catalyst at once in accordance with the catalyst manufacturer s instructions H Use only original eguipment or eguivalent parts from Magnum Venus Plastech in the catalyst system i e hoses fitting etc because a dangerous chemical reaction may result between substituted parts and MEKP Catalyst accumulate
11. RNING Contact your doctor immediately in the event of any injury and give him the information you have collected If your information includes first aid instructions administer first aid immediately while you are contacting your doctor Fast treatment of the outer skin and eyes that contact such chemicals generally includes immediate and thorough washing of the exposed skin and immediate and continuous flushing of the eyes with lots of clean water for at least 15 minutes or more These general instructions of first aid treatment however may be incorrect for some chemicals that is why you must know the chemicals and treatment before an accident occurs Treatment for swallowing a chemical freguently depends upon the nature of the chemical NOTE Refer to your System User Manual for complete and detailed operating instructions and service information 3 0 Eguipment Safety WARNING Magnum Venus Plastech suggest that personal safety equipment such as EYE GOGGLES GLOVES EAR PROTECTION and RESPIRATORS be worn when servicing or operating this eguipment Ear protection should be worn when operating a fiberglass chopper to protect against hearing loss since noise levels can be as high as 116 dB decibels This eguipment should only be operated or serviced by technically trained personnel WARNING Never place fingers hands or any body part near or directly in front of the spray gun fluid tip The force of the liguid as it exits the spray tip
12. Under normal operating conditions the PLV 1000 should be a low or maintenance free component for the end user The PLV 1000 is normally plugged directly into a TEE or Y in the output fluid line or into a manifold On the top of the PLV 1000 a control signal is plumbed into one side of a tee or y fitting and passed through to a control valve or switch Under normal operating pressures the PLV 1000 is closed and forces the control signal thru to the control valve or switch FIG 1 0 Pi TERTE GOETE TT de Ha TH ORE PL WA IT DA E REVIJI Hy Pe Ed MT Vodi DORPER A Pad When the fluid pressure reaches around 2500 2700 psi the poppet assembly will move off the Valve Body Seat This will allow the control signal to escape the Valve Body and vent to atmosphere instead of activating the control valve or switch FIG 2 0 al PRSTE OORT ce Rd Zla arija LE A core Geo ma atir gro N ee ef E Fi 4 K N a e E Hd FLUID PRESSURE FIG 2 0 MAGNUM VENUS PLASTECH REV 1 00 APRIL 2010 PAGE 15 MAINTAINENCE AND REPAIR MANUAL PLV 1000 When two PLV 1000 s are used The control signal is hooked in series with the same theory of operation If either of the PLV 1000 s senses fluid overpressure then the control signal is vented to atmosphere FIG 2 1 Pin dpa TE Emina sa al ad ori PO CANTERA Ede ahd de PERE ELE tb 3 j CA HEEL Tedi DO Eie Oe Ted d DEAT ARE AO ALLOA Ted DOM TED TEG TEL MET
13. acturing Sales 5148 113 Ave 1862 Ives Ave Clearwater FL 33760 USA Kent WA 98032 USA Ph 727 573 2955 Ph 253 854 2660 Fax 727 571 3636 Fax 253 854 1666 E mail info mvpind com Web www mvpind com MAGNUM VENUS PLASTECH REV 1 00 APRIL 2010 PAGE 27
14. ally more hazardous since each drop contains a higher concentration of catalyst and therefore will react guicker with over spray and the leak 2 5 Cured Laminate Overspray and Laminate Sandings Accumulation A Remove all accumulations of overspray FRP sandings etc from the building as they occur If this waste is allowed to build up spillage of catalyst is more likely to start a fire in addition the fire would burn hotter and longer B Floor coverings if used should be non combustible C Spilled or leaked catalyst may cause a fire if it comes in contact with an FRP product over sprayed chop or resin FRP sandings or any other material with MEKP To prevent this spillage and leakage you should 1 Maintain your Magnum Venus Plastech System Check the gun several times daily for catalyst and resin packing or valve leaks REPAIR ALL LEAKS IMMEDIATELY 2 Never leave the gun hanging over or lying inside the mold A catalyst leak in this situation would certainly damage the part possibly the mold and may cause a fire 3 Inspect resin and catalyst hoses daily for wear or stress at the entry and exits of the boom sections and at the hose and fittings Replace if wear or weakness is evident or suspected 4 Arrange the hoses and fiberglass roving guides so that the fiberglass strands DO NOT rub against any of the hoses at any point If allowed to rub the hose will be cut through causing a hazardous leakage of material which co
15. can cause serious injury by shooting liguid through the skin NEVER LOOK DIRECTLY INTO THE GUN SPRAY TIP OR POINT THE GUN AT OR NEAR ANOTHER PERSON TREAT THE GUN AS IF IT WERE A LOADED PISTOL 3 1 Emergency Stop Procedures The following steps should be followed in order to stop the machinery in an emergency situation 1 The ball valve located where the air enters the power head of the resin pump should be moved to the OFF or closed position To do this simply rotate the lever on the ball valve 90 degrees Doing this will cause all the system air to bleed out of the system in a matter of a few seconds making the system incapable of operating NOTE Step 2 is a precautionary step and should be followed whenever the above mentioned ball valve is activated to the stop mode Failure to do so can damage the regulators and components on reactivating to the ON position 2 Turn all system regulators to the OFF position counter clockwise position NOTE Verify that the Catalyst relief line located on the catalyst manifold and the resin return line located on the resin filter are secured relieving catalyst and resin fluid pressure 3 Catalyst pressure in the catalyst pump can be eliminated by rotating the ball valve on the catalyst manifold 90 degrees to the open or on position Note The open or on position is when the ball valve handle is parallel in line with the ball valve body The closed or off
16. d The user should not assume that all safety measures are indicated or that other measures are not required DANGER Contaminated catalyst may cause Fire or Explosion Before working on the catalyst pump or catalyst accumulator wash hands and tools thoroughly Be sure work area is free of dirt grease or resin Clean catalyst system components with clean water only DANGER Eye skin and respiration hazard The Catalyst MEKP may cause blindness skin irritation or breathing difficulty Keep hands away from face Keep food and drink away from work area WARNING Please refer to your catalyst manufacturer s safety information regarding the safe handling and storage of catalyst Wear appropriate safety equipment as recommended MAINTAINENCE AND REPAIR MANUAL PLV 1000 MAGNUM VENUS PLASTECH REV 1 00 APRIL 2010 PAGE 14 MAINTAINENCE AND REPAIR MANUAL PLV 1000 CHAPTER 2 Getting Started THEORY OF OPERATION The Pressure Limit Valve PLV 1000 is a pressure sensing device used to control a pneumatic circuit The PLV 1000 transfers dynamic fluid pressure into a measurable air signal that can be used to override or control a pneumatic control circuit or control components The PLV 1000 is normally used in conjunction with a pilot operated air valve to shut down components or systems when an over pressure situation occurs As with all sensing devices the PLV 1000 should be maintained and kept clean at all times
17. d from the purging of hoses or the measurement of fluid output deliveries should never be returned to the supply tank such catalyst should be diluted with copious quantities of clean water and disposed of in accordance with the catalyst manufacturer s instructions The extent to which the user is successful in accomplishing these ends and any additional recommendations by the catalyst manufacturer determines largely the safety that will be present in his operation 2 3 Clean Up Solvents and Resin Diluents WARNING A hazardous situation may be present in your pressurized fluid system Hydrocarbon Solvents can cause an explosion when used with aluminum or galvanized components in a closed pressurized fluid system pump heaters filters valves spray guns tanks etc The explosion could cause serious injury death and or substantial property damage Cleaning agents coatings paints etc may contain Halogenated Hydrocarbon Solvents Some Magnum Venus Plastech spray equipment includes aluminum or galvanized components and will be affected by Halogenated Hydrocarbon Solvents A There are three key elements to the Halogenated Hydrocarbon HHC solvent hazard a The presence of HHC solvents 1 1 1 Trichloroethane and Methylene Chloride are the most common of these solvents However other HHC solvents are suspect if used either as part of paint or adhesives formulation or for clean up flushing b Aluminum or Galvanized Parts Most ha
18. ndling equipment contains these elements In contact with these metals HHC solvents could generate a corrosive reaction of a catalytic nature b Equipment capable of withstanding pressure When HHC solvent contact aluminum or galvanized parts inside a closed container such as a pump spray gun or fluid handling system the chemical reaction can over time result in a build up of heat and pressure which can reach explosive proportions When all three elements are present the result can be an extremely violent explosion The reaction can be sustained with very little aluminum or galvanized metal any amount of aluminum is too much A The reaction is unpredictable Prior use of an HHC solvent without incident corrosion or explosion does NOT mean that such use is safe These solvents can be dangerous alone as a clean up or flushing agent or when used as a component or a coating material There is no known inhibitor that is effective under all circumstances Furthermore the mixing of HHC solvents with other materials or solvents such as MEKP alcohol and toluene may render the inhibitors ineffective B The use of reclaimed solvents is particularly hazardous Reclaimers may not add any inhibitors Also the possible presence of water in reclaimed solvents could feed the reaction C Anodized or other oxide coatings cannot be relied upon to prevent the explosive reaction Such coatings can be worn cracked scratched or too thin to pre
19. ntainer and equipment shall be effectively bonded and grounded to dissipate static electricity For further information see National Fire Protection Association NFPA 77 titled Recommended Practice on Static Electrical Refer especially to section 7 7 titled Spray Application of Flammable and Combustible Materials Check with local codes and authorities for other specific standards that might apply to your application NEVER USE HARD MATERIALS SUCH AS WIRE PINS ETC TO CLEAR A PLUGGED GUN HARD MATERIALS CAN CAUSE PERMANENT DAMAGE DAB WITH A BRISTLE BRUSH BLOW BACKWARDS WITH AIR UNTIL CLEAR WHILE WEARING A PROTECTIVE EYE SHIELD REPEAT AS MANY TIMES AS NECESSARY DO NOT PERFORM ANY MAINTENANCE OR REPAIRS UNTIL YOU HAVE FOLLOWED THE PRECAUTIONS STATED ABOVE IF YOU AS AN EQUIPMENT OPERATOR OR SUPERVISOR DO NOT FEEL THAT YOU HAVE BEEN ADEQUATELY TRAINED OR INSTRUCTED AND THAT YOU LACK THE TECHNICAL KNOWLEDGE TO OPERATE OR PERFORM MAINTENANCE ON A PIECE OF MAGNUM VENUS PLASTECH EQUIPMENT PLEASE CALL MAGNUM VENUS PLASTECH BEFORE OPERATING OR PERFORMING MAINTENANCE ON THE EQUIPMENT IF YOU HAVE ANY QUESTIONS REGARDING THE ABOVE PRECAUTIONS OR ANY SERVICE OR OPERATION PRECEDURES CALL YOUR MAGNUM VENUS PLASTECH DISTRIBUTOR OR MAGNUM VENUS PLASTECH NOTICE All statements information and data given herein are believed to be accurate and reliable but are presented without guaranty warranty or responsibility of any kind express or implie
20. ould be stored in a well ventilated separate building 50 feet away from your main plant E You should allow only enough solvent for one day s use in your laminating area F NO SMOKING signs must be posted and observed in all areas of storage or where solvents and other flammable materials are used G Adequate ventilation as covered in OSHA Section 1910 94 and NFPA No 91 is important wherever solvents are stored or used to minimize confine and exhaust the solvent vapors H Solvents should be handled in accordance with OSHA Section 1910 106 and 1910 107 2 4 Catalyst Diluents Magnum Venus Plastech spray up and gel coat systems currently produced are designed so that catalyst diluents are not reguired Magnum Venus Plastech therefore recommends that diluents not be used This avoids the possible contamination which could lead to an explosion due to the handling and mixing of MEKP and diluents In addition it eliminates any problems from the diluents being contaminated through rust particles in drums poor guality control on the part of the diluents suppliers or any other reason If however diluents are absolutely required contact your catalyst supplier and follow his instructions explicitly Preferable the supplier should premix the catalyst to prevent possible on the job contamination while mixing WARNING If diluents are not used it should be remembered that catalyst spillage gun hose and packing leaks are potenti
21. stech recommends that the user consult the regulations established under the Occupational Safety 8 Health Act OSHA particularly the following sections 1910 94 Pertaining to Ventilation 1910 106 Pertaining to flammable liquids 1910 107 Pertaining to spray finishing operations particularly Paragraph m Organic Peroxides and Dual Component Coatings Other standards and recognized authorities to consult are the National Fire Protection Association NFPA bulletins as follows NFPA No 33 Chapter 14 Organic Peroxides and Dual Component Materials NFPA No 63 Dust Explosion Prevention NFPA No 70 National Electrical Code NFPA No 77 Static Electricity NFPA No 91 Blower and Exhaust System NFPA No 654 Plastics Industry Dust Hazards Type of Fire Extinguishing equipment recommended Fire Extinguisher code ABC rating number 4a60bc Extinguishing Media Foam Carbon Dioxide Dry Chemical Water Fog Copies of the above bulletins are available at a nominal charge from National Fire Protection Association 470 Atlantic Avenue Boston MA 02210 Research Report No 11 of the American Insurance Association deal with Fire Explosion and Health Hazards of Organic Peroxides It is published by American Insurance Association 85 John Street New York NY 10038 Local codes and authorities also have standards to be followed in the operation of your spraying eguipment Your insurance carrier will be helpful in answering guestions
22. te challenge to the plastics industry The highly reactive property which makes MEKP valuable to the plastics industry in producing the curing reaction of polyester resins also produces the hazards which require great care and caution in its storage transportation handling processing and disposal MEKP is a single chemical Various polymeric forms may exist which are more or less hazardous with respect to each other These differences may arise not only from different molecular structures all are nevertheless called MEKP and from possible trace impurities left from the manufacture of the chemicals but may also arise by contamination of MEKP with other materials in its storage or use Even a small amount of contamination with acetone for instance may produce an extremely shock sensitive and explosive compound Contamination with promoters or materials containing promoters such as laminate sandings or with any readily oxidizing material such as brass or iron will cause exothermic redox reactions which can become explosive in nature Heat applied to MEKP or heat build up from contamination reactions can cause it to reach what is called its Self Accelerating Decomposition Temperature SADT Researchers have reported measuring pressure rates of rise well in excess of 100 000 psi per second when certain MEKP s reach their SADT For comparison the highest pressure rate of rise listed in NFPA Bulletin NO 68 Explosion Venting is
23. uld increase the danger of fire Also the material may spew onto personnel in the area 2 7 Toxicity of Chemicals A Magnum Venus Plastech recommends that you consult OSHA Sections 1910 94 1910 106 1910 107 and NFPA No 33 Chapter 14 and NFPA No 91 B Contact your chemical supplier s and determine the toxicity of the various chemicals used as well as the best methods to prevent injury irritation and danger to personnel C Also determine the best methods of first aid treatment for each chemical used in your plant 2 8 Treatment of Chemical Injuries Great care should be used in handling the chemicals resins catalyst and solvents used in polyester systems Such chemicals should be treated as if they hurt your skin and eyes and as if they are poison to your body For this reason Magnum Venus Plastech recommends the use of protective clothing and eye wear in using polyester systems However users should be prepared in the event of such an injury Precautions include 1 Know precisely what chemicals you are using and obtain information from your chemical supplier on what to do in the event the chemical gets onto your skin or into the eyes or is swallowed 2 Keep this information together and easily available so that it may be used by those administering first aid or treating the injured person 3 Be sure the information from your chemical supplier includes instructions on how to treat any toxic effects the chemicals have WA
24. umatic lines back in the original position CHAPTER 7 System Start Up Troubleshooting e Turn up the operating pressure to approximately 10 psi e Open recirculation valve and or gun and remove any air from the system While the air is purging out check the PLV 1000 and make sure the Valve body is not venting the control signal e Turn off recirculation valve and or gun and turn up the operating pressure to correct operating pressures e Check for fluid leaks around PLV 1000 Problem Cause Control signal is not reaching control valve or switch Check incoming signal to PLV 1000 Check O ring on Poppet Stem Broken Spring Replace spring Check and replace O ring on Poppet Stem Check for correct assembly TTT PLV 1000 will not vent control signal Check that Poppet Stem moves freely and is not bent Fluid is leaking from PLV 1000 Replace Seal Assemblies and Needle Guide MAINTAINENCE AND REPAIR MANUAL PLV 1000 CHAPTER 8 Assembly Drawings 5 pivo 1 Seg NG RETAINER 6 JPLV 1006 1 SPRING HOUSING 7 SPR C 1004 1 SPRING 8 P 1008 SEAL ASSY MAGNUM VENUS PLASTECH PRESSURE LIMIT VALVE PLV 1000 REV 03 28 08 BT2 MAGNUM VENUS PLASTECH REV 1 00 APRIL 2010 PAGE 25 MAINTAINENCE AND REPAIR MANUAL PLV 1000 MAGNUM VENUS PLASTECH REV 1 00 APRIL 2010 PAGE 26 MAINTAINENCE AND REPAIR MANUAL PLV 1000 TA Corporate HQ Mfg Manuf
25. vent contact There is no known way to make oxide coatings or to employ aluminum alloys which will safely prevent the chemical reaction under all circumstances D Several solvent suppliers have recently begun promoting HHC solvents for use in coating systems The increasing use of HHC solvents is increasing the risk Because of their exemption from many State Implementation Plans as Volatile Organic Compounds VOC s their low flammability hazard and their not being classified as toxic or carcinogenic substances HHC solvents are very desirable in many respects WARNING Do not use Halogenated Hydrocarbon solvents in pressurized fluid systems having aluminum or galvanized wetted parts NOTE Magnum Venus Plastech is aware of NO stabilizers available to prevent Halogenated Hydrocarbon solvents from reaction under all conditions with aluminum components in closed fluid system TAKE IMMEDIATE ACTION Halogenated Hydrocarbon solvents are dangerous when used with aluminum components in a closed fluid system A Consult your material supplier to determine whether your solvent or coating contains Halogenated Hydrocarbon Solvents B Magnum Venus Plastech recommends that you contact your solvent supplier regarding the best non flammable clean up solvent with the heat toxicity for your application C If however you find it necessary to use flammable solvents they must be kept in approved electrically grounded containers D Bulk solvent sh
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