User Manual - PVL International B.V.
Contents
1. FWL PVL International B V Reusel Holland 3 User maintenance 3 1 Cutting head The cutting head will become contaminated by carbon or slag deposits after a while The cutting head should be cleaned as explained below Loosen nut 4 with the supplied spanner 5 While doing this hold nut 6 with the second spanner to prevent damage to supply lines Disassemble cutting head Photo Remove inner gas bracket by loosening nut 23 Do not use sandpaper or file for cleaning use a steel or copper wire brush Make sure all passages for gas or oxygen in the inner gas brackets 7 are open when needed they should be blown open with compressed air After being used intensively for an amount of time the outer gas bracket 8 will burn in When it is seriously burnt in it should be replaced After use in seawater the cutting head should be rinsed with fresh water 10 FWL PVL International B V Reusel Holland 3 2 Cutting Oxygen valve If valve 2 starts leaking or if it opens closes to easy it could close during cutting by a light touch this can be solved as described below e Remove knob 9 e Fasten packing gland nut 10 a little turn right until the valve stops leaking or until it turns a little more difficult 11 PV PVL International B V Reusel Holland 3 3 Gas Oxygen valve 3 3 1 Valve leakage When leaking occurs it is possible to adjust valve seats 11 This should be do2. 18
3. A FWL PVL International B V Reusel Holland User Manual PVL Cutting Torch Revision 2012 Incl IMCA Safety Flash May 2012 Copyright 2002 2012 PVL International B V PVL International B V Dooleg 1 5541 GH The Netherlands Telephone 31 497 645 521 Telefax 31 497 645 621 E mail info pvlint nl PV PVL International B V Reusel Holland www pvlint nl TABLE OF CONTENTS 1 Description of the cutting torCh sssssssssssessssssssssssssssssossrrsrrssssossrrsrr 61 10 GEO EE EEE ENE P OPC NN 2 1Connect ngthePVLcut ngtorch L EEE EE rime MANN VM NNN EEE EE 3 3 2 Replacing O rings and seats senses sanane ken G Ada SONNE TEA EE EE NE Insets Drawing 01 0011 Exploded view cutting head Drawing 01 0012 Exploded view torch grip PV PVL International B V Reusel Holland APPLIED WARNING SIGNS This is an indication for very dangerous situation that can cause severe injury or death This is an indication for dangerous situation that can cause injury or severe damage to the equipment ATTENTION This is an indication for situation that can cause damage to the equipment PV PVL International B V Reusel Holland 1 Description of the cutting torch 1 1 Introduction The cuttin
4. e indicated in the table on page 5 15 reached The cutting head should be held in contact with the material that is to be cut Wait until a orange red glow appears under the cutting head when the torch is adjusted correctly this should take a few seconds Open the cutting oxygen valve 2 2 3 turns Slowly move the PVL torch in the cutting direction Cutting speed will depend on both the material thickness and the experience of the diver When the PVL torch behaves restless chatters the Gas pressure should be reduced a little bit a few times1 10 of a bar PV PVL International B V Reusel Holland Important When Gas is extracted from the bottle the temperature of the Gas in the bottle will decrease This will result in a lower Gas pressure in the bottle ice will be formed on the outside of the bottle the torch will then work bad not at all When this occurs with higher outside temperatures summer it can be solved by coupling 2 or more Gas bottles With lower outside temperatures winter it is reguired to heat the bottle with a warm water bath While using the PVL torch the diver should always keep in mind the dangers of cutting in tanks vessels or other closed compartments like with all other cutting methods Make sure there are no explosive or flammable materials behind the material that is being cut When cutting in a closed compartment make sure the top of the compartment is ventilated drill
5. es are to be connected together Ouads to avoid Oxygen bottle change out The Gas bottles must always be used vertically to be connected to each other to avoid the number of change outs and secured against falling Connect the Gas and Oxygen reducers to the bottles Connect the hoses and the PVL torch gt Ensure all bottle connections have flash arrestors non return valves fitted and the torch side is fitted with non return valves The connections on the torch are marked with for the Oxygen 041 for the cutting Oxygen G for the Gas Adjust the pressure of both Oxygen reducers to the pressure according to the diving depth see table on page 5 Adjust the Gas pressure to 1 5 When adjusting the cutting Oxygen pressure valve 2 should be opened When adjusting the Gas and Oxygen pressures valve 1 should be opened see photo on next page PV PVL International B V Reusel Holland 2 2 The cutting The PVL torch is not suitable for cutting above the water because of its high flame temperature Never try to let the torch burn above the water for more than 10 20 seconds because without cooling by the water the torch head will be damaged The diver must make sure the torch points away from him during descent Open valve 1 1 4 of a turn Light torch with the lighter supplied with the torch 3 The diver can now descent while the operator slowly adjusts the Gas pressure until the pressur
6. g torch is designed exclusively for use under water It differs from other underwater cutting torches by e Low costs per meter compared to thermal cutting devices no expensive electrodes works faster because no electrodes need to be exchanged e Easier to use than the out of date Pickard and Messer Griesheim gasoline torches e Less sensitive for contaminated cutting surfaces e Spare parts can be supplied from stock 4 DANGER amp For safe use of the cutting torch experience with a surface cutting torch is required It is also presumed that the user of the torch is an experienced diver The PVL torch uses Oxygen and Gas as a cutting medium See table on page 5 It has three hose system which uses one hose for the Gas one for the Oxygen and one for the cutting Oxygen The inner diameter of the hoses 15 9 mm The PVL torch is available with a cutting head under 55 and 90 and is supplied together with the maintenance tools in a solid case PV PVL International B V Reusel Holland 1 2 Gas and Oxygen It is not possible to adjust the cutting flame under water The flame is adjusted by adjusting the pressure reducers above the water Table pressure diving depth msw bar bar bar 01100014 168 _____ De pressures for the cutting Oxygen as indicated in the table apply up to 25 mm material thickness When cutting a thicker material the pressure for the cutting Oxygen can be raised without negati
7. his manual The guarantee card has been filled in and returned ATTENTION Only use original replacement parts 14 PWYL PVL International B V Reusel Holland 5 Ordering numbers Ordering number T 1001 T 1002 NT 1003 NT 1004 NT 1005 ST 1003 ST 1004 ST 1005 T 1006 T 1007 T 1008 T 1009 T 1010 T 1011 T 1012 T 1013 T 1014 T 1015 T 1016 T 1017 T 1018 T 1019 T 1020 T 1021 T 1022 T 1023 Parts underwater torch Grip Cutting head Straight tube 12 Straight tube 8 Straight tube 5 557 tube 12 55 tube g8 55 tube Outer gas bracket Inner gas bracket case Inner gas bracket Nut for inner gas bracket Distance nut for outer gas bracket Mounting nut for outer gas bracket Shut off valve cutting oxygen Valve spindle 14 gas oxygen O ring 610 x 2 Plug for valve spindle O ring for plug 10 x 1 5 Handle for gas oxygen valve Screw M4 stainless steel Teflon seat Seat adjustment gland G 1 4 Brass hose connection G 1 4 69 mm Pin wrench stainless steel Mounting accessory for O ring valve spindle T 1013 _15 PV PVL International B V Reusel Holland 6 Spare kit Ordering numbers Amount T 1014 2x T 1016 1 1019 2 1020 2 1022 Ix T 1023 2x 16 PYL PVL International B V Reusel Holland T1017 gol 1029 17 PVL International B V Reusel Holland 11011 11007 11008 11002
8. ne as described below e Remove hose coupling G 12 and O 13 e Fasten the seat glands 15 to adjust the seats turn right 3 3 2 Replacing O rings and seats A spare kit for the Gas Oxygen valve is available The O rings and seats can be replaced as described below e Remove hose connections 12 and O 13 e Loosen seat glands 15 with socket head screw wrench 14 and remove them both Remove both seats 11 Remove handle 16 by loosening screw 17 Loosen plug 18 Remove spindle 19 Remove old O rings 20 Mount spindle 19 without O rings Mount dummy seats 21 Remount seat glands 15 and adjust them until the dummy seats lightly touch the spindle 19 Remove spindle 19 e Place O rings 20 in the spindle and lubricate them lightly with a grease suitable for oxygen use e Place Spindle 19 with the O rings back in the torch Beware not to damage the O rings while doing this Replace the O ring 22 of the plug Mount handle 16 and secure it with screw 17 Remove seat glands 15 Replace dummy seats 21 by new seats 11 and adjust these by lightly tightening the seat glands 15 e Mount both hose connections 12 and 13 2127 PVL International B V Reusel Holland 13 PWYL PVL International B V Reusel Holland 4 Guarantee The PVL cutting torch is guaranteed for 6 months 1f No repairs have been made by unauthorized persons e The torch has been used according to t
9. ve effects on the adjustment of the torch The Gas used for the torch 15 Propylene and is being sold under various trading names Gas table Gas supplier Hoekloos AGA Air products Messer griesheim Air liquide Indugas West falen PV PVL International B V Reusel Holland 2 The operation 2 1 Connecting the PVL cutting torch ATTENTION Make sure that during connecting or disconnecting no sand or other contaminations can come into the torch or the hoses This will result in malfunctions during cutting Check hoses and connections for leakage before use Bottles should only be changed by personnel familiar with handling high pressure oxygen systems Oxygen can react spontaneously to flammable substances such as oil or grease Always make sure no grease oil or other contaminants are present on parts of the Oxygen bottle or reducers to avoid risk of fire or explosion Always make sure the bottles are changed and stored in well ventilated area Avoid all smoking open fire or other ignition sources in the vicinity of the installation The used Gas Is highly flammable In high concentrations it can cause suffocation in lower concentrations it has narcotic effects and can cause dizziness sickness and balance disturbances PV PVL International B V Reusel Holland Oxygen bottles can be used horizontally when used vertically the bottles should be secured to prevent falling The Oxygen bottl
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