Jets vacuum piping guide (published
Contents
1. 4 Incorrect The reason for this is that larger dimensions of pipe create less speed of air and consequently slower transport and shorter distances of transport The consequences of this are increased risk of build up of sewage and thereby backflow www jetseroup com Myravegen 1 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no JETS 27 User Manual www jetseroup com Myravegen 1 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no j ETS 28 User Manual 6 General Pipine Installation Guidelines User Manual General Pipine Installation Guidelines 6 0 Toilet Connections 6 0 1 Alignment of Pipe to Toilet Valve To avoid leakage between the toilet valve and the toilet bowl it is important that the pipe is properly aligned 6 0 2 Connection to the Toilet Valve The rubber sleeve and elbow are to be secured with hose clamps 6 0 3 Flexible Hose When flexible hoses connecting pipes and toilets are used the flexible hose should be as short as possible The distance between the toilet outlet and the pipe system must not exceed 70 of the total length of the hose The flexible hose 15 to be secured with hose clamps Sz www jetseroup com Myravegen 1 6060 Hareid Norway Tel 47 70 03 91 002. 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no 5 20 User Manual gt Design and Installation Guidelines Upward Pipe Configuration User Manual Desien and Installation Guidelines Upward Pipe Configuration 5 0 System with Lift from Toilets Our general recommendation is as stated in 4 0 is that toilets should be installed above pipework in the toilet system On occasion this is not possible One of the advantages with a vacuum system is that it is also possible to vacuum waste water in an upward flow Jets system can be designed to vacuum waste upward one deck from a toilet to a from a toilet to a horizontal pipe located below the deck above When installing in this manner correct pipe installation layout are vital This is due to upward lift dramatically increasing the risk for backflow This arrangement also places much higher strain on the system in general Important to remember e Trim of the ship Total length of the pipe branch Slope www jetseroup com Myravegen 1 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no 5 22 User Manual Design and Installation Guidelines Upward Pipe Configuration 5 1 Vacuum System Layout Upward a peen ES DECK 3 I I ZU UM inaccessible Area LINN WANIVA 01 inaccessible Area Reference Name Page Transport Pocket Pipelines Passing
3. 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no j ETS 1 0 User Manual H Desien and Installation Guidelines Downward Pipe Configuration User Manual Desien and Installation Guidelines Downward Pipe Configuration www jetseroup com Myravegen 1 N 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no 4 0 Vacuum System Layout Downward Outlet pipes from toilets should point downwards collecting pipes and branches should be on a lower level than the toilets This means that when the toilet wall mounted or floor mounted is installed the outlet should be connected to a horizontal branch beneath the deck The advantage of such a configuration is that the risk of backflow is eliminated and the outlet pipe from toilets to the collecting pipe branch will in resting position contain only air under vacuum and thereby ensure safe operation of the toilets Sewage aggregated in the horizontal pipes due to change in trim or list will not give any impact regarding the function of the toilet valves As a general rule however each horizontal pipe should be as short as possible and connect to as few toilets as possible on each branch to maximize reliable function Important to remember Trim of the ship Total length of the pipe branch Slope JETS User Manual Design and Installation Guidelines Downward Pipe Configuration 4 1 The Optimal Vacuum
4. Vacuum Fiping Maritime Rodding Point at Rodding End of Pipe Point ao Q BRANCH PIPE 45 ISSUE 2011 Myravegen 1 N 6060 Hareid Norway Tel 47 70 03 91 OO Fax 47 70 0391 O1 E mail 5 User Manual Table of Contents 1 0 1 1 1 2 1 9 4 2 1 4 2 2 4 2 3 4 2 4 4 2 5 4 3 4 3 1 4 3 2 4 4 4 4 1 4 4 2 4 4 3 5 0 5 1 5 1 1 9 2 5 2 1 5 2 2 23 5 2 4 5 2 5 www jetseroup com Myravegen 1 N 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no INTRODUCTION Terms and Conditions Introduction Standard and Regulations Support SYSTEM DESCRIPTION Vacuum Toilet System TEST PROCEDURE AND ACCEPTANCE CRETERIAS Vacuum Pipes Only Complete Vacuum System DESIGN AND INSTALLATION GUIDELINES DOWNWARD PIPE CONFIGURATION Vacuum System Layout Downward The Optimal Vacuum System Layout Choice of Piping Layout Location of Vacuum Unit in Different Types of Ships Vacuum Reservoir Calculationt Vacuum Reservoir Balance Choice of Branches Sectioning and Shut Off of Valves for Service Horizontal Pipes Transport in Horizontal Pipes Transport Pockets Pipe Connections Rodding Points Bends Branches DESIGN AND INSTALLATION GUIDELINES UPWARD PIPE CONFIGURATION System with Lift From Toilets Vacuum System Layout Upward Mounting of Vacuum Pipes in Ceilings Connection to
5. Obstructions www jetseroup com Myravegen 1 N 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no JETS gt User Manual Design and Installation Guidelines Upward Pipe Configuration If a downward layout of outlet pipes from the toilets is not possible each toilet may be connected to horizontal pipes in the ceiling If this solution is chosen correct layout of the vacuum piping is vital This is achieved by 1 Horizontal pipes are to be installed with a minimum number of bends and the number of transport pockets as recommended for the type of ship 2 Horizontal branch pipes are to be as short as possible 3 Vertical collection pipes must be installed so as to avoid undesired waterlocks towards the vacuum generating unit 4 The vacuum generating unit is to be located at the lowest point of the vacuum system and also in a central position in relation to the piping system Deck Ceiling It is preferable that vacuum pipes be mounted with a slope between the transport pockets in the flow direction At transverse sections of vacuum piping distance between transport pockets should be considered separately Even for large vessels length of transverse sections may require reduced distance between transport pockets Bends in pipe lines will always obstruct the flow In horizontal lines bends will cause an accumulation of sewage just after the bend It is
6. System Layout DECK 3 gt PES 2 lt AS Ee Br Z m DECK 2 DECK 1 LINN WANIYA OL DECK 4 TN 7 1 1 D r q I 2 Reference Name Page Grey Water Interface Unit Pipelines Passing Obstructions www jetseroup com Myravegen 1 N 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no JETS User Manual Design and Installation Guidelines Downward Pipe Configuration 4 2 Choice of Piping Layout Ceiling 4 2 1 Location of Vacuum Unit in Different Types of Ships As a main rule the vacuum generating unit should always be located at the absolutely lowest point of the vacuum system In addition it should be located in such a way that main pipes and branches are as short as possible Branch pipes from toilets should be routed in a downward direction towards the vacuum generating unit In addition the following must be considered when installing a vacuum piping system The size of the ship The risk of varying trim and list of the ship www jetseroup com Myravegen 1 N 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no JETS 1 4 User Manual Design and Installation Guidelines Downward Pipe Configuration 4 2 2 Vacuum Reservoir Calculation From Toilets ONILVINNNOO
7. Vacuum Main Branch Rising Pipes from Toilets Gooseneck Connection to Horizontal Branch Pipe Mounting of Horizontal Branch Pipes in Paneled Ceilings Joining of Pipes With Different Dimensions Hd O O Oi 10 10 11 12 13 14 14 15 19 19 16 17 17 17 19 19 20 20 21 22 23 25 25 25 26 26 27 27 JETS User Manual Table of Contents 6 0 6 0 1 6 0 2 6 0 3 6 1 6 2 6 3 6 3 1 6 3 2 6 4 fA 2 1 2 1 GENERAL PIPING INSTALLATION GUIDELINES Toilet Connections Alignment of Pipe to Toilet Valve Connection to Toilet Valve Flexible Hose Pipe Clamps Vacuum Accumulating Tank Grey Water Interface Unit Grey Water Interface Unit Piping Grey Water Interface Unit Pipe Tables Table 1 Materials Table 2 Number of Vacuum Toilets DESCALING AND CLEANING OF VACUUM SEWAGE PIPELINES Jets Descale Data sheet 8020 Jets Toilet Clean Jets Dosing Unit Dosing directly into the main branch via an automatic dosing unit www jetseroup com Myravegen 1 N 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no 29 30 30 30 30 31 31 32 32 32 33 33 33 35 36 37 38 38 38 JETS 3 Dictionary Accumulating tank Atmospheric pressure Backflow Branches Black water Collecting tank Grey water interface unit Rodding point Sewage treatment plant STP Slope Transport pocket Vacuum Vacuum system
8. Vacuumarator pump For small systems with short distance piping a vacuum accumulating tank be needed An accumulating tank is recommended if the total pipe volume is less than 160 litres approx 85 metres of DN50O pipe Air pressure at sea level Sewage from upper pipes flowing back to the rising pipe connected to the toilet Branches are connected to main pipes We recommend system design with short horizontal branches In larger systems we recommend shut off valves each branch Industry name for sewage normally from toilets and urinals The name is used _ to distinguish from grey water Tank for collecting black water and sometimes grey water from a vacuum system Discharge pumps are mainly used for overboard discharge of content from collecting tanks They can be supplied in different types and capacities Gooseneck Upward connection loop to prevent backflow ref page 26 Also known as grey water interface tank tank used to interface grey water outlets from showers wash basins etc with vacuum system Fitted with a CD or ED valve and level sensor for valve activation and tank discharge Normal sizes 8 12 and 16 liters To be installed with suitable distances and sufficient access In longer stretches of pipes install in connection with transport pockets Plant for treatment of black water and grey water prior
9. cleaned and not the outlet pipes from each toilet as when applying Toilet Clean to each individual toilet We recommend that JetsTM Toilet Clean be used for all installations both new and old toilet systems Shutdown and Cleaning by Circulating Jets Descale Boosting Program Please contact Jets AS Service Department We cooperate with Norse Oilfield Services leaders in environmental solutions For our boosting program special pumps parts and tools are required If desired Jets AS can arrange training courses for maintenance personnel The optimal effect of Jets TM Descale is obtained by dosing so as to ensure that the cleansing agent remains in the pipes for as long as possible Applying Descale directly into the toilet should be carried out at times when toilet use is infrequent e g at night By applying a dosing unit the effects of Jets TM Descale are optimized By dosing a small amount once every hour the effect is maximized Note Changes without prior notice J www jetseroup com Myravegen 1 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no e JETS 37 User Manual Descaline and Cleaning of Vacuum Sewage Pipelines 7 1 Jets Toilet Clean 7 1 1 Use of Jets Toilet Clean for New Systems For cleaning and disinfection of toilets urinals and wash basins Toilet Clean may be used like any ordinary cleansing agent for cleaning of the toilet bowl If desired al
10. flushed 1 1 2 liters of sewage and 60 80 liters of air are sucked into the pipe A perfectly installed pipe system will allow sewage to form slug in the transport pockets The remaining part of the pipe will be empty and act as a vacuum reservoir During running the Vacuumarator pump will macerate the sewage generate vacuum and pump the sewage to the sewage treatment plant collecting tank or elsewhere all in one process Air Inlet Deck dst Lii ell Transport Pocket SC gt T LIES 8 Vacuumarator User Manual System Description www jetseroup com Myravegen 1 N 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no JETS User Manual 3 Test Procedure and Acceptance Criteria User Manual Test Procedure Acceptance Criteria 3 0 Vacuum Pipes Only Leakage test to be carried out of complete vacuum pipes without any component toilets grey water interfaces vacuum unit etc connected All pipe ends to be blinded The maximum accepted leakage is Vacuum drop from 0 55 bar to 0 45 bar during one hour 3 1 Complete Vacuum System Leakage test to be carried out of complete vacuum system with all components toilets grey wa ter interfaces vacuum unit etc connected The maximum accepted leakage is Vacuum drop from 0 55 bar to 0 4 bar over 20 minutes www jetseroup com Myravegen 1 6060 Hareid Norway Tel
11. therefore recommended to install a www jetseroup com Myravegen 1 N 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no Ceiling transport pocket just after such a bend to collect the sewage and thereby obtain maximum flow speed at the next straight section When several bends are located close to each other a trans port pocket should be located just after the last bend in the flow direction It is recommended to install transport pockets just after branch connections in the flow direction ZJETS User Manual Design and Installation Guidelines Upward Pipe Configuration 5 1 1 Mounting of Vacuum Pipes in Ceilings e L In many installations the horizontal branch pipes are mounted in the ceiling between the overlaying deck and the paneled ceiling As a consequence toilet outlets are connected to a vertical pipe which in turn is connected to a horizontal branch pipe in the ceiling The greatest challenge in such cases is to avoid back flow to the toilets Backflow is when sewage from upper pipes flows back to the rising pipe connected to the toilet If this rising pipe is filled with sewage it will influence the discharge function and in the worst case cause sewage to flow into the toilet bowl 5 2 Connection to Vacuum Main Branch 5 2 1 Rising Pipes from Toilets Bends are not allowed on rising pipes Vertical pipe connections are to be straight runni
12. Fax 47 70 03 91 01 E mail post jets no j ETS 30 General Pipine Installation Guidelines 6 1 Pipe Clamps The followint pipes are to with secured according to clamps by recommendation from the pipe supplier Change of direction Vertical piping e After connection of a toilet or other equipment e Every 1 5 m or every 2nd frame for plastic pipes Every 2 0 m for DN 40 steel pipe Every 2 3 m for DN 50 steel pipe Every 2 7 m for DN 65 steel pipe Resilient Liner 6 2 Vacuum Accumulating Tank For small vacuum systems up to approx 10 toilets a vacuum accumulating tank must be considered S131IOL An accumulating tank is recommended if the total pipe volume is less than 160 L equal to approx 85 m pipe length DN50 LINN WANNOWA OL www jetseroup com TM Myravegen 1 N 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no JETS 31 6 3 Grey Water Interface Unit 6 3 1 Grey Water in Vacuum Sewage Systems User Manual General Piping Installation Guidelines Grey water system are normally designed for gravity flow and separated from the vacuum sewage system This is because the volume of grey water is normally much higher than black water and it is treated separately or collected in separate collecting tanks However in special situations it might be desired that grey water be fed into the black water system VACUUM U
13. NIT E Grey Water Interface Unit LAUNDRY S Gr Reasons include circumstances where i is impossible to install gravity pipes in a spe cific area or the grey water volume is so limited that feeding into the black water system is accepted When grey water fed into the black water system is considered the risk of negative aspects of cleaning detergents must be acknowledged Soapy water may create foaming in vacuum pumps and disinfection detergents such as chlorine etc may harm the sewage treatment process To feed grey water into a vacuum system a grey water interface unit must be installed The grey water interface unit typical size 8 16 liter includes an interface valve ED valve built on the tank The valve is automatically operated by a level sensor in the tank which activates the ED valve to feed the grey water into the vacuum pipe 6 3 2 Grey Water Interface Unit Normally grey water is be led in separate gravity pipe lines to a sewage treatment plant or collecting tank However in cases where the grey water must be connected to the ship s vacuum system this can be done by installing a grey water unit with interface ED valve to the vacuum system www jetseroup com Myravegen 1 N 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no JETS User Manual General Piping Installation Guidelines 6 4 Pipe tables Table 1 Materials Mat
14. V j The total vacuum reservoir is a result of the total pipe volume When a toilet is flushed 60 100 liters of air is let into the pipes When the vacuum level drops with flushing of the toilets the vacuum generating unit will start to rebuild the vacuum How far the vacuum level will drop and how often the vacuum generating unit will start is dependent on the total pipe volume To rebuild the vacuum will take anywhere from a few seconds to several minutes depending on the pipe volume and capacity of the vacuum generating unit In cases of simultaneous flushing of multiple toilets i e peak load on passenger vessels ferries etc the total pipe volume must be large enough support the systems function In vessels with a total pipe volume of less than 160 litres we recommend increasing the vacuum reservoir by installing an accumulatingtank 4 2 3 Vacuum Reservoir Balance When a toilet is flushed air is sucked into the pipe by the vacuum in the pipe system From a toilet at the end of the pipe the effluent will move towards the vacuum generator However when a toilet in the middle of the pipe is flushed the vacuum reservoir towards the end of the pipe will cause some of the effluent to be sucked in the wrong direction To minimize such problems we recommend designing the system with short horizontal branches and reducing the number of toilets connected to each branch 4 2 4 Choice of Branches An optimally constructe
15. d piping system is designed to contain as little water as possible during ordinary operation This is obtained by making horizontal pipes as short as possible and with as few bends as possible Horizontal collecting pipes main pipes should be located in a way that branches will be as short as possible www jetseroup com Myravegen 1 N 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no JETS User Manual Design and Installation Guidelines Downward Pipe Configuration 4 2 5 Sectioning and Shut off of Valves for Service When deciding the number of main pipes from the vacuum generating unit to the branch points the number of toilets number of decks and the need for shutting off service should be considered blockage or leakage in the vacuum pipes should occur it is important to ensure that the remaining part of the system can still be utilized We recommend to install a minimum of two branch pipes from the vacuum unit manifold to the toilets Each branch pipe should be installed with a shut off valve for isolation in case of failure www jetseroup com Myravegen 1 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no 5 1 6 User Manual Design and Installation Guidelines Downward Pipe Configuration For passenger ships with public toilets separate pipes should be installed to both ladies a
16. elines 7 0 Jets Descale It is recommended to start with Jets Descale Toilet Clean on all new buildings Urine scale is a hard substance that arises due to chemical reaction between the calcium in the water and the urine Without any action taken a build up of scale in the vacuum pipes will sooner or later occur depending on several factors The temperature the content of calcium in the fresh water and the frequency of use of the toilets are factors which decide the rapidity ofthe scale build up In order to avoid scale build up it is recommended to follow the Jets descaling program The Jets descaling program provides treatment for 4 different scenarios I3 The Jets descale maintenance program offers treatment to clean pipes order to avoid new scale build up TED The Jets descale program offers treatment to minor scale build up and is carried out over a longer period of time The Jets descale boosting programme offers treatment to severe scale build up where immediate action is necessary see datasheet 813398 Strong acid treatment is recommended to remove extremely severe scale build up This requires that the toilets be disconnected and the pipes plugged can be carried out in the repair yard ER Fill up the pipe line with a liquid mixture of phosphoric acid and water 10 acid and 90 water Lb Arrange circulation of the mixture if possible Keep the circulation running for 24 hour
17. erial Stainless steel Use Accomodation Accomodation In engine room In accomodation up to 75 mm up to 75 mm or other heat and DN 65 DN 65 producing areas engine room Sizes above DN 65 80 to be used Minimum Pressure PN 10 PN 10 PN 10 PN 10 Rating PEH High Density Polyethylene PVC Polyvinylchlorine e g DIN 86013 Plastic pipes do not resist temperatures above 60 C under vacuum conditions Steel pipes are to be galvanized Reguirements of all national authorities and classification societies must be met Table 2 Number of Vacuum Toilets Minimum pipe size Number i of vacuum Connection PEH Stainless REE DN dxs mm dxs mm 509 d x s mm 0 3 40 50 x 3 0 50 x 2 4 48 3 x 2 6 50 x 1 0 4 25 50 63 x 5 8 63 x 3 0 60 3 x 2 9 50 x 1 0 26 100 65 75 x 6 9 75 x 3 6 76 1 x 2 9 75 1 For installations exceeding 100 toilets Jets AS is to be contacted d outside diameter s wall thickness www jetseroup com Myravegen 1 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no j ETS 33 User Manual www jetseroup com Myravegen 1 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no j ETS 34 User Manual 7 Descaline and Cleanine of Vacuum Sewaee Pipelines User Manual Descaline and Cleaning of Vacuum Sewage Pip
18. ing required Dosing Directly into the Main Branch via an Automatic Dosing Unit For automatic dosing it is necessary to determine the number of toilets covered by the dosing unit Calculate 1 JetsTM Descale per toilet twice during a 24 hour period If the dosing unit covers 50 toilets the calculation will be as follows 50cl 72 liter x 2 1 liter per 24 hours Using this information the system may be set to automatic dosing for a period of 24 hours with dosing occurring at regular intervals as frequently as deemed necessary i e 1dl 10 times per 24 hours or 4 2cl every hour or 0 5 liter twice per 24 hours Dosing at frequent intervals with small doses is preferable and the most effective means of cleaning We recommend 4 2cl per hour Dosing by Adding JetsTM Descale Directly into the Toilet To calculate dosing requirements when dosing directly into the toilet apply the same recommendations as when using an automatic dosing unit In addition 2cl of Descale may be added when cleaning the toilet If dosing in a multiple toilet system and Descale is to be added via one toilet only select the toilet with the longest distance from the vacuumarator Calculate the quantity of Descale required using the previous recommendations i e if there are 50 toilets in the system the total amount of JetsTM Toilet Clean will be 1 liter per 24 hours Remember that by using a dosing unit or by dosing directly into one toilet only the main branch will be
19. l bathroom equipment may be cleaned 7 2 Jets Dosing Unit with Jets Toilet Clean After applying flush the toilet as usual and the flushed down water will resolve exisiting layer or prevent accumulation of layers in new systems Normally 1 liter will be suf ficient for 70 100 toilets depending on the amount of cleaner applied It is designed to work over time to prevent scale build up or remove scale that is just starting to form At the same time it effectively disinfects the sanitary system See safety sheet In order to get the most efficiency out of the liquid smaller and for more frequent dosages the automatic dosing pump Jets Dosing Unit is a good solution The dosing pump can be fitted directly on the 5ltr and 25ltr canister It gives the precise amount of Jets Descale every time Easy to adjust for numbers of toilets We recommend one pump at the end of each pipeline For large passenger vessels we have pumps with multiple outlets 7 2 1 Dosing directly into the main branch via an automatic dosing unit Determine the number of toilets covered by the dosing unit Calculate 1cl Jets Descale per toilet twice during 24 hours desired If the dosing unit covers 50 toilets this will be 50 75 liter x 2 1 liter per 24 hours In principle you may now set the dosing for 24 hours as often as E g 101 10 times per 24 hours or 4 2cl every hour or 0 5 liter twice per 24 hours As many sma
20. ll dosages will be most efficient we recommend 4 2cl per hour www jetseroup com Myravegen 1 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no JETS 38
21. ller s responsibility and Jets AS can not be held responsible for any malfunction of the system due to incorrect pipeline design or construction This is a guideline for all ships with the exception of cruise ships 1 1 Introduction This vacuum piping guide provides information on piping for vacuum sewage as well as waste water pipes connected to such systems The vacuum piping must be in accordance with vacuum sewage system transportation principles During transport through the piping system the slug is affected by gravity and will level out when the toilet valve closes For this reason it is necessary to have transport pockets in the pipe system where the slug can re form Pipes are to be secured by clamps and rodding points are to be made where convenient gt pe From Toilet Air rea To Vacuum Inlet Black Water SLUG Generating Unit 1 2 Standards and Regulations See national shipyard standards for vacuum toilet systems This manual is our recommendation for pipe installations Each country follows its own national standards and regulations 1 3 Support Please contact Jets AS Myravegen 1 N 6060 Hareid Tel 47 700 39 100 Fax 47 700 39 101 E mail post jets no www jetseroup com Myravegen 1 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no 5 User Manual System Description Sanitary Systems made to please 2 0 Vacuum Toilet System A Jets AS
22. n trim and list of the vessel and the ship s movement due to sea conditions Recommended Distances Between Transport Pockets Vessel type Distance Fishing vessels Other vessels cargo ships container vessels and the like Large passenger vessels For systems with downward directed outlet pipes from toilets to horizontal pipe branches the distance between transport pockets should not exceed 25 meters MAX 2000mm N If the vacuum pipe must to be placed above obstructions it is important to place a transport pocket in front of the rising pipe In this way maximum speed of the transported sewage is obtained in More than 2000mm the rising pipe If the horizontal pipe at the higher level exceeds 2000mm a gooseneck must be installed to prevent backflow J JETS User Manual Design and Installation Guidelines Downward Pipe Configuration 4 4 Pipe Connections The number of toilets connected to LT branches and collecting pipes will 45 L decide the pipe dimensions The most CJ engel commonly used dimension for pipes e gm from toilets and also from branches is I 1 DN50 for multiple of toilets to 20 25 TI toilets For collecting pipes exceeding 25 toilet connections DN65 is to be used TA Connection of horizontal branches to Tones XE p downward carried out collecting pipes pru D should always be done with a downward a ee 45 bend connec
23. nd gentlemen s toilets The purpose is to maintain operation of ladies or gentlemen s toilets in case of blocking or leakage in one line GENTLEMEN LADIES OT Fi g gt 5 Ve Search E OL 4 3 Horizontal Pipes 4 3 1 Transport in Horizontal Pipes Downward directed outlet pipes from toilets The pipes may be mounted horizontally between the transport pockets provided that the outlet pipes from toilets have a downward direction and hence backflow is prevented Transport pockets are made to re form slugs When a toilet on the same pipeline is flushed the pressure difference in front of and at the back of the pocket will push the slug on to the next pocket 600 800mm www jetseroup com JETS 2 Myravegen 1 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no www jetseroup com Myravegen 1 N 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no User Manual Design and Installation Guidelines Downward Pipe Configuration When passing obstructions ie crossing ventilation ducts crossing pipes and etc it is advantageous to construct the passing as a transport pocket Deck E J L pucr tre VENT PIPES ETC Ceiling The distance between transport pockets should be decided considering the risk of change i
24. ng with no bends to obtain the best possible transport out from the toilet If there is an obstruction behind the toilet the rising pipe can be a maximum of 1500mm from the toilet A transport pocket must be located just before the rising pipe ES 1 1500 EE V ee vee www jetseroup com Max 3000mm Myravegen 1 N 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no 5 Max 3000mm User Manual Design and Installation Guidelines Upward Pipe Configuration 5 2 2 Gooseneck The rising pipe is to be connected to the upper side of the horizontal branch pipe with a gooseneck at an angle of 45 in the direction of flow The of gooseneck is to be installed ata minimum height of 3 x the diameter of the pipe 5 2 3 Connection to the Horizontal Branch Pipe The rising pipe from a toilet must never be connected to a point on a horizontal branch pipe that may be filled with water i e at a low level point of the pipe line The reason for this is that in case of low vacuum in the horizontal branch pipes water may be sucked through the gooseneck and gradually the rising pipe will be filled with sewage In corridors where rising pipes from toilets on both sides are connected to a common branch pipe the rising pipe should go as high up as possible and then point d
25. ownwards towards the branch pipe Deck Ceiling CABIN CORRIDOR CABIN 9 M 2 M M M M M M M 2 ee d M M M 3 N 9 M M M M B 2 www jetseroup com Myravegen 1 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no 5 26 User Manual Design and Installation Guidelines Upward Pipe Configuration 5 2 4 Mounting of Horizontal Branch Pipes in Paneled Ceilings Horizontal branch pipes between overlaying decks and paneleds ceiling are to be placed as close to the paneled ceiling as possible i e transport pockets are to form lower boundary layers towards the ceiling In this way maximum space for the gooseneck in the joint between the rising pipe from toilet to the horizontal pipe is obtained 5 2 5 Joining of Pipes with Different Dimensions The number of toilets connected to branches and For collecting pipes exceeding 25 toilet connec collecting pipes will decide the pipe dimension tions DN 65 is used The most commonly used dimension for pipes Important note rising pipes with vacuum transport from toilets and also from branches is DN50 for from lower to higher levels must never be installed multiple toilets up to 20 25 toilets with transitions to larger dimensions of pipe Correct
26. s Flush out with water The Jets descaling programmes allow running toilets during processes 1 3 It is therefore not necessary to disconnect the toilets or plug the pipes during the descaling process Jets AS recommend 2 options Manual dosing Poor the Jets descaling liquid directly into the toilets according to Jets recommended dosing program h Automatic dosing Dosing units to be installed in the vessel according to Jets recommendations It is highly recommended to follow Jets recommendations accurately in order to obtain maximum effect Please contact Jets AS to arrange a dosing program adapted specifically for to your vessel www jetseroup com Myravegen 1 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no JETS 36 User Manual Jets Toilet Clean Jets Descale amp Function DATA SHEET NO 813398 18 11 2010 Page 1 of 1 Use of JetsTM Toilet Clean in New Toilet Systems JetsTM Toilet Clean may be used like any ordinary cleansing agent for cleaning the toilet bowl If desired all standard bathroom equipment may be cleaned with JetsTM Toilet Clean After applying flush the toilet as usual The flushing water will dissolve existing layers of scale and prevent accumulation of scale in new toilet systems Jets TM recommend using one 1 liter of Toilet Clean per 70 to 100 toilets depending on the amount of clean
27. tion In larger systems TOILET S we recommend shut off valves for each branch Remember to include sufficient access to shut off valves MAIN PIPE 4 4 1 Rodding Points Rodding points should be installed with suitable distances and sufficient access In longer stretches of pipe installation of the rodding points can occur in connection with transport pockets Rodding Point Rodding Point ALT 1 Rodding Point d B Rodding Point www jetseroup com Myravegen 1 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no 5 1 9 User Manual Design and Installation Guidelines Downward Pipe Configuration 4 4 2 Bends Bends are to be made with a large radius of curvature For plastic pipes and steel push fit pipes the minimum radius is to be 2 x D or a 90 bend made of two 45 bend pieces For welded steel pipes the minimum bend radius must be 3 x D The inside of the pipes and fittings is to be smooth and without obstructions to avoid clogging R 3 X d min 4 4 3 Branches Connecting of pipes is to be made atamaximum be connected to horizontal main pipes from angle of 45 in the direction of transport T pipes above Branch pipes are always to be connected are not to be used Branch pipes are always to to vertical main pipes at an angle of 45 www jetseroup com Myravegen 1 6060 Hareid Norway Tel
28. to overboard discharge from ships or release back into the ecosystem on land Horizontal pipe with downward angle Water and effluent from toilets collected in transport pockets Pocket created to to re form slug When toilet on the same pipeline is flushed _ the pressure difference in front of and at the back of the pocket will push the _ _ Slug on to the next pocket Any air pressure below atmospheric pressure often described in percentages of total vacuum Our CVS systems generally operate between 40 55 vacuum complete system consisting of vacuum pipes vacuum unit vacuum toilets and in some cases also interface units for grey water and urinals _ generator developed by Jets Generates vacuum and macerates transports sewage a single pass operation The Vacuumarator pump is purpose built design based on the Helivac pump principle www jetseroup com Myravegen 1 N 6060 Hareid Norway Tel 47 70 03 91 00 Fax 47 70 03 91 01 E mail post jets no o JETS User Manual 4 User Manual 1 Introduction Sanitary Systems made to please User Manual Introduction 1 0 Terms and Conditions Jets vacuum piping guide is considered a guideline only and is intended to assist pipeline designers to avoid design errors is not to be used as a complete instruction Pipelines are the building yard insta
29. vacuum toilet system consists of 1 A vacuum generating unit for producing vacuum 2 A piping system for transport of sewage 3 Toilets urinals grey water interface units etc to let the sewage into the piping system Difference in air pressure is used to transport sewage from toilets to a vacuum unit In idle position there is 40 55 vacuum in the piping system When flushing a toilet air is let into the system The content in the bowl is sucked into the piping together with 60 80 liters of air Water and effluent will form a slug This slug will be sucked about 5 to 15 meter into the pipeline The exact distance depends on the level of vacuum dimension of the pipe direction of flow bends and other restrictions in the piping When the toilet valve closes the movement of the slug will stop and the sewage will flow by gravity to the lowest point in the pipe In order to have further transport the slug must be re formed By building transport pockets in the pipelines the sewage will flow into the closest transport pocket When next flushing of the toilet takes place the sewage from one transport pocket will move to the next transport pocket simultaneous with emptying of the toilet until reaching the vacuum generating unit As a result of each toilet flushing the vacuum level in the pipe system will decrease and the vacuum generating unit will start and maintain the vacuum level in the pipe system When a toilet is
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