User manual for W25 sampling valve
Contents
1. MN 000000 User manual for W25 valve User manual tor W25 sampling valve keofitt WORLD LEADERS IN Contents EM NNN I Modo rta Q 2 NNN 2 ESTO NS a EEE E 2 UV UC do ee 2 Moen ri eee 4 am costoso M MU MM EM FIM NR DM E ELI 4 PIT N srana bun 4 WELLS TACA vasse 4 PP RA 4 Block diasram torimstallino W23 VaN Chessin r ee AA LER 5 FSC OUIEE Val type Do Falk sern a a a a a a dos 5 Everyday use or the Va Vers do 6 ET 6 ST NAAS 6 Minne 7 Instructions on replacine PTFE membrane eir ioter eee rto suena e ro aeo Hv ER a A 7 Availale be PSN 8 ltem no 515577 Valve Head tor W25 Type Desarr isa 8 Iten no 865544 Valve Head tor W15 Type Nini is 8 Membrane Tor NJ NST NPR 9 Termicas Dec HEIC AUTO LE SN SN KNR NN tone 9 MIN 10 Introduction Manufacturer Keofitt a s Hans Egedes Vej 19 5210 Odense NV Denmark Sampling valve Type W25 Year of production 2002 Presentation The Keofitt sampling valve is a valve which can be readily sterilised and which meets both hygienic and production requirements This means that an effective cleaning and sterilisation of the sampling valve can be carried out between random samples independently of the course of the production process The Keofitt W25 valve is 3 A certified 3 A Sanitary Standard is an American standard which is normative for a component s ease of cleaning and sterili2. cleaning 1t may be necessary to replace 1t more frequently Average use means Temp eee 115 130 C Steam pressure 1 5 2 5 bar Process pressure 1 6 bar Cl A Nho4 lt 3 or similar Samples 1 5 a day Instructions on replacing PTFE membrane Open valve Release clamp ring Remove the valve head from the valve body Close valve head TT Push the membrane upwards until it is stuck in compressed mode Insert tool for membrane between the membrane and the valve Close valve head Now the membrane should loose from the valve head and can be replaced oe E al Important Once the membrane has been removed from the valve head the click system in the membrane might be damaged Therefore the membrane might be unsafe for further use and it is not recommended to use the membrane again To attach new membrane to valve head 9 Set the valve head to closed position 10 Place the new membrane on valve head 11 Press down on membrane until it clicks in place 12 Set the valve head in open position 13 Insert the valve head into the valve body 14 Attach and close clamp ring 15 Close valve head Important Do not use hammer or other tool that might scratch the surface of the membrane Tool for membrane item no 870255 Available valve heads Item no 875547 Valve Head for W25 Type B Nr 7 8 AISI 304 9 10 m 6 870140 StemforW25 AISI3IGL 12 Item no 865544 Valve H
3. ead for W15 Type N 07 238 i I A PS Sr 4 y Mi 23 0 E WE e U m L_ WS E 1 NI i J E 1 gt 6 Part Nr Nr_ Part Nr 5 6 870141 Lower stem for W25 AISI 304 870449 AISI 304 870148 Bushing for W25 AISI 304 Stand SRC 3 3870248 Neckforw25______ LLL LLL Membrane for W25 item no 870055 Technical Specification Type AF1012 PTFE 29 57 Food safe Yes FDA s not attacked by common chemicals with the exception of strongly oxidising acids RDA approved compound according to Code of Federal Regulations Title 21 177 1550 Keofitt guaranties 1 year of lasting by normal use means Update For complete set of updated data sheets for all W25 valve bodies and heads please refer to our web www keofitt dk 10
4. eofitt valve type T tank Welded to Tank inside 3 Warning Warning Everyday use of the valve During sterilisation with steam the valve will become hot and care should thus be taken when handling the valve For valve heads allowed for Group IIGD Category 2 zone 1 both handle and top of valve heads N and Q must be cleaned before use Sterilisation Remember Important sampling Use saturated steam without condensation at max 2 bar g At higher pressures the membrane can be damaged split The coaxial design ensures absolute cleanliness without the use of CIP or similar If CIP is used please refer to enclosed data sheet If 1n doubt contact Keofitt For best results it is best to leave the steam hose constantly connected to the valve Detaching the hose risks air contamination and makes the sterilisation process unnecessarily complicated Sterilisation takes place with valve closed 1 Open the steam supply 121 C 2 bar g Let the steam flow through the valve for sterilisation I min 3 Close the steam supply Sterilise the valve Open the valve and take the sample Shut the valve after the sample has been taken Clean the valve with steam and or hot water cf sterilisation points 1 3 l 2 3 4 sampling Maintenance The membrane must be replaced once every year with terms of average use In the event of intensive use sterilisation and
5. sation The standard ensures optimum conditions for food products which may come into contact with the component in question The valve 1s used in a wide range of business areas where sampling high viscosity products such as dairies yogurt fruit and marmalade industries Warning During sterilisation with steam the valve will become hot and care should thus be taken when handling the valve Restrictions The valve cannot be used for vacuum since the membrane will be sucked hard into the seat The W15 and W25 valves are only available with PTFE membranes The PTFE membrane resists most CIP fluids and very high steam temperatures W25 1s only available with Clamp on the inlet outlet connections For best results it is best to leave the steam hose constantly connected to the valve Detaching the hose risks air contamination and makes the sterilisation process unnecessarily complicated Valve function The valve 1s designed to regularly take representative random samples in the production process The valve is therefore designed such that effective cleaning sterilisation and sampling can be carried out regularly without interrupting the production process Sterilisation is carried out by supplying steam through the upper of the valve s two hose pieces It 1s the perfect hygienic design in the inner part of the valve which enables absolute sterilisation in a closed state Note The membrane functions both as a dynamic packing in the
6. valve seat and as a hygienic static packing against the valve body Item no 870001 Valve Body for W25 Type T Where to use Welded on tank Use for Sample marmalade yoghurt fruit and other high viscosity products products Material AISI 316L 1 4404 Inner surface Ra 0 8m How to use Manually or pneumatically operated EN Max Working pressure 0 6 bar g A Outlet diameter 25mm Net weight 7 055 kg pc 3A certificate 59 00 aa Mounting instructions Location The valve should always be located with 1ts centre line in a horizontal position and with the two hose pieces in a vertical position as shown in the diagram The valve will then be self draining Valve s centre line Before welding Remember to disassemble the valve body and head The valve body and head must be separated during welding plugs membrane must be removed from the valve body as otherwise heat from the welding process will damage them Welding instructions Type T For type T tank it is necessary to drill a hole 480 mm into the tank wall and then fit the valve into this hole flush with the inside of the tank Welding should be carried out as a penetration welding Material thickness less than 4 mm Weld from inside Material thickness greater than 4 mm Weld from both outside and inside A Important When grinding polishing the internal weld the valve seat must not be touched Block diagram for installing W25 valve K
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