Guth Ventiltechnik VSR Скачать руководство пользователя страница 22 | Manualshive

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18.4.17

Modulating Valves Type: VSR

8. Malfunctions

22

2.

The valve stroke is incomplete



Causes:

- Leaking / Ruptured diaphragm.
- Hexagonal nut of the actuator shaft is loose.
- Actuator shaft jammed.
- Valve spindle stiff.
- Controller defect.
- Setpoint signal false or maladjusted, e.g. from signal splitting.
- Zero point setting false.
- Spindle wrongly set.



Rectification of fault:

- Please refer to the corresponding operating instructions.

www.sks-online.com

www.sks-webshop.com

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Содержание VSR

Страница 1: ...tion of the original English GBR 18 4 17 Guth Ventiltechnik GmbH Horstring 16 D 76829 Landau 49 0 6341 5105 0 Fax 49 0 6341 5105 85 www guth vt de sales guth vt de 1 Modulating Valves Type VSR www sks online com www sks webshop com ...

Страница 2: ...r variants 6 2 7 Controller variants 6 2 8 Valve variants 7 3 Functional description 9 4 Installation of the Modulating valve 10 4 1 Installation space 10 4 2 Installation of the fitting 10 4 3 Pipe connections 10 4 4 Welding seam preparation 11 4 5 Pneumtatic connection 11 4 6 Electrical connection 11 5 Commisioning 12 6 Changes to the Modulating valve 12 6 1 Changing the Kvs Value and the Flow R...

Страница 3: ...o observe these instructions Technical modifications resulting in deviations from the illustrations and information contained in these instructions may be made without prior notice being given The pneumatic actuators contain strongly pre tensioned springs This means that there is a risk of death if actuators are opened Therefore the actuators may only be opened by qualified personnel that has been...

Страница 4: ...ey may arise by means of danger symbols pictograms The meaning of the pictograms is as follows If hot or cold fitting parts represent hazards then these parts must be shielded against the pos sibility of persons coming into contact with them by the plant operator For fittings with pneumatic actuators there is a crush hazard during operation of the actuator crushing between the coupling piece and l...

Страница 5: ...osing mixing distributing or reducing the corresponding media pressures and temperatures 2 2 Design of the valve The modulating valve consists of four main sections a Modulating valve housing with inner fittings according to the task involved consisting of a valve spindle and seat ring s b Lantern according to the task involved with spindle seal and guide c Reversible stainless steel diaphragm act...

Страница 6: ... the lantern b This serves both to guide and to seal the spindle Here the seal against the product space is provided by a separate intermediate module for the upper end of the housing The spindle is guided through a bushing with little clearance Where particularly high standards of hygiene must be maintained the chamber between the O rings has connections for alcohol or steam Where required on acc...

Страница 7: ... Cone position K1 Dosage valve with aseptic diaphragm VSR Type L Cone position K1 Steam modulating valve VSR Type LS Cone position K1 Cone position K2 In this position the direction of effect of the cone is the opposite to that of K1 change in flow direction www sks online com www sks webshop com ...

Страница 8: ... Valves Type VSR 2 Technical Data 8 Mixing valve VSR Type LLD Cone position K3 Distribution valve VSR Type LLD Cone position K4 Pressure reducing valve VSR Type LID Cone position K5 www sks online com www sks webshop com ...

Страница 9: ...ontrol cones parabolic cone have an exactly computed form that determines the free cross section in the ring gap in dependency on the length of travel Depending on the flow rate reference for the valve the so called Kvs value and the desired characteristic curve as a function of the length of travel and flow volume different cone forms are needed Normally so called linear or equal per centage char...

Страница 10: ...ng water The valve must be installed in the pipe system such that it is not under tension It is especially impor tant in this respect to take account of forces and torques arising in the pipe system on account of thermal expansion during operation that causes longitudinal stretching Care must also be taken to ensure that vibrations resulting from plant operation or the flow behaviour of the medium...

Страница 11: ...ndard 4 mm pneumatic hoses In case of high ambient temperatures a PP quality hose is recommended Please refer to the corresponding data sheets to obtain the required air pressure For reasons of functional safety and service life of the regulating device the air quality should be high i e dry de oiled and filtered to 5 µm For oiled compressed air the quality must be according to ISO VG32 Class 1 4 ...

Страница 12: ...ng bracket Care must be taken to ensure that the cone is not damaged by coming into contact with other components For cones positioned according to K2 the housing must be removed after releasing the pipe connections and opening the lower clamping ring The same applies to modulating valves with several housing sections There too a housing connection must be released at a suitable point and the modu...

Страница 13: ... as to ensure smooth running at all times When seat rings are reinserted care must be taken to ensure that the O rings are in perfect order However we generally recommend replacing the O rings whenever a modulating valve is opened The O rings should also be greased with a thin film of suitable grease Also care should be taken to ensure that the rings are properly fitted The housing sections and th...

Страница 14: ...ging its position rapidly In the station ary intermediate position a minor oscillation around the target value may be observed However more pronounced oscillation of the spindle and post regulation of the valve positioner indicate a fault Maintenance intervals 7 2 Replacing the Cone Seat Assembly Wear induced by the medium flowing through the cone slot at high speed can alter the state of the cone...

Страница 15: ...damage the O rings when mounting or placing them in their chambers notches or scratches During installation make sure that the new sealing element is in perfect working order Spindle a Standard seal Especially where hygienic conditions are required the spindle seal is very important The O rings are replaced as described above Make sure that the sealing surface on the spindle is in perfect order If...

Страница 16: ...se suitable for use with foodstuffs to the sealing elements as well as the spindle inserts and housing so as to ensure that the sealing elements are properly seated and long service lives for the compo nents that slide against each other See Section 7 5 Lubrication and Maintenance Schedule Fig 4 Assembly Aseptic diaphragm Assembly 1 Screw together the end cap Pos 2 and the housing Pos 3 with the c...

Страница 17: ...amp con nection is about 4 mm for LLD model approx 2 mm 4 Now apply air to the actuator for spring travelling actuators without air 5 Now fix the lantern actuator connection using the clamping bracket 6 Then set the centre of the coupling to the appro priate stroke zero point tolerance 0 5 mm 7 Put the upper hexagonal nut on the coupling 8 The stroke zero point can be set by supplying venting air ...

Страница 18: ...g shell with high temerature mounting paste E Check valve seat replace O ring if necessary Fig 6 Lubrication and maintenance schedule NOTICE Please pay attention to the lubricant manufacturer s safety data sheets NOTICE Please provide these two numbers whenever replacement parts are ordered VSR 12 235 Kvs 26 m3 h Bauj year 2012 Cv gal m Geh body VSR L Charakt Gleich Nw size 50 Hub stroke 20 mm VSR...

Страница 19: ... cleaning agent is compatible with the process Recommended cleaning agents NaOH sodium hydroxide HNO3 nitric acid Example for cleaning Example for cleaning in the food industry for process valves in version EPDM NOTICE The cleaning agents must be stored and disposed of in accordance with currently valid safety regulations Cleaning step Description Exposure time Pre rinsing Process water at ambient...

Страница 20: ...ng glands and the condition of the packing elements If the actuator spindle jams open the diaphragm actuator Please refer to the Operating and Maintenance Instructions for Multi spring Diaphragm Actuators The same applies if an actuator spring has broken Check that all guide sections are sufficiently lubricated with a suitable lubricant If deposits have built up in the area of the cone and seat ri...

Страница 21: ... especially robust rigid housings and spindles and precise spindle guides noise problems with GUTH modulating valves can generally be prevented Causes Inadmissible pressure difference at the cone Unsuitable dimensioning of the valve Fine gaps between the cone and the seat e g because of wear deformation poor fit wrong setting of the spindle spindle coupling deposits Too much play in the spindle gu...

Страница 22: ...onal nut of the actuator shaft is loose Actuator shaft jammed Valve spindle stiff Controller defect Setpoint signal false or maladjusted e g from signal splitting Zero point setting false Spindle wrongly set Rectification of fault Please refer to the corresponding operating instructions www sks online com www sks webshop com ...

Страница 23: ...ansit Get in touch immediately with the last shipper Keep the packaging in case the shipper wishes to inspect it or for returning the goods Packaging for returning goods If possible use the original packaging material If queries arise in connection with packaging and transport safety please contact Guth Ven tiltechnik GmbH Storage in open air Storage in the open air is not permitted Storage in clo...

Страница 24: ...6 16 15 1 7 16 16 20 1 6 8 5 16 16 25 0 25 4 0 4 5 0 63 6 1 7 1 6 8 5 2 5 11 16 16 16 16 16 4 16 16 16 16 16 16 7 19 16 16 16 16 16 9 24 11 16 16 16 16 32 7 19 16 16 16 16 16 11 24 11 16 16 16 16 15 32 6 16 16 16 16 40 0 1 5 2 5 11 4 16 7 19 11 24 11 16 16 16 16 18 32 16 16 16 16 26 37 50 2 5 11 4 16 7 16 11 24 18 32 12 16 12 16 16 16 26 37 8 4 16 8 4 16 16 16 28 48 7 7 16 7 7 16 9 1 16 65 7 19 18...

Страница 25: ...0 18 32 16 16 16 16 9 16 26 37 16 16 16 16 6 7 14 8 28 48 16 16 16 16 4 8 8 65 43 48 16 16 16 16 4 8 8 50 48 16 16 16 16 2 4 5 3 80 43 48 16 16 16 16 4 8 8 68 62 16 16 16 16 2 4 5 3 85 73 16 16 16 12 6 1 7 3 8 100 68 62 16 16 16 12 6 2 4 5 3 100 73 16 16 16 12 6 1 7 3 8 120 90 16 16 16 8 3 1 1 2 5 125 100 73 16 16 16 8 3 150 90 16 16 16 8 3 260 115 13 6 8 11 7 5 150 150 90 16 16 16 12 6 260 115 13...

Страница 26: ...ds on the sealing material Maximum internal housing pressure Standard DN 25 100 OD 1 4 DN125 150 OD 5 5 6 max PN 10 max PN 6 Material Surface quality Standard Parts in contact with product other parts others optionally on request 1 4301 AISI 304 1 4404 AISI316L 1 4301 AISI 304L Surfaces in contact with product Ra 0 8 Gaskets in contact with product EPDM HNBR FKM FEP FFKM PTFE NOTICE Test resistanc...

Страница 27: ...K o n f o r m i t ä t s e r k l ä r u n g D e c l a r a t i o n o f C o n f o r m i t y D e k l a r a c j a z g o d n o ś c i www sks online com www sks webshop com ...

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