Metso KH Series Operating Instructions Manual
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Metso KH Series Operating Instructions Manual

Metso KH Series Operating Instructions Manual

Knife gate valve
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INSTRUCTIONS AND
MAINTENANCE MANUAL
Knife Gate Valve, series KH
Installation, Maintenance and
Operating Instructions

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Summary of Contents for Metso KH Series

  • Page 1 INSTRUCTIONS AND MAINTENANCE MANUAL Knife Gate Valve, series KH Installation, Maintenance and Operating Instructions...

  • Page 2: Table Of Contents

    4 KH 70 en Table of Contents PRODUCT DESCRIPTION ........3 Liability for defects ..........3 Important information ........3 General application ..........3 SAFETY AND RECYCLING ........3 Safety Precautions ..........3 Recycling and disposal ........3 ASSEMBLY ............4 Handling ..............4 Testing the Valve ..........4 Installation ..............4 Aspects to be considered during assembly ..............4 Assembly position (Horizontal Pipe) .....5...

  • Page 3: Product Description

    CAUTION: General application Do not exceed the valve performance limitations! Knife gate valves from Metso are recommended for many The valve may produce noise in the pipeline. The noise industries such as: level depends on the application. Observe the relevant ...

  • Page 4: Assembly

    4 KH 70 en  ASSEMBLY Pay special attention to maintaining the correct lev- elling of the valves during loading and unloading as THE KNIFE GATE VALVE COMPLIES WITH THE FOLLOWING: well as during transport to prevent deformations in Machinery Directive: DIR 2006/42/EC (MACHINERY) the equipment.

  • Page 5: Assembly Position (Horizontal Pipe)

    4 KH 70 en  The incorrect position or installation of the flanges can cause deformations on the valve’s body and this could lead to operating problems. It is very important to make sure that the valve is cor- rectly aligned and parallel to the flanges to prevent leakages and avoid deformations.

  • Page 6: Assembly Positions (Vertical/Inclined Pipe)

    4 KH 70 en Assembly positions In the event of a leakage, tighten the nuts on the packing gland crosswise until the leakage stops, ensuring that there (Vertical/Inclined Pipe) is no contact between the packing gland and the gate. The knife gate valves can be assembled in all positions; A very high tightening torque on the packing gland’s nuts however, certain aspects must be taken into account: can lead to problems, such as an increase in the valve’s...

  • Page 7: Actuator

    4 KH 70 en ACTUATOR The pressurised air used for the pneumatic actuator must be correctly filtered and lubricated. Handwheel This type of actuator does not require any adjustment, due (Rising or Non‐Rising Stem and Stem to the fact that the pneumatic cylinder is designed for the with Gear Box) exact stroke required by the valve.

  • Page 8: Maintenance

    If the valves suffer any damage due to improper handling or actuator system. without the proper authorisation, Metso will not be Taking into account the recommendations indicated, below responsible. The valves must not be modified except under we indicate the maintenance operations carried out in this express authorisation from Metso.

  • Page 9: Replacing The Packing Seal

    3. Loosen the screws that connect the stem or rod to the consult Metso. Below is an exploded diagram of the gate. pneumatic actuator and a list of the cylinder’s components.
  • Page 10 4 KH 70 en Fig. 8 Tabla 4 PNEUMATIC ACTUATOR POS. DESCRIPTION MATERIAL STEM AISI‐304 CYLINDER HEAD ALUMINIUM PISTON S275JR + EPDM CYLINDER ALUMINIUM CYLINDER CAP ALUMINIUM SCRAPER NITRILE SLEEVE NYLON OUTSIDE O‐RING NITRILE INSIDE O‐RING NITRILE CIR‐CLIP STEEL WASHER ST ZINC O‐RING NITRILE...

  • Page 11: Lubrication

    4 KH 70 en Lubrication ditions, such as rain, wind, etc. Even less so if the equipment is not protected with packaging. It is recommended to lubricate the stem twice a year by  This recommendation is even more important in removing the protection cap and filling it with grease up to areas with high humidity and saline environments.

  • Page 12: Knife Gate Valve Typecode

    Seat: Natural rubber Bottom cover: CF8M Metso Flow Control Inc. Europe, Vanha Porvoontie 229, P.O. Box 304, FI-01301 Vantaa, Finland. Tel. +358 20 483 150. Fax +358 20 483 151 North America, 44 Bowditch Drive, P.O. Box 8044, Shrewsbury, M A 01545, USA. Tel. +1 508 852 0200. Fax +1 508 852 8172 South America, Av.

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