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MIYAWAKI GTH12 User Manual
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MIYAWAKI GTH12 User Manual

Ball float steam trap
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BALL FLOAT STEAM TRAP
USER'S MANUAL

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Summary of Contents for MIYAWAKI GTH12

  • Page 1 BALL FLOAT STEAM TRAP USER'S MANUAL...

  • Page 2: Table Of Contents

    SAFETY GUIDE The model GTH 12 is a cast steel ball float steam trap with an integrated bimetal automatic air vent. In order to get maximum benefit from this product, be sure to read this manual before installing it. The following warnings and cautions are shown at appropriate places in this manual.

  • Page 3: Specifications And Markings

    (9) Model symbol: Showing the product model name Some pictures and illustrations in this manual are that of the representative model of GTH12 models. For more details regarding a photo of the model GTH12-W, dimensions and other specifications, refer to the catalog.

  • Page 4: Construction Details

    CONSTRUCTION DETAILS GTH12-5F, GTH12-16F, GTH12-25F, GTH12-32F (Flanged) models GTH12-5W, GTH12-16W, GTH12-25W, GTH12-32W (Socket Weld) models Body Spring 19. Screen Cover 21. Name Plate Float 10. Bracket 22. Rivet Lever 11. Set Bolt 35. Plug Valve Seat 12. Cover Gasket 36. Plug Seat Gasket 13.
  • Page 5 GTH12-45F (Flanged) model GTH12-45W (Socket Weld) model Body Spring 19. Screen Cover 21. Name Plate Float 10. Bracket 22. Rivet Lever 11. Set Bolt 35. Plug Valve Seat 12. Cover Gasket 36. Plug Seat Gasket 13. Cover Bolt 37. Plug Gasket Valve 17.

  • Page 6: Installation

    (2) Check the flow direction indicated on the cover. (3) When installing the model GTH12, install it so that the flow from the upstream line to the downstream line is horizontal and the top label and the name plate is on the top side of the body.

  • Page 7: Maintenance

    Even if both diagnostic tools are used, accurate diagnosis results may not be obtained depending on the location and installation status of the steam trap, or the type and operating condition of the steam trap. For details, please contact MIYAWAKI, our local authorized agent, or the place where you purchased.
  • Page 8 Repairs When a trap fails, it is necessary to clean the internal parts and to replace damaged parts. Take the failed trap apart following the steps below. CAUTION  Never fail to disassemble the air vent. To assemble and adjust the air vent is too difficult work. So when cleaning the air vent, just clean the valve by turning it, or wash it in clear water.
  • Page 9 17 mm (0.67 Screen (19) Pipe wrench About 30 N・m " Cover plug （36） Torque wrench 65N・m 23 mm (0.94 " GTH12-5, 16,25,32 Cover bolt (13) Torque wrench 80N・m 19 mm (0.75 " GTH12-45 Cover bolt (13) Torque wrench 110N・m 24 mm (0.94...
  • Page 10 GTH12 model Body Valve 13. Cover Bolt Cover Spring 17. Air Vent Float 19. Screen Lever 10. Bracket 35. Plug Valve Seat 11. Set Bolt 36. Plug Seat Gasket 12. Cover Gasket 37. Plug Gasket...

  • Page 11: Troubleshooting

    TROUBLESHOOTING Problem Possible cause Solution Foreign material such as scale Clean the valve (7) and the Steam leaks or blows or dirt is stuck between the valve seat (5). through. valve (7) and the valve seat (5). The valve (7) and/or the valve Replace the valve unit.

  • Page 12: Warranty

    WARRANTY 6.1 Warranty period The warranty period is 18 months after shipment or 12 months after installation, whichever occurs first. 6.2 Details of the warranty If the product stops working correctly within the warranty period, we will repair or replace the product free of charge if the cause of the trouble is not one of the following items.

  • Page 13: Serial Number (S. No.) Designation

    SERIAL NUMBER (S. No.) DESIGNATION S.No. □□□□ Represents the day. Represents the month. Represents the year. (last two digits of the year according to the Western calendar) Month designation system Month Symbol Month Symbol Month Symbol Month Symbol Day designation system Symbol Symbol Symbol...

  • Page 14: Guidance For Reading Special Product Name

    GUIDANCE FOR READING SPECIAL PRODUCT NAME 〇〇〇-○○-□ Special symbol: Symbol apply only to special product (Please refer to table 1 for details) English letter after “-“ Model symbol: Product model number Table 1 Symbol description Suffix Special contents Trap for high-pressure gas installed property (only for Gas Trap) Blow valve attached Change of gasket Special face to face dimension...
  • Page 15 MIYAWAKI INC.  Some special specifications of the product you have, may found to be different from the ones in the user's manual. If you have any question, please contact MIYAWAKI, our local authorized agent, or the place where you purchased.
  • Page 16 INTERNATIONAL SALES DEPT. 2-1-30, Tagawakita, Yodogawa-ku, Osaka, 532-0021, Japan Tel: +81-6-6302-5549 www.miyawaki.net e-mail: export@miyawaki-inc.co.jp EU Importer and Authorized representative: MIYAWAKI GmbH Birnbaumsmühle 65, 15234 Frankfurt (Oder), Germany Tel: +49-335-4007-0097 www.miyawaki.net e-mail: info@miyawaki.de China Importer and Authorized representative: MIYAWAKI WEST Co.,ltd Room 1705, No.1, Building,No.311, Yanxin Road, Huishan Economic Development Zone,...