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MIYAWAKI ESU5 User Manual

Inverted bucket steam trap
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ESU5
INVERTED BUCKET STEAM TRAP
USER'S MANUAL

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Summary of Contents for MIYAWAKI ESU5

  • Page 1 ESU5 INVERTED BUCKET STEAM TRAP USER'S MANUAL...

  • Page 2: Table Of Contents

    SAFETY GUIDE The model ESU5 is a stainless steel inverted bucket steam trap for small up to medium condensate loads. 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

    Model : Showing the product model name  Some pictures and illustrations in this manual are examples of ESU5 models. For more details regarding dimensions and other specifications, please refer to the catalog. The model ESU5 fully complies with the requirements of the European Pressure Equipment Directive 2014/68/EU.

  • Page 4: Construction Details

    CONSTRUCTION DETAILS Body Bucket 17. Spacer Cover 10. Eyebolt 18. Name Plate Plug 11. Capsule 19. Rivet Plug 12. Eyebolt Pin 20. Cover Bolt Valve Seat 13. Lever 21. Cover Gasket Valve 14. Bracket 22. Seat Gasket Valve Holder 15. Pin 23.

  • Page 5: Installation

    INSTALLATION WARNING Pay very careful attention when working in hazardous environments. There is a risk of explosion and the possibility of dangerous gases leaking. Always check whether the pipeline contains flammable, high pressure or high temperature materials before starting to work. ...
  • Page 6 2) Check the flow direction indicated on the body. 3) When installing the model ESU5, install it so that the flow from the upstream line to the downstream line is horizontal and the name plate is on the top side of the body.

  • Page 7: Operation

    OPERATION CAUTION Before starting operation, open the bypass valve or blow valve completely and blow off the scale in the piping. 4.1 Operation procedure 1) After blowing off the scale from the piping, close the bypass valve or blow valve. 2) Open the stop valve on the trap outlet side.

  • Page 8: Maintenance

    CAUTION  When replacing parts, make sure the replacement parts are supplied by MIYAWAKI. The performance of steam traps deteriorates gradually over time due to wear, corrosion or dirt accumulating around the valve and the valve seat. Please conduct periodic diagnosis of traps in order to keep steam control systems and equipment working well.
  • Page 9 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. 5.2.1 Disassembling the trap 1) Remove the cover bolts (20) and remove the cover (2) from the body (1). 2) The internal unit and bucket (9) can be removed while connected to the cover (2).
  • Page 10 5.2.2 Reassembling the trap 1) Put the capsule (11) into the body (1). 2) Attach the valve holder (7) to the lever (13), insert the valve (6) into the valve holder (7), and attach the pin (8) to the valve holder (7). After bending the tip of the pin (8), check that the valve holder (7) can be rotated 360°...
  • Page 11 (19) (18) Body (20) Cover Plug Plug Valve Seat (17) Valve Valve Holder (14) (15) (22) Bucket (16) Eyebolt Capsule Eyebolt Pin (12) (13) Lever Bracket (10) Set Bolt Spacer Name Plate Rivet Cover Bolt (11) Cover Gasket Seat Gasket (21)

  • Page 12: Troubleshooting

    TROUBLESHOOTING Problem Possible cause Solution Steam leaks or blows The condensate amount in the Remove the plug (4) and pour through. body (1) is extremely small, water into the body (1). and the valve opening state continues due to the sinking of the bucket (9).

  • Page 13: Warranty

    Problems caused by devices or equipment other than MIYAWAKI’s, or a disallowed use environment When a repair or modification has been performed by anyone other than MIYAWAKI or people who are authorized to make such repairs Intrusion of salt or other substances that promote significant rust or corrosion or problems from fluids that contain the same substances Consumable parts such as Packing, Gasket, O-ring, Diaphragm, etc.

  • Page 14: Serial Number (S. No.) Designation

    1 7 1 1 → Jan.1, 2017 2 9 X M → Oct. 21, 2029 ●For 9-digit display S.No. □□□□□□□□□ MIYAWAKI identification number Represents the month. Represents the year. (last two digits of the year according to the Western calendar) Example of serial number designation 1 7 1 1 2 C 0 2 0 →...

  • Page 15: Guidance For Reading Special Product Name

    GUIDANCE FOR READING SPECIAL PRODUCT NAME 〇〇〇-○○-□ Special symbol: The symbol applies only to special products (Please refer to table 1 for details) 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 16 MEMO...
  • Page 18 808073-05 2301...

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