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Table of Contents
Summary of Contents for MIYAWAKI TBU4
- Page 1 TBU4 TEMPERATURE CONTROL STEAM TRAP USER'S MANUAL...
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Page 2: Table Of Contents
SAFETY GUIDE The model TBU4 is a bimetal temperature control steam trap that has superior durability and essentially doesn't allow steam to leak. In order to get maximum benefit from this product, be sure to read this manual before installing it. -
Page 3: Specifications And Markings
Flow direction: Shown by an arrow Body material: SUS F304 10) Model symbol: Showing the product model name ⚫ Some pictures and illustrations in this manual are examples of TBU4 models. For more details regarding dimensions and other specifications, please refer to the catalog. -
Page 4: Construction Details
2 CONSTRUCTION DETAILS Body Spring Plate 14. Cover Gasket Cover Bimetal 15. Cap Valve Seat 11. Adjust Bolt 16. Cap Gasket Valve 12. Adjust Nut 17. Screen Spring 13. O-Ring 18. Seat Gasket... -
Page 5: Installation
When installing a TBU4 in a horizontal line, be sure to maintain a slight slope to the line, so that any condensate will flow smoothly. -
Page 6: Setting The Temperature
4 SETTING THE TEMPERATURE WARNING Only set the temperature when the body temperature reached room temperature, before any steam is flowing. Be sure not to set the temperature while the steam is in operation. Set temperature The set temperature is the temperature at which condensate will be discharged from the temperature control steam trap. -
Page 7: Stroke Chart
5 STROKE CHART... -
Page 8: Operation
OPERATION CAUTION Before starting operation, open the bypass valve or blow valve completely and blow off the scale in the piping. 6.1 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 9: 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 10 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. 7.2.1 Disassembling the trap 1) Loosen the cover (2). Remove the adjustment unit including the cap (15), the adjust bolt (11), the adjust nut (12), the O-ring (13) and the cap gasket (16).
- Page 11 Body Cover Valve Seat Bimetal Unit (4. Valve） (6. Spring Plate) (7. Bimetal) (8. Washer) (9. E-Ring) (10. Shaft Ring） Spring 11. Adjust Bolt 12. Adjust Nut 13. Ｏ-Ring 14. Cover Gasket Bimetal Unit 15. Cap 16. Cap Gasket 17. Screen 18.
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Page 12: Scale Removal Operation (Type Tb-Sr Only)
*Note: When a malfunction is caused by other factors, normal operation may not be restored by this operation. In such cases, please contact MIYAWAKI, our local authorized agent, or the place where you purchased. - Page 13 Part No. Part name normal operation of the unit has been restored. Spindle 7) If you have any questions, please contact Gland nut MIYAWAKI, our local authorized agent, or the Handle place where you purchased. Hexagon socket screw 8.3 Maintenance ➢...
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Page 14: Troubleshooting
9 TROUBLESHOOTING Problem Possible cause Solution Steam leaks or blows Dirt is stuck around the valve Clean the valve (4) and the through. (4) or valve seat (3) valve seat (3). The valve seat (3) is loose. Tighten the valve seat (3). *1 Damage, erosion or corrosion Replace the valve (4) and the of the valve (4) or valve seat... -
Page 15: Warranty
10 WARRANTY 10.1 Warranty period The warranty period is 18 months after shipment or 12 months after installation, whichever occurs first. 10.2 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 16: 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 17: 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 18 If you have any question, please contact MIYAWAKI, our local authorized agent, or the company where you purchased the product. ⚫ In the interest of the development and improvement of our products, MIYAWAKI Inc. reserves the right to change the specification of the products without prior notice.
- Page 19 If you need any assistance regarding this manual, please contact MIYAWAKI INC.’s International Sales Dept. or its local representative. By scanning QR Code, you can access inquiry form. INTERNATIONAL SALES DEPT. 2-1-30, Tagawakita, Yodogawa-ku, Osaka, 532-0021, Japan Tel: +81-6-6302-5549 www.miyawaki-inc.com/en e-mail: export@miyawaki-inc.co.jp...
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