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Summary of Contents for TLV BT3N
- Page 1 172-65162M-03 (BT3N/MBT3N/PBT3N) 5 July 2013 Manufacturer Kakogawa, Japan is approved by LRQA LTD. to ISO 9001/14001 Bypass Blowdown Steam Trap BT3N / MBT3N / PBT3N Copyright © 2013 by TLV CO., LTD. All rights reserved...
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Page 2: Table Of Contents
(electric, pneumatic). The following models are contained in this manual: BT3N: Steam trap with an integrated compact bypass blowdown ball valve with a manual operation handle MBT3N: Steam trap with an integrated compact bypass blowdown ball valve with an... -
Page 3: Safety Considerations
The three types of cautionary items above are very important for safety: be sure to observe all of them as they relate to installation, use, maintenance, and repair. Furthermore, TLV accepts no responsibility for any accidents or damage occurring as a result of failure to observe these precautions. - Page 4 When using this product, NEVER stand close to, or leave tools anywhere near moving parts such as the shaft. Contact with moving parts or objects becoming caught in moving parts could lead to injury, damage or other accidents. 172-65162M-03 (BT3N/MBT3N/PBT3N) 5 Jul 2013...
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Page 5: Checking The Piping
4. Have maintenance valves been installed at the inlet and outlet? If the outlet is subject to back pressure, has a check valve (TLV-CK) been installed? 5. Is the inlet pipe as short as possible, with as few bends as possible, and installed so the liquid will flow naturally down into the trap? 6. -
Page 6: Operation
Air, Condensate Steam Condensate 172-65162M-03 (BT3N/MBT3N/PBT3N) 5 Jul 2013... -
Page 7: Specifications
0.5 MPaG, allow for a cycle operation interval of at least 36 seconds. When the cycle operation interval is less than 36 seconds, a thermal protector will prevent the motor unit from operating until it cools down sufficiently. (1 MPa = 10.197 kg/cm 172-65162M-03 (BT3N/MBT3N/PBT3N) 5 Jul 2013... - Page 8 Ambient Temp. Range 60 °C or lower Water Resistance Rainproof Manual Override Possible in absence of motive pressure Air Consumption (kg/cm (Graph represents consumption for one reciprocating cycle) Air Supply Pressure (MPaG) (1 MPa = 10.197 kg/cm 172-65162M-03 (BT3N/MBT3N/PBT3N) 5 Jul 2013...
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Page 9: Configuration
Air Vent Strip (Bimetal) Spindle O-ring (Inlet/Outlet Valve Seat) Screw & Spring Washer Gland Cover Gasket Gland Gasket Valve Holder Cover Bolt Handle Locknut Orifice Plug Disc Spring Bushing* * Included only with 15 and 20 mm sizes. 172-65162M-03 (BT3N/MBT3N/PBT3N) 5 Jul 2013... - Page 10 Screw & Spring Washer Gland Seat Cover Gasket Disc Spring Bushing* Cover Bolt Disc Spring Motor Unit Orifice Plug Gland Packing Shaft Coupling Nameplate Washer Screen Guide Bushing * Included only with 15 and 20 mm sizes. 172-65162M-03 (BT3N/MBT3N/PBT3N) 5 Jul 2013...
- Page 11 Screw & Spring Washer Gland Seat Cover Gasket Disc Spring Bushing* Cover Bolt Disc Spring Actuator Unit Orifice Plug Gland Packing Shaft Coupling Nameplate Washer Screen Guide Bushing * Included only with 15 and 20 mm sizes. 172-65162M-03 (BT3N/MBT3N/PBT3N) 5 Jul 2013...
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Page 12: Installation And Operation
“Configuration” section). Be sure to screw the bushing or 25mm diameter piping to the body only up to a point where at least 15 mm remain protruding from the connecting screw. Over-tightening may cause breakage. 172-65162M-03 (BT3N/MBT3N/PBT3N) 5 Jul 2013... - Page 13 Make sure the trap is installed with the raised lettering on the body horizontal. BT3N: Operation 1. Turn the handle to a position perpendicular to the piping. (The integrated ball valve will close, causing the product to function as a trap.) Open the inlet and outlet valves slowly and check to make sure that the product functions properly as a steam trap.
- Page 14 7. Turn the control switch OFF to stop using the bypass function. (The integrated ball valve will be closed.) 8. The integrated ball valve should be closed when the product is used as a trap. 172-65162M-03 (BT3N/MBT3N/PBT3N) 5 Jul 2013...
- Page 15 8. To stop using the bypass function, supply air through port B and exhaust the air in the actuator through port A. Integrated ball valve will close. 9. The integrated ball valve should be closed when the product is used as a trap. 172-65162M-03 (BT3N/MBT3N/PBT3N) 5 Jul 2013...
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Page 16: Manual Operation
2. Grasp the manual operation key on the top of the actuator unit with a wrench, and turn in the direction of the arrows (distance across flats: 10 mm). 172-65162M-03 (BT3N/MBT3N/PBT3N) 5 Jul 2013... -
Page 17: Maintenance
To determine whether the bypass valve is closed, make sure that the flat surfaces of the spindle (BT3N) or the shaft coupling (MBT3N and PBT3N) are perpendicular to the piping. If the valve is not fully closed when the flat surfaces are in this position, there is a problem. - Page 18 (1 MPa = 10.197 kg/cm BT3N: Additional Tightening of the Valve Unit Gland Section It is possible to further tighten the gland section in the BT3N valve unit. Holding the handle tightly, by hand, so that it cannot rotate, use a wrench to tighten the locknut at the top of the handle (distance across flats: 10 mm).
- Page 19 • Do not tighten the gland holder completely the first time. Do not tighten it any more than necessary to stop leakage. If leakage continues even after applying additional tightening to the gland holder, • replace parts. 172-65162M-03 (BT3N/MBT3N/PBT3N) 5 Jul 2013...
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Page 20: Disassembly / Reassembly
Use the following procedures to remove components. Use the same procedures in reverse to reassemble. (Installation, inspection, maintenance, repairs, disassembly, adjustment and valve opening/closing should be carried out only by trained maintenance personnel.) BT3N/MBT3N/PBT3N: Disassembly/Reassembly of the Steam Trap Part During Disassembly During Reassembly... - Page 21 Detach the motor or the Reattach the motor or the Actuator actuator unit actuator unit — Unit Shaft Detach the shaft coupling Reattach the shaft coupling Check for deformation Coupling or wear (1 N·m ≈ 10 kg·cm) 172-65162M-03 (BT3N/MBT3N/PBT3N) 5 Jul 2013...
- Page 22 2. Finger-tightening the valve holder first makes it easier to reinsert the spindle into the ball. After reinserting the spindle, tighten the valve holder and the gland. 3. Removing the handle and the locknut from the BT3N destroys the gland section seal. Do not detach the handle and the locknut unless performing a disassembly inspection.
- Page 23 Gland Packing Spindle Ball Gland Seat Washer Orientation of the disc spring Disc Spring and order to assemble disc Gland Holder Gasket springs and the washer Holder Screw (Gland Holder) Washer: 1pc Disc Spring: 2pcs 172-65162M-03 (BT3N/MBT3N/PBT3N) 5 Jul 2013...
- Page 24 BT3N/MBT3N/PBT3N: Disassembly/Reassembly of Bypass Valve Section Part During Disassembly During Reassembly During Inspection Bushing Remove with a wrench: Wrap 3-3.5 turns of sealing (only sizes dist. across flats - 38 mm tape around threads and for 15 & 20 tighten to the proper torque: —...
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Page 25: Troubleshooting
When the trap fails to operate properly, use the following table to locate and remedy the cause. BT3N/MBT3N/PBT3N: Troubleshooting for the Steam Trap and Bypass Valve Problem Diagnosis (Cause) - Page 26 If after attempting all of the above remedies the product still does not operate properly, contact TLV after confirming operating pressure, operating temperature, operating frequency and serial number. All motor units must be repaired by TLV. DO NOT disassemble the motor unit yourself. PBT3N: Troubleshooting for the Actuator Unit When the actuator unit fails to operate as it did when first installed, use the following table to locate and remedy the cause.
- Page 27 If after attempting all of the above remedies the product still does not operate properly, contact TLV after confirming operating pressure, operating temperature, operating frequency and serial number. All actuator units must be repaired by TLV. DO NOT disassemble the actuator unit yourself. 172-65162M-03 (BT3N/MBT3N/PBT3N)
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Page 28: Product Warranty
One year following product delivery. 2. Warranty Coverage TLV CO., LTD. warrants this product to the original purchaser to be free from defective materials and workmanship. Under this warranty, the product will be repaired or replaced at our option, without charge for parts or labor.
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