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Summary of Contents for TLV BT3N
- Page 1 ISO 9001 ISO14001 Manufacturer Kakogawa, Japan is approved by LRQA Ltd. to ISO 9001/14001 Instruction Manual Bypass Blowdown Steam Trap Featured Models: BT3N/MBT3N/PBT3N 172-65162M-07 Publication date 9 February 2024 Copyright © 2024 TLV CO., LTD.
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Page 2: Table Of Contents
Checking the Piping ........................6 Operation ..........................7 Specifications ........................... 8 Configuration .......................... 11 Installation and Operation ....................... 14 Manual Operation ........................18 Maintenance ........................... 19 Disassembly/Reassembly ...................... 22 Troubleshooting ........................29 TLV EXPRESS LIMITED WARRANTY ................... 32 Service ........................... 34... -
Page 3: Introduction
The TLV bypass blowdown steam trap features a combination of: the most reliable of steam traps, the free float; a compact ball valve, with superior long-lasting sealing properties; and an actuator unit (electric, pneumatic). -
Page 4: 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 5 Caution Be sure to use only the recommended components when repairing the product, and NEVER attempt to modify the product in any way. Failure to observe these precautions may result in damage to the product and burns or other injury due to malfunction or the discharge of fluids. Caution Do not use excessive force when connecting threaded pipes to the product.
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Page 6: Checking The Piping
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? Is the inlet pipe as short as possible, with as few bends as possible, and installed so the... -
Page 7: Operation
Operation Principles of air and condensate discharge: At start-up, the bypass blowdown valve can be opened to allow a large quantity of condensate to be rapidly discharged, minimizing the time required for the unit to warm up. The bimetal holds the float away from the orifice so that initial air in the product chamber is also discharged. -
Page 8: Specifications
Specifications Caution Install properly and DO NOT use this product outside the recommended operating pressure, temperature and other specification ranges. Improper use may result in such hazards as damage to the product or malfunctions that may lead to serious accidents. Local regulations may restrict the use of this product to below the conditions quoted. - Page 9 MBT3N: Motor Unit Motor Type Reversible motor (condenser run type single-phase induction motor) Power Consumption 52 VA (100 to 110 V), 62 VA (200 to 220 V) Control System ON-OFF (fully open/fully closed) Overload Protection Built-in thermal protector 120 ±5 °C Direction of Rotation 90°...
- Page 10 PBT3N: Actuator Unit Actuator Type Vane rotary actuator Air Supply Pressure 0.3 to 1.0 MPaG Air Supply Port Size Rc(PT) Control System ON-OFF (fully open/fully closed) reciprocating Open/Close Time 0.09 to 0.8 seconds (90° rotation) Actuator Capacity 42 cm Ambient Temp. Range 60 °C or lower Water Resistance Rainproof...
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Page 11: Configuration
Configuration BT3N ㉕ ㉑ ⑰ ㉔ ⑫ ㉘ ⑲ ⑱ ⑯ ㉙ ⑳ ㉒ ㉓ ㉖ ⑮ ⑬ ⑭ ㉖ ㉗ ⑧ ⑨ ⑪ ③ ⑥ ⑦ ② ① ⑤ ④ ⑩ Note Removing the handle or locknut causes degradation of the gland section seal. Do not remove the handle or locknut except when performing a disassembly inspection. - Page 12 MBT3N ㉚ ⑫ ㉛ ㉜ ⑨ ⑧ ㉔ ㉕ ⑪ ⑰ ㉙ ⑲ ㉒ ② ⑱ ㉖ ⑳ ① ③ ⑤ ④ ⑩ ㉑ ⑯ ⑥ ⑦ ㉓ ㉗ ⑮ ⑬ ⑭ ㉗ ㉘ Part Name Part Name Body Gland Holder Cover Gland Holder Gasket Float...
- Page 13 PBT3N ㉛ ㉚ ⑫ ㉜ ⑨ ㉔ ㉕ ⑧ ㉙ ⑰ ⑪ ㉒ ⑲ ㉖ ⑱ ② ㉑ ⑳ ⑯ ① ③ ⑤ ④ ⑩ ⑥ ㉓ ⑦ ㉗ ⑮ ⑬ ⑭ ㉗ ㉘ Part Name Part Name Body Gland Holder Cover Gland Holder Gasket Float...
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Page 14: Installation And Operation
Close the inlet valve after blowdown. Confirm that sufficient maintenance space has been provided around the product. Model BT3N Handle ― ―... - Page 15 Tolerance Angle for Installation: 5° 5° 5° Make sure the product is installed with the raised TLV lettering on the body horizontal. BT3N: Operation 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 16 MBT3N: Wiring/Operation Connect the ON/OFF control switch as follows: When the control switch is ON, the valve will open; when it is OFF, the valve will close. If connected to the yellow wire, a pilot lamp will light when the valve is open; if to the brown, a pilot lamp will light when the valve is closed.
- Page 17 PBT3N: Air Supply Piping/Operation Use only clean air, which has been run through an air trap, filter, oiler, etc. Make sure there is no foreign matter, particularly dirt or sealing tape, in the pneumatic actuator. The table below shows the relationship between the air supply and valve opening/closing. Port: A Port: B Valve...
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Page 18: Manual Operation
Manual Operation Caution 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. MBT3N Perform manual operation only after making sure that the power is OFF. -
Page 19: 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 20 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 21 MBT3N/PBT3N: Additional Tightening of the Valve Unit Gland Section It is possible to further tighten the gland section in the MBT3N/PBT3N valve units. Detach the actuator unit (refer to the “Disassembly/Reassembly” section for details). Follow the steps given below to apply additional tightening 1) Loosen the holder screw.
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Page 22: Disassembly/Reassembly
Disassembly/Reassembly Warning NEVER apply direct heat to the float. The float may explode due to increased internal pressure, causing accidents leading to serious injury or damage to property and equipment. Caution When disassembling or removing the product, wait until the internal pressure equals atmospheric pressure and the surface of the product has cooled to room temperature. - Page 23 BT3N/MBT3N/PBT3N: Disassembly/Reassembly of the Steam Trap Part Name & No. During Disassembly During Reassembly During Inspection ― Orifice Plug 10 Remove with a wrench Wrap 3 to 3.5 turns of sealing tape around threads and tighten to the proper torque ―...
- Page 24 MBT3N/PBT3N: Detaching/Reattaching the Motor Unit or Actuator Unit Part Name During Disassembly During Reassembly During Inspection ― Screw & Remove the screw & the Coat threads with anti- Spring Washer spring washer seize and tighten to the proper torque ― Hex Socket Set Remove with a Hex Key Coat threads with anti-...
- Page 25 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. 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 26 MBT3N/PBT3N: Disassembly/Reassembly of the Bypass Valve Gland Section Part Name & No. During Disassembly During Reassembly During Inspection ― Hex Socket Set Remove with a hex key Coat threads with anti- Screw 29 seize, then tighten to the proper torque ―...
- Page 27 BT3N/MBT3N/PBT3N: Disassembly/Reassembly of Bypass Valve Section Part Name & During Disassembly During Reassembly During Inspection ― Bushing 29 Remove with a wrench Wrap 3 to 3.5 turns (for 15,20 mm of sealing tape around only) threads and tighten to the proper torque ―...
- Page 28 Distance Across Flats Part Name N·m BT3N/MBT3N/PBT3N: Steam Trap Orifice Plug Cover Bolt Screw & Spring Washer Orifice BT3N/MBT3N/PBT3N: Bypass Valve Section 01,02 Locknut Gland Bushing Valve Holder MBT3N/PBT3N: Motor Unit or Actuator Unit Screw & Spring Washer Hex Key Bolt...
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Page 29: Troubleshooting
Disassembling or removing the product when it is hot or under pressure may lead to discharge of fluids, causing burns, other injuries or damage. When the product fails to operate properly, use the following table to locate the cause and remedy. BT3N/MBT3N/PBT3N: Troubleshooting for the Steam Trap and Bypass Valve Problem Cause Remedy... - Page 30 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.
- Page 31 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.
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Page 32: Tlv Express Limited Warranty
Subject to the limitations set forth below, TLV CO., LTD., a Japanese corporation ("TLV"), warrants that products which are sold by it, TLV International Inc. ("TII") or one of its group companies excluding TLV Corporation (a corporation of the United States of America), (hereinafter the "Products") are designed and manufactured by TLV, conform to the... - Page 33 HEREBY, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, DO NOT COVER, AND NEITHER TLV, TII NOR ITS TLV GROUP COMPANIES WILL IN ANY EVENT BE LIABLE FOR, INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING, BUT NOT LIMITED TO LOST PROFITS, THE COST OF DISASSEMBLY AND SHIPMENT OF THE DEFECTIVE PRODUCT, INJURY TO OTHER PROPERTY, DAMAGE TO BUYER’S OR THE FIRST...
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Page 34: Service
Service For Service or Technical Assistance: Contact your TLV representative or your regional TLV office. In Europe: Tel: [49]-(0)7263-9150-0 Daimler-Benz-Straße 16-18, 74915 Waibstadt, Germany Tel: [44]-(0)1242-227223 Units 7 & 8, Furlong Business Park, Bishops Cleeve, Gloucestershire GL52 8TW, U.K. Tel:...
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