Forbes Marshall FMTD64 Installation And Maintenance Manual

Forbes Marshall FMTD64 Installation And Maintenance Manual

Thermodynamic trap

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Installation and Maintenance Manual
Forbes Marshall
Thermodynamic Trap
FMTD64
Forbes Marshall
Forbes Marshall Arca
Codel International
Krohne Marshall
Forbes Solar
Forbes Vyncke
Forbes Marshall Steam Systems

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Summary of Contents for Forbes Marshall FMTD64

  • Page 1 Installation and Maintenance Manual Forbes Marshall Thermodynamic Trap FMTD64 Forbes Marshall Forbes Marshall Arca Codel International Krohne Marshall Forbes Solar Forbes Vyncke Forbes Marshall Steam Systems...
  • Page 2: Table Of Contents

    Warranty Period ..............13 PLEASE NOTE - Throughout this manual this cautionary symbol is used to describe a potential damage or injury that might occur if the safety considerations are overlooked. This symbol denotes CAUTION, WARNING or DANGER. Forbes Marshall Thermodynamic Trap...
  • Page 3: Preface

    The product is suitable for use as defined in the technical information sheet. In case the need arises to use the product on any other fluid please contact Forbes Marshall for assistance.
  • Page 4 2.10 Returning products: Customers and Stockist are reminded that, when returning products to Forbes Marshall they must provide information on any hazards and the precautions to be taken due to contamination residues or mechanical damage which may present a health, safety or environmental risk.
  • Page 5: Brief Product Information

    Brief Product Information: 3.1 Description: The Forbes Marshall Thermodynamic Trap FMTD64, with inbuilt strainer and full stainless steel construction, is best suited for header and mainline drains. 3.2 Sizes and End Connections: DN 15 and DN 20 Screwed BSPT/NPT and socket weldable ends Notes: 1.
  • Page 6 ISOTUB- An insulating cover which prevents the trap from being unduly influenced by excessive heat loss such as when subjected to low outside temperature, wind, rain etc. 3.6 Product Dimension and Drawing: Figure 2: Dimensional Drawing of FMTD64 Dimensions (approx.) in mm: Size Weight...
  • Page 7 Condensate entry below the disc concentric to disc/seat ensures clean and parallel lift to disc with reference to seat, eliminating any localized wear and tear. An inbuilt strainer screen of adequately large area ensures long and trouble free operation. FMTD64...
  • Page 8: Product Working Principle

    Product Working Principle: The Forbes Marshall thermodynamic trap works on thermodynamic principle using the dynamic effect of flash steam as hot condensate passes through the trap. 4.1. Operation of Forbes Marshall Thermodynamic Trap : [Refer figure 3] The Forbes Marshall thermodynamic trap operates on thermodynamic principle using the Bernoulli theorem i.e.
  • Page 9: Installation Guidelines

    The horizontal mainline should be provided with proper collecting pocket as provided by equal Tee should end with a drip leg and at the end of the drip leg Forbes Marshall Thermodynamic Trap should be fitted. Typically recommended drain pocket dimensions relative to steam main pipe sizes are given below.
  • Page 10: Start-Up And Commissioning

    Now slowly close the bypass isolation valve and open the upstream trap isolation valve. Note: For a detailed procedure on flushing of lines please visit Forbes Marshall website. 6.2. Commissioning: After installation or maintenance ensure that the system is fully functioning by confirming condensate is passing through it.
  • Page 11: Maintenance Guidelines

    Clean internals / strainer of FMTD64 Visual Inspection for leakages Arresting any other leaks 7.2. Tool Kit: To carry out maintenance of the Forbes Marshall thermodynamic trap [FMTD64] refer the tools mentioned in the table below. Size Component Tool used and size...
  • Page 12 Following methods can be used to determine the operating condition of a trap and determine if its working properly: Testing traps through visual inspection. Testing traps using temperature gun / equipment Testing traps using sound/ultrasound. Testing traps through online monitoring. Forbes Marshall Thermodynamic Trap...
  • Page 13: Troubleshooting

    Troubleshooting: If the expected performance is unachievable after installation of the Forbes Marshall thermodynamic trap, check the following points for appropriate corrective measures. Failure Mode Possible Cause Remedy Inlet drip leg or strainer Flush inline drip leg and clean strainer screen. If...
  • Page 14 Note: The total amount of metal from body seat face removed should not exceed 0.25mm (0.01”). Note: Never attempt to modify the product. When replacing part with new part, use the spare parts listed in section 9. Forbes Marshall Thermodynamic Trap...
  • Page 15: Available Spares

    Always order spares by using the description given in the column headed “Available Spare” and stating the size and type of trap. Example: 1No. Strainer Screen for DN15 Forbes Marshall Thermodynamic Trap FMTD64 Warranty Period: As per ordering information and agreements in the contract.
  • Page 16 Forbes Marshall Forbes Marshall Steam B-85, Phase II, Chakan Indl Area Systems Pvt. Ltd. Sawardari, Chakan (Formerly Spirax Marshall Pvt. Ltd.) Tal. Khed, Dist. Pune 410501. INDIA. Opp 106th Milestone Tel : +91 02135 393400 Bombay Poona Road, Kasarwadi, Pune 411 034. INDIA.

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