Summary of Contents for Forbes Marshall FMTD54M
- Page 1 Installation and Maintenance Manual Forbes Marshall Thermodynamic Trap FMTD54M Energy Conservation | Environment | Process Efficiency www.forbesmarshall.com...
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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 India & abroad 2.11 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.
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Page 5: Brief Product Information
Brief Product Information: 3.1 Description: The Forbes Marshall Thermodynamic Trap FMTD54M, with inbuilt strainer and Forged carbon steel construction, is best suited for header and mainline drains. Replacable trap internals and built in strainer eases inline maintenance 3.2 Sizes and End Connections:... - Page 6 Figure 1: Forbes Marshall Thermodynamic Trap Material Part Material Body ASTM A105N Outer Seat Gasket SS304+Graphite Inner seat gasket SS304+Graphite Disc Tool Steel AISI D2 Top Cover Gasket SS304+Graphite Screen SS304 Strainer Cap BS 3146 Part 2 ANC2 Stud ASTM A193 B7...
- Page 7 DN 15 79 57 116 68 70 DN 20 79 57 116 68 70 DN 25 81 60 116 68 70 Note: * Weight mentioned is of bare FMTD54M Trap. 3.6 Optional extras: 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.
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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 FMTD54M Visual Inspection for leakages Arresting any other leaks 7.2. Tool Kit: To carry out maintenance of the Forbes Marshall thermodynamic trap [FMTD54M] refer the tools mentioned in the table below. Size Component Tool used and size... - Page 12 Remove the strainer screen (6). Fit a new or cleaned strainer screen into the recess in the strainer cap (7). The strainer cap (7) screwed into the body and tightened to a suitable torque 142 – 158 Nm. Note: The use of a thread lubricant is recommended. Forbes Marshall Thermodynamic Trap...
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Page 13: Troubleshooting
Testing traps using temperature gun / equipment Testing traps using sound/ultrasound. Testing traps through online monitoring. 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 Verify inlet and outlet pressure of the steam Differential pressure is low. - 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 old parts with new parts, use the spare parts listed in Section9. Forbes Marshall Thermodynamic Trap...
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Page 15: Available Spares
How to Order 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 FMTD54M Warranty Period: As per ordering information and agreements in the contract. - Page 16 Any dissemination, use, review, distribution, printing or copying is strictly prohibited, if you are not the intended recipient or user of this information. Forbes Marshall Pvt Ltd Manufacturing: B-85, Phase II Chakan Indl Area, Sawardari, Chakan Tal.
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