Forbes Marshall Thermodynamic Trap
FMTD60-O
Installation and Maintenance Manual
Energy Conservation | Environment | Process Efficiency
www.forbesmarshall.com
Страница 1: ...Forbes Marshall Thermodynamic Trap FMTD60 O Installation and Maintenance Manual Energy Conservation Environment Process Efficiency www forbesmarshall com ...
Страница 2: ... 7 Maintenance Guidelines 8 8 Troubleshooting 10 9 Available Spares 12 10 Warranty Period 12 Table of Contents 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 ...
Страница 3: ...ualified personnel refer Section 2 7 the safety operations of these products can be guaranteed General instructions for proper use of tools and safety of equipment s pipeline and plant construction must also be complied with 2 1 Intended use Check if the product is suitable for intended use application by referring to the installation and maintenance instructions name plates and technical informat...
Страница 4: ...h his primary goal and responsibility being safety Warning Notices should be posted wherever necessary 2 8 Handling There is a risk of injury if heavy products are handled manually Analyze the risk and use appropriate handling method by taking into consideration the task individual the working environment and the load 2 9 Freezing Provision should be made to protect systems which are not self drai...
Страница 5: ...5 Screwed BSPT BSP NPT 3 3 Limiting Conditions PMO Maximum operating pressure 21bar g TMO Maximum operating temperature 400 C Cold hydraulic test pressure 42 bar g Minimum pressure for satisfactory operation 0 25 bar g PMOB Maximum back pressure should not exceed 80 of the inlet pressure 3 4 Operating Range Figure 1 Forbes Marshall Thermodynamic Trap FMTD60 O Temperature C Pressure bar g Steam sat...
Страница 6: ...aterial Standard 1 Body St Steel ASTM A743 Gr Ca40 2 Cap St Steel BS 3146 PART2 ANC2 3 Disc St Steel ASTM A240 SS 420 4 Strainer Screen St Steel Type 304 ASTM A24 5 Strainer Cap St Steel BS 3146 PART2 ANC2 3 6 Capacity Chart 0 5 10 15 20 25 0 50 100 150 200 250 300 350 Differential pressure bar g Condensate Kg hr 3 5 Product Dimension and Drawing Note 3 and 4 shown in figure 5 ...
Страница 7: ...he concentric seat rings C 3 As the disc A is drawn downwards flash steam passes between the edge of the disc A and the inner face of the cap D of the trap The flash steam occupies the space in the top surface of the disc A 4 The flash steam above the disc A exert pressure on the larger area on the top surface area of disc A overcomes the inlet pressure acting on a smaller area at the bottom of th...
Страница 8: ... 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 Note Condensate should not be drained through a small pipe connection at the bottom of mainline Figure 4 Recommended installation of Forbes Marshall Thermodynamic Trap on mainline 5 Isolation valves should be installed to al...
Страница 9: ...n the bypass isolation valve 2 Let the condensate drain for 10 15 minutes or until clear condensate starts coming out whichever is earlier 3 Now slowly close the bypass isolation valve and open the 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 functioni...
Страница 10: ...commended tightening torques Table 1 Recommended tightening torque No Parameters to be checked Frequency for checking various parameters Immediate Daily Weekly Monthly Quarterly Half Yearly Annually 1 Test High Pressure steam traps 17 5 bar g and above Y 2 Test Medium Pressure steam traps 3 5 bar g to 17 5 bar g Y 3 Test Low pressure steam traps below 3 5 bar g Y 4 Repair Replace steam traps when ...
Страница 11: ...ass surface and rotate the disc in the shape of the numeric 8 Eight d Lapping should be done till all scratches on the disc disappear Note If the scratches on the disc are not curable then the disc should be replaced 3 When re assembling the main bore cap 2 place the disc 3 in position with the grooved side in contact with the body seating face 1 No gasket is required but a finer smear of molysulf...
Страница 12: ...d trapped inside the steam trap pour water on main bore cap of the steam trap to check it discharge condensate Steam leakage Steam Leaking continuously Ensure Bypass valve is fully closed Check installation i e main bore cap to be on top and fluid flow direction same as arrow on the steam trap body Foreign material or oil film on disc or body seat Clean both disc and body seat flatness on disc and...
Страница 13: ... be improved by lapping individually on flat surface or glass plate If scratch depth is more replace with new disc Note The total amount of metal from body seat face removed should not exceed 0 25mm 0 01 Disc or body seat is worn Replace with new disc If body seat is slightly worn it can be refaced by lapping on flat surface or glass plate If body seat is worn more replace with new steam trap Note...
Страница 14: ... 5 Parts Available as spares Heavy outline for FMTD60 O 10 Warranty Period As per ordering information and agreements in the contract Forbes Marshall Thermodynamic Trap ĦĹÖ ŎHÓÅ SPARE TYPE SPARE CONSISTOF SPARE SPECIFICATION SPARE CODE A B SCREEN AND DISC KIT SCREEN AND DISC PACK OF 5 EACH DN15 SPARE FMTD60O SDKIT DISC SCREEN CAP WITH ALLEN KEY HOLE ...
Страница 15: ...13 FMTD60 O ...
Страница 16: ... is strictly proprietary and legally privileged All contents herein shall be the property of Forbes Marshall Pvt Ltd and having protection under the intellectual property rights No part of this information or data may be distributed or disclosed in any form to any third party Any dissemination use review distribution printing or copying is strictly prohibited if you are not the intended recipient ...
