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Summary of Contents for Forbes Marshall TOFT
- Page 1 Installation and Maintenance Manual Two Orifice Float Trap TOFT Energy Conservation | Environment | Process Efficiency www.forbesmarshall.com...
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Page 2: Table Of Contents
Table of Contents Preface Important Safety Note Product Information Product Working Principle Installation Guidelines Start-up and Commissioning Maintenance Guidelines Troubleshooting Available Spares 10. Warranty Period 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. -
Page 3: Preface
The correct installation and direction of fluid flow has to be determined. Forbes Marshall products are not intended to resist external stresses, hence necessary precautions to be taken to minimize the same. 2.2. Accessibility and Lighting Safe accessibility and working conditions are to be ensured prior to working on the product 2.3. - Page 4 India & abroad 2.11. Returning products Customers and Stockiest 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: Product Information
Product Information: 3.1. Description: The Forbes Marshall Two Orifice Float Trap, TOFT, has SG iron cover and base with stainless steel internals, optional steam lock release (SLR) and automatic air venting facility. The TOFT comes with two orifices operated by single float. - Page 6 Fig 1 Overall Dimensions TOFT WEIGHT SIZE DIMENSIONS (mm) (kg) Withdrawal Distance 15/20 158.5 87.5 40/50 Fig 2 Partial Cut Section View of TOFT Part Material Standard Base SG iron EN-JS 1025 Cover bolts Stainless steel A 193 B 8 Cover gasket...
- Page 7 On 4.5 bar g units this will provide a minimum of 25% increased capacity above the hot condensate figures shown. On 10 and 17 bar g units this will be minimum increase of 40% on the published capacity Discharge capacities as measured as per : ISO 7842 TOFT...
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Page 8: Product Working Principle
(flowrate). The float trap continues to discharge condensate continuously. At higher flow rate conditions (like start up ) the float rises further to open second orifice in case of TOFT and doesn't allow back up of condensate as long as the load is within the discharge capacity. -
Page 9: Installation Guidelines
Figure 4: Two Orifice Float trap module *Typical/ Repr e sentative Installation and may vary based on application and site Description Disk Check V alve Stop Valve View Glass Two Orifice Float T r ap Strainer ( c) Fig 5 View of TOFT TOFT... -
Page 10: Startup And Commissioning
Startup and Commissioning 6.1 Flushing of Lines (Refer to Figure 4) As part of pre-installation all fluid handling equipment particularly piping should be thoroughly cleaned of scale and the internal debris which accumulates during construction. This is accomplished by blowing or flushing with air, steam, water and other suitable medium. -
Page 11: Maintenance Guidelines
FREQUENCY FOR CHECKING VARIOUS PARAMETERS Half yearly Annually Steam traps Immediately Daily Weekly Monthly Quarterly Check TOFT Repair / Replace steam traps - when testing shows leaks Clean strainers of TOFT Clean internals of TOFT Visual inspection for leakages Arresting any other leaks TOFT... - Page 12 7.2. Tool Kit: To carry out maintenance of the Compact module two orifice float trap refer the tools mentioned in the table below. Component Tool used & Size Gland nut Open spanner 21 mm (A/F) Air Vent Assembly Open spanner 17 mm (A/F) Main valve seat 12 inch Screw driver M4 / M5 /M6 Allen bolt for float seat...
- Page 13 7.6. Procedure to fit the steam lock release (SLR) assembly: (Refer to Figure 10) Unscrew the complete SLR assembly. Remove the SLR gasket (not shown in the figure 10). Replace the SLR assembly and gasket with new ones. Reset the SLR. Figure 10: Maintaining the SLR assembly TOFT...
- Page 14 7.7. Procedure to fit the steam lock release (SLR) and Air Vent (TV) assembly: (Refer to Figure 11) Unscrew the complete SLR assembly. Remove the SLR gasket (not shown in the figure 11). Replace the SLR assembly and gasket with new ones. Maintain TV assembly as per the section 7.5.
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Page 15: Troubleshooting
Check for SLR leakage/setting check for air vent leakage. Tighten the cover nuts and bolts to the recommended torque. Steam leaking from Check the gasket for any possible damage and the trap body. replace it if required. TOFT... - Page 16 Failure Mode Remedy Check parameters and trap sizing. The trap will not discharge enough condensate if the actual size is below the recommended size based on the condensate load. Check for back pressure and corresponding discharge capacities as per the capacity charts. i) Replace/repair the leaking and non- working traps with working traps, the leak traps may create/increase...
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Page 17: Available Spares
Available Spares: TOFT... -
Page 18: Warranty Period
9.1 How to Order: Example: DN 15 Two Orifice Float Trap, Screwed BSPT TOFT-4.5 bar g differential pressure with steam lock release. 9.2 How to Order Spares: Always order spares by using the description given in the column headed 'Available spares' and state the size, type of trap and pressure range. - Page 19 TOFT...
- Page 20 Forbes Marshall Pvt. Ltd. Forbes Marshall International Pte. Ltd. 16A, Tuas Avenue 1, Opp. 106th Milestone, CTS 2220, #05-21, JTC Space @Tuas Mumbai-Pune Road, Kasarwadi, Singapore - 639533 Pune MH 411034 INDIA www.forbesmarshall.com P: +65 6219 3890 P: +91(0)20-68138555 F: +91(0)20-68138402 Forbes Marshall Arca E: ccmidc@forbesmarshall.com...
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