Spirax Sarco TD120 Installation And Maintenance Instructions Manual Download Page 2

IM-P150-07 

 ST Issue 4

2

1. Safety information

Safe  operation  of  this  product  can  only  be  guaranteed  if  it  is  properly  installed, 
commissioned,  used  and  maintained  by  qualified  personnel  (see  Section  1.11)  in 
compliance with the operating instructions. General installation and safety instructions 
for  pipeline  and  plant  construction,  as  well  as  the  proper  use  of  tools  and  safety 
equipment  must  also  be  complied  with.

Warning

The cover gasket contains a thin stainless steel support ring which may cause physical 
injury if not handled and disposed of carefully.

1.1  Intended use

Referring  to  the  Installation  and  Maintenance  Instructions,  name-plate  and  Technical 
Information Sheet, check that the product is suitable for the intended use /application. 
This  product  complies  with  the  requirements  of  the  European  Pressure  Equipment 
Directive 97/23/EC and all falls within category 'SEP'. It should be noted that products 
within this category are required by the Directive not to carry the  mark. 

i)  This  product  has  been  specifically  designed  for  use  on  steam,  air  or  condensate/

water, which is in Group 2 of the above mentioned Pressure Equipment Directive. 
The  products’  use  on  other  fluids  may  be  possible  but,  if  this  is  contemplated, 
Spirax  Sarco  should  be  contacted  to  confirm  the  suitability  of  the  product  for  the 
application being considered.

ii)  Check  material  suitability,  pressure  and  temperature  and  their  maximum  and 

minimum  values.  If  the  maximum  operating  limits  of  the  product  are  lower  than 
those  of  the  system  in  which  it  is  being  fitted,  or  if  malfunction  of  the  product 
could  result  in  a  dangerous  overpressure  or  overtemperature  occurrence,  ensure 
a  safety  device  is  included  in  the  system  to  prevent  such  over-limit  situations.

iii)  Determine  the  correct  installation  situation  and  direction  of  fluid  flow. 

iv)  Spirax  Sarco  products  are  not  intended  to  withstand  external  stresses  that  may 

be  induced  by  any  system  to  which  they  are  fitted.  It  is  the  responsibility  of  the 
installer to consider these stresses and take adequate precautions to minimise them.

v)  Remove protection covers from all connections and protective film from all name-

plates,  where  appropriate,  before  installation  on  steam  or  other  high  temperature 
applications.

Summary of Contents for TD120

Page 1: ...ic Steam Trap Installation and Maintenance Instructions IM P150 07 ST Issue 4 1500050 4 1 Safety information 2 General product information 3 Installation 4 Commissioning 5 Operation 6 Maintenance 7 Spare parts Printed in the UK Copyright 2007 ...

Page 2: ...fically designed for use on steam air or condensate water which is in Group 2 of the above mentioned Pressure Equipment Directive The products use on other fluids may be possible but if this is contemplated Spirax Sarco should be contacted to confirm the suitability of the product for the application being considered ii Check material suitability pressure and temperature and their maximum and minimu...

Page 3: ...hocks 1 7 Pressure systems Ensure that any pressure is isolated and safely vented to atmospheric pressure Consider double isolation double block and bleed and the locking or labelling of closed valves Do not assume that the system has depressurised even when the pressure gauge indicates zero 1 8 Temperature Allow time for temperature to normalise after isolation to avoid danger of burns 1 9 Tools ...

Page 4: ...e product from an installation refer to Maintenance instructions 1 14 Freezing Provision must be made to protect products which are not self draining against frost damage in environments where they may be exposed to temperatures below freezing point 1 15 Disposal Unless otherwise stated in the Installation and Maintenance Instructions this product is recyclable and no ecological hazard is anticipa...

Page 5: ... 23 EC Certification This product is available with certification to EN 10204 3 2 Note All certification inspection requirements must be stated at the time of order placement Note For additional information see Technical Information Sheet TI P150 01 2 2 Sizes and pipe connections and 1 Butt weld ends to suit Schedule 160 pipe and 1 Socket weld ends to ANSI B 16 11 Class 6000 DN15 and DN25 standard...

Page 6: ...bar g 522 C 3626 psi g 972 F TMA Maximum allowable temperature 550 C 153 bar g 1022 F 2220 psi g Minimum allowable temperature 29 C 20 F PMO Maximum operating pressure 250 bar g 3626 psi g for saturated steam service TMO Maximum operating temperature 550 C 153 bar g 1022 F 2220 psi g Minimum operating temperature 0 C 32 F Note For lower operating temperatures consult Spirax Sarco PMOB Maximum oper...

Page 7: ... leg preceding the trap Access for removal of the integral strainer screen should also be provided 3 5 Suitable isolation valves must be installed to allow for safe maintenance and trap replacement Where the trap discharges into a closed return system a non return valve should be fitted downstream to prevent flow 3 6 Always open isolation valves slowly until normal operating conditions are achieved ...

Page 8: ...ference to venting air Initial start up can take several hours or days to bring the system to normal operating pressure and temperature Even if the trap has replaced another trap while the main system has remained running it may still be necessary to vent air from the drop leg If the trap is some distance from stop valve A Figure 2 it could be possible to air lock the pipework between valve A and ...

Page 9: ...Stop valve A Stop valve B TD120 Strainer Optional Dirt pocket dirt leg To drain or return To drain or return Fig 2 Typical installation Alternative layout Suggested drop leg if the TD120 is located more than 2 m 6 away from the main drop leg To drain ...

Page 10: ...ng torques see Table 1 After 24 hours in service and when reassembling the nuts should be tightened in a diagonally opposite sequence Open the isolation valves slowly until normal operating conditions are achieved Check for leaks 6 2 How to clean or replace the strainer Access to the strainer screen can be obtained by undoing the nuts 8 and removing the bottom cover Remove the strainer screen 4 Fi...

Page 11: ...IM P150 07 ST Issue 4 11 Table 1 Recommended tightening torques or Item Part N m lbf ft mm 4 22 A F 25 35 18 26 8 Nut 23 A F M16 160 180 118 132 8 Stud M16 85 90 62 5 66 8 2 6 7 7 4 8 Fig 3 ...

Page 12: ... Set of internals 2 7 2 off 4 Strainer screen 4 7 Set of cover gaskets 7 2 off Set of cover studs and nuts 8 8 off 9 How to order spares Always order spares by using the description given in the column headed Available spares and state the size and type of trap Example 1 Strainer screen for a Spirax Sarco DN15 TD120 thermodynamic steam trap Fig 3 8 8 4 7 2 7 8 8 ...

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