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9

 

 

 

 

 
 

10.1 INSPECTION AND MAINTENANCE

 

SP-48-FD

 pilot because of its simple design does not require complicated maintenance procedures.

 

Checking and cleaning of gas tube and orifice-stabilizer assembly:

 

a)    Close the manual gas valve and disconnect the pilot gas line.  

b)    Disconnect the ignition rod electric supply cable.

 

c)    Unscrew the mounting ring.

 

d)    Carefully slide out the gas part assembly from the air tube. 

e) 

Check the ignition rod at least every 12 months. For checking and standard service do not remove the rod 
from the gas part. Follow the igniter User’s Manual. 
Pull out the electrical igniter

 only if it is absolutely necessary e.g. when rod is worn or damaged and has to 

be repaired or replaced.

  Before that, loose the ignition rod holding 

gland and then follow p. 7.2. 

 

Unscrew the rod tip before pulling out rod from the gas part and holding gland for easier slide without any 
jamming. 

f)    Check and clean the bleed orifice and main nozzle. For cleaning use a soft copper wire.  

g)    To remove heavy dirt use a soft wire brush e.g. copper wire brush.

 

h)    Blow compressed air through the whole gas part assembly.

 

i)    To  check  the  air  tube  condition  loosen  the  mounting  tube  clamp  assembly  screws  and  pull  out  air  tube. 

Check for overheating traces and clean it. If it is damaged – repair or replace it.

 

j)    Assemble all the elements back to obtain the original configuration.

 

Checking of ignition device:

 

k)   

Check 

the complete ignition device at least every 12 months. Follow instructions in its User's Manual.

 

 
10.2  TROUBLESHOOTING

 

If the gas pilot does not operate correctly check the following:

 

a)    All manual gas valves on gas supply line were open and there is gas available.

 

b)    All valves in the supply line are functioning properly.  

c)    The preset gas pressure is correct.

 

d)    The correct pilot air pressure is maintained.

 

e)    Gas and air supply lines are clear - check strainers.

 

f)    Bleed orifice and the main orifice in orifice-stabilizer assembly are clear

.

 

g)    Electric  ignition  device  is  working  correctly  and  its  rod  is  correctly  positioned  in  gas  part  assembly.  

If it is not working properly - follow the ignition device Manual.

 

h)    The power parameters for ignition device are correct.

 

If the gas lights but the flame is unstable, or goes out when main burner goes into operation, check that:

 

i)    The gas pressure does not drop during pilot light-off (trial for ignition).  

j)    The air pressure is always at the correct level.

 

k)    The  air  from  the  main  burner  does  not  blow  out  the  pilot  flame  or  does  not  move  it  out  of  the  field of 

view of the flame scanner (if applied).

 

l)    Flame 

safeguard s

ystem works correctly and the flame is not obscured.

 

Improper  operation  of  the  whole  installation  requires  detailed  checking  of  the  power  line and  all components, 
including any temporary use of override switches or jumpers.

 

Be aware of all connections to be later restored to normal state, to allow safe operation. 

 

 

11.  SPARE PARTS,  WARRANTY CONDITIONS 

11.1  

For start-up and warranty period it’s recommended to order following spare parts in quantity as below:  

 

a set of loose parts used on both sizes on pilots: 

SP-32

 and 

SP-48

 (see Fig. 5)  

- one for 4 pilots 

 

complete orifice-stabilizer assembly for 

SP-48-FD

 pilot, 

including:  

 

- one for 4 pilots 

main orifice nipple with gas tube, bleed orifice, swirler-stablizer, divider

  

 

 

Summary of Contents for SureFire II SP-48-NG-FD

Page 1: ...d each unit is checked and tested before dispatch Acquaintance with the following instructions and strict attention to the indications reduce the possibility of equipment failure to a minimum and ensu...

Page 2: ...xits the main nozzle at the outlet of the air tube The main flame then stabilizes in the primary combustion zone at the outlet of the air tube The swirler stabilizer plate and holes in air tube provid...

Page 3: ...he Fireye High Tension Igniter the end of the rod tip should be placed at a distance of 10 mm back from the swirler stabilizer see Fig 1 In case of the High Energy Spark Igniter the rod tip should be...

Page 4: ...ling the pilot burner please follow the rules below 6 1 Use pilot only for its intended purpose 6 2 At the time of installation operation and maintenance follow the procedures described in the instruc...

Page 5: ...he burner plate with a diameter slightly larger than the diameter of the mounting tube b The mounting tube for welding slide the mounting tube in the hole and set it in the correct position insertion...

Page 6: ...tors may be used c To ensure a long and trouble free operation of the pilot it should be kept clean Check the condition of the gas pipe and if the orifices are not blocked Remove all buildups Hoses sh...

Page 7: ...flame stabilizes at the end of the air tube and reaches a blue yellow color If the airflow is too low the end of the air tube may start to glow it starts to glow at 400 500 C as the main flame burns i...

Page 8: ...the flame after trial for ignition the valves are closed and electrical igniter is switched off i Eventual repeating of trial for ignition sequence depends on the application Details of sequence timin...

Page 9: ...does not operate correctly check the following a All manual gas valves on gas supply line were open and there is gas available b All valves in the supply line are functioning properly c The preset gas...

Page 10: ...intenance of igniter contrary to the instructions in the user manual unauthorized igniter modifications or repairs made by unauthorized personnel use of components or spare parts other than original 1...

Page 11: ...ght 3 0 m ins length The Table 2 below shows Part Numbers of gas igniter mounting tubes and spare parts Table 2 SureFire II Pilot Mounting Tubes Spare Parts Part No Description SP 48 MTF Mounting Tube...

Page 12: ...12 APPENDIX No 1 The Pilot capacity vs gas pressure graphs standard version Remark The real measured capacity may differ by 5 depending on a particular pilot and measurement conditions...

Page 13: ...us pilot on a sample main burner with gas spuds and central oil or gas gun vertical mounting The pilot air tube tip can be mounted in the throat or in the swirler Pilot tip cannot extend beyond the he...

Page 14: ...nd especially refinery gas Refinery Off Gas needs additional engineering and testing because their gas compositions and calorific values are different than these of NG PG and LPG taken for gas pilot d...

Page 15: ...5 cubic foot ft3 Air flow rate 1 cubic metre hour m3 h x 0 589 standard cubic foot min SCFM Weight 1 kilogram kg x 2 2046 pound lb Pressure 1 kilopascal kPa x 6 895 pound square inch gauge psig x 4 01...

Page 16: ...is found defective in material or workmanship or which otherwise fails to conform to the description of the product on the face of its sales order THE FOREGOING IS IN LIEU OF ALL OTHER WARRANTIES AND...

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