Fort Vale Super Maxi 0R3/006 Series Manual de usuario
®
FORT VALE
Maintenance Manual
Super Maxi Relief Valve
AAR Specification
0R3/XXXX006X Series
MM050_REV01 03.05.18
This is an uncontrolled copy and will not be updated automatically.
Please refer to Fort Vale periodically for document revisions.
BEFORE ATTEMPTING DISASSEMBLY OR REMOVAL OF ANY FORT VALE
COMPONENT, ALWAYS DEPRESSURIZE AND DRAIN ANY PIPING SYSTEMS.
Prior to commencing any remedial work :
Prior to handling the valve, ascertain the last product carried and ensure that the valve has been correctly decontaminated.
Obtain a Material Safety Data Sheet for the last product carried and observe all the Health and Safety advice, particularly
with regards to P.P.E. (Personal Protection Equipment)
personnel
Servicing of valves should be conducted by a “Qualified Person”
The term “qualified person” relates to a person familiar with the installation, assembly, operation, applications and
limitations of the component. The person should have the qualifications corresponding to their responsibilities, such as
instruction and awareness to comply with all operational, regional and in-company regulations and requirements.
Limitations of use/Mis-use
Please observe the maximum allowable working pressure and the minimum/maximum allowable temperature range and
ensure that the valve is not operated outside these limitations. Use/operation outside these limits is at the risk of the user
and Fort Vale shall bear no responsibility for such actions.
Servicing
Fort Vale components are manufactured for longevity under normal and compatible working conditions. It is the
responsibility of the user to take into account the working conditions of the valve and to implement a regular service
schedule based upon individual circumstances. In addition, a thorough visual inspection of the valve should be made at
regular intervals to check for correct operation and signs of corrosion. It must be noted that working at extremes of
temperature and/or pressure will reduce the operational life of the valve between services.
AFTER ANY REMEDIAL WORK, ENSURE THAT THE VALVE IS LEAK TESTED PRIOR TO RETURNING TO SERVICE.
During service or testing, if any problem arises that cannot be resolved with the use of this Maintenance Manual, please
contact Fort Vale for further advice and assistance.
Risk assessment and hazard assessment
Fort Vale recommends a full and comprehensive risk and hazard assessment in accordance with national or local
legislation prior to servicing a valve. Not all service environments are the same and basic instructions may need to be
incorporated into the safe procedures for use of the end user. See examples below:
- Correct use of personal protection equipment when working with compressed gases
- Correct use of personal protection equipment when working with low temperature components
- Correct use of personal protection equipment when working with heavy components and the use of lifting equipment
- Training and competence of conducting pressure testing
Important Safety Notice
OPIN41 REV00-29.07.13
© Fort Vale Engineering Ltd. 2013
Page 1
Fort Vale Engineering Limited ·
·www.fortvale.com
Calder Vale Park, Simonstone Lane, Simonstone, Burnley, Lancashire BB12 7ND, U.K.
Tel : +44 (0)1282 687100 · Fax : +44 (0)1282 687110 · Email : [email protected]
Maintenance Safety Advice
®
Super Maxi Relief Valve - AAR Specification
CAUTION: The Super Maxi relief valve is a spring-loaded device. Exercise caution during maintenance and wear
the appropriate PPE.
Part number(s : 0R3/XXXX006X
Manual Contents
Tools Required
13mm/ ” A/F spanner & torque wrench
38mm/1 ” A/F spanner & torque wrench
Rocol® lubricant
Thread adhesive (eg. Loctite® 243)
Scribe
3/32” hex key
Hammer
Pillar drill - 4mm (No. 22) drill, 3/16”BSW tap
Bench press (1 tonne minimum)
Pressure test rig
Proprietary Tools Required - available from Fort Vale
Nylon lifting spacer - FIX/A/0035
Cap tightening tool - FIX/A/0034
Pressure adjustment tool - FIX/A/0015/23
Consumable Parts Required - available from Fort Vale
Pressure O ring - part number varies according to seal material. Please see data sheet USREL148 for details.
Always ensure that the seal material is compatible with the cargo and operating conditions.
Further components may be required, subject to wear and condition. Damaged, worn or corroded parts should
always be replaced with new parts. Please contact Fort Vale for part numbers and further advice if necessary.
Chapter 1 Complete Disassembly
Chapter 2 Complete Assembly
Chapter 3 Pressure Testing & Adjustment
Appendix USREL147 & USREL148 - Data Sheet
USREL185 - Part Number Breakdown
MM050_REV01© Fort Vale Engineering Ltd. 2018
THIS PAGE IS INTENTIONALLY BLANK
MM050_REV01© Fort Vale Engineering Ltd. 2018
Super Maxi Relief Valve - AAR Specification
Chapter 1
Super Maxi Relief Valve
Disassembly Procedure
This chapter covers complete disassembly of the valve.
N TE:
Depending upon the reason for service, every step may not be required.
Damaged, worn or corroded parts should be replaced with new.
All seals, gaskets and O rings should be replaced with new, unless
otherwise stated.
MM050_REV01© Fort Vale Engineering Ltd. 2018 Page 1
Super Maxi Relief Valve - AAR Specification
Step 1. Identify the valve. The part number will be
laser marked on the cap. If in doubt, contact Fort
Vale.
Step 2. Note that the cap is retained by an anti-
tamper screw filled with lead shot.
Step 3. Use a 4mm No. 22) drill and drill out the
lead shot and grubscrew. This will unlock the cap
from the body.
Step 4. Clean the hole using compressed air.
Caution: Wear appropriate eye PPE.
Step 5. Use a scribe to detach the stainless steel
plug.
Step 6. Remove the stainless steel plug.
MM050_REV01© Fort Vale Engineering Ltd. 2018 Page 2
Super Maxi Relief Valve - AAR Specification
Step 7. Select the nylon lifting spacer FIX/
A/0035) - dimensions as above.
Step 8. Locate the nylon lifting spacer FIX/
A/0035) onto a bench press. A minimum 1 tonne
press is required.
Step 9. Locate the valve onto the spacer. Ensure
that the body flange is located centrally.
Step 10. Select the cap tightening tool FIX/
A/0034). Locate the two pins on the tool into the
two blind holes on the cap.
Step 11. Ensure that the cap tightening tool is
located squarely on the cap.
Step 12. Apply pressure on the cap tightening
tool until the spring is compressed enough to allow
the valve body to rotate. Rotate the body
clockwise until it is disengaged from the cap.
WARNING: The valve is under spring load.
Exercise caution and wear the appropriate PPE.
MM050_REV01© Fort Vale Engineering Ltd. 2018 Page 3
Super Maxi Relief Valve - AAR Specification
Step 13. Slowly retract the ram to allow the spring
to decompress. WARNING: The valve is under
spring load. Exercise caution and wear the
appropriate PPE.
Step 14. When the spring is completely
decompressed, retract the ram so that the valve
can be disassembled.
Step 15. Remove the cap tightening tool. Step 16. Remove the cap. Inspect the cap for
damage. If damaged, contact Fort Vale.
Step 17. Remove the springs. Inspect the springs
for damage or corrosion. If damaged, contact Fort
Vale.
Step 18. Remove the pressure plate assembly.
MM050_REV01© Fort Vale Engineering Ltd. 2018 Page 4
Super Maxi Relief Valve - AAR Specification
Step 19. Remove the valve body. Inspect the
body for damage or corrosion. Pay particular
attention to the pressure plate sealing face and the
gasket sealing face. If damaged, contact Fort
Vale.
Step 20. Use a 13mm ½") spanner to loosen the
5/16" UNF nut on the pressure plate assembly.
Step 21. Remove the 5/16" UNF stud and nut. Step 22. Use a 13mm ½") spanner to remove the
5/16" nut from the stud. If the nut has seized, use
2x 5/16" nuts as shown to prevent damage to the
thread: Clamp nut 1 in a vice and tighten nut 2.
Unlock nut 3 by rotating it clockwise and counter-
clockwise. Remove nut 3.
Step 23. Use a wire brush to clean any adhesive
residue from the stud. Inspect the thread on the
stud. If it is damaged, replace the stud.
Step 24. To separate the inner and outer
pressure plate, insert a rod that is smaller in
diameter than the hole in the inner pressure plate.
Gently tap the rod with a hammer to disassemble
the inner pressure plate. Remove the retaining
washer.
MM050_REV01© Fort Vale Engineering Ltd. 2018 Page 5
Super Maxi Relief Valve - AAR Specification
Step 25. Inspect inner pressure plate and the
washer for damage or corrosion. If damaged,
contact Fort Vale.
Step 26. Remove the O ring and discard. Inspect
the outer pressure plate for damage or corrosion.
If damaged, contact Fort Vale. Disassembly is now
complete.
MM050_REV01© Fort Vale Engineering Ltd. 2018 Page 6
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