Flowserve Selfacting pressure regulator: EN

Whenthevalveisinstalledinthepiping:

• Whenworkingattemperaturesbelow 100 °Candwithliquids,

EN

ushingoftheactuatorisperformedusingtheupperventplug.

Inthecaseofvapoursandgases,thepressurereduction

valve/reliefvalveisreadyforuseoncetheconnectionshave

beenmade.

• Atworkingtemperaturesabove 100 °C,waterisfedthrough

thellnozzle oftherundowntankwiththesideventplug

ontheactuatoropeneduntilthewateremergeswithoutany

airbubbles.Closetheventplugandtopupwithwaterto35

mmbelowtheupperedgeofthellnozzle.Thepressure-

reductionvalve / reliefvalve is readyforuse once thell

openinghasbeenclosed.

• Continuously increase load until operation parameters are

reached.

Sudden exposure of the valve to the full working pressure and working

temperature may cause stress cracks.

• After the rst loading (trialrun)in depressurised and cool

condition, evenly tighten screw connections of sealing

componentscrosswise(ifrequired).

• Excessive levels of noise and vibration during operation

indicatecriticaloperatingconditionsandmustbeavoidedat

allcosts.

Impermissible continuous operation of valves under critical conditions can

damage the valves, as they are not designed to cope with this situation.

• Avoidfrequentsystemstart-upsandshutdowns.

Experience has shown that critical operating conditions, which can damage the

valve, are often encountered when starting up or shutting down the system.

• Keeptheoperatingmediumfreeofforeignparticles.

Foreign particles can damage the valve; this can be prevented by tting a suitable

dirt trap.

Bodily injury or damage to the control valve and its accessories as the result of non-

adherence to warning instructions, as well as transport damage and improper use

(e.g. as a climbing aid, etc.), will render the manufacturer’s guarantee null and void

and release him from any responsibility.

3. Maintenance

EN

Measure Interval

Visualinspectionforsoiling

andcorrosion

periodically

removeifnecessary

Noothermeasuresarenecessary-the

-

valveismaintenance-free

4. Repair Ifafaultordefectoccurswhich,accordingtothelistofmeasures

below,requiresthecustomerservicesdepartmentorcontract

partnertobecontacted,themanufacturer’sguaranteeshallbe

renderednullandvoid-andthemanufacturerreleasedfrom

anyresponsibility-unlessthecustomerservicesdepartment

orcontractpartnerisdulynotied.Ifthecustomerperformsthe

repairshimself,theseoperatinginstructionsandtherespective

disassembly/assemblyinstructionsmustbefollowedtotheletter

andcarriedoutinacompetentmanner.Originalreplacement

partsmustbeusedineverycase.

Control valves are pressure vessels!

Improper opening of the actuator or tting may result

in bodily injury!

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