Stellar Industrial Technologies Your source for all your Safety and Pressure Relief Valve Needs.

Stellar Industrial Stellar Industrial TechnologiesTechnologies

Your source for all your Your source for all your Safety and Pressure Safety and Pressure Relief Valve NeedsRelief Valve Needs..

LARGE INVENTORYLARGE INVENTORY

Our source has more than Our source has more than 18,000 valves in stock in 18,000 valves in stock in over 4,000 varieties.over 4,000 varieties.

Our source carries valves Our source carries valves from 27 different from 27 different manufacturers.manufacturers.

Stellar Industrial Technologies

LARGE INVENTORYLARGE INVENTORY

Most Extensive Kunkle Valve Stock in the Most Extensive Kunkle Valve Stock in the industry.industry.


LARGE INVENTORYLARGE INVENTORYOther Brands We Carry:Other Brands We Carry:

ConbracoConbraco KingstonKingston AquatrolAquatrol CrosbyCrosby FarrisFarris Anderson Anderson

GreenwoodGreenwood

ConsolidatedConsolidated FulfloFulflo LonerganLonergan CraneCrane LunkenheimerLunkenheimer And more!And more!


LARGE INVENTORYLARGE INVENTORYSurplus SalesSurplus Sales

We buy up new valves that are no longer We buy up new valves that are no longer being made whenever available, so when being made whenever available, so when you need an extinct model, there is no you need an extinct model, there is no need to need to re-pipe. re-pipe.


LARGE INVENTORYLARGE INVENTORYRemanufactured ValvesRemanufactured Valves


We carry a large and varied We carry a large and varied selection of Remanufactured selection of Remanufactured Safety Valves with two Safety Valves with two tremendous benefitstremendous benefits

1. Lower Price—Remanufactured 1. Lower Price—Remanufactured valves save 40-60 percent over valves save 40-60 percent over new.new.



2. Longer Warranty—All Valves 2. Longer Warranty—All Valves remanufactured by our source remanufactured by our source carry a TWO-YEAR carry a TWO-YEAR WARRANTY. This is double the WARRANTY. This is double the warranty of new valves.warranty of new valves.



All Remanufactured Valves go All Remanufactured Valves go through a thorough process to through a thorough process to ensure they meet and/or exceed ensure they meet and/or exceed manufacturer specificationsmanufacturer specifications



Clean, Sandblast and inspect all parts Clean, Sandblast and inspect all parts to ensure they meet manufacturers to ensure they meet manufacturers tolerances.tolerances.



Machine flanges and seating surfaces Machine flanges and seating surfaces to manufacturer specificationto manufacturer specification


Replace all gaskets, bolts and nutsReplace all gaskets, bolts and nuts



Submit to New Valve testing Submit to New Valve testing standardsstandards



BeforeBefore AfterAfter


SHIPPINGSHIPPING Stellar ‘s source prides itself on Stellar ‘s source prides itself on

shipping most customer orders shipping most customer orders the same day.the same day.


Fastest Shipping in the Fastest Shipping in the BusinessBusiness

The boiler is on every day for testing The boiler is on every day for testing and shipping steam valves.and shipping steam valves.


REPAIRSREPAIRS

Our source is National Board Our source is National Board approved for all VR repairs of Safety approved for all VR repairs of Safety Valves.Valves.

Our source has a repair capacity of Our source has a repair capacity of 50 valves per week50 valves per week

We can turnaround most repairs in We can turnaround most repairs in three three daysdays..

The spring pushesThe spring pushes

down on the discdown on the disc

to create a seal with to create a seal with

the nozzle that lifts the nozzle that lifts

at the valve set point.at the valve set point.

SpringSpring

DiscDisc

NozzleNozzle

How does a Safety Valve How does a Safety Valve work?work?


How does a Safety Valve How does a Safety Valve work?work?

A Safety Valve is a very simple A Safety Valve is a very simple device. Two pieces of metal are device. Two pieces of metal are squeezed together by force squeezed together by force provided by a spring. When the provided by a spring. When the counter pressure from below counter pressure from below exceeds the spring pressure, the exceeds the spring pressure, the disc lifts, relieving pressure from disc lifts, relieving pressure from the system.the system.


SPRINGSPRING

The spring is used to hold theThe spring is used to hold the

nozzle and Disc together untilnozzle and Disc together until

the desired set point, atthe desired set point, at

which the disc will liftwhich the disc will lift

off the nozzle and theoff the nozzle and the

valve will relieve.valve will relieve.


Disc & NozzleDisc & Nozzle

The disc is held tight against The disc is held tight against

the nozzle by the spring to the nozzle by the spring to

create a tight seating service.create a tight seating service.

A common cause of valve A common cause of valve

leakage is debris or grit in the leakage is debris or grit in the

end users system scratching the end users system scratching the

nozzle or disc.nozzle or disc.


OperationOperation

WarnWarn Valve is ready to openValve is ready to open

PopPop Valve opensValve opens

BlowdownBlowdown System Pressure has System Pressure has receded to below set receded to below set pressurepressure

ReseatReseat


Safety Valve CodesSafety Valve Codes

ASMEASME Section I– BoilersSection I– Boilers Section VIII—Tanks, Lines, Reducing Section VIII—Tanks, Lines, Reducing

StationsStations Section IV---Hot Water Boilers/Low Section IV---Hot Water Boilers/Low

Pressure BoilersPressure Boilers VR--- Valve Repair CodeVR--- Valve Repair Code

National Board (NB)National Board (NB)


Valve SelectionValve Selection

Step 1—MediaStep 1—MediaLiquidLiquid

AirAir

GasGas

SteamSteam



Step 2----- Set PressureStep 2----- Set Pressure

Popping PressurePopping Pressure

Relieving PressureRelieving Pressure



Step 3---Required CapacityStep 3---Required Capacity

LBS/HRLBS/HR

SCFMSCFM

GPMGPM



Other FactorsOther FactorsTemperatureTemperatureCorrosive media or environmentCorrosive media or environmentBack PressureBack PressureConnectionsConnections


Trouble ShootingTrouble Shooting

#1 reason– System operating #1 reason– System operating pressure is too close to the pressure is too close to the valve’s set pressure. Safety valve’s set pressure. Safety valves require a 5 psi or 10% valves require a 5 psi or 10% difference between the operating difference between the operating and set pressure (whichever is and set pressure (whichever is greater) for the valve to work greater) for the valve to work properly.properly.


Trouble ShootingTrouble Shooting EXAMPLEEXAMPLE A reducing valve A reducing valve

reducing from 100 to 10 PSIreducing from 100 to 10 PSI The Safety Valve cannot be set The Safety Valve cannot be set

any lower than 15 PSI. It would be any lower than 15 PSI. It would be better to set it at 20 or 25, better to set it at 20 or 25, depending on the pressure that the depending on the pressure that the downstream vessels could handle.downstream vessels could handle.



Is the valve mounted correctly?Is the valve mounted correctly?

Most safety valves are designed Most safety valves are designed to operate in a vertical position to operate in a vertical position only. A valve mounted only. A valve mounted horizontally or upside down horizontally or upside down can not operate as intended.can not operate as intended.



Is the valve mounted correctly?Is the valve mounted correctly?

Outlet piping should be Outlet piping should be supported by something other supported by something other than the valve itself. If the than the valve itself. If the piping is not supported it can piping is not supported it can strain the valve and cause the strain the valve and cause the internals to align improperlyinternals to align improperly


TroubleshootingTroubleshooting

Pipe dope or Teflon tape is often Pipe dope or Teflon tape is often the culprit in leaking valves. the culprit in leaking valves. When installed, care should be When installed, care should be taken to ensure that it is not too taken to ensure that it is not too low on the threads. If this gets low on the threads. If this gets into the valve, it can stick on the into the valve, it can stick on the seating surface and cause a seating surface and cause a constant leakconstant leak..


TroubleshootingTroubleshooting

Seating surface scratchesSeating surface scratches Dirt/grit/debris from the system is most Dirt/grit/debris from the system is most

commonly the culprit in leaks if all commonly the culprit in leaks if all other questions are answered. other questions are answered.

This grit goes through the valve and This grit goes through the valve and scratches the nozzle, disc or both, scratches the nozzle, disc or both, causing an incomplete seal and the causing an incomplete seal and the valve leakage.valve leakage.


STELLAR STELLAR INDUSTRIAL INDUSTRIAL

TECNOLOGIESTECNOLOGIESThank you for your Thank you for your Business.Business.

Any Questions.Any Questions.

End of ShowEnd of Show

Stellar Industrial Technologies Your source for all your Safety and Pressure Relief Valve Needs.

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Transcript of Stellar Industrial Technologies Your source for all your Safety and Pressure Relief Valve Needs.