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Stellar Industrial Technologies Your source for all your Safety and Pressure Relief Valve Needs . LARGE INVENTORY Our source has more than 18,000 valves in stock in over 4,000 varieties. Our source carries valves from 27 different manufacturers. Stellar Industrial Technologies

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Stellar Industrial Technologies

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


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LARGE INVENTORY

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

  • Our source carries valves from 27 different manufacturers.

Stellar Industrial Technologies


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LARGE INVENTORY

  • Most Extensive Kunkle Valve Stock in the industry.

Stellar Industrial Technologies


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Conbraco

Kingston

Aquatrol

Crosby

Farris

Anderson Greenwood

Consolidated

Fulflo

Lonergan

Crane

Lunkenheimer

And more!

LARGE INVENTORYOther Brands We Carry:

Stellar Industrial Technologies


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LARGE INVENTORYSurplus Sales

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

Stellar Industrial Technologies


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LARGE INVENTORYRemanufactured Valves


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LARGE INVENTORYRemanufactured Valves

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

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

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LARGE INVENTORYRemanufactured Valves

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

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LARGE INVENTORYRemanufactured Valves

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

Stellar Industrial Technologies


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LARGE INVENTORYRemanufactured Valves

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

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LARGE INVENTORYRemanufactured Valves

  • Machine flanges and seating surfaces to manufacturer specification


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LARGE INVENTORYRemanufactured Valves

  • Replace all gaskets, bolts and nuts

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LARGE INVENTORYRemanufactured Valves

  • Submit to New Valve testing standards

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LARGE INVENTORYRemanufactured Valves

BeforeAfter

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SHIPPING

  • Stellar ‘s source prides itself on shipping most customer orders the same day.

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Fastest Shipping in the Business

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

Stellar Industrial Technologies


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REPAIRS

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

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

  • We can turnaround most repairs in three days.


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How does a Safety Valve work?

The spring pushes

down on the disc

to create a seal with

the nozzle that lifts

at the valve set point.

Spring

Disc

Nozzle

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How does a Safety Valve work?

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

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SPRING

  • The spring is used to hold the

    nozzle and Disc together until

    the desired set point, at

    which the disc will lift

    off the nozzle and the

    valve will relieve.

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Disc & Nozzle

  • The disc is held tight against

    the nozzle by the spring to

    create a tight seating service.

    A common cause of valve

    leakage is debris or grit in the

    end users system scratching the

    nozzle or disc.

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Operation

  • Warn

    • Valve is ready to open

  • Pop

    • Valve opens

  • Blowdown

    • System Pressure has

      receded to below set

      pressure

  • Reseat

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Safety Valve Codes

  • ASME

    • Section I– Boilers

    • Section VIII—Tanks, Lines, Reducing Stations

    • Section IV---Hot Water Boilers/Low Pressure Boilers

    • VR--- Valve Repair Code

  • National Board (NB)

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Valve Selection

Step 1—Media

Liquid

Air

Gas

Steam

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Valve Selection

  • Step 2----- Set Pressure

    Popping Pressure

    Relieving Pressure

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Valve Selection

  • Step 3---Required Capacity

    LBS/HR

    SCFM

    GPM

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Valve Selection

  • Other Factors

    • Temperature

    • Corrosive media or environment

    • Back Pressure

    • Connections

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Trouble Shooting

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

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Trouble Shooting

  • EXAMPLE

  • A reducing valve reducing from 100 to 10 PSI

  • The Safety Valve cannot be set any lower than 15 PSI. It would be better to set it at 20 or 25, depending on the pressure that the downstream vessels could handle.

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Trouble Shooting

Is the valve mounted correctly?

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

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Trouble Shooting

Is the valve mounted correctly?

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

Stellar Industrial Technologies


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Troubleshooting

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

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Troubleshooting

  • Seating surface scratches

  • Dirt/grit/debris from the system is most commonly the culprit in leaks if all other questions are answered.

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

Stellar Industrial Technologies


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STELLAR INDUSTRIAL TECNOLOGIES

  • Thank you for your Business.

  • Any Questions.

  • End of Show


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