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Float & Probe Type Steel Water Columns & Standpipes
Steel Water Columns can be used up to 3000 PSI (200 Bar)

There are 3 purposes for Water Columns:

  • Support 1 or 2 water gage glasses

  • Float type high & low alarms

  • Probe type for alarms and low water cutout


Water Columns are not required on Power Boilers by ASME Boiler Code, but when specified, must be designed and manufactured to comply with Code.

Water Columns are considered to be a Standard Pressure Part as defined in PG-11 of the ASME Boiler Code. A code stamp or outside inspector for manufacturing is not required. Code recognized materials, qualified welding procedures by qualified personnel, and hydro testing are a must.

steel water column with simpliport 180
steel water column with glass gage
durastar new power supply on standpipe


  • Our SP Series of Standpipes serve as a compact column to support gage glasses, when probe alarms are not required.

  • Standpipes offer an economical solution for contractors by assuring the connections for the water gage connection is accurate and reduces the number of field welds.

  • Reliance Standpipes are constructed from heavy wall ASME-SA106 Grade B carbon steel pipe.

  • A wide variety of connections are available to meet your specifications.

  • Refer to our Order Selection Sheet (Ref: R406.009) to detail your specification and one of our Reliance Applications Engineers will assist you with our recommendations for a successful result.

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