Read Probe Flanges for External Level Control Chambers text version


AB Issue 4

Cert. No. LRQ 0963008 ISO 9001

Probe Flanges for External Level Control Chambers


These flanges are designed to allow the fitting of Spirax Sarco level control / alarm probes to existing float-type boiler side chambers.

Available types

Square flanges Round flanges 114 mm or 133 mm. 178 mm, 222 mm or 275 mm.

All flanges centrally tapped ½" or 1" BSP.

Limiting conditions

The maximum working pressure and temperature is dependent on the chamber to which the flange is fitted, up to a maximum pressure of 32 bar g at 239°C.


Carbon steel BS 4360 Gr. 43A. Painted finish. Square flange

Dimensions (approximate) in millimetres Square flanges Overall Mounting hole Mounting hole Mounting holes dimensions centres diameter No. 114 86 15 4 133 100 15 4

Round flanges Outside Mounting hole diameter PCD 178 146 222 191 275 235 Mounting hole Mounting holes diameter No. 15 8 19 6 22 8

How to order example:

1 off Spirax Sarco 114 mm square probe flange tapped ½" BSP. Round flange

Local regulations may restrict the use of this product to below the conditions quoted. In the interests of development and improvement of the product, we reserve the right to change the specification.

© Copyright 2004


Probe Flanges for External Level Control Chambers

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