Boiler house Blowdown vessels
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Pressure/temperature limits
Please note: For the application of boiler blowdown and to comply with the HSE Guidance Note Blowdown Systems, Guidance for Industrial Steam Boilers (Ref: BG03) the vessel internal pressure should not exceed 0.35 bar g. Body design conditions PN16 Maximum design pressure 7 bar g @ 171 °C Maximum design temperature 171 °C @ 7 bar g Minimum design temperature -10 °C Maximum operating pressure re. Blowdown Systems, Guidance or Industrial Steam Boilers (Ref: BG03) 0.35 bar g Maximum operating temperature re. Blowdown Systems, Guidance for Industrial Steam Boilers (Ref: BG03) 109 °C Minimum operating temperature 0 °C Designed for a maximum cold hydraulic test pressure of 11 bar g
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Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions supplied with the product.
Maintenance note: The vessel must be drained every six months to remove concentrated blowdown water/sludge. Before reusing, the vessel must be refilled with fresh water. Blowdown vessels should be thoroughly examined by a 'competent person' every 14 months or at every major boiler inspection. Spare parts: New gaskets for the inspection openings are available as spares from Spirax Sarco.
Note: There is a second inspection opening on the BDV60/6, BDV60/8 and BDV60/10 which is fitted 180 ° to the top opening. Other sizes have a single central opening, similar to the one shown on page 2.
TI-P405-33 EMM Issue 9
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BDV60 Blowdown Vessels
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