18
Issue 1 06/02/20
5
Before Installation
5.3 Choice of Location
• Steam heating plants unless additional and appropriate
safety devices are installed.
• Situations where maintenance is likely to be neglected or
safety devices tampered with.
• Water supplies that have either inadequate pressure or
where the supply may be intermittent.
• Situations where it is not possible to safely pipe away any
discharge from the safety valves.
• In areas where the water consistently contains a high
proportion of solids, e.g. suspended matter that could block
the strainer, unless adequate filtration can be ensured.
• In areas where the water supply contains chloride levels that
exceed 250mg/l.
The cylinder must be vertically floor mounted. Although location
is not critical, the following points should be considered:
• The cylinder should be sited to ensure minimum dead leg
distances, particularly to the point of most frequent use.
• Avoid siting where extreme cold temperatures will be
experienced. All exposed pipe work should be insulated.
• The discharge pipework from the safety valves must have
minimum fall of 1:200 from the unit and terminate in a safe
and visible position.
• Access to associated controls must be available for the
servicing and maintenance of the system. Where these
controls are installed against a wall a minimum distance of
250mm must be left.
• Ensure that the floor area for the cylinder is level and
capable of permanently supporting the weight when full of
water.
See
Weights can be found in section 3.1 page 8.
Min 250mm
Min 250mm
Min 600mm
Fig. 9
