Pressure Equipment Directive 97/23/EC
Pressure Equipment Regulations 1999
Implemented in the UK by:
Statutory instrument 1999 no.2001 The
pressure equipment regulations. Effective 30 May 2002 onwards, and amended
by SI 2002/1267 The pressure equipment (amendment) regulations 2002 and SI
2015/399 The pressure equipment (amendment) regulations 2015.
These regulations apply to pressure equipment such as vessels, piping
(including heat exchangers), safety accessories (eg safety valves and
bursting discs) and pressure accessories where the maximum allowable
pressure is greater than 0.5 bar.
The regulations do not apply to our pumps and vent valves. Pumps are
excluded and the volume of vent valves are too small.
Strainers, however could be treated as pressure equipment depending on
the vapour pressure of the fluid, the fluid group (see below), the
strainer volume and the maximum pressure. Although in practice this is
unlikely to arise in most applications, it may occur if you will be using
a strainer with Group 1 fluids or alternatively with Group 2 fluids but
where the vapour pressure of the fluid at the maximum allowable
temperature is greater than 1.5 bar absolute.
- Group 1 fluids are dangerous, ie explosive, extremely flammable,
highly flammable, flammable (where the maximum allowable temperature is
above flashpoint), very toxic, toxic or oxidising.
- Group 2 fluids are fluids not in Group 1.