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<15. PED (PRESSURE EQUIPMENT DIRECTIVE)>
15-1
IM 01F06A00-01EN
15. PED (PRESSURE EQUIPMENT
DIRECTIVE)
This chapter is described further requirements and
notices concerning the PED (Pressure Equipment
Directive). The description in this chapter is prior to
other description in this Users Manual.
(1) Technical Data
Pressure Equipment Directive:
Type of equipment: piping
Type of uid: liquid and gas
Group of uid: 1 and 2
Module: H
MODEL
DN(mm)*
PS(MPa)*
PS·DN(MPa·mm)
CATEGORY**
DY015 15 42 630 Article 3,
Paragraph 3
(SEP)
DY025 25 42 1050 Article 3,
Paragraph 3
(SEP)
DY040 40 42 1680 II
DY050 50 42 2100 II
DY080 80 42 3360 II
DY100 100 42 4200 II
DY150 150 42 6300 III
DY200 200 42 8400 III
DY250 250 42 10500 III
DY300 300 42 12600 III
DY400 400 25 10000 III
* PS: Maximum allowable pressure for Flow tube, DN: Nominal
size
** Refered to Table 6 coverd by ANNEX II of EC Directive on
Pressure Equipment Directive 97/23/EC
(2) Installation
WARNING
Please tighten the bolts for piping joint
according to the appropriate torgue values.
Please take measure to protect the
owmeters from forces caused by vibration
through piping.
(3) Operation
WARNING
The temperature and pressure of uid should
be applied under the normal operating
condition.
The ambient temperature should be applied
under the normal operating condition.
Please pay attention to prevent the
excessive pressure like water hammer,
etc. When water hammer is to be occurred,
please take measures to prevent the
pressure from exceeding PS (maximum
allowable pressure) by setting the safety
valve, etc. at the system and the like.
• When external re is to be occurred, please
take safety measures at the device or
system not to in uence the owmeters.
Please pay attention not to abrade the
metal pipe, when using the uid to abrade
the metal pipe such as slurry and sand are
contained.
167


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