YOKOGAWA VY Series User Manual

9. APPLICABLE STANDARDS
PED (Pressure Equipment
Directive)
This chapter describes further requirements and
cautions concerning the PED (Pressure Equipment
Directive).
Be sure to read this chapter ahead of the User’s
Manual.
(1) Specications
PED (Pressure Equipment Directive):
Type of equipment: Pressure accessory – Piping
Type of uid: liquid and gas
Group of uid: 1 and 2
Module: H
MODEL
DN (*1)
(mm)
PS (*1) PS•DN (*1)
CATEGORY (*2)
(bar) (MPa)
(bar∙
mm)
(MPa∙
mm)
VY015 15 414 41.4 6210 621
Sound
Engineering
Practice (SEP) (*3)
VY025 25 414 41.4 10350 1035
VY040 40 414 41.4 16560 1656 II (*4)
VY050 50 414 41.4 20700 2070 II (*4)
VY080 80 414 41.4 33120 3312 II (*4)
VY100 100 414 41.4 41400 4140 II (*4)
VY150
(*5)
150 414 41.4 62100 6210 III
VY200 200 414 41.4 82800 8280 III
VY250 250 414 41.4 103500 10350 III
VY300 300 414 41.4 124200 12420 III
VY400 400 250 25 100000 10000 III
*1: PS: Maximum allowable pressure for ow tube, DN:
Nominal diameter
*2: Table 6 covered by ANNEX II of Directive 2014/68/
EU
*3: Article 4, paragraph 3 of Directive 2014/68/EU
*4: Models classied as Category II cannot be used for
unstable gases in Group 1.
*5: VY150 with nickel alloy CW-12MW body material is
not compliant with PED.
(2) Installation
WARNING
• When installing on piping, rmly tighten the bolts
at the appropriate torque values.
• Take measures to protect the owmeter from
force caused by vibration through piping.
(3) Operation
WARNING
• The temperature and pressure of the uid
should be applied under normal operating
conditions.
• The ambient temperature should be applied
under normal operating conditions.
• Pay attention to prevent excessive pressure
such as water hammer. When water hammer
occurs, take measures such as installing a
safety valve on the system to prevent the
pressure from exceeding PS (maximum
allowable pressure).
• When an external re occurs, take safety
measures at the device or system to prevent the
owmeter from being a󰀨ected.
• Pay attention to abrasion of metal pipes when
using abrasive uids that contain slurry or sand
and the like.
<9. Applicable Standards>
48
IM 01F07A01-01EN

YOKOGAWA VY Series Specifications

General

Brand	YOKOGAWA
Model	VY Series
Category	Measuring Instruments
Language	English