Ashcroft 8008 Istruzioni per l'installazione

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Ashcroft 8008 Istruzioni per l'installazione
Installation Instructions
for ASHCROFT
8008
®
Pressure Gauge
Applicable Standards:
EN 837-1
Bourdon tube pressure gauges, dimensions,
metrology, requirements and testing.
EN 837-2
Selection and installation recommendations
for pressure gauges.
ASME B40.100
Pressure gauges and gauge attachments
2014/68/EC
Pressure equipment directive.
Specifications:
Refer to Ashcroft Type 8008 data sheet
(Ash Bul HG-1) at www.ashcroft.com
1. SAFETY
  WARNING!
Before installation, be certain the appropriate gauge has
been selected considering operating pressure/full scale pres-
sure/proof pressure, wetted material requirements, media
compatibility, operating temperature, vibration, pulsation,
desired accuracy and any other gauge component related to
the service application (including the potential need for pro-
tective attachments and/or special installation requirements).
Failure to do so could result in equipment damage, gauge
failure and/or personal injury. Only qualified personnel should
be permitted to install and maintain pressure gauges.
2. INSTALLATION
When installing the gauge connection into the application,
use the wrench area (above the threaded portion) to thread
in and tighten the gauge. Do not use the gauge case to
install the gauge. This could result in loss of accuracy,
excessive friction, or mechanical damage to the pressure
element or gauge case.
The gauge connection must be compatible with the mating
connection and must be assembled appropriately. If the
mating parts do not seal completely, a sealing material may
be considered.
© 2016 Ashcroft Inc., 250 East Main Street, Stratford, CT 06614-5145, USA, Tel: 203-378-8281, Fax: 203-385-0357, www.ashcroft.com
All sales subject to standard terms and conditions of sale. I&M008-10248 Letter (8008) 09/16
Install with a
9/16˝ (63mm gauge)
or 7/8˝ (100mm gauge)
open end wrench.
Pressure gauge
sealing surfaces
Wrench flats
Thread sealing
Face sealing
After installation, pull up the blue cap on the fill/vent plug
to the full open position. Opening the vent plug will relieve
internal pressure changes in the gauge case that otherwise
would have been induced by environmental changes in
pressure and/or temperature. Without being vented this
change in internal pressure could adversely affect the accu-
racy of the gauge. If liquid filled, only open vent plugs when
the plug is oriented in the vertical position.
3. STORAGE
Gauge should remain in original packaging until installation.
This will protect from mechanical damage as well as
environmental conditions. Storage temperature range from
-40 °F to 158 °F (-40 °C to 70 °C).
4. MAINTENANCE/REPAIRS
Check regularly to ensure the gauge is in good working
order. When removing the gauge from the application make
sure there is no pressure in the system and all system media
has been isolated from the gauge. If gauge is damaged or
out of calibration a new gauge must be installed.
These gauges are not to be re-calibrated.
Misuse or misapplication of this gauge could result in gauge
failure, equipment damage and/or personal injury.