Emerson Asco 642 Series Installation And Maintenance Instructions Manual

These operating instructions are delivered with each product.
Malfunctions, damage or injury may occur if these instructions are not
followed.
Description
Series 642 Air Filter Regulators are designed for use in potentially explosive
atmospheres caused by gases, vapors, mists and/or dusts as per ATEX Directive
2014/34/EU and standards EN ISO 80079-36. UKSI Regulation 2016 : 1107 (as
amended by UKSI 2019:696)- Annex 3A, Part 1 after ATEX directive and BS
EN ISO 80079-36 (2016)
Classification (Zone 1 and 21): II 2 G Ex h IIC T5 Gb, II 2 D Ex h IIIC T5 Db
The Classification temperature depends on the ambient temperature. These
regulators are made of external metal parts & internal with plastic/metal parts.
Startup and maintenance are to be performed as detailed below.
General
This component is not a safety accessory. It is intended only for the compliant
use either as an individual component or incorporated in an apparatus,
machinery and installations. Filter Regulators are designed to be operated in
accordance with the limits specified in the nameplate or as specified in this
document. All applicable directives, legislations, orders and standards, as
amended from time to time, as well as state-of-the-art practices and procedures
must be observed for intended scope of application of the product. Where
applicable take all appropriate measure to ensure the requirements are met. This
device complies with the essential safety requirements of the EU PED
2014/68/EU. Declaration of conformity is available on request.
All assembly, operation, use and maintenance must be performed by
qualified, authorized personnel. Personnel working with the components must
be familiar with the applicable safety and regulations relating to the components,
apparatus and machinery installations. In case of problems, please contact
ASCO or one of its authorized representatives in your region.
General Operating Specifications
Fluid: Instrument air
Ambient Temperature: For manual drain: the temperature range should be within
-40 C to + 90 C (-40F to +194F); For Auto drain: the range should be within
+1°C to + 80°C (34°F to +176°F).
Inlet Pressure: Do not exceed the maximum operating pressure 20 bar(290psi)
for manual drain FR, 17bar(247psi) for auto drain FR.
Installation
Check the preliminary storage conditions required for the component. They must
be in accordance with the product's specifications.
Carefully remove the Filter Regulator from the packaging.
Power off and depressurize the apparatus, machinery or installation designed to
receive the FR.
Install the FR near where the air is to be used.
Install ASCO pressure gauge comes accessory on the gauge port. & Do Not
modify the device.
Make sure that the fluid is compatible with the materials it contacts.
Operator or user must ensure that the gas group corresponds to the product's
classification.
Check Nameplate for correct catalog number, pressure, temperature and service.
Never apply incompatible fluids or exceed pressure rating of the regulator.
The installer must install the air filter regulator at the user's location in
accordance with the requirements specified in Directive 99/92/EC.
Positioning
For optimum life and performance, the FR should be mounted
vertically upright (Max. Inclination 5°).
ASCO NUMATICS INDIA Pvt Ltd.,
Plot No P45, 8th Avenue, Mahindra world city
Chengalpattu, Kanchipuram
Tamil nadu- 603002, India
INSTALLATION AND MAINTENANCE INSTRUCTIONS
ALUMINIUM FILTER REGULATOR
SIZE: 1/4" & 1/2"
Piping
Connect piping to valve according to markings on FR body. Apply pipe
compound sparingly to male pipe threads only. If applied to FR threads, the
compound may enter the FR and cause functional difficulty. Avoid pipe strain
by properly supporting and aligning piping. When tightening the pipe, do not
use the FR as a lever. Locate wrenches applied to piping as close as possible to
connection point.
Direct Frontal mounting or mounting with brackets possible.
Maintenance
NOTE: Ensure the air supply is completely stopped. It is not necessary to remove
the FR from the pipeline for repairs.
Cleaning
All FRs should be cleaned periodically. The time between cleanings will
vary depending on the medium and service conditions. The most common part
that requires cleaning is the filter element.
Use running water for regular cleaning or a mild detergent for cleaning the
filter element. Do not use diluted acids, strong detergents or corrosive chemicals.
For auto drain version clean the filter ring periodically.
Causes of Improper Operation
Incorrect pressure: Check upstream pressure. Pressure to FR must be within
range specified on nameplate.
Excessive Leakage: Disassemble FR and clean all parts. If parts are worn or
damaged, install a complete ASCO Spare Parts kit.
Manual drain operation:
Hold the knurling face of drain with fingers & rotate it to the anti-clockwise
direction looking from top to unscrew the manual drain to purge out the water
that accumulated in the bowl. After draining out, screw the manual drain back
to its original position & ensure proper working of AFR.
Earthing:
The earth is connected to the unit or to the combination of conditioning units by
the downstream and upstream use of metal pipes connected to the earth. If the
pipes are non-conductive, earth connection should be performed by the assembly
and/or fixing devices adapted to the ATEX products.
Automatic draining:
Auto drain provides hassle free draining of equipment which purge out the water
accumulated in the bowl automatically. It also provides manual drain feature
integrated with automatic drain. Anti-clockwise to drain & clockwise to close
drain when looking from top view.
FORM NO: 551462-001
REV: AC
ECN: 326819
: 1
PAGE NO
SERIES
642