Parker Pneumatic 250B Series Installation & Service Instructions

WARNING
!
To avoid unpredictable system behavior that can cause personal injury
and property damage:
• Disconnect electrical supply (when necessary) before installation,
servicing, or conversion.
• Disconnect air supply and depressurize all air lines connected to
this product before installation, servicing, or conversion.
• Operate within the manufacturer's specified pressure, temperature,
and other conditions listed in these instructions.
• Medium must be moisture-free if ambient temperature is below
freezing.
• Service according to procedures listed in these instructions.
• Installation, service, and conversion of these products must be
performed by knowledgeable personnel who understand how
pneumatic products are to be applied.
• After installation, servicing, or conversion, air and electrical
supplies (when necessary) should be connected and the product
tested for proper function and leakage. If audible leakage is present,
or the product does not operate properly, do not put into use.
• Warnings and specifications on the product should not be covered
by paint, etc. If masking is not possible, contact your local
representative for replacement labels.
Introduction
Follow these instructions when installing, operating, or servicing the
product.
Application Limits
These products are intended for use in general purpose compressed
air systems only.
Operating Pressure Range:
Minimum*
Maximum
* For lower pressure or vacuum operation, solenoid(s) may be
externally piloted (35 PSIG min.) following the conversion
procedure in these instructions.
Ambient Temperature Range: -18°C to 52°C (0°F to 125°F)
Voltage Range: +10%, -15% of Rating
Installation & Operating Instructions
! CAUTION: Solenoid versions of this valve contain solid state
components that can be damaged by transient voltage spikes,
over-voltage or high temperature. To protect against premature
solenoid failure, please read and adhere to the following:
1. If this solenoid operated valve is used in a circuit with other
inductive loads, the solenoid should be electrically protected
with a voltage suppression device (e.g. transient voltage
suppressor or varistor) that has a minimum rating of 1.6 times
the rated voltage of the solenoid valve and sufficient capacity to
dissipate the energy of other inductive loads.
2. Valve should be installed with reasonable accessibility for service
whenever possible - repair service kits are available. Keep pipe
or tubing lengths to a minimum with inside clean and free of dirt
and chips. Pipe joint compound should be used sparingly and
applied only to the male pipe - never to the female port. Do not
use PTFE tape to seal pipe joints - pieces have a tendency to
break off and lodge inside the unit possibly causing malfunction.
Pneumatic Division
Richland, Michigan 49083
kPa PSIG bar
240 35 2.41
1030 150 10.3
Installation & Service Instructions:
V595P
Auto 250B Series Valves
ISSUED: December, 2003
Supersedes: None
Doc.# V-595P, ECN# 030893, Rev. 1
! CAUTION: It is recommended that double solenoid and double
remote air pilot operated 2-Position valves be mounted so
that the axis of the valve spool is in the horizontal plane. The
valve may be rotated 360° around the axis for mounting
convenience.
CAUTION: An interruption of 10 milliseconds or greater to the
!
power supplied to the solenoid of a solenoid operated valve
may cause the valve to shift. Provision must be made to prevent
power interruption of this duration to avoid unintended,
potentially hazardous, consequences.
Lubrication
All valves are pre-lubricated at assembly with a petroleum based
grease. Filtered and lubricated air is necessary for maximum valve
life and minimum maintenance. If in-service lubrication is used, F442
oil is recommended. This oil is specially formulated to provide peak
performance and maximum service life from all air operated equipment.
Otherwise, use a straight paraffin base mineral oil of viscosity 100-
200 SSU @ 100°F and an aniline point greater than 200°F.
NOTE: Once in-service lubrication is initiated, the practice should be
continued in order to maximize valve life.
CAUTION: Do not use synthetic, reconstituted, or oils with an
!
alcohol content or detergent additives.
WARNING
!
FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF
THE PRODUCTS AND/OR SYSTEMS DESCRIBED HEREIN OR
RELATED ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND
PROPERTY DAMAGE.
This document and other information from Parker Hannifin Corporation,
its subsidiaries and authorized distributors provide product and/or
system options for further investigation by users having technical
expertise. It is important that you analyze all aspects of your application,
including consequences of any failure and review the information
concerning the product or systems in the current product catalog. Due
to the variety of operating conditions and applications for these products
or systems, the user, through its own analysis and testing, is solely
responsible for making the final selection of the products and systems
and assuring that all performance, safety and warning requirements
of the application are met.
The products described herein, including without limitation, product
features, specifications, designs, availability and pricing, are subject
to change by Parker Hannifin Corporation and its subsidiaries at any
time without notice.
EXTRA COPIES OF THESE INSTRUCTIONS ARE AVAILABLE FOR
INCLUSION IN EQUIPMENT / MAINTENANCE MANUALS THAT UTILIZE
THESE PRODUCTS. CONTACT YOUR LOCAL REPRESENTATIVE.