ASCO Valves 8210 Series Installation & Maintenance Instructions

Installation & Maintenance Instructions
NOTICE: See separate solenoid installation and maintenance
instructions for information on: Wiring, Solenoid Temperature,
Cause of Improper Operation, Coil or Solenoid Replacement.
DESCRIPTION
Series 8210 valves are 2-way normally closed internal pilot-operated
solenoid valves designed for general service. Valves are made of rugged
forged brass. Series 8210 valves are provided with a general
purpose/watertight, open-frame or explosionproof/watertight solenoid.
OPERATION
Normally Closed: Valve is closed when solenoid is de-energized;
open when energized.
IMPORTANT: Minimum operating pressure differential is 5 psi.
Manual Operator (optional feature)
Manual operator allows manual operation when desired or during an
electrical power outage. To engage manual operator (open the valve),
turn lever clockwise until it hits a stop. Valve will now be in the same
position as when the solenoid is energized. To disengage manual
operator (close the valve), turn lever counterclockwise until it hits a
stop.
To engage, turn lever
clockwise until it
hits a stop.
CAUTION: For valve to operate electrically, manual
operator lever must be fully rotated counterclockwise.
INSTALLATION
Check nameplate for correct catalog number, pressure, voltage,
frequency, and service. Never apply incompatible fluids or exceed
pressure rating of the valve. Installation and valve maintenance to be
performed by qualified personnel.
Future Service Considerations
Provision should be made for performing seat leakage, external
leakage, and operational tests on the valve with a nonhazardous,
noncombustible fluid after disassembly and reassembly.
50 Hanover Road, Florham Park, New Jersey 07932 www.ascovalve.com
2-WAY INTERNAL PILOT-OPERATED
SOLENOID VALVES - GENERAL SERVICE
NORMALLY CLOSED OPERATION
1I, 1-1/4I OR 1-1/2I NPT
Partial view of
Manual Operator
Temperature Limitations
Valves with design change letter K" or P" within the catalog number
(example: 8210K004) have a maximum fluid temperature of 180_F.
Refer to separate solenoid Installation and Maintenance Instructions
for maximum ambient temperature.
Positioning
This valve is designed to perform properly when mounted in any
position. However, for optimum life and performance, the solenoid
should be mounted vertically and upright to reduce the possibility of
foreign matter accumulating in the solenoid base sub-assembly area.
Piping
Connect piping to valve according to markings on valve body. Apply
pipe compound sparingly to male pipe threads only. If applied to
valve threads, the compound may enter the valve and cause
operational difficulty. Avoid pipe strain by properly supporting and
aligning piping. When tightening the pipe, do not use valve or
solenoid as a lever. Locate wrenches applied to valve body or piping
as close as possible to connection point.
IMPORTANT: To protect the solenoid valve, install a
strainer or filter suitable for the service involved in the inlet
side as close to the valve as possible. Clean periodically
depending on service conditions. See ASCO Series 8600,
8601 and 8602 for strainers.
MAINTENANCE
WARNING: To prevent the possibility of death,
serious injury or property damage, turn off electrical
power, depressurize valve, and vent fluid to a safe area
before servicing the valve.
NOTE: It is not necessary to remove the valve from the pipeline for
repairs.
Cleaning
All solenoid valves should be cleaned periodically. The time between
cleanings will vary depending on the medium and service conditions.
In general, if the voltage to the coil is correct, sluggish valve operation,
excessive noise or leakage will indicate that cleaning is required. In
the extreme case, faulty valve operation will occur and the valve may
fail to open or close. Clean strainer or filter when cleaning the valve.
Preventive Maintenance
S Keep medium flowing through the valve as free from dirt and
foreign material as possible.
S Periodic exercise of the valve should be considered if ambient or
fluid conditions are such that corrosion, elastomer degradation,
fluid contamination build up, or other conditions that could
impede solenoid valve shifting are possible. The actual frequency
of exercise necessary will depend on specific operating conditions.
A successful operating history is the best indication of a proper
interval between exercise cycles.
S Depending on the medium and service conditions, periodic
inspection of internal valve parts for damage or excessive wear is
recommended. Thoroughly clean all parts. If parts are worn or
damaged, install a complete rebuild kit.
E176963
SERIES
8210
I&M No.V7506
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