ASCO Valves 8210 Series Installation & Maintenance Instructions

Installation & Maintenance Instructions
2-WAY INTERNAL PILOTED-OPERATED SOLENOID VALVES
NORMALLY OPEN OPERATION — GENERAL SERVICE
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 open 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
solenoid enclosure.
Series EF8210 and 8211 are the same as Series 8210 except they are
provided with an explosionproof or explosionproof/watertight solenoid
enclosure.
Notice: These valves are not certifi ed as lead-free under the Safe
Water Drinking Act SWDA 1417 and are not intended for use on
drinking water systems. They are intended for control of water in
industrial applications. Consult ASCO for valves rated for use in
potable water applications.
OPERATION
Normally Open: Valve is open when solenoid is de-energized; closed
when energized.
IMPORTANT: Minimum operating pressure differential required
is 5 psi.
Manual Operator (optional feature)
Manual operator allows manual operation when desired
or during an electrical power outage. To engage manual
operator (close the valve), insert screwdriver and turn
stem clockwise until it stops. Valve will now be in the
same position as when the solenoid is energized. To disengage manual
operator (open the valve), turn stem counterclockwise until it stops.
CAUTION: For valve to operate electrically, manual
operator stem must be fully rotated counterclockwise.
INSTALLATION
Check nameplate for correct catalog number, pressure, voltage,
frequency, and service. Never apply incompatible fl uids or exceed
pressure rating of the valve. Installation and valve maintenance to be
performed by qualifi ed personnel.
Future Service Considerations
Provision should be made for performing seat leakage, external leakage,
and operational tests on the valve with a nonhazardous, noncombustible
fl uid after disassembly and reassembly.
Temperature Limitations
For maximum valve ambient and fl uid temperatures, refer to chart
below. Check catalog number and watt rating on nameplate.
Watt
Catalog
Rating
Number
Prefi x
AC or DC
None, KF, SF
15.4 OR 16.1
or SC
HT, KH, ST or
AC
SU
16.8
None or HT
DC
ASCO Valves®
©ASCO Valve, Inc. 50 Hanover Road, Florham Park, New Jersey 07932
3/4" NPT
Max. Max.
Solenoid
Amb. Fluid
Class
Temp. Temp.
125 °F 180 °F
F
(51.7 °C) (82°C)
140 °F 180 °F
H
(60 °C) (82°C)
77 °F 180 °F
F or H
(25°C) (82°C)
E243876- 3/14
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.
Mounting
For mounting bracket (optional feature) dimensions, refer to Figure1.
[Ø8,7]
.343 dia. (2 holes)
Figure 1. Mounting bracket dimensions
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
diffi culty. 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.
CAUTION: To protect the solenoid valve, install a strainer
or fi lter 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 and 8601 for
strainers.
MAINTENANCE
WARNING: To prevent the possibility of death,
serious injury or property damage, turn off electrical
power, depressurize valve, and vent fl uid 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 fi lter when cleaning the valve.
Preventive Maintenance
•
Keep the medium fl owing through the valve as free from dirt and
foreign material as possible.
•
While in service, the valve should be operated at least once a month
to insure proper opening and closing.
•
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 ASCO Rebuild Kit.
All Rights Reserved.
www.ascovalve.com
I&M No. V 5826 R4
SERIES
8210
8211
[52,4]
2.062
I&M No. V 5826 R4
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