ASCO Valves 8210 Series Installation and operating instructions

Installation & Maintenance Instructions
2-WAY INTERNAL PILOTED-OPERATED SOLENOID VALVES
NORMALLY OPEN OPERATION — GENERAL SERVICE
3/4"NPT
SERIES
8210
8211
[52,4]
2.062
.343 dia. (2 holes)
[Ø8,7]
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 certified 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 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.
Temperature Limitations
For maximum valve ambient and fluid temperatures, refer to chart
below. Check catalog number and watt rating on nameplate.
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.
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.
CAUTION: 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 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 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
• Keep the medium flowing 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.
I&M No. V 5826 R4
Figure 1. Mounting bracket dimensions
ASCO Valves® All Rights Reserved. I&M No. V 5826 R4
©ASCO Valve, Inc. 50 Hanover Road, Florham Park, New Jersey 07932 www.ascovalve.com
E243876- 3/14 Page 1 of 3
Watt
Rating
AC or DC
Catalog
Number
Prefix
Solenoid
Class
Max.
Amb.
Temp.
Max.
Fluid
Temp.
15.4 OR 16.1
AC
None, KF, SF
or SC F125 °F
(51.7 °C) 180 °F (82°C)
HT, KH, ST or
SU H140 °F
(60 °C) 180 °F (82°C)
16.8
DC None or HT F or H 77 °F
(25°C) 180 °F (82°C)

Causes of Improper Operation
• Incorrect Pressure: Check valve pressure. Pressure to valve must
be within range specified on nameplate.
• Excessive Leakage: Disassemble valve and clean all parts. If
parts are worn or damaged, install a complete ASCO Rebuild Kit.
Valve Disassembly
1. Disassemble valve in an orderly fashion using exploded view
for identification and placement of parts.
2. Remove solenoid enclosure. See separate instructions.
3. Unscrew solenoid base sub-assembly using special wrench
adapter supplied in rebuild kit. For special wrench adapter
only, order ASCO Wrench Kit No. K218950.
4. Remove solenoid base sub-assembly, core, plugnut assembly
and solenoid base gasket.
5. Unscrew adapter from valve body, then remove disc holder
assembly, disc holder spring and bonnet gasket.
6. OptionalManualOperator-Itisnotnecessarytodisassemble
the manual operator unless external leakage is evident. If
disassembly is required, remove retainer using a suitable pair
of retaining ring pliers. Then remove flat washer and back
out manual operator stem counterclockwise with stem gasket
attached.
7. Remove bonnet screws, valve bonnet, diaphragm spring,
diaphragm assembly, body gasket, body passage eyelet (not
present on all valve constructions) and body passage gasket.
8. All Parts are now accessible for cleaning or replacement. If
parts are worn or damaged, install a complete ASCO Rebuild
Kit.
3. Install body passage gasket, body passage eyelet, diaphragm
assembly, diaphragm spring, valve bonnet and bonnet screws.
Hand thread screws as far as possible. Then torque bonnet
screws in a crisscross manner to 144 ± 15 in-lbs [16,3 ± 1,7
Nm].
4. Install bonnet gasket, disc holder spring, disc holder assembly
and adapter in valve bonnet. Torque adapter to 175 ± 25 in-lbs
[19,8 ± 2,8 Nm].
5. Replace solenoid base gasket, plugnut assembly, core (small
end up) and solenoid base sub-assembly. Torque solenoid base
sub-assembly to 175 ± 25 in-lbs [19,8 ± 2,8 Nm].
6. Optional Manual Operator - If removed, install stem with
stem gasket clockwise into valve bonnet using a suitable
screwdriver. Reinstall flat washer and retainer. Then turn
manual operator stem counterclockwise until it stops. This is
the position for electrical operation.
7. Install solenoid. See separate instructions.
WARNING: To prevent the possibility of death,
serious injury or property damage, check valve for
proper operation before returning to service. Also
perform internal seat and external leakage tests with
a nonhazardous, noncombustible fluid.
8. Restore line pressure and electrical power supply to valve.
9. After maintenance is completed, operate the valve a few times
to be sure of proper operation. A metallic click signifies the
solenoid is operating.
ORDERING INFORMATION
FOR ASCO REBUILD KITS
Parts marked with an asterisk (*) in the exploded view are supplied in
Rebuild Kits. When Ordering Rebuild Kits for ASCO valves, order the
Rebuild Kit number stamped on the valve nameplate. If the number of
the kit is not visible, order by indicating the number of kits required,
and the Catalog Number and Serial Number of the valve(s) for which
they are intended.
Torque Chart
Part Name Torque Value
Inch-Pounds Torque Value Newton-Meters
solenoid base
sub-assembly 175 ± 25 19,8 ± 2,8
Adapter
Bonnet screws 144 ± 15 19,3 ± 1,7
Page 2 of 3
©ASCO Valve, Inc. 50 Hanover Road, Florham Park, New Jersey 07932 www.ascovalve.com
I&M No. V 5826 R4
-Service Notice -
When installing a new ASCO Rebuild Kit, the parts supplied are
shown in Figure 1. The parts supplied are new, improved and a
direct replacement for the present parts providing all new parts are
installed.
CAUTION: To ensure proper valve operation, install
all parts supplied in ASCO Rebuild Kit. Do not mix old
and new parts.
Valve Reassembly
1. Lubricate body gasket, body passage gasket, bonnet gasket
and solenoid base gasket with DOW CORNING®200 Fluid
lubricant or an equivalent high-grade silicone fluid.
2. Optional Manual Operator - Lubricate stem gasket with
DOW CORNING®111 Compound lubricant or an equivalent
high-grade silicone grease.

Page 3 of 3
©ASCO Valve, Inc.® 50 Hanover Road, Florham Park, New Jersey 07932 www.ascovalve.com
I&M No. V 5826 R4
Fi ure 1. Series 8210 - valve without solenoid.
valve body
solenoid base
sub-assembly
core (small end up)
plu nut assembly
solenoid base asket
adapter
disc holder assembly
disc holder sprin
bonnet asket
Special wrench adapter
for solenoid base
sub-assembly
(order Kit No. K218950)
IMPORTANT
See torque
chart
stem retainer
stem washer
manual operator stem
stem asket
MANUAL OPERATOR
(OPTIONAL)
body passa e asket
body asket
diaphra m assembly
diaphra m sprin
bonnet screw (4)
body passa e eyelet
Indicates Parts Supplied
In ASCO Rebuild Kits
valve bonnet
mountin bracket
(optional feature)