ASCO Valves 8210 Series Installation and operating instructions

ASCO Valves® All Rights Reserved. I&M No. V 5847 R2
©ASCO Valve, Inc.® 50 Hanover Road, Florham Park, New Jersey 07932 www.ascovalve.com
E243264- 2/14
I&M No. V 5847 R2 - T84
Installation & Maintenance Instructions
2-WAY INTERNAL PILOT-OPERATED SOLENOID VALVES
DIAPHRAGM TYPE — 3/8 AND 1/2 NPT
NORMALLY CLOSED OPERATION
Temperature Limitations
• Max Valve Ambient Temperature: See Solenoid I&M or
Catalog
• Max Valve Temperature: 175°F
The temperature limitations listed are for UL applications. For non
UL applications, higher ambient and fluid temperature limitations
are available. Consult factory. Check catalog number on nameplate
to determine maximum temperatures.
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 Figure
1.
Piping
Connect piping to valve according to markings on valve body.
Apply pipe compound or PTFE tape 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 severe
personal injury or property damage, turn off
electrical power, depressurize valve, extinguish
all open flames, and avoid any type of sparking
or ignition. Vent hazardous or combustible 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.
SERIES
8210
DESCRIPTION
Series8210valvesare2-waynormallyclosed,internalpilotoperated
solenoid valves. Valve body and bonnet are of brass construction.
Series 8210 valves may be provided with a general purpose/
watertight, open-frame or explosionproof/watertight solenoid.
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 Closed: Valve is closed when solenoid is de-energized;
open when energized.
Manual Operator (Optional)
Valves with suffix “MO” in catalog number are provided with a
manual operator which allows manual operation when desired
or during an interruption of electrical power. To operate valve
manually, push in knurled cap and rotate 180°. Disengage manual
operator by rotating knurled cap counterclockwise 180° before
operating electrically.
Manual Operator Location (Refer to Figure 3)
Manual operator (when shipped from factory) will be located
over the valve outlet. Manual operator may be relocated at 90°
increments by rotating valve bonnet. Remove bonnet screws (4)
and rotate valve bonnet with solenoid to desired position. Replace
bonnet screws (4) and torque in a crisscross manner to 110±10 inch
pounds.
If valve is installed in the system and is operational, proceed in the
following manner:
WARNING: To prevent the possibility of death,
serious injury or property damage, depressurize
valveandvent fluid to asafearea before servicing
the valve.
1. Remove the solenoid - see separate solenoid instructions.
2. Remove bonnet screws (4) and rotate valve bonnet to desired
position.
3. Replace bonnet screws (4) and torque in a crisscross manner to
110±10 inch pounds.
4. Replace all solenoid parts.
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.
NOTICE: See separate solenoid installation and maintenance
instructions for information on: Wiring, Solenoid Temperature,
Cause of Improper Operation, Coil or Solenoid Replacement.
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©ASCO Valve, Inc.® 50 Hanover Road, Florham Park, New Jersey 07932 www.ascovalve.com I&M No. V 5847 R2
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.
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 completeASCO Rebuild Kit.
Coil Replacement (See separate solenoid instructions)
Valve Disassembly (Refer to Figure 1)
1. Remove solenoid - see separate solenoid instructions.
2. Unscrew solenoid base sub-assembly and remove bonnet gasket.
3. Remove valve bonnet screws (4) and valve bonnet.
4. For normal maintenance, it is not necessary to disassemble
the manual operator (optional feature) unless external leakage
is evident. To disassemble, remove stem pin, manual operator
stem, stem spring and stem gasket.
5. Remove core spring, core/diaphragm sub-assembly and body
gasket.
6. Allparts are now accessibleforcleaningorreplacement. Replace
worn or damaged parts with a complete Spare Parts Kit for best
results.
Valve Reassembly
1. Reassemble in reverse order of disassembly paying careful
attention to exploded views provided for identification and
placement of parts.
2. Lubricate body gasket and solenoid base gasket with DOW
CORNING®200 fluid lubricant or an equivalent high-grade
silicone fluid. Lubricate manual operator stem gasket with DOW
CORNING®111 Compound lubricant or an equivalent high-
grade silicone grease. On oxygen valves Suffix “N” and special
cleaning valves where silicone lubricants are not allowed use
FLOROLUBE®GR-362 , LG-160 or KRYTOX®GPL -226.
Note: Only the gaskets specified above should be lubricated.
3. Replace body gasket and core/diaphragm sub-assembly. Locate
the bleed hole in core/diaphragm sub-assem bly approximately
45° from the valve outlet.
4. Replace valve bonnet and bonnet screws (4). Torque bonnet
screws (4) in a crisscross manner to 110±10 inch pounds.
5. If removed, replace manual operator stem, stem spring, stem
gasket and stem pin.
6. Replace bonnet gasket, core assembly and core spring. For
valves with manual operator, replace core spring with wide end
in core first; closed end protrudes from top of core.
7. Replace solenoid base sub-assembly and torque to 175±25 inch
pounds.
8. Replace solenoid enclosure and retaining cap or clip.
9. After maintenance, operate the valve a few times to be sure of
proper opening and closing.
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.
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©ASCO Valve, Inc.® 50 Hanover Road, Florham Park, New Jersey 07932 www.ascovalve.com I&M No. V 5847 R2
Page 3 of 3
(See Note 1)
(See Note 1)
(See Note 1)
(See Note 1)
Indicates Parts Supplied
In ASCO Rebuild Kits
1. Lubrication required for body and bonnet
gaskets. See valve reassembly instructions.
2. Locate bleed hole in diaphragm assembly
approximately 45° from valve outlet.
Notes:
Figure 1. Series 8210
Torque solenoid
base sub-assemly
to 175±25 in-lbs.
Torque bonnet
screws (4) in a
crisscross manner
to 110±10 in-lbs.
BONNET SCREW (4)
Manual Operator Construction
Suffix “MO”
Partial View of
Mounting Bracket
(Optional)
(See Note 2)