Grieve Corporation 8215 Installation Manual
Installation & Maintenance Instructions
SERIES
2-WAY INTERNAL PILOT-OPERATED SOLENOID VALVES
NORMALLY OPEN OPERATION - 3/8", 1/2", OR 3/4" NPT
IMPORTANT: See separate solenoid installation and mainte nance
instr uctions for information on: Wirin g, Solenoid Temperature, Causes
of Improper Operation, Coil, or Solenoid Replacement.
DESCRIPTION
Series 8215 valves are 2-way normally open internal pilot-operated
diaphragm-type solenoid valves. Valve bodies are made of rugged
aluminum with trim and internal parts made of steel and stainless steel.
Series 8215 valves may be provided with a general purpose, explosionproof,
or watertight/explosionproof solenoid.
OPERATION
Normally Open: Valve is open when solenoid is de-energized; closed when
energized.
NOTE: No minimum operating pressure differential required.
INSTALLATION
CAUTION: Not all valves are approved for fuel gas service. Check nameĆ
plate for correct catalog number, pressure, voltage, frequency, and service.
Never apply incompatible fluids or exceed pressure rating of the valve. InĆ
stallation 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 afĆ
ter disassembly and reassembly.
Temperature Limitations
For maximum valve ambient and fluid temperatures, refer to chart below.
Check catalog number prefix on nameplate to determine maximum
temperatures.
Construction
AC or DC
AC
DC
11.2 watts
DC
11.6 watts
Coil
Insulation
Class
F
H
F or H
F or H
Positioning
Valve is designed to perform properly when mounted in any position.
However, for optimum life and performance, the solenoid should be
mounted vertical and upright so as 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 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 avoid damage to the valve body, DO NOT OVERTIGHTEN
PIPE CONNECTIONS. If Teflon* tape, paste, spray, or similar lubricant
is used, use extra care when tightening due to reduced friction.
Catalog
Number
Prefix
None
HT
None or
HT
None or
HB
Max.
Ambient
Te mp _F
125
140
77 77
104 104
Max.
Fluid
Te mp _F
125
140
8215
Form No.V5984R1
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 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 valve strainer or filter when cleaning the valve.
Preventive Maintenance
1. Keep the medium flowing through the valve as free from dirt and
foreign material as possible.
2. While in service, the valve should be operated at least once a month to
insure proper opening and closing.
3. 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 comĆ
plete ASCO Rebuild Kit.
Causes of Improper Operation
1. Incorrect Pressure: Check valve pressure. Pressure to valve must be
within range specified on nameplate.
2. Excessive Leakage: Disassemble valve and clean all parts. If parts are
worn or damaged, install a complete ASCO Rebuild Kit.
Valve Disassembly (Refer to Figure 1)
1. Remove solenoid, see separate instructions.
2. Unscrew solenoid base sub-assembly from valve bonnet
3. Remove solenoid base sub-assembly, core, plugnut gasket, plugnut
assembly and solenoid base gasket from valve bonnet.
4. Remove bonnet screws, valve bonnet, disc holder sub-assembly, disc
holder spring, diaphragm/spring sub-assembly and body gasket.
5. All parts are now accessible for cleaning or replacement. If parts are
worn or damaged, install a complete ASCO Rebuild Kit.
Valve Reassembly
1. Lubricate plugnut gasket, solenoid base gasket, and body gasket with
a light coat of DOW CORNINGr 200 Fluid lubricant or an
equivalent high-grade silicone fluid.
2. Position body gasket and diaphragm/spring sub-assembly in valve
body. Locate the bleed hole in diaphragm/spring sub-assembly
approximately 45_ from valve outlet.
NOTE: Should diaphragm/spring sub-assembly become disassembled, be sure to replace the diaphragm/spring support with lip
facing upward toward the valve bonnet.
3. Position disc holder spring and disc holder sub-assembly on diaphĆ
ragm/spring sub-assembly.
4. Replace valve bonnet and bonnet screws on valve body. Hand thread
screws a few turns into valve body; then torque bonnet screws in a crissĆ
cross manner 70 ± 8 in-lbs [8,0 ± 0,9 Nm].
*DuPont's Registered Trademark
e
ASCO Valves
MCMXCI All Rights Reserved.
1 of 2
50-60 Hanover Road, Florham Park, New Jersey 07932
5. Install solenoid base gasket, plugnut assembly, plugnut gasket core
(small end up), and solenoid base sub-assembly. For DC
Construction, be sure plugnut assembly and core are installed with
mated ends together.
6. Torque solenoid base sub-assembly to 175 ± 25 in-lbs
[19,8 ± 2,8 Nm].
7. Replace solenoid (see separate instructions) and make electrical hookĆ
up.
WARNING: To prevent the possibility of severe
personal injury or property damage, check valve for proper
operation before returning to service. Also perform
internal seat and external leakage tests with a nonhazardĆ
ous, 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 opĆ
erating.
ORDERING INFORMATION
FOR ASCO REBUILD KITS
Parts marked with a asterisk (*) in the
exploded views are supplied in Rebuild Kits.
S 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.
solenoid base
sub-assembly
core (AC)
(small end up)
plugnut gasket
plugnut assembly
(AC)
solenoid base
gasket
valve bonnet
disc holder
sub-assembly
disc holder spring
diaphragm/spring
sub-assembly
Torque solenoid base
sub-assembly to
_
+
175 25 in-lbs
_
+
[19,8 2,8 Nm]
core (DC)
mated ends
plugnut (DC)
bonnet screw (4)
mounting bracket
two positions
(optional feature)
Partial view of
mounting bracket
(optional)
[42.1]
1.656
[ 7.1]
.281 diameter
2 mounting holes
diaphragm spring
diaphragm spring
support
diaphragm assembly
body gasket
valve body
Supplied in ASCO Rebuild Kit
Figure 1. Series 8215 Valve Without Solenoid.
ASCO Valves
bleed hole
( see note )
CAUTION
Do not damage
valve seat
NOTE: Locate bleed hole 45 from valve outlet.
_
50-60 Hanover Road, Florham Park, New Jersey 07932
Torque bonnet screws
in a crisscross manner
_
+
to 70 8 in-lbs
_
+
[8,0 0,9 Nm]
2 of 2Form No.V5984R1
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