Asco 8215 Series Installation & Maintenance Instructions

Installation & Maintenance Instruction
2-WAY INTERNAL PILOT-OPERATED SOLENOID VALVES NORMALLY OPEN
OPERATION - 3/4", 1", 1-1/4", 1-1/2" OR 2" NPT
HIGH FLOW AIR OR FUEL GAS SERVICE
IMPORTANT: See separate solenoid installation and
maintenance instructions for information on: Wiring,
Solenoid Temperature, Causes of Improper Operation, and
Coil Replacement.
DESCRIPTION
Series 8215 valves are 2-way normally open diaphragm type,
solenoid valves designed for high fl ow air or fuel gas service.
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 or explosionproof solenoid
enclosure.
OPERATION
Normally Open: Valve is open when solenoid is de-energized;
closed when energized.
IMPORTANT: No
differential required.
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 prefi x on nameplate to
determine maximum temperatures.
Coil
Construction
Class
F
AC
H
8215C DC B or H None or HT
8215G DC F or H None or HT
ASCO Valves
®
© ASCO Valve, Inc. 50 Hanover Road, Florham Park, New Jersey 07932
minimum operating
Catalog Maximum Maximum
Number Ambient
Prefi x Temp. °F Temp. °F
None 125
HT 140
77
104
E 252243 - 1/15
Positioning
Valves of AC construction with 3/4", 1", 1-1/4", or 1-1/2", NPT
connections are designed to perform properly when mounted
in any position. The 2" NPT valves of AC construction may be
mounted with solenoid in any position from horizontal to vertical
and upright. However, for optimum life and performance, the
solenoid on all sizes should be mounted vertically and upright
to reduce the possibility of foreign matter accumulating in the
solenoid base sub-assembly area. IMPORTANT: All valves
of DC construction must be mounted with solenoid vertical
and upright.
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.
pressure
CAUTION: To avoid damage to the valve body, DO
NOT OVERTIGHTEN PIPE CONNECTIONS. If PTFE
tape, paste, spray or similar lubricant is used, use
extra care when tightening due to reduced friction.
IMPORTANT: 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.
WARNING: To prevent the possibility of
death, serious injury or property damage,
turn off electrical power, depressurize valve,
extinguish all open fl ames and avoid any
type of sparking or ignition. Vent hazardous
or combustible fl uid to a safe area before
Fluid
servicing the valve.
NOTE: It is not necessary to remove the valve from the pipeline
for repairs. See Service Note under Valve Disassembly and
125
Reassembly.
Cleaning
140
All solenoid valves should be cleaned periodically. The time
between cleanings will vary depending on the medium and
77
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,
104
faulty valve operation will occur and the valve may fail to open
or close. Clean valve strainer or fi lter when cleaning the valve.
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www.ascovalve.com
I&M V_5993_R8
s
SERIES
8215
MAINTENANCE
I&M V_5993_R8
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