Asco 8215 Installation & Maintenance Instructions

Installation & Maintenance Instructions
2-- WAY INTERNAL PILOT-- OPERATED SOLENOID VALVES
NORMALLY CLOSED OPERATION -- 3/4I, 1I, 1-- 1/4I, 1-- 1/2I OR 2I NPT
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 closed internal
pilot---operated 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 or explosionproof solenoid enclosure.

OPERATION

Normally Closed: Valve is closed when solenoid is
de---energized; open when energized.
Note: No minimum operating pressure differential
required.

INSTALLATION

CAUTION: Not all valves are approved for fuel gas
service. 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 prefix on nameplate
to determine maximum temperatures.
Construction Coil
Class
F
AC Construction
H
B
DC Construction or
H
ASCO Valves
R
ASCO Valve, Inc. 50 Hanover Road, Florham Park, New Jersey 07932
E R
Catalog Max. Max.
Number Ambient Fluid
Prefix Temp_F Temp_F
FT 125 125
HT 140 140
None
or 77 77
HT
Positioning
Valve 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 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.
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
death, serious 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.
*Dupont Co. Registered Trademark
www.ascovalve.com
SERIES
8215
I&M No.V5996R6
Page 1 of 4
All Rights Reserved.
E209037--- 04/10