ASCO Valves 8320 Series Installation and operating instructions

Page 1 of 3

50 Hanover Road, Florham Park, New Jersey 07932 www ascovalve com All Rights ReservedE188413

Installation & Maintenance Instructions SERIES

8320

BRASS OR STAINLESS STEEL CONSTRUCTION I&M No. 7569

3-WAY NORMALLY CLOSED DIRECT MOUNTED SOLENOID AL ES

FOR NAMUR ACTUATORS Ċ 1/4I NPT Ċ AIR OR INERT GAS SER ICE

NOTICE: See separate solenoid installation and maintenance

instructions for information on: Wiring, Solenoid Temperature,

Causes of Improper Operation and Coil or Solenoid Replacement.

DESCRIPTION

Series 8320 valves are 3-way normally closed direct mounted

solenoid valves designed for air or inert gas service. Valves are

made of rugged brass or stainless steel. Series 8320 valves are

provided with a general purpose solenoid enclosure. Series

EE8320 is the same as Series 8320 e cept it is provided with a Class

I, Division 2 e plosionproof/watertight solenoid enclosure.

OPER TION

Normally Closed (Pressure at Port 1)

Solenoid De-energized: Flow is from Port 2 to Port 3. Port 1 is

closed.

Solenoid Energized: Flow is from Port 1 to Port 2. Port 3 is closed.

Breather Function: Allows for spring side of a spring return actuator to

vent at all times through valve e haust port 3. IMPORT NT: Because

of the breather function, the use of a metering / flow control device at

exhaust port 3 (to control actuator speed) is not recommended.

NOTICE: No minimum operating pressure differential required.

SOLENOID

DE-ENERGIZED

SOLENOID

ENERGIZED

FLOW DIAGRAMS

Manual Operation

Manual operator (optional feature) allows manual operation when

desired or during an electrical power outage. Depending upon valve

requirements, two types of manual operators are available:

Momentary Push Type (Suffix MO) Manual Operator

To engage push type manual operator, push stem at base of valve body

upward as far as possible. Valve will now be in the same position as

when the solenoid is energized. To disengage manual operator,

release stem. Manual operator will return to original position.

Maintained Screw Type (Suffix MS) Manual Operator

To engage screw type manual operator, turn red knob clockwise until

it hits a stop. Valve will now be in the same position as when solenoid

is energized. Rotate knob fully counterclockwise to disengage.

CAUTION: For valve to operate electrically, manual

operator must be fully disengaged.

INST LL TION

Check nameplate for correct catalog number, pressure, voltage,

frequency, and service. Never apply incompatible fluids or e ceed

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, e ternal

leakage, and operational tests on the valve with a nonhazardous,

noncombustible fluid after disassembly and reassembly.

Temperature Limitations

See separate solenoid Installation and Maintenance Instructions for

ma imum ambient temperature Ma imum fluid temperature is

180_F (82_C)

Positioning

Valve may be mounted in any position.

Mounting Solenoid Valve to N MUR ctuator

Valves are supplied with a hardware kit containing two port gaskets

and three sets of mounting screws; sizes: M5, .190-24 UNC-2A and

.190-32 UNF-2A. Align port 2 and 3 port gaskets and solenoid

valve on actuator. Then install two he head screws in offset center

holes on either side. Hand thread screws a few turns into actuator.

Then tighten screws evenly using a 5/16I or 8 mm wrench.

Figure 1 Mounting Dimensions

1 26

[32]

[24]

2 mounting holes locating hole

port gaskets (2)

Piping

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.

NOTE: The e haust and/or pressure lines may be restricted to

control actuator speed.

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, 8601, and 8602

for strainers.

50 Hanover Road, Florham Park, New Jersey 07932 www ascovalve com

Page 2 of 3 I&M No V7569

M INTEN NCE

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.

Cleaning

All solenoid valves should be cleaned periodically. The time between

cleaning will vary depending on the medium and service conditions.

In general, if the voltage to the coil is correct, sluggish valve operation,

e cessive noise, or leakage will indicate that cleaning is required. In

the e treme case, faulty valve operation will occur and the valve may

fail to shift. Clean strainer or filter when cleaning the valve.

Preventive Maintenance

SKeep medium flowing through the valve as free from dirt and

foreign material as possible.

SPeriodic e ercise of the valve should be considered if ambient or

fluid conditions are such that corrosion, elastomer degradation,

fluid contamination build up, or other conditions that could

impede solenoid valve shifting are possible. The actual frequency

of e ercise necessary will depend on specific operating conditions.

A successful operating history is the best indication of a proper

interval between e ercise cycles.

SDepending on the medium and service conditions, periodic

inspection of internal valve parts for damage or e cessive wear is

recommended. Thoroughly clean all parts. If parts are worn or

damaged, install a complete rebuild kit.

Causes of Improper Operation

SIncorrect Pressure: Check valve pressure. Pressure to valve must

be within range specified on nameplate.

SExcessive Leakage: Disassemble valve and install a complete

ASCO Rebuild Kit.

Valve Disassembly (Refer to Figures 2 & 3)

1. Disassemble valve in an orderly fashion using e ploded view for

identification of parts.

2. Disconnect electrical hookup to solenoid and piping to valve

body.

3. Remove solenoid, see separate instructions.

4. Remove two he head mounting screws from offset holes in

valve body using a 5/16I or 8 mm wrench.

5. Unscrew solenoid base sub-assembly from valve body. Then

remove solenoid base gasket and core assembly with core

spring and core guide.

6. Unscrew end cap or optional manual operator and remove disc

holder spring, disc holder assembly and end cap gasket from

valve body.

7. All parts are now accessible for cleaning or replacement. If

parts are worn or damaged, install a complete ASCO Rebuild

Kit.

Valve Reassembly

1. Reassemble valve using e ploded views for identification and

placement of parts.

2. Lubricate all gaskets with DOW CORNINGr 200 Fluid

lubricant or an equivalent high-grade silicone fluid.

NOTE: Solenoid base gasket and end cap gasket are identical.

3. Reinstall end cap gasket, disc holder assembly, disc holder

spring and end cap or optional manual operator in valve body.

Torque end cap to 175 ± 25 in-lbs [19,8 ± 2,8 Nm].

4. Position solenoid base gasket in valve body.

5. Install core assembly with core spring and guide into solenoid

base sub-assembly and engage with valve body.

6. Torque solenoid base sub-assembly to 175 ± 25 in-lbs

[19,8 ± 2,8 Nm].

7. Reinstall valve on actuator, see Mounting Solenoid Valve To

NAMUR Actuator section.

8. Reinstall solenoid and make electrical connections, see

separate instructions.

9. Install piping to valve, see Piping section.

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.

10. Restore line pressure and electrical power supply to valve.

11. After maintenance is completed, operate the valve a few times

to be sure of proper operation. A metallic click indicates the

solenoid is operating.

ORDERING INFORM TION

FOR SCO REBUILD KITS

Parts marked with an asterisk (*) in the e ploded 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.

50 Hanover Road, Florham Park, New Jersey 07932 www ascovalve com

Page 3 of 3I&M No V7569

Figure 2 Series 8320 valve without solenoid

solenoid base

sub-assembly

core assembly

end cap

disc holder spring

body gasket (2)

body

disc holder assembly

solenoid base gasket

with spring

end cap gasket

core guide

Indicates that these

parts are included

in ASCO Rebuild Kit

mounting screw (2)

5/16I or 8 mm wrench

push type screw type

Manual Operator

(Optional Feature)

Replaces End Cap

MO MS

Other ASCO Valves Control Unit manuals

ASCO Valves

ASCO Valves 8210 Series Installation and operating instructions

ASCO Valves

ASCO Valves 8044 Series Installation and operating instructions

ASCO Valves

ASCO Valves 8262 Series Installation and operating instructions

ASCO Valves

ASCO Valves 8210 Series Installation and operating instructions

ASCO Valves

ASCO Valves 8222 Series Installation and operating instructions

ASCO Valves

ASCO Valves USM8260101 Installation and operating instructions

ASCO Valves

ASCO Valves 327C Series Installation and operating instructions

ASCO Valves

ASCO Valves 8210G Series Installation and operating instructions

ASCO Valves

ASCO Valves 8214(200) Series Installation and operating instructions

ASCO Valves

ASCO Valves 8004 Series Installation and operating instructions

ASCO Valves

ASCO Valves 8210 Series Installation and operating instructions

ASCO Valves

ASCO Valves 8263 Series Installation and operating instructions

ASCO Valves

ASCO Valves 8210 Series Installation and operating instructions

ASCO Valves

ASCO Valves 8210 Series Installation and operating instructions

ASCO Valves

ASCO Valves EV8308G360 Installation and operating instructions

ASCO Valves

ASCO Valves Red-Hat II 8017G Series Installation and operating instructions

ASCO Valves

ASCO Valves 8210 Series Installation and operating instructions

ASCO Valves

ASCO Valves 8214 Series Installation and operating instructions

Popular Control Unit manuals by other brands

Festo

Festo Compact Performance CP-FB6-E Brief description

Elo TouchSystems

Elo TouchSystems DMS-SA19P-EXTME Quick installation guide

JS Automation

JS Automation MPC3034A user manual

JAUDT

JAUDT SW GII 6406 Series Translation of the original operating instructions

Spektrum

Spektrum Air Module System manual

BOC Edwards

BOC Edwards Q Series instruction manual

KHADAS

KHADAS BT Magic quick start

Etherma

Etherma eNEXHO-IL Assembly and operating instructions

PMFoundations

PMFoundations Attenuverter Assembly guide

GEA

GEA VARIVENT Operating instruction

Walther Systemtechnik

Walther Systemtechnik VMS-05 Assembly instructions

Altronix

Altronix LINQ8PD Installation and programming manual

Eaton

Eaton Powerware Series user guide

WAGO

WAGO 750-407/040-000 manual

Sony

Sony CCU-590 Operation manual

Graco

Graco 25D614 instructions

Task Force Tips

Task Force Tips YE-RF-900 Instructions for installation, safe operation and maintenance

Shini

Shini SPV-U Series manual