User Guide

ManualsBrandsAsco ManualsPlumbing SuppliesValve Rebuild Kit 8210 AC

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

E181142

Installation & Maintenance Instructions

SERIES

I&M No.V6296R2

2-WAY INTERNAL PILOT-OPERATED SOLENOID VALVES

NORMALLY CLOSED OPERATION

2 OR 2½ NPT

8210

8211

IMPORTANT: See separate solenoid installation and

maintenance instructions for information on: Wiring,

Solenoid Temperature, Cause of Improper Operation, Coil

or Solenoid Replacement.

DESCRIPTION

Series 8210 valves are 2-way normally closed, internal pilot

operated solenoid valves designed for general service.

These valves are made of rugged forged brass and have an

integral adjustable bleed device for controlling the opening

and closing speed of the piston. Series 8210 valves are

supplied with general purpose, or explosionproof/waterĆ

tight solenoids.

Series 8211 valves are the same as Series 8210 except they

are provided with a metal explosionproof/watertight soleĆ

noid enclosure.

OPERATION

Normally Closed: Valve is closed when solenoid is

de-energized; open when energized.

IMPORTANT: Minimum operating pressure differential

required is 5 psi.

Adjustable Bleed Device

Series 8210 valves have an integral adjustable bleed device

for controlling the opening and closing speed of the piston.

When valve leaves the factory, the bleed adjusting screw

(metering pin) has been preset to provide quick shockless

closing for most applications. If faster or slower closing is

required, adjust the screw (metering Pin) as follows:

1. Turn metering pin in (clockwise) as far as possible

without over tightening. Back out tightening. Back out

metering pin (counterclockwise) two complete turns.

From this point, adjustments may be made to suit

system.

2. Turn metering pin clockwise for slower closing.

3. Turn metering pin counterclockwise for faster closing.

Manual Operation (Optional Feature)

Valves with suffix MO in the catalog number are provided

with a manual operator which allows manual operation

when desired or during an electrical power outage.

To engage manual operator, rotate stem fully clockwise

(approximately 180). Valve will now be in the same

position as when the solenoid is energized.

To disengage manual operator, rotate stem fully

counterclockwise (approximately 180) before operating

electrically.

CAUTION: Manual operator stem must be fully rotated

counterclockwise before electrical operation.

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.

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 the maximum temperatures.

Construction

Catalog

Number

Prefix

Coil

Class

Maximum

Ambient

Temp.F

Maximum

Fluid

Temp.F

None or

F 122 180

HT H 140 180

None,FT

or HT

F or H 77 150

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.

Piping

Connect piping or tubing 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.

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, personal injury or property damage, turn

off electrical power, depressurize valve, and vent

fluid to a safe area before servicing the valve.

Note: It is not necessary to remove the valve from the

pipeline for repairs.

Summary of content (4 pages)

PAGE 1
Installation & Maintenance Instructions SERIES 8210 2-WAY INTERNAL PILOT-OPERATED SOLENOID VALVES NORMALLY CLOSED OPERATION 2 OR 2½ NPT IMPORTANT: See separate solenoid installation and maintenance instructions for information on: Wiring, Solenoid Temperature, Cause of Improper Operation, Coil or Solenoid Replacement. 8211 I&M No.V6296R2 INSTALLATION Check nameplate for correct catalog number, pressure, voltage, frequency, and service.
PAGE 2
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.
PAGE 3
7. Refer to Valve Disassembly sections, step 5 for further disassembly Manual Operator Reassembly Refer to steps 1 through 9 of Valve Reassembly then proceed as follows: 1. Position stem gasket on stem/lever sub-assembly. 2. Preassemble manual operator parts as follows: Position core assembly with core spring into manual operator body from the bottom. Install stem/lever sub-assembly into manual operator body.
PAGE 4
Torque Chart Part Name Solenoid Base Sub-Assembly Bonnet Screws Valve Seat AC Construction Torque Value in Inch-Pounds 175 ± 25 144 ± 15 65 ± 125 Torque Value in Newton-Meters 19,8 ± 2,8 16,3 ± 1,7 7,3 ± 1,7 DC Construction solenoid base sub-assembly solenoid base sub-assembly core spring (see note 1.) core assembly core spring core assembly Notes: retainer solenoid base gasket metering pin metering pin gasket valve seat Indicates that these parts are included in rebuild kit 1.