Install Instructions

ManualsBrandsAsco RedHat ManualsDirect Acting Solenoid Valves1/4" Normally Closed Solenoid Valve w/ Viton Seats (120v)

Page 2 of 5 (Section 1 of 2)

I&M No.V9575R4

ASCO Valve, Inc.

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

Positioning

These valves are 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.

Mounting

Two (2) M5 threaded holes are provided in the valve body for

mounting. (See Figure 1)

Optional mounting bracket can be obtained with valve as Suffix MB

or separately as a kit.

Piping

Connect piping or tubing to valve according to markings on valve

body. Inlet port will either be marked “1” or “IN”. Outlet port will be

marked “2” or “OUT”. Wipe the pipe threads clean of cutting oils.

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 and 8601 for strainers.

MAINTENANCE

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.

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 strainer

or filter when cleaning the valve.

Preventive Maintenance

S Keep the medium flowing through the valve as free from dirt and

foreign material as possible.

S Periodic exercise 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 exercise necessary will depend on specific operating conditions.

A successful operating history is the best indication of a proper

interval between exercise cycles.

S Depending on the medium and service conditions, periodic

inspection of internal valve parts for damage or excessive wear

is recommended. Thoroughly clean all parts. Replace any worn

or damaged parts.

Causes of Improper Operation

S Incorrect Pressure: Check valve pressure. Pressure to valve must

be within range specified on nameplate.

S Excessive Leakage: Disassemble valve (see Maintenance) and

clean all parts. If parts are worn or damaged, install a complete

ASCO Rebuild Kit.

Valve Disassembly (see Figures 2, 3 & 4)

1. Disassemble valve using exploded views for identification of parts.

2. Remove solenoid, see separate instructions.

3. Unscrew solenoid base sub--- assembly with wrench. Remove

core assembly, core spring, and solenoid base gasket from

valve body.

4. For normally open construction (Figure 4) remove spring, and

disc holder assembly.

5. All parts are now accessibleto clean or replace. If parts are worn

or damaged, install a complete ASCO Rebuild Kit.

Valve Reassembly

1. Use exploded views for identification, orientation and placement

of parts.

2. Lubricate all gaskets with DOW CORNINGr 200 Compound

lubricant or an equivalent high---grade silicone oil.

3. For normally open construction (Figure 4), install disc holder

assembly and disc holder spring.

4. Replace solenoid base gasket, core assembly with core spring

and solenoid base sub---assembly. Note: For core assemblies

with internal type core springs, install wide end of core spring

in core assembly first, closed end of core spring protrudes from

top of core assembly. (see Figure 2)

5. Torque solenoid base sub---assembly to 175 ± 25 in---lbs [19,8 ±

2,8 Nm].

6. Install solenoid. See separate solenoid instructions. Thenmake

electrical hookup to solenoid.

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.

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

8. After maintenance is completed, operate the valve a few

times to be sure of proper operation. A metallic click

signifies the solenoid is operating.

ORDERING INFORMATION

FOR ASCO REBUILD KITS

Parts marked with an asterisk (*) in the exploded views in Figure 2

& 3 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 quantity of kits required, and the Catalog Number and Serial

Number of the valve(s) for which they are intended.

M5 thread 7.6 [.30] Min Full Thread

depth, 2 Holes for Mounting

Figure 1 Mounting Dimensions

FLOW

[.69]

1/4 NPT

3/8 NPT

1/8 NPT

M5 thread 6 [.24] Min Full Thread

depth, 2 Holes for Mounting

FLOW

M5 thread 6.4 [.25] Min

Full Thread depth, 2

Holes for Mounting

[.59]

[.30]

[.81]

[.75]

[.57]

[.87]

[.34]