Cla-Val 136-03-636-03 Quick Manual

INSTALLATION / OPERATION / MAINTENANCE

INTRODUCTION

The Cla-Val Model 136-03/636-03 Solenoid Control Valve is an
automatic valve designed to either close drip tight or open fully by
means of a Three-Way Solenoid Control. It is a hydraulically oper­ated, solenoid controlled, diaphragm type globe or angle valve.

INSTALLATION

1. Allow sufficient room around the valve assembly to make
adjustments and for disassembly.

Note: Before the valve is installed, the pipeline should be
flushed to remove all chips, scale and foreign matter.

2. It is recommended that gate or line block valves be installed
upstream and downstream of the Model136-03/636-03 to facilitate
isolating the valve for preventive maintenance.

3. Place the valve in the line with flow in the direction of flow
arrows or by the inlet nameplate. Check all fittings and hardware
for proper makeup and that no apparent damage is evident. Be
sure main valve cover nuts/bolts are tight. Pressure in some appli­cations can be very high so be thorough in checking and inspect­ing for proper installation and makeup.

4. Cla-Val Valves operate with maximum efficiency when mounted
in horizontal piping with the cover UP; however, other positions are
acceptable. Due to size and weight of cover and internal compo­nents of six inch valves and larger, installation with the cover up is
advisable. This makes periodic inspection of internal parts readily
accessible.

5. Caution must be taken in the installation of this valve to insure
that galvanic and/or electrolytic action does not take place. The
proper use of dielectric fittings and gaskets are required in all sys­tems using dissimilar metals.

6. Comply with local and national electrical codes when wiring the
Solenoid Control.

OPERATION AND START-UP

1. Prior to pressurizing the valve assembly make sure the neces­sary gauges to measure pressure in the system are installed as
required by the system engineer. A Cla-Val Model X101 Valve
Position Indicator can be installed in the center cover port to pro­vide visual indication of the valve diaphragm assembly position
during start-up.

CAUTION: During start-up and test procedures a large volume of
water may be discharged downstream. Check that the downstream
venting is adequate to prevent damage to personnel and equip­ment. If the main valve closes too fast it may cause surging in
upstream piping.

2. If isolation valves (B) are installed in pilot system open these
valves. (see schematic).

3. The three-way Solenoid Control applies or relieves pressure in
the 102C-3H three-way valve cover chamber. This, in turn, applies
or relieves pressure in the main valve cover chamber. The follow­ing action takes place:

SOLENOID CONTROL(2)

POSITION

ENERGIZED

DE-ENERGIZED

FLOW

1

TO2

3TO1

Note: Solenoids are not

ENERGIZED TO OPEN

136-03 SERIES

THREE-WAY
VALVE FLOW(3)
COM.

TO N.O.

TO COM.

N.C.

MAIN

VALVE (1)

OPEN

CLOSED

reversible because of different internal
construction between Energize to open and De-energize to open
solenoids.

DE-ENERGIZED TO OPEN

136-03 SERIES

THREE-WAY

VALVE FLOW(3)

TO COM.

N.C.
COM. TO N.O.

M
VALVE 1
CLOSED

OPEN

MODEL

136-03/636-03

Solenoid Control Valve

4. Check that solenoid (2) is set to close main valve. Slowly open
the gate or block valve upstream of the valve.

5. Carefully loosen tube fittings at highest points and bleed air
from system. Carefully loosen the plug at top of main valve cover.
If X101 Valve Position Indicator is installed, carefully open the
bleed valve at top of Indicator. Bleed air from cover and tighten
plug or bleed screw. Tighten tube fittings.

6. Slowly open downstream gate or block valve. Check the oper­ation of the valve by energizing and de-energizing the solenoid.
The valve should open fully and close drip tight.
Need minimum 5 psi differential under flowing coditions.

MAINTENANCE

1. Cla-Val Valves and Controls require no lubrication or packing
and a minimum of maintenance. However, a periodic inspection
schedule should be established to determine how the fluid han­dled is affecting the efficiency of the valve assembly. Minimum of
once per year.

2. Repair and adjustment procedures of the Cla-Val Hytrol main
valve and control components are included in a more detailed
IOM manual. It can be downloaded from our web site (www.cla­val.com) or by contacting a Cla-Val Regional Sales Office.

3. When ordering parts always refer to the catalog number

and stock number on the valve nameplate.

SYMPTON PROBABLE CAUSE REMEDY

AIN

Main Valve

Fails to Close

Main Valve
Fails to Open

Main Valve
Vibrates when
Closed

No flow condition Inspect downstream piping for

Too low pressure differential
across valve
Need minimum 5psi differential
under flow coditions

Closed isolation valves in pilot
system, or in main line

Lack of cover chamber pressure Check upstream

Diaphragm damaged Replac diaphragm

Mechanical obstruction
Object lodged in valve
Worn disc

Badly scored seat Replace seat

CNA needle valve closed Open this speed control to

Closed isolation valves in pilot
system, or in main line
Insufficient line pressure
Diaphragm assembly inoperative

Air in cover Bleed all air from valve

closed valve or obstruction

Restrict valve opening with
Cla-Val X102A
limiting assembly
(Contact Cla-Val)

Open valves

pressure, tubing needle
valves for restriction

Remove obstruction

Replace disc

allow pressure to cover

Open valves

Clean & polish stem
Replace and defective or
damaged parts

4

D1

Y

F

B

1

A

INDEPENDENT

OPERATING

PRESSURE

B

D2

2

3

S

B

H

DRAIN TO

ATMOSPHERE

INLET OUTLET

CS3

3

2

1

N.C.

N.O.

D3

COM.

136-03/636-03 SCHEMATIC

BASIC COMPONENTS

1 100-01 Hytrol (Main Valve)

100-20 600 Series Hytrol (Main Valve)
2 CS3 Solenoid Control
3 102C-3H Three-Way Valve
4 CNA Angle Needle Valve (Closing)

OPTIONAL FEATURES

A X46A Flow Clean Strainer
B CK2 (Isolation Valve)
D Check Valves with Isolation Valve
F Independent Operating Pressure
H Atmospheric Drain
S CNA Angle Needle Valve (Opening)
Y X43Y Strainer

SOLENOID WIRING

Wiring must comply with local and
National Electrical Codes. For valves
equipped with an explosion-proof,
watertight solenoid enclosure, the elec­trical fittings must be approved for use
in the approved hazardous locations.
Housings for all solenoids have con­nections for 1/2 inch conduit. The
enclosure may be rotated to facilitate
wiring.

1

HYTROL MAIN VALVE

COVER

Cover Bolt

6" and Smaller

SPRING

*

DIAPHRAGM

PIPE PLUG

COVER BEARING

STEM NUT

DIAPHRAGM WASHER

DISC RETAINER

HEX NUT

8" and Larger

PIPE PLUG

CS3

2

Manual Operator
(Optional)

CNA

4

Screw, Machine,
Fil. HD

Washer, Diaphragm

Washer,
Lock

Body,
Powertrol

Seelskrew

Seat, Valve,
Upper

Body

Seat, Valve, Lower

3

Cover

Spring

"O" Ring, Seat

102C-3H

X46A

102C-3H

3

A

Screw, Machine
RD. HD.

Gasket, Stem

"O" Ring

Washer, Diaphragm,
Spring Retaining

Gasket, Stem

Diaphragm

"O" Ring,
Body to Body

Stem Assembly

CLA-VAL

*

STEM

SPACER WASHERS

Seat Screw

8" and Larger

SEAT O-RING

8" and Larger

PIPE PLUG

*

Repair Parts

STUD

CDC-1

CK2

B

D

CV

C

X43

Y

*SUGGESTED REPAIR PARTS

N-136-03/636-03 (R-11/08)

*

DISC

DISC GUIDE

SEAT

BODY

(Globe or Angle)

For a more detailed IOM Manual go to www.cla-val.com or contact a Cla-Val Regional Sales Office.

P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: [phone] • Fax: [phone] • E-mail: [e-mail] • Website cla-val.com

©

Copyright Cla-Val 2008 Printed in USA Specifications subject to change without notice.