Cla-Val 58-01-658-01 Quick Manual

INSTALLATION / OPERATION / MAINTENANCE

Combination Back Pressure & Solenoid

INTRODUCTION

The Cla-Val Model 58-01/658-01 valve performs two separate func­tions. When the solenoid is activated, it maintains a constant back
pressure by discharging excess pressure downstream. When the
solenoid is de-activated, the valve closes drip-tight. When the sole­noid is activated, the valve is actuated by hydraulic line pressure
through the pilot control system. When inlet pressure is greater than
the control setting, the valve opens. When inlet pressure is equal to
the control setting, the pilot modulates the valve, maintaining the pre­selected back pressure. When inlet pressure is less than the control
setting, the pilot system closes the valve drip tight. Changing the
pressure setting simply involves turning an adjusting screw on the
pilot control.

INSTALLATION

1. Allow sufficient room around the valve assembly to make adjust-

ments and for servicing.

2. lt is recommended that gate or block valves be installed to facili­tate isolating valve for preventative maintenance. When used as a
surge control or pressure relief valve where valve outlet discharge
is to atmosphere, then a gate or block valve is needed at valve
inlet. When used as a back pressure sustaining control valve
where valve outlet is connected to pressurized downstream sys­tem, then gate or block valves are needed at valve inlet and

NOTE: BEFORE THE VALVE IS INSTALLED, PIPE LINES
SHOULD BE FLUSHED OF ALL FOREIGN MATTER.

3. Place valve in line with flow through valve in direction indicated

on inlet plate or flow arrows. Check all fittings and hardware for
proper makeup and verify that no apparent damage is evident.

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 on six inch and larger valves, 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.

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 X101 Valve Position Indicator may
be installed in the center cover port to provide a visual indication of
the valve stem position during startup adjustment..

CAUTION: During start-up and test a large volume of water may
be discharged downstream. Check that the downstream venting is
adequate to prevent damage to personnel and equipment. All

pilot adjustments should be made slowly in small increments.

If the main valve closes too rapidly it may cause surging in
upstream piping.

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

outlet.

MODEL

58-01/658-01

Shut-off Valve

3. The three-way Solenoid Control applies or relieves pressure in
the cover chamber of the Auxiliary Hytrol Valve (5) in the control
piping. The following action takes place:

Solenoid Control (4)

Position Port Flow

Energized 1 to 2

De-Energized 1 to 3

4. Loosen jam nut on X42N-2 strainer valve assembly and turn
adjusting stem clockwise until it seats. Then turn stem counterclock­wise 1/4 to 1/2 turn and tighten jam nut for an initial setting.

5. Remove cap on the CRL Pressure Relief Control, loosen jam nut
and turn adjusting screw clockwise until spring is fully compressed.
This puts the control in full closed mode and will cause the main
valve to close when system is pressurized.

6. If a downstream block valve is installed, slowly open this valve.

7. Partially open upstream block valve. The main valve should

close.

8. Carefully loosen the plug at top of indicator assembly. If an indi­cator (X101) is installed, loosen the bleed valve at top of indicator.
Bleed air from cover and tighten plug or bleed valve.
Carefully loosen tubing fittings at highest points and bleed air from
system. Retighten fittings.

9. Open fully the upstream block valve and turn the CRL adjusting
screw slowly counterclockwise until you begin to hear a flow through
the control. The main valve should start to open. If the pressure is
below the required relief setting, refer to the spring chart and turn the
adjusting screw clockwise the number of turns required for the prop­er setting. Lock the jam nut and replace cover. An observation of the
pressure relief setting should be made during usage. The controls
can be readjusted as required.

10. To check the operation of the solenoid shutoff feature, alternate­ly energize and de-energize the solenoid to open and close the main
valve. The main valve should alternately close drip tight and open to
set point of the CRL. The optional manual operator on solenoid over­rides operation by shifting it to the energized position when small red
knob is fully turned clockwise. By turning small red knob counter­clockwise fully normal solenoid operation is restored.

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 is affecting the
efficiency of the valve assembly. Minimum of once per year.

2. Repair and maintenance procedures of the Hytrol Main Valve and
control components are included in a more detailed IOM manual. It
can be downloaded from our web site (www.cla-val.com) or obtained
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.

Energized to Open

Cla-Val 58-01

Auxiliary (5) and

Main Valve (1)
OPEN RELIEVES

COVER PRESSURE

CLOSED APPLIES

COVER PRESSURE

De-Energized to Open

Cla-Val 58-01

Auxiliary (5) and

Main Valve (1)

CLOSED APPLIES

COVER PRESSURE

OPEN RELIEVES

COVER PRESSURE

58-01/658-01 SCHEMATIC

Ajusting Screw
(3/8" - 16UNF THREAD)

INLET

1/8 - 27 NPT
SENSING
CONNECTION

OUTLET

Cap

Screw, Adjusting

Nut Hex (Locking)

Cover

Guide, Spring

Spring

Washer, Belleville

Washer, Diaphragm
(Upper)

Screw Fil. Hd.*

Diaphragm*
Washer, Diaphragm
(Lower)

O-Ring, Stem*

Nameplate

Body, Powerunit

O-Ring, Body*

Body

Nut, Hex,Stem, Lower

Seat

O-Ring, Seat

Guide, Spring

Nut, Stem, Upper

*O-Ring, Stem

Stem

*Disc Retainer Assy.

1/2" or 3/4" NPT

(2 places)

3

CRL

X140-1

Security Cap

Option

F

REMOTE
SENSING

D1

S

B1

BASIC COMPONENTS

1 100-01 Hytrol (Main Valve)
2 X42N-3 Strainer Needle Valve
3 CRL Pressure Relief Control
4 CS3 Solenoid Control
5 100-01 Hytrol (Reverse Flow)

B1

INLET OUTLET

4

CS3

2

3

1

2

5

D3

1

OPTIONAL FEATURES

B CK2 (Isolation Valve)
D Check Valves with (Isolation valve)
F Remote Pilot Sensing
H Drain to Atmosphere
S CV Flow Control (Opening)

H

DRAIN TO

ATMOSPHERE

3

B2

D2

CRL adjust range (psi)

0 - 75

20 - 200

100 - 300

Spring Color

Red

Green

Chrome Vanadium

psi change per turn*

* approximate. Use gauge at valve inlet to set.

X42N-3

1

2.

CS3

4

100-01 Hytrol (Reverse Flow)

5

CK2

B.

CDC-1

D

CV

S.

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

©

CLA-VAL

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

HYTROL MAIN VALVE

COVER

Cover Bolt

6" and Smaller

SPRING

*

DIAPHRAGM

*

DISC

DISC GUIDE

SEAT

BODY

(Globe

or

Angle)

PIPE PLUG

COVER BEARING

STEM NUT

DIAPHRAGM WASHER

DISC RETAINER

*

SPACER WASHERS

STEM

Seat Screw

8" and Larger

SEAT O-RING

*

HEX NUT

8" and Larger

PIPE PLUG

STUD

8" and Larger

PIPE PLUG

Repair Parts

SYMPTOM PROBABLE CAUSE REMEDY

Main valve
won't open

Inlet pressure below setting of
pilot valve

Reset pilot valve. If change in
setting is from tampering seal
cap with wire and lead seal.

Pilot valve stuck closed. Mineral
deposit or foreign material
between disc retainer and

Disassemble control and
clean

powerunit body.
Pilot valve diaphragm ruptured or

diaphragm nut loose. Water com­ing out of the vent hole in cover.

Disassemble and replace
diaphragm. Tighten nut.

Main valve stuck closed Disassemble main valve

Clean parts and/or replace
Mineral buildup on stem.
Stem damaged

damaged part. Check down-

stream and cover CK2 isola-

tion valve are open.

Main Valve
won’t close

Inlet pressure above setting of
pilot valve

Clogged needle valve or strainer Disassemble and clean

Reset pilot valve

Pilot valve stuck open. Mineral
deposit or foreign material under
disc retainer or under diaphragm

Disassemble and clean

assembly.

Main valve stuck open. Mineral
buildup on stem. Foreign material

Disassemble and clean
between seat and disc assembly.

Main valve diaphragm worn Disassemble and replace

Valve leaks
continuously

Solenoid
Val ve
will not
operate

Pilot valve disc worn out Disassemble and replace
Main valve disc worn or small pin

hole in main valve diaphragm

Set-point too close to inlet pres­sure

Disassemble and replace

Reset CRL Pilot Control

Solenoid Symptoms

Check voltage across coil
Solenoid voltage

leads must be minimum of

85% of nameplate rating

Burned out solenoid coil

Check for open circuit coil

Replace coil

8.5
28
18

N-58-01/658-01 (R-1/08)