Automatic Control

Valve Trainingpresented by: Joe Passalacqua – HyDEC

Course Objectives

Basic hydraulics reminder

Understanding…

On-OFF Valves Solenoid Valves

Altitude valves

Pump control valves

Modulating valves Pressure reducing valves

Pressure relief valves

Basic Hydraulics

Pressure X

Area

= Force

Line Pressure to Open

Line Pressure to Close

Just a reminder…

Water on the cover to close the

main valve

Water off the cover to open the

main valve

Knowing this makes

troubleshooting easier…

Cla-Val Automatic Control Valves

Consist of…

Main Valve

Pilot Control

System

CLA-VAL

“From the Smallest”

Color Photo

Close-Up

From the smallest: 3/8-inch

To the largest: 48 inch

40-inch Valves

Globe and Angle Pattern

Name Plate Locations

2-1/2” and larger

flanged valves

2” and smaller flanged valves and

all threaded and grooved valves

Cla-Val Nameplate

Flow Direction

Clayton Valley Level Control

Two Basic Types of Level Control

Float

Floatless

Floatless or Altitude Valve - 210 Series

Installation: Above Ground Tank,

Mission Viejo

Photo

Installation: Corona, CA

Photo

Basic Operation of 210 Series PVS

CDS6A Liquid Level Control

Three-way pilot

design

Spring adjustable

level setting

Reservoir level

sensed as pressure

head changes

CDS-6 is easy to adjust

Photo

CDS-6 has 5 adjustment ranges with 1 spring

Cla-Val CV Control

Free Flow Restricted Flow

Cla-Val CV Control

Clayton Valley

Pump Control Valves

Pump Control Valves

Model 60-11

Model 61-02

100-03 Booster Pump Control Valve

100-03 Powercheck

60-11 Booster Pump

Typical Deep Well Pump Station

100-02 Powertrol Valve

100-02 Powertrol

Clayton Valley

Pressure Reducing

Valves

Pressure Reducing Valves

Pressure Reducing Valves

• Function

• Pressure reducing valves shall maintain a

constant downstream pressure regardless of

changing flow rate and/or inlet pressure

• Opens on a drop in downstream pressure

• Closes on a rise in downstream pressure

• Modulates to meet system demand

Operation of 90 Series PVS

CRD Reducing Pilot Control

Normally open

Closes on pressure rise

Senses outlet pressure

Pressure Reducing Valve.swf

Sizing Factors and Cavitation

Flow rate capacity

At allowable pressure drop

At maximum velocity

Pressure rating

Of valve and pilot system

Of valve flange

Cavitation damage potential

Materials compatibility

Disc Close to Seat (Valve Cutaway)

Photo

100-01KO Anti-Cavitation Components

Disc Guide Seat

100-01KO Anti-Cavitation Valve

Radial slot design

Disc guide slots

Seat slots

Cast parts

316 stainless steel

Monel available for seawater service

Patented

Retrofit Kit

Clayton Valley

Pressure Relief Valves

Pressure Relief Valves

One Valve…Three Functions

Pressure Relief

Pressure Sustaining

Back Pressure

CRL Relief Pilot Control

Normally Closed

Opens on pressure rise

Senses inlet pressure

remotely

Basic Operation of 50 Series PVS

X42N-2 Strainer Needle Valve

Clayton Valley

Combination valves

Combination Valves

Only one function can work at a time, no

matter how many functions are on each valve

Hydraulic and/or electric

Pressure reducing/sustaining

Altitude with solenoid shut-off

Pressure reducing both ways

Pump control with flow control

There are thousands of

combination applications

Combination Valves

Model 92-01 Pressure

Reducing Pressure

Sustaining Control Valve

Model 93-01 Pressure

Reducing and Solenoid

Shut-Off Valve

Model 93-01 Pressure Reducing and

Solenoid Shut-Off Valve

Basic Operation of 93-01 PVS

92-01 Pressure Reducing/

Pressure Sustaining Control Valve

CRL & CRD Comparison

Basic Operation of 92-01 PVS

92-01 Pressure Reducing/Sustaining

Valve

Many More Features Can Be Added

• Remote Shut-Off

• Solenoid Control

• Return Flow

• Check Feature

• Rate of Flow Control

• Static Remote Sensing

• Electronic Controls

Remote Control Valves

Model 131-01

Model 350-02

133-01 Series Metering Valves

Monitors and

controls flow

Start-Up Procedures

1. All isolation valves are closed

2. Slightly open inlet isolation valve

3. Install X101 and gauges

4. Bleed air at all high points (pilot control and main valve)

5. Fully open inlet isolation valve

6. Adjust pilot controls to closed position and open all shut-off cocks

7. Slowly open downstream isolation valve

8. Set pilot controls after flow begins

Automatic Control Valves…

Can be the heart of a water system

Control surge

Control pressure

Control flow

Control level

Are subject to failure

Are a piece of mechanical equipment that

needs to be maintained

Misapplication?

Misinstallation – no water or

electricity - sense lines connected?

Inadequate maintenance

Why control valves don’t work…

Preventive Maintenance is a Program of :

Scheduling maintenance –

every year / 5 year rebuild

Keeping accurate service records!

Regular cleaning and inspection –

usually once a year.

Complete Valve Rebuilds

Manufacturers recommend a complete rebuild

every five years, depending on water quality,

(more often in valves which operate in a harsh environment)

A complete rebuild consists of:

Cleaning the main valve

Cleaning all pilots

Replacing all rubber parts, both in pilots

and main valve

Metal parts are replaced only as needed

Set-up a system to keep track of what kind of

service was done and when it was performed

Note the pressure settings

Record which parts were replaced

Note what types of problems the station or

valves may have had

Suggest which parts may be required at the

next maintenance

The Importance of Keeping Records

Around-the-Clock Technical Support

Service Training Manual

www.cla-val.com

HyDEC Corp. 1-800-874-6658

Experience the ripple effect of

superior products and

great serviceCla-Val

Thank you for your time and

attention!