Cla-Val 100-20KO User Manual

MODEL

100-20KO

(Reduced Internal Port)

Anti-Cavitation Hytrol Valve

• Virtually Cavitation Free Operation

• Severe Service Design - High Pressure Differentials

• Reduced Noise and Vibration

• 316 Stainless Steel Disc Guide and Seat Standard

• Drip-Tight, Positive Sealing

• Serviced Without Removal From Line

• Retrofit to Standard Hytrol Valves

The Cla-Val Model 100-20KO Anti-Cavitation Hytrol Valve is designed for appli­cations where there is a high potential for damage from cavitation. Specify this
valve series for a wide variety of control valve applications having pressure dif­ferentials up to 350 psid or for relief valves having atmospheric discharge up to
150 psid.

The 100-20KO Hytrol main valve provides optimum internal pressure control
through a unique anti-cavitation trim design. Constructed of 316 Stainless Steel,
the seat and disc guide trim components feature dual interlocked sleeves con­taining radial slots that deflect internal flow to impinge upon itself in the center of
the flow path, harmlessly dissipating the potential cavitation damage. This unique
design also lessens the possibility of fouling if large particles in the water are pres­ent due to the large flow path of the radial slots.

The 100-20KO Hytrol is the basic valve used in Cla-Val Automatic Control Valves
for high differential applications requiring remote control, pressure regulation, so­lenoid operation, rate of flow control, or liquid level control.

The Anti-Cavitation Trim components can be retrofitted to existing valves if the
application indicates an appropriate need. Please consult factory for details.

Principle of Operation

On-Off Control

Full Open Operation

When pressure in the
relieved to a zone of lower pressure,
the line pressure at the valve inlet
opens the valve, allowing full flow.

cover chamber is

On-Off Control

Tight Closing Operation

When pressure from the valve inlet
is applied to the cover chamber, the
valve closes drip-tight.

Modulating

Control

Modulating Action

The valve holds any intermediate posi­tion when operating pressures are
equal above and below the di­aphragm. A Cla-Val “Modulating” Pilot
Control will allow the valve
to automatically compen­sate for line pressure
changes.

Specifications

EE

D

E

Inlet

DD

AA

F

A

C

(MAX)

K

J

H

Inlet

Outlet

FF

B

(Diameter)

Pattern Globe Angle

Size 3" - 36" 4" - 6" - 8"

Operating Temp. Range

Fluids

-40°to 180°F

Model 100-20KO

Pressure Ratings

Valve Body & Cover

Grade Material

ASTM A536 Ductile Iron B16.42 250 400

ASTM A216-WCB Cast Steel B16.5 285 400

ASTM B62 Bronze B16.24 225 400

Note: * ANSI standards are for flange dimensions only.

Flanged valves are available faced but not drilled.

Valves for higher pressure are available; consult factory for details

(Recommended Maximum Pressure - psi)

Pressure Class

Flanged

ANSI

Standards*

150

Class

Class

300

Dimensions

Materials

Component Standard Material Combinations

Body & Cover Ductile Iron Cast Steel Bronze

Available Sizes 3" - 36" 3" - 16" 3" 16"
Disc Retainer &

Diaphragm Washer
Trim: Disc Guide,

Seat & Cover Bearing

Disc Buna-N®Rubber
Diaphragm Nylon Reinforced Buna-N
Stem, Nut & Spring Stainless Steel

For material options not listed consult factory.
Cla-Val manufactures valves in more than 50 different alloys.

Cast Iron Cast Steel Bronze

Stainless Steel is Standard

®

Rubber

Cla-Val Control Valves with KO ANTI-CAVITA­TION Trim operate with maximum efficiency
when mounted in horizontal piping with the
main valve cover Up. We recommend isola­tion valves be installed on inlet and outlet for
maintenance. Adequate space above and
around the valve for service personnel should
be considered essential. A regular maintenance
program should be established based on the
specific application data. However, we recom­mend a thorough inspection be done at least
once a year. Consult factory for specific rec­ommendations.

Valve Size (Inches) 3468101214161820243036
A 150 ANSI 10.25 13.88 17.75 21.38 26.00 30.00 34.25 35.00 42.12 48.00 48.00 63.25 65.00
AA 300 ANSI 11.00 14.50 18.62 22.38 27.38 31.50 35.75 36.62 43.63 49.62 49.75 63.75 67.00
B Dia. 6.62 9.12 11.50 15.75 20.00 23.62 27.47 28.00 35.44 35.44 35.44 53.19 56.00
C Max. 7.00 8.62 11.62 15.00 17.88 21.00 20.88 25.75 25.00 31.50 31.50 43.94 54.60
D 150 ANSI — 6.94 8.88 10.69 —————21.06 — — —
DD 300 ANSI — 7.25 9.38 11.19 —————————
E 150 ANSI — 5.50 6.75 7.25 —————15.94 — — —
EE 300 ANSI — 5.81 7.25 7.75 —————————
F 150 ANSI 3.75 4.50 5.50 6.75 8.00 9.50 11.00 11.75 15.88 14.56 17.00 19.88 25.50
FF 300 ANSI 4.12 5.00 6.25 7.50 8.75 10.25 — 12.75 15.88 16.06 19.00 22.00 27.50
H NPT Body Tapping .375 .50 .75 .75 111111112
J NPT Cover Center Plug .50 .50 .75 .75 1 1 1.25 1.25 22222
K NPT Cover Tapping .375 .50 .75 .75 111111112

Stem Travel 0.6 0.8 1.1 1.7 2.3 2.8 3.4 3.4 4.5 4.5 4.5 6.5 7.5
Approx. Ship Wt. Lbs. 45 85 195 330 625 900 1250 1380 2365 2551 2733 6500 9120

Valve Size (mm) 80 100 150 200 250 300 350 400 450 500 600 750 900
A 150 ANSI 260 353 451 543 660 762 870 889 1070 1219 1219 1607 1651
AA 300 ANSI 279 368 473 568 695 800 908 930 1108 1260 1263 1619 1702
B Dia. 168 232 292 400 508 600 698 711 900 900 900 1351 1422
C Max. 178 219 295 381 454 533 530 654 635 800 800 1116 1387
D 150 ANSI — 176 226 272 —————————
DD 300 ANSI — 184 238 284 —————————
E 150 ANSI — 140 171 184 —————————
EE 300 ANSI — 148 184 197 —————————
F 150 ANSI 95 114 140 171 203 241 279 298 403 370 432 505 648
FF 300 ANSI 105 127 159 191 222 260 — 324 403 408 483 559 699
H NPT Body Tapping .375 .50 .75 .75 111111112
J NPT Cover Center Plug .50 .50 .75 .75 1 1 1.25 1.25 2 2222
K NPT Cover Tapping .375 .50 .75 .75 111111112

Stem Travel 15 20 28 43 58 71 86 86 114 114 114 165 191
Approx. Ship Wt. Kgs. 20 39 89 150 284 409 568 627 681 1157 1249 2951 3876

Functional Data

K =

894d

4

C

2

v

L =

K
12 f

K Factor (Resistance Coefficient)

The Value of K is calculated from the formula:
(U.S. system units)

Equivalent Length of Pipe

Equivalent lengths of pipe (L) are determined from the formula:
(U.S. system units)

Fluid Velocity

Fluid velocity can be calculated from the following formula:
(U.S. system units)

d

V =

.4085 Q

2

d

C

V

Factor

Formulas for computing C Factor, Flow (Q) and Pressure Drop

V

( P):

C

V

=

Q

P

C

V

=

Q

P

C

V

=

Q

P

2

V

Where:

U.S. (gpm) @ 1 psi differential at 60 F water

(l/s) @ 1 bar (14.5 PSIG) differential

or

at 15 C water

inside pipe diameter of Schedule 40 Steel Pipe (inches)

friction factor for clean, new Schedule 40 pipe

(dimensionless) (from Cameron Hydraulic Data,

18th Edition, P 3-119)

Resistance Coefficient (calculated)

Equivalent Length of Pipe (feet)

Flow Rate in U.S. (gpm) or (l/s)

Fluid Velocity (feet per second) or (meters per second)

Pressure Drop in (psi) or (bar)

=

=

=

=

=

=

=

=

=

P

V

Q

L

K

f

d

C

100G-20KO ANTI-CAVITATION VALVE CURVES

100

10

1000

10000

FLOW RATE (gpm)

10

100

PRESSURE DROP (psi)

400

1

300

SOLID LINE IS FULL OPEN FLOW CURVES AT 18 FT/SEC FOR CONTINUOUS DUTY APPLICATIONS

DASHED LINE IS FULL OPEN FLOW CURVE AT 25 FT/SEC FOR INTERMITTENT DUTY APPLICATIONS

4"

6"

8"

10"

12"

14"

3"

30"

16"

24"

18"

20"

36"

Valve Size

Globe

K

V

Opens

Pattern

Angle

Pattern

Globe

Pattern

Angle

Pattern

C

Factor

Equivalent

Length
of Pipe

Factor

Liquid Displaced from Cover

Chamber When Valve

Inches
mm.
Gal./Min. (gpm.)
Litres/Sec. (l/s.)
Gal./Min. (gpm.)
Litres/Sec. (l/s.)
Feet (ft.)
Meters (m.)
Feet (ft.)
Meters (m.)

Globe Pattern
Angle Pattern

3 4 6 8 10 12 14 16 18 20 24 30 36
80 100 150 200 250 300 350 400 450 500 600 760 900
25 46 98 240 409 660 910 925 1175 1225 1271 3900 6200

6.0 11.0 23.5 57.7 98 159 219 222 342 348 358 708 1490
— 49 105 230 CF** CF** CF** CF** CF** 1200 CF** — —
— 11.8 25.2 55 CF** CF** CF** CF** CF** 288 CF** — —

1800 2191 4244 3404 3884 3190 3359 6472 6155 9752 22789 8373 8611

549 668 1294 1038 1184 972 1024 1973 1876 2973 6946 2552 2625

— 1931 3697 3257 CF** CF** CF** CF** CF** CF** CF** — —
— 589 1127 993 CF** CF** CF** CF** CF** CF** CF** — —

127 111 126 72 65 42 40 67 53 75 145 39 33

— 98 110 69 — — — — — — — — —

U.S. Gal. .03 .08 .17 .53 1.26 2.5 4.0 4.0 9.6 9.6 9.6 29.0 42.0
Litres .12 .30 .64 2.0 4.8 9.5 15.1 15.1 36.2 36.2 36.2 110 159

Model 100-20KO

For assistance in selecting appropriate valve options or valves manufactured with special design requirements, please contact our Regional Sales Office or Factory.

SELECTION GUIDELINE FOR KO ANTI-CAVITATION VALVES

400

350

Cavitation

300

250

200

150

INLET PRESSURE (psi)

100

50

0

010

Zone

20 30

40 60

OUTLET PRESSURE (psi)

50

70 80

90 100

*

*

Notes: On Operating Differential

*The 100-20KO Series is the reduced inter-

nal port size version of the 100-01KO Series.

1. For atmospheric discharge, the

2. For pressure differentials greater

3. Flow velocities greater than 25 ft/sec

4. Recommended minimum flow velocity

5. Consult factory for conditions

maximum inlet pressure cannot
exceed 150 psi.

than 300 psi the maximum flow
velocity should not exceed 18 ft/sec.

are not recommended.

is 1 ft/sec.

exceeding these recommendations.

COVER

Cover Bolt

6" and Smaller

*

DIAPHRAGM

*

DISC

KO
DISC GUIDE

KO
SEAT

BODY

(Globe
Shown)

SPRING

PIPE PLUG

COVER BEARING

STEM NUT

DIAPHRAGM WASHER

DISC RETAINER

*

SPACER WASHERS

STEM

Seat Screw

10" and Larger

SEAT O-RING

*

HEX NUT

10" and Larger

PIPE PLUG

STUD

10" and Larger

PIPE PLUG

Repair Parts

100-20KO Hytrol Main Valve with Anti-Cavitation Trim Purchase Specifications

C

Function

The valve shall be hydraulically operated, single diaphragm actuated, globe pattern. The valve shall consist of three major compo­nents: the body with seat installed, the cover with bearing installed, and the diaphragm assembly. The diaphragm assembly shall be
the only moving part and shall form a sealed chamber in the upper portion of the valve, separating operating pressure from line pres­sure. Packing glands and/or stuffing boxes are not permitted and there shall be no pistons operating the main valve or pilot controls.
Ductile Iron is standard, other materials shall be available. No fabrication or welding shall be used in the manufacturing process.

Description

The anti-cavitation features of the seat and disc guide detail shall have flow slots equally spaced around their perimeters. The seat slots shall be
orientated around the perimeter of the seat so that fluid entering the valve shall flow through the seat slot detail such that the fluid flow converges
in the center chamber of the seat allowing potential cavitation to dissipate. The disc guide slots shall be positioned around the perimeter of the
disc guide, configured and oriented in an angular direction so that fluid flow exiting through the slots is diverted away from direct impact into pres­sure boundary surfaces. Flow exiting the disc guide slots is directed in an angular path to increase the distance between the slot geometry and
pressure boundary surfaces. If cavitation conditions exist, the increased distance between the slots and pressure boundary surfaces minimizes
the potential for damage by allowing the cavitation bubbles to dissipate before they come in contact with pressure boundary surfaces. Anti-cav­itation characteristics shall be controlled by the described slotted seat and disc guide components. The disc guide shall slide in the seat and allow
controlled flow through the seat slots into the central seat chamber where flow shall continue from the seat chamber and exit through the angu­larly oriented slots of the disc guide. The seat and disc guide features used together shall provide anti-cavitation characteristics suitable for ap­plications where a large controlled pressure drop is desired.
The flexible, non-wicking, FDA approved diaphragm shall consist of nylon fabric bonded with synthetic rubber compatible with the op­erating fluid. The diaphragm must withstand a Mullins burst test of a minimum of 600 psi per layer of nylon fabric and shall be cycle
tested 100,000 times to insure longevity. The diaphragm shall be fully supported in the valve body and cover by machined surfaces
which support no less than one-half of the total surface area of the diaphragm in either the fully open or fully closed position.
The valve seat in eight inch and smaller size valves shall be threaded into the body. Valve seat in ten inch and larger size valves shall
be retained by flat head machine screws for ease of maintenance. The seat shall be of the solid, one-piece design and shall have a
minimum of a five degree taper on the seating surface for positive drip-tight shut-off. Pressed-in bearings and/or multi-piece seats shall
not be permitted.
To insure proper alignment of the valve stem, the valve body and cover shall be machined with a locating lip. No "pinned" covers to
the valve body shall be permitted. All necessary repairs and/or modifications other than replacement of the main valve body shall be
possible without removing the valve from the pipeline.
The valve manufacturer shall warrant the valve to be free of defects in material and workmanship for a period of three years from date
of shipment, provided the valve is installed and used in accordance with all applicable instructions. The valve manufacturer shall be
able to supply a complete line of equipment from 1

1

⁄4" through 48" sizes and a complete selection of complementary equipment.

Material Specification

Valve Size: Pressure Rating:
Main Valve Body and Cover: Temperature Range:
Main Valve Trim: Coating:
End Detail: Desired Options:

Application Information

Inlet/Outlet Pressures:
Flow Rate:
Pipe Diameter:
Function (i.e. - Pressure Reducing, Pressure Relief, etc.):

This valve shall be a Cla-Val Model No. 100-20KO Hytrol Main Valve with
Anti-Cavitation Trim as manufactured by Cla-Val, Newport Beach, CA

Note: Add this Hytrol Anti-Cavitation Trim Purchase Specification to main valve
specification for control valves where there is a high potential for cavitation damage.
Please contact our Regional Sales Offices or Factory for assistance.

LA-VAL

PO Box 1325 Newport Beach CA 92659-0325

E-100-20KO (R-01/2013)

Phone: [phone] Fax: [phone]

CLA-VAL CANADA CLA-VAL EUROPE

4687 Christie Drive
Beamsville, Ontario
Canada L0R 1B4
Phone: [phone]
Fax: [phone]

©COPYRIGHT CLA-VAL 2012 Printed in USA

Specifications subject to change without notice.

Chemin dés Mesanges 1
CH-1032 Romanel/
Lausanne, Switzerland
Phone: [phone]
Fax: [phone]

www.cla-val.com

Patented

The Anti-Cavitation Trim components can be
retrofitted to existing Hytrol valves if the ap­plication indicates an appropriate need.
Please consult factory for details.

Represented By: