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Materials pressure ratings – Cla-Val 90-01KO User Manual

Page 6

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Materials

Pressure Ratings

(Recommended Maximum Pressure - psi)

Component

Standard Material Combinations

Body & Cover

Ductile Iron

Cast Steel

Bronze

100-01KO Available Sizes

1

1/4

" - 36"

3

" - 16"

3

" - 16"

Disc Retainer &
Diaphragm Washer

Cast Iron

Cast Steel

Bronze

Trim: Disc Guide,
Seat & Cover Bearing

Bronze is Standard

Stainless Steel is Optional

Disc

Buna-N

®

Rubber

Diaphragm

Nylon Reinforced Buna-N

®

Rubber

Stem, Nut & Spring

Stainless Steel

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

Valve Body & Cover

Pressure Class

Flanged

Grooved Threaded

Grade

Material

ANSI

Standards*

150

Class

300

Class

300

Class

End‡

Details

ASTM A536

Ductile Iron B16.42

250

400

400

400

ASTM A216-WCB Cast Steel

B16.5

285

400

400

400

ASTM B62

Bronze

B16.24

225

400

400

400

Note:

* ANSI standards are for flange dimensions only.

Flanged valves are available faced but not drilled.

‡ End Details machined to ANSI B2.1 specifications.

Valves for higher pressure are available; consult factory for details

Model 100-01KO

Specifications

Operating Temp. Range

Pattern

Globe

Angle

Grooved End

Size

1

1/4

" - 36"

1

1/4

" - 16" & 24"

1

1/4

" - 8"

Fluids

-40° to 180° F

APPROVED

(4" - 24")

SELECTION GUIDELINE FOR KO ANTI-CAVITATION VALVES

400

350

300

200

150

100

50

0

0

10

20

30

40

60

50

70

80

OUTLET PRESSURE (psi)

250

INLET

PRESSURE (psi)

Cavitation

Zone

90

100

Notes: On Operating Differential

1. For atmospheric discharge, the maximum inlet pressure cannot exceed 150 psi.
2. For pressure differentials greater than 300 psi, the maximum flow velocity should not exceed 18 ft/sec.
3. Flow velocities greater than 25 ft/sec are not recommended.
4. Recommended minimum flow velocity is 1 ft/sec.
5. Consult factory for conditions exceeding these recommendations.

100G-01KO 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 FOR 18 FT/SEC CONTINUOUS DUTY APPLICATIONS

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

100000

3"

4"

6"

8"

10"

12"

2" 2

1/2

"

1

1/2

"

16"

14"

20"

36"

30"

18"

1

1/4

"

24"

100-01KO (Main Valve)