Control valves

Self-acting controls

4.5.67

1

5

4

KC63 flanged

1

3

7

8

2

9

6

12

3

7

10

5

4

11

8

9

2

12

KA61 screwed

and

KA63 flanged

Materials

No. Part

1 Body

2 Bonnet

3 Head

4 Seat

5 Valve seat gasket

6 Return spring

7 Pushrod

8 Bonnet gasket

Material

DN15 to DN25

DN32 to DN40

DN50

Stainless steel

Stainless steel

Stainless steel

Stainless steel

Stainless steel

Stainless steel

Reinforced exfoliated graphite

Stainless steel

Stainless steel

Reinforced exfoliated graphite

Stainless steel

DIN 17445 G-X5 Ni Mo Nb 19-11-2 (WS14581)

DIN 17440 X5 Cr Ni Mo 17-12-2 (WS14401)

BS 970 431 S29 ASTM A276 431

BS 970 431 S29 ASTM A276 431

BS 3146 ANC2

BS 970 431 S29 ASTM A276 431

BS 2056 302 S26

Z15 CN 16 02 (BS 970 431 S29)

DIN ISO 3506 A2-80

DIN ISO 3506 A2-80

AISI 316L

BS 970 431S29 ASTM A276 431

9

Bonnet nuts

Bonnet studs

Stainless steel

DN15 - DN20

DN25 - DN40

DN50

10 Bellows assembly

11 Bellows gasket

12 Plunger

Kv values

Size

KA61 and KA63

KC63

For conversion:

Capacities

Stainless steel

Reinforced exfoliated graphite

Stainless steel

M10 x 30

M10 x 35

M12 x 35

DN15

2.90

-

Cv (UK) = Kv x 0.963

DN20

4.64

-

Cv (US) = Kv x 1.156

DN25

9.80

-

DN32

16.48

16.48

DN40

23.70

16.48

DN50

34.00

34.00

For saturated steam sizing capacities see TI-GCM-08.

For water valve sizing capacities see TI-GCM-09.

TI-P078-08 CH Issue 6

KA61, KA63 and KC63 Stainless Steel Self-acting Control Valves

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