Control valves

Self-acting controls

4.5.25

KA43

3

7

6

12

1

4

5

8

2

15

Materials

No. Part

1 Body

2 Bonnet

3 Valve head

4 Valve seat ring

8 Bonnet gasket

12

Bonnet studs

Bonnet nuts

13 Bellows

14 Bellows gasket (not shown)

15 Bonnet bush

16 Plunger

KB43

and

KC43

3

5

7

13

15

Material

1

4

5

8

12

2

16

EN 10213 GP240 GH+N

DIN 17243 C22.8

EN 10213 GP240 GH+N

BS 970 431 S29

BS 970 431 S29

BS 1449 CS 4

BS 2056 302 S 26

BS 2872 CZ 121

BS 970 321 S20

BS 4439 Gr. 8.8

BS 3692 Gr. 8

EN 12449 Cu Sn 6

AISI 316 L

BS 2874 CZ 121

BS 2874 CZ 121

Valve seat

gasket

DN15 - DN25

DN32 - DN50

DN15 to DN25

DN32 to DN50

KA and KB

KC

KB

KC

Steel

Steel

Steel

Stainless steel

Stainless steel

Mild steel

Reinforced exfoliated graphite

Stainless steel

Brass

Stainless steel

Reinforced exfoliated graphite

Steel

Steel

Phosphor bronze

Stainless steel

Reinforced exfoliated graphite

Brass

Brass

5

6 Return spring

7 Stem

TI-P078-06 CH Issue 6

KA43, KB43 and KC43 Steel Self-acting Control Valves

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