8

2

4.5.33

8

1

3

4

5

KX31

Sizes 1⁄2" - 1"

2

6

3

4

8

5

1

7

6

Materials

No. Part

1 Body

2 Bonnet

3 Valve head

4 Valve seat ring

5 Valve seat gasket

6 Return spring

7 Stem

8 Bonnet gaskets

Material

9

Bonnet studs

Bonnet nuts

DN15 - DN25

DN32 - DN50

DN32 - DN40

DN50

Cast iron

Cast iron

Stainless steel

Stainless steel

Mild steel

Reinforced exfoliated graphite

Stainless steel

Brass

Reinforced exfoliated graphite

Steel

M10

M12

Phosphor bronze

Reinforced exfoliated graphite

DIN 1691 GG25

DIN 1691 GG25

BS 970 431 S29

BS 970 431 S29

BS 1449 CS 4

BS 2056 302 S 26

BS 2874 CZ 121

BS 4439 Gr. 8.8

BS 3692 Gr. 8

BS 3692 Gr. 8

EN 12449 Cu Sn 6

10 Bellows

11 Bellows gasket

KY31

Sizes 11⁄4" - 2"

6

9

10

1

8

11

3

4

5

8

2

2

Control valves

Self-acting controls

KX31

9

Page 2 of 3

KX31, KX33, KY31 and KY33 Cast Iron Self-acting Control Valves

TI-P078-01 CH Issue 8

Page 2 of 3

7

8

2

Sizes 11⁄4" - 2"

2

7