Control valves

Control valves

Operating range

A

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Pressure bar g

The product should not be used in this region.

Flanged PN16

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Pressure bar g

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QL33M and QL33D

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(cast iron)

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A-B

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QL73M and QL73D

(SG iron)

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A - B

A - C

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QL43M and QL43D

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The product should not be used in this region.

High temperature packing is required.

Flanged PN25

Flanged PN16

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Steam

curve

saturation

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(carbon steel)

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Pressure bar g

The product should not be used in this region.

High temperature packing is required.

Flanged PN40

Flanged PN25

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A-B

A-C

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QL63M and QL63D

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(stainless steel)

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Pressure bar g

The product should not be used in this region.

High temperature packing is required.

Flanged PN40

Flanged PN25

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Steam

curve

saturation

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B

Steam

curve

saturation

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TI-P359-14 CH Issue 4

QLM and QLD Three-port Control Valves

Page 3 of 8

A - B

A - C

Steam saturation

curve

4.1.72

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C

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C

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