Control valves

Control valves

Pressure / temperature limits - LE63 stainless steel valve body

A

Flanged EN 1092 PN16

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Please note - Bellows sealed valves

(Option D) are limited to A - A.

Note:

When the process fluid temperature

is sub-zero and the ambient

temperature is below +5 °C, the

external moving parts of the valve

and actuator must be heat traced

to maintain normal operation.

Steam

saturation

curve

A

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Pressure bar g

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Flanged JIS / KS 10

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Steam

saturation

curve

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Pressure bar g

The product must not be used in this region.

High temperature graphite packing is required for use in this region. Note: Soft seated valves cannot be used in this region.

PTFE soft seated valves are limited to a maximum operating temperature of 200 °C.

Body design conditions

Maximum design pressure

Maximum design temperature

Maximum differential pressure design

Minimum design temperature

Maximum operating temperature

See the Spira-trol

TM

selection

guide on page 18 for the full list

of available options

PN16

16 bar g @ 50 °C

400 °C @ 10.9 bar g

7 bar

7 bar

19 bar

-10 °C

250 °C

200 °C

250 °C

400 °C

250 °C

400 °C

300 °C

-28 °C

-10 °C

24 bar g

TI-S24-70 CH Issue 6

Spira-trol

TM

Two-port Control Valves EN Standard LE, LF and LL DN15 to DN100 and ASME Standard LEA, LFA and LLA 1⁄2" to 4"

PTFE soft seat (G)

PEEK soft seat (K)

Full PEEK seat (P)

Standard packing PTFE chevron

PTFE soft seat

PEEK soft seat

Graphite packing

Extended bonnet with PTFE chevron

Extended bonnet with graphite packing

Bellows (A - A on the LE63 chart)

- Option P

- Option G

- Option K

- Option H

- Option E

- Option E

- Option D

or N

or P

Minimum operating temperature

Note: For lower operating temperatures consult Spirax Sarco

PTFE packing

Graphite packing

Maximum differential pressures

See relevant actuator Technical Information sheet.

Maximum cold hydraulic test pressure of:

For valve operating above 300 °C extended bonnet is recommended for actuator suitability.

Page 9 of 18

4.1.50

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