Spirax Sarco - Catalogo Agosto 2017

Control valves

Steam

saturation

curve

4.1.49

Steam

saturation

curve

Pressure / temperature limits - LE43 carbon steel valve body

Flanged EN 1092 PN16

400

300

250

200

100

-10

��

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.

Pressure bar g

Flanged JIS / KS 10

The product must not be used in this region.

High temperature graphite packing is required for

PTFE soft seated valves are limited to a maximum

��

Pressure bar g

use in this region. Note: Soft seated valves cannot be used in this region.

operating temperature of 200 °C.

PN16

16 bar g @ 50 °C

400 °C @ 9.5 bar g

7 bar

19 bar

-10 °C

250 °C

200 °C

250 °C

400 °C

250 °C

400 °C

300 °C

-10 °C

24 bar g

TI-S24-70 CH Issue 6

Spira-trol

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

Body design conditions

Maximum design pressure

Maximum design temperature

Maximum differential pressure design

Minimum design temperature

Maximum operating temperature

See the Spira-trol

selection

guide on page 18 for the full list

of available options

Minimum operating temperature

Maximum differential pressures

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 LE43 chart)

Note: For lower operating temperatures

- Option P

- Option G

- Option K

- Option H

- Option E

- Option D

or N

or P

consult Spirax Sarco

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.

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