Spirax Sarco - Catalogo Agosto 2017

Control valves

A

Steam

saturation

curve

G

E

F

4.1.31 Pressure / temperature limits - KEA71 and KEA73 (SG iron)

��

The product must not be used in this region.

Flanged JIS/KS 10.

Pressure psi g

��

Pressure bar g

��

A - E

A - F

A - G

Flanged ASME 250 and screwed NPT and SW.

Flanged ASME 125.

Body design conditions

Maximum design pressure

Maximum differential pressure design

Maximum design temperature

Minimum design temperature

Maximum operating temperature

ASME 125 and ASME 250

��

Notes:

1. Where 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.

2. When selecting a valve with a bellows sealed bonnet, the pressure / temperature limits of the bellows must be read in conjunction with

the valve pressure / temperature limits shown above.

3. As standard the KEA, KFA, KLA series two-port control valves are supplied with the PTFE stem sealing option.

ASME 125

ASME 250

PTFE soft seat (G)

PEEK soft seat (K)

Full PEEK seat (P)

PTFE soft seat (G)

Standard packing PTFE chevron

PEEK seat (K and P)

Graphite packing (H)

Extended bonnet (E) with PTFE chevron

Extended bonnet (E) with graphite packing

13.8 bar g @ 65 °C

34.5 bar g @ 65 °C

7 bar

19 bar

232 °C

-29 °C

200 °C

232 °C

(200 psi g @ 150 °F)

(500 psi g @ 150 °F)

(450 °F)

(-20 °F)

(392 °F)

(450 °F)

TI-S24-71 CH Issue 10

Spira-trol

Two-port Control Valves EN Standard KE, KF and KL DN15 to DN300 and ASME Standard KEA, KFA and KLA 1⁄2" to 12"

Page 20 of 29