Description

The KA and KC range of two-port valves are used in conjunction

with Spirax Sarco SA control systems to provide a self-acting

temperature control unit.

Alternatively, they can be used as electrically actuated temperature

control valves by fitting an EL7200 Series electric actuator with a

suitable temperature transmitter and controller.

Available types

KA61 Normally open with screwed connections.

KA63 Normally open with flanged connections.

KC63

Normally open with stainless steel pressure balancing

bellows with flanged connections.

Standards

These products fully comply with the requirements of the

European Pressure Equipment Directive 97/23/EC and carry

the

mark when so required.

Certification

As standard these products are available with a manufacturers’

Typical Test Report. Additionally, at extra cost, certification to

EN 10204 3.1 can be supplied.

Note: All certification / inspection requirements must be stated at

the time of order placement.

Pressure / temperature limits

Sizes and pipe connections

KA61 Screwed 1⁄2", 3⁄4" and 1" BSP or NPT.

KA63 Flanged DN15, DN20, DN25, DN32, DN40 and DN50.

KC63 Flanged DN32, DN40 and DN50.

Flanged EN 1092 PN40 and ASME 300.

The following flange is also available on request: ASME 150.

A

Steam

saturation

curve

KA61 screwed

and

KA63 flanged

Control valves

Self-acting controls

Local regulations may restrict the use of this product to below the conditions quoted.

In the interests of development and improvement of the product, we reserve the right to change the specification without notice.

© Copyright 2015

KA61, KA63 and KC63

Stainless Steel

Self-acting Control Valves

C

B

TI-P078-08

CH Issue 6

4.5.66

T

e

m

p

e

r

a

t

u

r

e

°

C

A - B

A - C

The product must not be used in this region.

Screwed, flanged EN 1092 PN40 and ASME 300.

Flanged ASME 150.

Body design conditions

Maximum design pressure

Maximum design

temperature

A - B

A - C

PN40

37 bar g @ 50°C

260°C @ 27.7 bar g

260°C @ 11.5 bar g

-10°C

260°C @ 27.7 bar g

Minimum design temperature

Maximum operating

A - B

temperature

Minimum operating temperature

260°C @ 11.5 bar g

Maximum

differential

pressure

bar

KA61 17.0 10.0

KA63 17.0 10.0

KC63

-

-

4.5

-

4.5

3.0

-

16.0

-

-

2.0

1.5

16.0 13.8

Pressure bar g

A - C

Size DN15 DN20 DN25 DN32 DN40 DN50

0°C

Note: For lower operating temperatures consult Spirax Sarco

Designed for a maximum cold hydraulic test pressure of 60 bar g

KC63 flanged

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