Product Handbook 2026 - Volume 1

Control systems Desuperheaters

4

How to order Product Nominal Diameter

DA

DA

3

3

Code

Nozzle

Stroke (mm)

6A

²Cv = 0.19 ²Cv = 0.30 ²Cv = 0.45 ²Cv = 0.80 ²Cv = 1.20 ³Cv = 2.10 ³Cv = 3.18 ³Cv = 4.23 ³Cv = 5.40 ³Cv = 6.45 ³Cv = 8.10

²Kv = 0.16 ²Kv = 0.26 ²Kv = 0.39 ²Kv = 0.69 ²Kv = 1.04 ³Kv = 1.81 ³Kv = 2.75 ³Kv = 3.46 ³Kv = 4.67 ³Kv = 5.36 ³Kv = 7.00

40.90 40.90 40.90 54.10 54.10 72.40 80.30 80.30 84.80 84.80 84.80

6A1 9A1

6B 9B 6C 6D

Nozzle and Stroke (mm)

6A1

3C6D

6E

3C6E

9E

Code

Class (Steam and Water)

Standard

150 300 600 900

ASME 150 ASME 300 ASME 600 ASME 900

ASME B16.5 ASME B16.5 ASME B16.5 ASME B16.6

Class (Steam and Water) and Standard

150

4.8 31

PN40 PN63

PN40 PN63

EN1092-1 EN1092-1 EN1092-1 Standard

PN100 Code

PN100

Steam End Flange

Steam Connection

FR

FR

Raised Face

ASME B16.5/EN1092-1

¹RTJ Code

Ring Joint Face

ASME B16.5

Water End Flange

Standard

Water Connection

FR

FR

Raised Face

ASME B16.5/EN1092-1

¹RTJ Code WCB WC9 CF8M

Ring Joint Face

ASME B16.5

Body Material

ASME SA-216 Gr. WCB /EN 10213 GP240GH (1.0619) 4 ASME SA-217 Gr. WC9/EN 10213 G17CrMo9-10 (1.7379) 4 ASME SA-351 Gr. CF8M/EN 10213 GX5CrNiMo19-11-2 (1.4408) 4

Body Material

WC9

Flange

SOL

SOL

Integral

Trim Material

Temperature

Code

Plug and seat SS410 and Stellite

Trim Material and Temperature (◦C)

Stem

Seal Ring

Min.

Max.

1

0 °C (32 °F)

538 °C (1000.4 °F)

1

SS316

Inconel

Code

Actuator

Actuator

0 3

0

Pneumatic actuator with spring return

Pneumatic actuator with spring return and handwheel (available on request)

Code

Spring Range

Maximum Differential Pressure

Spring Range and Differential Pressure

C

C

2.07 bar to 3.45 bar (30 psi to 50 psi)

75 bar (1087.78 psi)

Notes: ¹ RTJ end flanges available on request, only for ASME 600 and ASME 900.

² Steam pipe: 6" (minimum)/24" (maximum) ³ Steam Pipe: 8" (minimum)/24" (maximum) 4 EN Material available for PN63 and PN100 only

TI-P605-10 TES Issue 5

Page 9 of 11

DA Series Variable Area Desuperheaters

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