44
Technical Specifications (continued) Control systems Desuperheaters
Material
Maximum temperature
Pressure Rating Maximum allowable pressure
ASME 150
19.6 bar g (284.2 psi g)
ASME 300
51.1 bar g (741.1 psi g)
425 °C (797.0 °F)
ASME A216 WCB
ASME 600
102.1 bar g (1480.8 psi g)
ASME 900
153.2 bar g (2222 psi g)
400 °C (752 °F)
PN40
40.0 bar g (580.1 psi g)
PN63
63.0 bar g (913.7 psi g)
EN 10213 GP240GH (1.0619)
400 °C (752 °F)
PN100
100.0 bar g (1450.3 psi g)
ASME 150
19.8 bar g (287.1 psi g)
ASME 300
51.7 bar g (749.8 psi g)
ASME A217 WC9
538 °C (1000.4 °F)
ASME 600
103.4 bar g (1499.6 psi g)
Body materials²
ASME 900
155.1 bar g (2249.5 psi g)
PN40
40.0 bar g (580.1 psi g)
PN63
63.0 bar g (913.7 psi g)
EN 10213 G17CrMo9-10 (1.7379)
538 °C (1000.4 °F)
PN100
100.0 bar g (1450.3 psi g)
ASME 150
19 bar g (275.5 psi g)
ASME 300
49.6 bar g (719.3 psi g)
4.8 26
ASME A351 CF8M
538 °C (1000.4 °F)
ASME 600
99.3 bar g (1440.2 psi g)
ASME 900
148.9 bar g (2159.6 psi g)
PN40
40.0 bar g (580.1 psi g)
EN 10213 GX5CrNiMo19-11-2 (1.4408)
PN63
63.0 bar g (913.7 psi g)
538 °C (1000.4 °F)
PN100
100.0 bar g (1450.3 psi g)
Cylinder (Nozzles)
Plug
Seat
Gasket
Nozzles Temperature
Trim materials
538 °C (1000.4 °F)
SS 410
Stellite
Inconel
SS 410
SS 416
Nozzle
6A
6A1
9A1
6B 9B 6C 6D 3C6D 6E 3C6E 9E
Flow Coefficient - Cv
Cv
0.19
0.30 0.45 0.80 1.20 2.10 3.18 4.00 5.40 6.20 8.10
Kv
0.16
0.26 0.39 0.69 1.04 1.81 2.75 3.46 4.67 5.36 7.00
Supplied as standard with a pneumatic spring return actuator that closes the water supply in the event of pneumatic of control signal failure. An optional hand wheel (mechanical override) actuator is available upon request. Electric actuators can also be supplied upon request.
Actuator
Actuator temperature range
-10 °C to +80 °C (14 °F to 176 °F)
Actuator maximum pressure
6.21 bar (90 psi)
Actuator spring range
2.07 bar to 3.45 bar (30 psi to 50 psi)
2 Special materials available on request. For full operational limitations of the DA by material and pressure rating, please refer to IM-P605-11. Alternatively, please contact your local Spirax Sarco office.
TI-P605-10 TES Issue 5
Page 4 of 11
DA Series Variable Area Desuperheaters
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