MODEL

MA VAD SA-35 MNSD VO PRDS

Turndown Ratio

MA-I MA-II       VO-76 VO-II  
2:1 2.5:1 15:1 25:1 Up to 40:1 Up to 100:1 50:1 Typ
(on coolant flow) (on coolant flow) (on vapor flow) (on coolant flow) (limited only by CVW) (on coolant flow)

Type of Atomizing

Mechanical Velocity Vapor Mechanical Velocity Velocity

Minimum outlet temperature

Sat. + 20°F

Sat. +10°F Sat. +15°F Sat. +15°F Sat. +10°F Sat. +10°F

Temperature control Accuracy

± 15°F ± 5°F ± 10°F ± 10°F ± 5°F ± 5°F

Mounting/Orientation

Any Any Any Vertical-up preferred Vertical w/ flow upward Any

ANSI Pressure Class

150-1500 2500 150-2500 150-600 150-1500 600-2500 150-2500 150-900 150-2500

Main Header Sizes:
@ minimum size

@ maximum size

3" 8" 8" 1" 4" 6" 2" 3" 1"
24" 30" 30" 16" 24" 24" No Limitations No Limitations

Size(s)

3" 1"-16"     (14) separate sizes 3-4, 4-6, 6-8, 8-10 (Fig. Size-Min. Header) 3/2, 3/3, 3/5, 4/5 (Fig. Size/Travel) 2"-24" 3"-20" Std. 1"x2" to 6"x12"
Custom 8"x16" & up

Std. End Connections:
Coolant Header

Mounting

SW Thd., Flg. or BW Flg. or BW Flanged Flanged Flanged SW
Welded Flg. or BW Flanged Flanged Flg. or BW Flanged SW / BW

Velocity Limits:
@ MAX Flow

@ MIN Flow

50 000 ft/min 1/3 sonic 50 000 ft/min 50 000 ft/min 30 000 ft/min Per Application
5 000 ft/min 1 800 ft/min 2000 ft/min 1000ft/min N/A 600 ft/min

Pressure Drop:
@ MAX Flow

@ MIN Flow

Negligible 3 psi nominal Negligible Negligible Per Application Per Application
Negligible Negligible Negligible Normally 3-5 psi

Required Coolant Pressure
Steam Line Pressure +

40-160 psi 60-400 psi 7-25 psi 10-40 psi 60-2000 psi 5-100 psi 5 psi Per Application

Atomizing Steam Pressure
(Nozzle D P) Line pressure +

N/A N/A Any N/A N/A N/A

Distance to Temprature Sensor

30-50 ft 20-33 ft 25-40 ft 16-30 ft 12-20 ft 12-18 ft

Min Straight Pipe Distance to
Elbow or Valve

Uptream

Downstream

3 pipe diameters
(not less than 3 ft)

6 pipe diameters (not less than 1 ft) 3 pipe diameters (not less than 4 ft)

5 pipe diameters (not less than 4 ft)

Install long radius, inlet and outlet.

5 pipe diameters (not less than 3 ft)

70% of "DTS"

50% of "DTS" 80% of "DTS"

70% of "DTS"

LR Elbow (Refer to spec)