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Steel Separator SC4-SS

Moisture Separatorsare used to improvethe quality of steamor compressed aireither within the dis-tribution system or onthe supply inlet toequipment. Removalof moisture is by aseries of baffles onwhich the suspendedwater dropletsimpinge and fall outby gravity to thedrain, which must bepiped to a trap.

n

Model ➪ SC4-SS

PMO 300/150 psig

Sizes 1/2" to 8"

Connections ANSI 300/ ANSI 150ANSI 300

Construction Fabricated steel body

ASME code stamped 300 psig/150psig

Options stamped. Gauge Glass Assembly 1/2" to 8"

No. Part Material

1 Body (1/2" to 8") SS ASTM SA 182

2 End Caps (1/2" to 8") SS ASTM SA 1823 Coupling SS ASTM SA 1824 Screen (4" & 6") SS ASTM SA 1825 Baffle SS ASTM SA 1826 Plug SS ASTM SA 1827 Flanged End Connections SS ASTM SA 182

316L

.

C C

BB

A A

D-DrainD-Drain

G

2 3 6

15

7

4

Designed to Section VIII Division I and CSA B51

F-VentF-Vent

Dimensions (nominal in inches and millimeters) Size A B C D&F G

½" 14.5 (368)

5.2 (132)

10 (254)

½" N/A

¾" 14.5 (368)

5.2 (132)

10 (254)

½" N/A

1" 14.5 (368)

5.2 (132)

10 (254)

½" N/A

1½" 20 (508)

7.75 (197)

14.25 (362)

½" N/A

2" 20 (508)

7.75 (197)

14.25 (362)

½" N/A

2½" 31.5 (806)

12 (305)

19.5 (495)

1½" 8.2 (208)

3" 31.75 (806)

12 (305)

19.5 (495)

1½" 8.2 (208)

4" 31.75 (806)

12 (305)

19.5 (495)

1½" 8.2 (208)

6" 36.5 (927)

13.6 (345)

27 (689)

1½" 10.4(264)

8" 47.5 (1200)

18.125 (460)

33.5 (850)

2" 14.625(372)

Pressure Shell Design Conditions

PMA ANSI 150 230 psig/-20° to 100°F 15.8 barg/-29 to 37.8°CMax. allowable pressure ANSI 300 600 psig/-20° to 100°F 41.4 barg/-29 to 37.8°C

TMA ANSI 150 800°F/0 to 80 psig 426.7°C/0 to 5.5 barg Max. allowable temperature ANSI 300 800°F/0 to 330 psig 426.7° C/0 to 22.8 barg

Operating Range

A BSteam

saturationcurve

797752

572

392

212

320 145 290 435 600 725

Tem

per

atu

re °

F

g

*PMO Maximum operating pressure for saturated steamA - A Flanged ANSI Class 150B - B Flanged ANSI Class 300

TI-7-003-C 06.07

Spirax Sarco Canada Ltd., 383 Applewood Cres., Concord, ON L4K 4J3 Telephone: (800) 265-7747 FAX (905) 660-5503

Pipe

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Auxi

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Spirax Sarco Canada Ltd., 383 Applewood Cres., Concord, ON L4K 4J3 Telephone: (800) 265-7747 FAX (905) 660-5503TI-7-003-C 06.07

©

Stainless Steel SeparatorSC4-SS

20 40

Ste

am f

low

rat

e lb

/h

60 80100120 150 180 200 250 300 350 20 50 110 120

A

A

D

B

C

22,000

11,000

4,400

2,200

1,100

440

220

1104422

1-1/4"

3/4"

1/2"

Steam pressure psi (approx.) Flow velocity (ft/s)

Sep

arat

or S

ize

0.03

0.15

0.3

1

23

Pressure drop across separator psi (approx.)

1. Taking a steam pressure of 180 psig and flowrate of 1100 lb/h draw line A-A.

2. Draw horizontal line A-B.3. Any separator curve that is bisected by line A-B

within the shaded area will operate at near100% efficiency.

4. Line velocity for any size can be determined bydropping a vertical line B-C (eg. 60 ft/s for 1-1/4" unit).

5. Pressure drop is determined by plotting lines C-D and A-D. The point of intersection is the pres-sure drop across the separator, ie: 0.5 psi.

6. Separators should be selected on the basis of thebest compromise between line size, velocity andpressure drop for each application.

The shaded area denotes recommended selection for better than 99% separation efficiency.

SIZING EXAMPLE

STEAM SIZING CHART

80 90100

10,000

4,000

2,000

1,000

400

200

100

40

20

10

Air pressure psi (approx.) Flow velocity (ft/s)

0.07

0.03

0.15

0.3

1

2

Pressure drop across separator psi (approx.)

SEPARATOR FLOW VELOCITY &PRESSURE DROP FOR COMPRESSEED AIR

Flow SCFM Separator size

6"

4"

2-1/2"2"

1-1/2"1-1/4"

3/4"

1/2"

3"

1"

20 40 80 100 150 200 250 300 10 20 30 40 60

6"

4"

2-1/2"

2"

1-1/2"

1"

3"

350

Note: Any Separator curve that is bisected within theshaded area will operate at near 100% efficiency.

SAMPLE SPECIFICATIONMoisture Separator shall be of the high efficiency internalbaffle type having a pressure drop that does not exceed anequivalent length of pipe. Body shall be stainless steel withANSI 300 flanged connections. A screwed bottom drainshall be provided for the installation of a trap to dischargeany accumulated liquid.