Maximum Operating Pressure

• Carbon Steel: 150 psig (10.3 bar) @ 500 °F (260 °C)
• Stainless Steel: 150 psig (10.3 bar) @ 200 °F (93 °C)

NOTE: Maximum operating pressure ratings are vessel ratings only. Safe operating temperature and pressure will depend on filter cartridge and gasket/O-ring used. For inquiries on compatibility, contact the factory or your Pall distributor.

Code Construction

• Standard: ASME UM Stamp
• Optional: ASME U Stamp

Connections

• Inlet/Outlet: 2" NPT
• Drain: 1/2" NPT
• Vent: 1/4" NPT

Connection Option

• Inlet/Outlet: 150 lb., 2" slip-on flanges

Shell O-rings

• Buna N (standard), Silicone Elastomer, Neoprene, Viton¹ A, Ethylene Propylene

Internal Components

316 stainless steel top seat plate assemblies and tube guides are standard with internal parts option. Accu-Seal and Uni-Seal are optional.

Reverse Flow Option

• Housings can be modified for reverse flow applications

Dimensional Data

Stainless Steel	A (in.)	Flow Rate (gpm)2
6MSO1	29 (73.7 cm)	30 (114 lpm)
12MSO2	39 (99.1 cm)	60 (227 lpm)
18MSO3	50 (127 cm)	90 (341 lpm)
24MSO4	60 (152 cm)	120 (454 lpm)

Carbon Steel	A (in.)	Flow Rate (gpm)2
6MSO1	24 (61 cm)	30 (114 lpm)
12MSO2	34 (86.4 cm)	60 (227 lpm)
18MSO3	45 (114.3 cm)	90 (341 lpm)
24MSO4	55 (139.7 cm)	120 (454 lpm)

Data presented in this section represents typical dimensions for MSO housings. For critical requirements, request a certified drawing.

¹Registered trademark of DuPont Dow
²2 Flow rates listed are for depth cartridges. Consult factory for more specific information.

Housings, Vessels, or Assemblies

This information is a guide to the part number structure and possible options. For availability of specific options and housing details, please contact Pall.

Example Part Number: 12 MSO 2- 304  2 F C150  UM- IP - RV (See bold references in tables below)

Part Number: < Equivalent Code from Table 1 > MSO < Deck Code from Table 2 >- < Materials Code from Table 3 > 2 < Connection Code from Table 4 > C150 < Stamp Code from Table 5 > - < Reverse Flow Code from Table 7 >

Table 1 - No. of 10 in. Equivalents

Code	No. of 10 in. Equivalents
6	6
12	12
18	18
24	24

Table 2 - No. of Decks

Code	No. of Decks
1	1
2	2
3	3
4	4

Table 3 - Materials of Construction

Code	Materials of Construction
Blank	Carbon Steel
304	304 Stainless Steel

Table 4 - Connection Styles

Code	Connection Styles
Blank	NPT
F	Flange

Table 5 - ASME Stamp Designation

Code	ASME Stamp Designation
UM	UM Stamp
U	U Stamp

Table 6 - Internal Parts³

Code	Internal Parts
Blank	No internal parts
IP	Internal parts

Table 7 - Reverse Flow Option

Code	Reverse Flow Option
Blank	Standard flow
RV	Reverse flow

³Standard vessels include internal parts of top seat plates and tube guides. Basic vessels without internal parts may be ordered as non-stock items.