Crall Products Home

‘718S’ Series Filter Vessels

Crall ‘718 S’ series vessels are designed to use 7” x 18” filter cartridges. These vessels are capable of providing flow rates to 1800 gpm.

All ‘718 S’ series vessels are designed in accordance with the ASME Boiler and Pressure Vessel Code, Section VIII, Division 1; with the ‘U’ stamp optional. All ‘718 S’ series vessels feature inlet and outlet inline for ease of installation in existing lines.


Design: ASME Section VIII, Div. 1
Design Pressure: 150 psig – 1440 psig
Design Temperature: Up to 450 degrees F
Materials of Construction
   Vessel: Carbon Steel
   Internals: 304 Stainless Steel
   O-Ring: Buna ‘N’
Inlet & Outlet: 150# RF Flange
Exterior Finish: Sand blast & shop enamel
Cover Lift: Mechanical 20” through 28”, Hydraulic 36” and larger


Materials of Construction
   Vessel: 304 or 316 ss (wetted parts only)
   Internals: 316 Stainless, Brass
   O-Ring: Viton*, Teflon* encapsulated silicone, neoprene, others on special request
Exterior Finish: Special coatings on request
Interior Finish: Coal tar epoxy
Pressure Gauges: Direct reading differential
Inlet & Outlet: FNPT connections
High Pressure Ratings: Higher pressure ratings are available upon request.

The ‘718 S’ series vessels will accommodate a wide variety of 7” x 18” and 736 cartridges.

*A trademark of E.I. Dupont de Nemoures Co.
PSE Series filter vessel Download specification sheet PDF.