Bekaert SL8040Xf

Summary

Product Identification

The BEKAERT Model SL8040Xf Pressure Vessel is designed for continuous use as a housing for membrane filtration elements. It is intended to purify typical brackish waters at pressures up to 250 PSI.

The vessel accommodates any make of eight-inch nominal diameter spiral-wound elements, as well as many hollow fibre elements. Element interface hardware for the specified element is supplied with the vessel.

The model number breakdown for SL8040Xf signifies:

• SL: Model of the Vessel (Side-ported)
• 80: Diameter of the membrane (8 inches)
• 40: Length of the membrane (40 inches)
• X: Number of membranes
• f: Pressure identification (250 PSI)

The SL8040Xf has been designed to meet the standards of the American Society of Mechanical Engineers (ASME), Boiler and Pressure Vessel Code, Section X. ASME Code stamped vessels are available at an additional cost.

Operating Limits

• Design Pressure at 120 °F (50°C): 18 BAR (250 PSI)
• Factory Test Pressure: 375 PSI
• Burst Pressure: 1500 PSI
• Minimum Operating Temperature: 20°F (-7°C)
• Maximum Operating Temperature: 120°F (50°C) (less than 30 minutes for cleaning)
• Operating pH Range: 3-11
• Cleaning pH Range: 2-12 (for less than 30 minutes)
• Maximum Permeate Port Pressure: 8.5 bar (125 psi) (pressures in excess require factory approval)
• Operating Conditions: Must be operated only in positive pressure applications; not designed for vacuum conditions.

Feed Water

• Application: Typical brackish waters
• Feedwater TDS: ≤10000 ppm MAX

Mechanical / Hydraulic

General Specifications:

• Standard Membrane Length: 40 inches
• Standard Membrane Diameter: 8 inches
• Vessel Expansion Under Pressure:
  • ∆DIA = 0.012 in (0.3 mm)
  • ∆L = 0.15 in (4 mm) for a length code 8 vessel
• Connections: Use flexible type groove-end pipe couplings, such as Victaulic™ style 77 or equal fittings, with a 3.175 mm gap at each port/manifold connection to maximize flexibility.

Dimensions (in mm, unless otherwise noted): The vessel length (L) and membrane length (MEM) vary based on the number of membranes (1 to 8). The diagram indicates L = 458 + (1016 * N), where N is the number of membranes.

• Vessel Outside Diameter (D): 213 mm
• Vessel Outside Diameter (D'): 245 mm
• Feed Port Diameter: ∅ 47.65 (1.5" Victaulic)
• Permeate Port Diameter: ∅ 47 (1" NPT)
• Other Fixed Dimensions: A ± 1 = 58.3 mm, B = 164 mm, C = 213 mm, D = 213 mm, D' = 245 mm, E = 107.7 mm, F = 164 mm, H = 1016*N mm.
• Length for various numbers of membranes (X):
  • SL80401f: L = 1474, MEM = 1143
  • SL80402f: L = 2490, MEM = 2159
  • SL80403f: L = 3506, MEM = 3175
  • SL80404f: L = 4522, MEM = 4191
  • SL80405f: L = 5538, MEM = 5207
  • SL80406f: L = 6554, MEM = 6223
  • SL80407f: L = 7570, MEM = 7239
  • SL80408f: L = 8586, MEM = 8255

Materials of Construction:

• Shell: Glass fibre - epoxy resin, hot cured (Roving-Epoxy)
• Head:
  • Bearing Plate: Hard Anodized Al 6061 T6 or 6082 T6
  • Feed Port: Stainless Steel SA-790 Designation UNS: S32750
  • Outlet Pipe Cap: Stainless Steel S32750
  • Sealing Plate: PVC (grey)
  • Outlet Adapter: PVC
  • Securing Ring: Epoxy-Glass
• Seals:
  • Head Seal: EPDM (square)
  • O-Ring 36, O-Ring 49, O-Ring (square): EPDM
• Other Components:
  • Seeger Ring: Stainless Steel
  • Locking Ring Set: Stainless Steel 316L
  • Securing Screw: Stainless Steel DIN 912 M8 x 20
  • Thrust Ring: Nylon
  • Saddle: Polyurethane
  • Strap: Stainless Steel 304
  • Membrane Adapter: PET
  • Outlet Pipe Cap Nut: Stainless Steel S32750

Important Precautions:

• The vessel's filament-wound reinforced plastic shell must be allowed to expand under pressure. Avoid undue restraint at support points or piping connections.
• End closures must be kept dry and free of corrosion.
• Install using furnished hardware, mounting straps "just snug" at recommended spans.
• Provide overpressure protection, setting safety devices at no more than 105% design pressure.
• Inspect end closures regularly.
• Relieve system pressure before working on the vessel.
• Never support other components with the vessel.
• Do not overtighten the permeate port connection (no more than one turn past hand tight).
• Ensure the Thrust Ring is installed downstream.
• Flush the vessel before system shutdown, especially with certain feed waters, using non-corrosive permeate.

Disclaimer

This summary is based on the provided text extract and may not include all figures, footnotes, or the latest revisions from the official OEM PDF datasheet. For contractual data, always refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

PDF datasheet