Technical Manual 8\" End Port

Summary

Product Identification

BEL pressure vessels are manufactured from filament wound fiber reinforced plastic (FRP) with a superior epoxy resin, wound over precision mandrels. They are designed to be used as housings for 8-inch spiral-wound Reverse Osmosis (RO), Nanofiltration (NF), and Ultrafiltration (UF) membrane elements. The vessels are available in different configurations based on required operating pressures, filtration type, and piping layout.

The company holds ISO 9001 quality systems certification and tests vessels according to ASME code section X.

Operating Limits

• Permeate port pressure: Must not exceed 125 psi.
• Continuous operating temperature: Not above 120° (49°C).
• Design Pressure (various models available): 300 psi, 450 psi, 600 psi, 1000 psi, 1200 psi, and 1500 psi. Long-term operation above the design pressure must be prevented.

Mechanical / Hydraulic

• Permeate Port connection: 1.5" (End Port).
• Materials of Construction (Body): Glass/Epoxy.
• End Port Material:
  • Stainless steel for 300 psi, 450 psi, 600 psi models.
  • Super duplex stainless steel for 1000 psi, 1200 psi, 1500 psi models.
• Support Ring Material:
  • Engineering plastic for 300 psi models.
  • Aluminum for 450 psi, 600 psi, 1000 psi, 1200 psi models.
  • Stainless steel for 1500 psi models.
• Seals: EPDM for End Port, P. Port, and Membrane seals.
• Installation Requirements:
  • Adequate room for serving at both ends of the vessel.
  • Horizontal installation on support saddles.
  • Mounting design must allow for both radial (up to 0.5 mm) and axial (up to 2-3 mm) expansion.
  • Flexible piping connections should be provided to prevent loads transfer. Recommended permeate port connection is a U-bend pipe with flexible connections.
  • Maximum Angle: 2.5 Deg
  • Maximum Offset: 3 mm
  • Spacing (X) for 1.5" End Port: 2 + 0.5 mm

Component List

The manual provides detailed component lists for 8" End Port pressure vessels across various pressure ratings (300 psi, 450 psi, 600 psi, 1000 psi, 1200 psi, 1500 psi), including both CODE and NON CODE assemblies. Components generally include:

• Body of Pressure Vessel
• End Port 1.5''
• Retaining rings
• Seals (EPDM, Engineering plastic)
• Support ring
• Base Plate (Aluminum)
• Sealing plate
• Permeate Port
• Adapter (1.125" and 1.5" options, including blind)
• Thrust ring
• Membrane seal
• Saddles and Strap Assemblies (Stainless steel)
• Disk spacers (1mm and 3mm)

See the official PDF for exact tabulated values including part numbers and specific material grades.

Maintenance

The manual details procedures for:

• Head disassembly and reassembly.
• Visual inspection for corrosion, salt concentrations, and scratches on internal surfaces.
• Permeate port disassembly and reassembly.
• Loading of membrane elements, including use of a thrust ring, lubrication (Molykote 111 or equivalent, Glycerin), and proper shimming.
• Recommendations include replacing all seals each time the head is reassembled and using specialized BEL tools (Puller and Pusher) for head installation/extraction. A shimming procedure is provided to avoid impact damage.

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Disclaimer: This summary is based on the provided text extract and may not include all figures, footnotes, or the latest revisions from the original OEM PDF. For contractual data and complete specifications, the official OEM PDF revision used on the project must be consulted.

Official datasheet (PDF)

PDF datasheet