Datasheet summary
Technical Manual 8\" Side Port
Engineering summary from PDF text extraction for Technical Manual 8\" Side Port. Verify every value with the OEM datasheet.
Summary
Product Identification
BEL pressure vessels are designed as housings for 4'', 8'', 9'', and 16'' spiral-wound Reverse Osmosis (RO), Nanofiltration (NF), and Ultrafiltration (UF) membrane elements. These vessels are manufactured from filament wound fiber reinforced plastic (FRP) using a superior epoxy resin, ensuring high physical strength and an ultra-smooth inside surface.
BEL, founded in 1966, specializes in composite materials. The company's products are tested according to ASME code section X, and BEL holds ISO 9001 quality systems certification.
This technical manual specifically details 8'' Side Port pressure vessels available in various configurations depending on required operating pressures.
Operating Limits
- Intended Use: Designed for water treatment only.
- Design Pressure: Vessels are tested at 110% of their design pressure. Long-term operation above the design pressure must be prevented as it voids the warranty and may lead to explosive head failure.
- Models are available for 300 PSI, 450 PSI, 600 PSI, 1000/1200 PSI, and 1500 PSI nominal operating pressures.
- Permeate Port Pressure: Must not exceed 125 psi.
- Operating Temperature: Should not be continuously operated at temperatures above 120° (49°C).
Mechanical / Hydraulic
BEL pressure vessels are not designed to be used as structural supports. Piping manifolds and other fittings should have their own properly designed system framework.
Installation Notes:
- Adequate room is required for servicing at both ends of the vessel.
- Vessels must be installed horizontally on support saddles.
- Mounting designs must allow for both radial and axial expansion: up to 0.5 mm radial and up to 2-3 mm axial. Restriction can damage the vessel.
- Straps should hold the vessel onto support pads without restricting expansion.
- Flexible piping connections are required to prevent unwanted load transfer and to permit decoupling of headers from the vessel. A U-bend pipe with flexible connections at each end is recommended for the permeate port.
- Flexible connectors (e.g., Victaulic or equivalent) are recommended for connecting the piping system to allow relative movement.
| Side Port Diameter | Max Angle [Deg] | Max Offset* [mm] | Spacing [mm]- X |
|---|---|---|---|
| 1.5" | 2.5 | 3 | 2 + 0.5 |
| 2" | 2 | 3 | 2 + 0.5 |
| 2.5" | 2 | 3 | 3 - 0.5 |
| 3" | 1.5 | 3 | 3 - 0.5 |
| 4" | 1.5 | 3 | 3 ± 0.5 |
Component Materials (Common across models, unless noted):
- Body of Pressure Vessel: Glass/Epoxy, acc. F.I.227.
- End Cap: Engineering plastic.
- Adapter: Engineering plastic (various sizes like 1.125", 1.5", also blind adapters).
- O-Ring & Seals: EPDM for main O-rings, adapter seals, membrane seals, and side port seals.
- Membrane Seal: EPDM.
- Support Ring:
- 300 PSI: Engineering plastic.
- 450 PSI, 600 PSI: Aluminum.
- 1000/1200 PSI, 1500 PSI: Aluminum.
- Retaining Ring (finger hook): Stainless steel.
- Side Port (1.5'', 2'', 2.5'', 3'', 4'' diameters):
- Up to 600 PSI: Stainless steel.
- 1000/1200 PSI, 1500 PSI: Super duplex Stainless steel.
- Retaining Ring (for side port): Stainless steel.
- Disk for Side Port: Metal plate.
- Saddle: Engineering plastic.
- Strap Assembly: Stainless steel.
- Disk Spacers (1mm, 3mm): Engineering plastic.
- Metal Cap:
- Not listed for 300 PSI models.
- 450 PSI, 600 PSI, 1000/1200 PSI, 1500 PSI: Stainless Steel.
Specific part numbers and quantities vary by pressure vessel model and are detailed in the official PDF.
Maintenance
The manual provides detailed procedures for:
- Head Disassembly: Includes pressure relief, pipe disconnection, and removal of retaining rings and locker segments using specialized puller tools.
- Visual Inspection: Guidance for inspecting vessel heads and fittings for corrosion, salt concentrations, and scratches. Cleaning procedures involve wire brushes, soapy water, Scotch-Brite pads, and compressed air. Scratches on the inner vessel surface (up to 20 cm deep) should be carefully ground smooth with sand paper.
- Head Reassembly: Steps for inserting O-rings, applying lubricant (Molykote 111 or Glycerin), and using pusher tools to seat the end cap and secure retaining rings.
- Membrane Element Loading: Procedures include flushing the vessel, inspecting membrane elements, lubricating the vessel bore, installing brine seals, loading elements with interconnectors, and calculating/inserting shimming spacers to prevent impact damage.
It is highly recommended to replace all seals each time the head is reassembled. Seal replacement kits are available from BEL Customer Service. Annexes provide detailed instructions for using BEL Puller/Pusher tools, shimming calculations, and O-ring replacement/scratch treatment procedures.
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, up-to-date information, please refer to the official PDF revision used on your project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.