Multi - Round Series

Summary

Product identification

Pentair Multi-Round Bag Housings are designed to effectively remove dirt, pipe scale, and other substances from process liquids. They are intended to ensure clean effluent and protect downstream equipment. Unfiltered liquid enters the housing above the filter bags or strainer baskets, fills the interior, and passes through the bag or basket, trapping solids inside.

Operating limits

• Pressure Rating:
  • 150 psi @ 300˚F (10.3 bar @ 148.9˚C)
  • Up to 300 psi (20.7 bar) optional
• Flow Rates: Up to 3,500 gpm (13,247.5 Lpm)
• Basket Quantity: 2 basket to 24 basket housing designs available.

Applications

• Chemical
• General Industrial
• Oil and Gas
• Water

Mechanical / hydraulic

• Construction:
  • Carbon Steel with 2-part epoxy finish inside and outside
  • 304 Stainless Steel or 316 Stainless Steel with satin finish on outside
• Connections: 2”, 3”, 4”, 6”, 8”, 10”, or 12” RF flange
• Housing Lid: Zinc-plated swing bolts with bearing-assisted davit cover lift
• Lid Seal: Buna-N
• Pressure Ports: Two differential ports, 1/4” NPT, for measuring pressure across filter bag
• Basket Material:
  • 304 Stainless Steel strainer basket with 9/64” perforations (for 304 Stainless Steel and Carbon Steel housings)
  • 316 Stainless Steel strainer basket with 9/64” perforations (for 316 Stainless Steel housings)
• Bag Sizes Accepted: #2-size bag filters
• Base: Heavy-duty support legs

Features/Benefits

• Flow rates up to 3,500 gpm (13,247.5 Lpm)
• 150 and 300 PSI (10.3 and 20.7 bar) ratings
• 2 basket to 24 basket housing designs
• Carbon Steel or Stainless Steel construction
• Each housing is factory hydro-tested
• Low pressure drop
• Zinc-plated swing bolts with bearing-assisted davit closure
• Buna-N seals — lid and basket
• Differential, drain, and vent ports
• Accepts #2-size bag filters

Options

• Mesh-lined strainer baskets
• Alternative O-ring materials
• Hydraulic lid lift
• Positive hold down spring
• Higher pressure ratings (up to 300 psi / 20.7 bar)
• 304 Stainless Steel strainer basket for 304 Stainless Steel housings and Carbon Steel housings
• 316 Stainless Steel strainer basket for 316 Stainless Steel housings
• Two-part epoxy finish on carbon steel housings, inside and outside
• Heavy-duty support legs

Nominal Flow Rates

• LR2: 400 GPM (1,514 LPM)
• LR3: 600 GPM (2,271 LPM)
• LR4: 800 GPM (3,028 LPM)
• LR6: 1,200 GPM (4,542 LPM)
• LR8: 1,600 GPM (6,056 LPM)
• LR12: 2,100 GPM (7,949 LPM)
• LR17: 3,500 GPM (13,248 LPM)
• LR24: 4,300 GPM (16,276 LPM)

Dimensions and Weight

Detailed approximate dimensions (A, B, C, D, E, F, G, H) and weights in both imperial (IN, LBS) and metric (MM, KG) units are provided for each housing model (LR2 to LR24) across various connection sizes. See the official PDF for exact tabulated values.

Pressure Drop vs. Flow Rate

A chart illustrates the typical differential pressure (psi/Bar) versus flow rate (gpm/Lpm) for different connection sizes (2" to 12"). Pressure drop increases with flow rate and is generally lower for larger connection sizes at the same flow rate. See the official PDF for exact charted values.

Ordering Information

Part numbers can be configured using the following scheme (example: LR2302FAC15):

• HOUSING: LR2, LR3, LR4, LR6, LR8, LR12, LR17, LR24
• BASKET (IN.): 30 (#2 bag)
• CONNECTION (IN.): Refer to Dimension Charts
• CONNECTION TYPE: F (Flange)
• OUTLET LOCATION: A (Bottom)
• MATERIAL: C (Carbon Steel), 4 (304 SS), 4L (304L SS), 6 (316 SS), 6L (316L SS)
  • Note: Carbon steel is not recommended for water use as the epoxy coating is not designed as a corrosion inhibitor.
• PSI: 15 (150 psi), 30 (300 psi)
• ASME CODE: U (U Stamp), Blank (No Stamp)

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror