LEAKPROOF Duplex Basket Strainers
Two basket chambers with a changeover valve arrangement, so one basket can be cleaned while the other stays in service and the line keeps running.
Where shutting a line is not an option, such as fuel supply to burners and turbines, lube oil or product loading, the LEAKPROOF duplex strainer (LP-39 series) keeps the line running. The operator switches flow to the standby chamber, then drains and cleans the dirty basket.
We build cast-body units for standard sizes and fabricated twin-vessel assemblies with ball, plug or butterfly changeover valves for larger lines and special materials.
- Uninterrupted flow during basket cleaning
- Cast body or fabricated twin-chamber design
- Changeover by integral or external valves
- Vent and drain on each chamber
- Perforated basket with replaceable mesh liner
- Internal coatings and liners available
Typical Oil & Gas Services
Design & Construction
| Design | ASME based; flanges to ASME B16.5 |
|---|---|
| Standard design | 150 psig at 150 °F (10.3 bar at 65.6 °C); other ratings to order |
| Body | Cast steel, SS304 / SS316; fabricated CS and alloys |
| Changeover | Integral plug / ball valves or external valve manifold |
| Basket | Perforated stainless with mesh liner to specification |
| Testing | Hydrostatic test on every unit; NDT to specification |
Documents Supplied
- Material test certificates to EN 10204 3.1
- Positive material identification (PMI) on alloy parts
- Hydrostatic test certificate (pressure-retaining items)
- Dimensional and visual inspection report
- NDT reports when specified: RT, UT, PT, MT
- Inspection & test plan (ITP) for client witness points
- Painting / surface preparation report and nameplate data
- JKKP documentation for pressure vessels and tanks
Documentation is prepared to your purchase order and ITP. Third-party inspection welcome.
Dimensions
Cast duplex basket strainer, typical dimensions (mm). Certified drawings are issued with every order.
| Size | L | L1 | L2 | H | H1 | D3 | H3 |
|---|---|---|---|---|---|---|---|
| 2" | 272 | 420 | 255 | 550 | 280 | 95 | 200 |
| 3" | 315 | 470 | 305 | 640 | 255 | 95 | 200 |
| 4" | 400 | 520 | 350 | 880 | 370 | 107 | 350 |
| 6" | 500 | 750 | 480 | 1060 | 430 | 164 | 400 |
| 8" | 670 | 1030 | 610 | 1350 | 633 | 225 | 600 |
| 10" | 950 | 1250 | 970 | 1400 | 589 | 280 | 600 |
| 12" | 1010 | 1480 | 1480 | 1785 | 700 | 320 | 765 |
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Call +607 598 5796 / 5797 · [email protected]