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PISTA - Grit Chamber
High removal efficiencies originate from the PISTA 360 Grit Chamber’s unparalleled hydraulic design, including its flat chamber floor, patented and engineered V-FORCE BAFFLE and low-energy axial-flow propeller. The combination creates a true vortex that effectively separates grit from organics and the waste stream. Forced vortex action distinguishes the PISTA Grit Chamber from all other so-called “vortex” grit chambers because it does not rely on less efficient particle settling or gravity.
PISTA offers flexible application whether from domestic sewage in a municipal headworks or industrial process streams in a commercial production facility. The grit chamber can be installed above-grade or below ground with concrete, carbon steel, or stainless steel tankage. Individual units can handle waste streams less than 0.5 MGD all the way to 100 MGD. In large treatment works, multiple units arrange to efficiently remove grit from hundreds of millions of gallons of flow a day.
- Unit Capacities: 0.5 mgd – 100 mgd (1,892 cmd – 378,500 cmd)
- Arrangements: 360° with V-FORCE BAFFLE; 360°, & 270°
- Chamber Construction: Concrete or steel*
- Max. Head Loss**: 1/4" (6.35 mm) 270°& 360° without Baffles
- Pump Sizes: 4” (≈ 10 cm) & 6” (≈ 15 cm)
- Pump Arrangements: Top-mounted & remote-mounted
* Available up to 7 MGD
**consult S&L when using PISTA 360 V-FORCE BAFFLE
- Unparalleled grit removal efficiency, including 95% down to 140 mesh particle size on PISTA 360 with V-FORCE BAFFLE.
- New PISTA 360 with patented V-FORCE BAFFLE increases velocity during low-flow periods
- New V-FORCE BAFFLE also eliminates need for downstream level control
- Low overall installation, construction, operation, and maintenance costs
- Low energy use
- No underwater wearing parts
- No routine maintenance required on submerged elements
- Wide range of daily flow variations without performance loss
- Single-source supply and warranty by Smith & Loveless
- Available in concrete, factory-built standard steel, and field-erected steel configurations