PISTA® 360? with V-FORCE BAFFLE?0 pages

PISTA® 360™
with V-FORCE

BAFFLE™

95% Grit Removal Efficiency
Down to 140 Mesh (105 Microns)
Particle Size

The V-Force Baffle™ directs the flow out of the
PISTA® Grit Chamber and acts as a “slice weir”, controlling
the water level in the main chamber and the inlet channel.
No additional downstream flow control device is required to
keep the velocity between 3.5 fps (1.06 m/s) at peak flow and
1.6 fps (0.48 m/s) at minimum flow with a 10:1 turn down.
This most recent innovation further enhances the world’s
best grit removal scheme by providing engineering and
cost saving considerations. By increasing chamber velocity
during low flow periods, less grit is permitted to settle in
upstream channels. The V-Force Baffle™ also extends
the grit extraction path within the vortex grit chamber. This
is a key feature because a longer grit path within the flow
pattern dramatically increases the effectiveness of grit being
captured on the chamber’s flat-floor.
Beyond this, the PISTA® 360™ with V-Force Baffle™
also permits design flexibility so that water elevations can
be controlled. Water level control is important because

it maintains the correct velocities approaching the grit
chamber. Previously, the most common way to accomplish
water level control in the chamber was to back up the flow
with a downstream submerged weir. The PISTA® 360™ with
V-Force Baffle™ has preset inlet and outlet openings
that supplant the need for the submerged weir. With all of
these improvements, the PISTA® 360™ with V-Force
Baffle™ achieves 95% grit removal efficiency down to
140 mesh (105 microns).
By integrating water elevation settings with the V-Force
Baffle™, the overall outlet footprint requirements decrease
by as much as half the typical distance. The resulting smaller
footprint provides significant construction cost savings. The
PISTA® 360™ with V-Force Baffle™ represents the
latest innovation that makes cents from Smith & Loveless.

The PISTA® 360™ with V-Force Baffle™ is just one of many
Smith & Loveless design innovations that make PISTA® the world’s
leading grit removal system.

O n l i n e : s m i t h a n d l o v e l e s s .com • Phone: 913.888.5201 • Fax: 913.888.2173

Bulletin 960 © Smith & Loveless Inc., 2012

The PISTA® 360™ Grit Chamber is equipped with the
patented V-Force Baffle™, which is an integral flow
control baffle for both the inlet and outlet of the main chamber.
The V-Force Baffle™ directs the inlet flow into the
chamber in a manner that ensures the proper vortex flow and
prevents short-circuiting. The V-Force Baffle™ allows
for a full 360° rotation from the inlet to the outlet, providing
maximum flow travel for effective grit removal.