Paul Hoover, Owner/Winemaker
Still Waters Vineyards

Winery Equipment Testimonial:

"Upgrading your winery from 1000 cases per year to 3000 to 5000 can be a daunting task. The choices in winery equipment, capacity and price vary all over the place.  The great thing about Ryan is, having been a wine maker for years, he knows how to design things from start to finish. When I harvested my first ten tons of the year at 6:30 a.m., Ryan and his staff were there making sure everything was working correctly. I knew I had made a good decision."

Filter Pads

Filtration Guide
Turbity Level Micron Level
< 100 10 +
< 60 5 - 7
1 - 10 2 - 3
1.0 - 3.0 2.0
1.0 - 2.0 1.0
< 1 NTU .45
< 1 .45-
 
Flow rate determination of Pad Filter
Pads: 40 x 40 cm = 1.5 square feet of filtering surface area per pad.
Determine volume of wine and time to filter tank.
 
Polish pads
Maximum flow rate of (30) gallons per hour per pad (=20 gph per sq ft)
 
Example:
3,000 gallons to be polish filtered in (4) hours = 750 gals per hour
750 gals/hr / 30 gph/pad = 25 pads needed for the filter
Polish pads are plugged when differential pressure is (30) psig.
 
Polish Pad Filtration Equation:
(Total Gallons to be filtered / hours to filter tk) / (30) = no of Pads
 
Sterile pads
Maximum flow rate of (15) gallons per hour per pad (=10 gph per sq ft)
Example:
1,000 gallons to be sterile filtered in (4) hours = 250 gallons per hour
250 gals/hour / (15) gals/hr/pad = 16.7 pad or 17 pads needed for the filter
 
NOTE: STERILE PAD DIFFERNTIAL PRESSURE TO BE LESS THAN (15) PSI OR FILTRATION IS NOT STERILE.
 
Sterile Pad Filtration Equation:

(Total Gallons to be filtered / hours to filter tk) / (15) = no of Pads

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