OVT Series0 pages

Solids Handling Dry Prime Vacuum-Assisted with OVT
The ground breaking Thompson Pump OVT (oil-less vacuum technology) Priming System offers
multiple improvements to traditional vacuum priming systems. While both allow a basic pump to prime
automatically, the OVT does so more efficiently with less maintenance and faster priming. Maintenance
and operating expenses are less because the system is dry running – no recirculating oil is needed– a
much improved eco-friendly alternative. In addition, non-contacting rotors eliminate wear which
increases longevity and offers no decrease in performance over time. The Thompson OVT has extremely
high vacuum even at lower speeds and is tolerant to accidental liquid carryover unlike others.

18JSVK

Priming System Benefits:
• ry Running – No sealing or lubricating oil is
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needed in the vacuum compression chamber
• ltra Low Maintenance – Unit only requires
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servicing at 20,000 hour intervals
• xtremely High Air Handling – Faster priming
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times - 97cfm
• igh Vacuum Capability – Deeper suction
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lifts - 28.4 inches Hg
• fficiency – Low horsepower for high cfm
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• ongevity – Low Life Cycle Cost – Non contacting
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rotors eliminate internal wear
• ir Cooling – No water levels to check and no oil
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system to maintain
• Rugged – Tolerable to solids, liquids and dust
• eliability – No decrease in performance
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over time
• erformance – Maintains vacuum at
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lower speeds
• ersatility – Can be used on a variety of applications
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such as sewer bypasses and wellpoint dewatering

• Economical – Operating costs are low because

of the maintenance free design and the reduced
energy requirement - made possible by the
high volumetric efficiency along with a zero
friction chamber
• Eco-friendly – No sealing or lubricating oil provides

for no oil pollution or smoke
• Guaranteed performance
• Easily added to any Thompson centrifugal pump