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Viking is the World Leader in Manufacturing Positive Displacement Pumps and Pump Accessories
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Universal Seal Series Internal Gear Pumps
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Design Features
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The Universal Seal series pumps are similar to the Heavy Duty series, offering
thrust control and adjustable rotor clearances to compensate for wear and
viscosity.
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An enlarged bearing housing at the rear of the pump provides easy drive-end
access, and accepts various sealing options including:
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• packing
• component mechanical seals
• cartridge single-mechanical seals
• cartridge double-mechanical seals, and
• cartridge triple-lip seals.
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Optional Behind-the-Rotor Seal (HL, K, KK, L, LQ & LL
sizes in cast iron only)
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This allows drive-end access for maintenance or replacement of cartridge seals
without opening the head and pulling the rotor/shaft. Some sizes also offer
behind-the-rotor component mechanical seals.
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Ports are available in a variety of 90- and 180-degree configurations. Integral pressure relief valves are standard. Universal Seal pumps are also
available in Jacketed versions.
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Materials of Construction Options
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• Cast Iron
• Ductile Iron
• Steel Externals
• Stainless Steel
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Jacketed and Fully-Jacketed Universal Seal Series
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Standard-jacketed pump with jacketing on bracket and head.
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Fully-Jacketed pump with jacketed bracket, casing, flanges and head.
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Additional Design Features of the Jacketed Universal Seal Pumps:
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The Jacketed Universal Seal series pumps provide the same features as standard Universal Seal pumps, except they offer
jacketing through which saturated steam or heat transfer oil can be circulated to control the temperature within the pump.
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Standard-jacketed pumps are typically used for "melting" ambient temperature solids, like asphalt, within the pump prior to
startup. These pumps feature a jacketed bracket and head.
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Fully-Jacketed pumps are used in those same applications, plus applications where superior temperature control and faster
startup is critical, such as pumping ABS, epoxy and PET resins. These pumps feature jacketed flanges and casing, along with
jacketed bracket and head.
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Fully Jacketed Pump Materials of Construction Options
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• Cast Iron (N size only)
• Ductile Iron (N size only)
• Steel Externals
• Stainless Steel
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