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Thompson - Model 4JSVM -4 Inch Vacuum-Assisted Solids Handling Pump
With its heavy-duty cast-iron construction and fast priming capabilities, the Thompson 4JSVM solids handling end suction centrifugal pump leads the industry in construction, industrial and municipal applications. The Thompson 4JSVM is designed for moderate flows up to 1,350 gpm and heads up to 135 feet making it perfect for sewage bypass pumping or general construction dewatering.
Pump Casing
Heavy-duty class 30 cast-iron
Impeller
Dynamically balanced, non-clogging,enclosed, 65-45-12 ductile iron with rear-equalizingvanes to reduce axial loading and prolong seal andbearing life; diameter 8.25”.
Mechanical Seal
Dry-running, grease or oil lubricatedwith Tungsten Carbide rotating and Silicon Carbidestationary seal faces. Single inside mounted, non-pusher type with self-adjusting elastomeric bellows.Other components are 304 stainless steel and Viton.
Head
Rugged, back pull out design, heavy-duty class30 cast iron with tapered bore design.
Bearings
Heavy-duty grease lubricated to carry bothaxial and radial loads.
Bearing Frame
Heavy-duty class 30 cast iron.
Shaft
High quality stress-proof steel.