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Up to 75% Efficiency
Gorman-Rupp Super-U Series® pumps are among the most efficient self-priming, solids handling pumps available on the market. Their unique hydraulic design and smooth wall volute casing minimize friction loss and drag. The multi-vane, open impeller is designed for high-efficiency operation yet can still handle limited solids. The pumps deliver high efficiencies (up to 75%) and perform efficiently across a broad operating range. Varying machine loads that cause pumps to operate right or left of their best efficiency point will affect operating efficiency by only a mynute percentage. These pumps offer the same reliability and performance as the U-Series with additional features.
Easy to Maintain
Super U Series pumps are designed with ease of service in mind. Because they are self-priming, they can be mounted above the liquid being pumped. Should service or maintenance be required, it can be easily performed using common hand tools without disconnecting piping. With no elongated shafts present, routine service can be performed in confined work spaces. All Super U Series pumps can be coupled to a standard NEMA motor, which means there’s no waiting for special motor parts.
Drive Variations
Gorman-Rupp Super U Series® pumps are available as basic units, ready for connection to power or flex-coupled or v-belt driven by an electric motor. When space is limited, flex-coupling often solves confined area issues. V-belt driven configurations offer the advantage of flexibility in speed selection and usually provides maximum operating speed for required head and capacity without needing to trim the impeller. Various belt and sheave options are available.
| Size | 3" (80 mm), 4" (100 mm), 6" (150 mm) |
| Max Capacity | 1500 GPM (95 lps) |
| Max Head | 207' (63 m) |
| Max Solids | 1-1/4" (32 mm) |
| Max Temperature | 160 F (71 C) |
| Materials of Construction | Cast Iron, CD4MCu, Stainless Steel |
| Item | Size | Casing | Impeller / Rotor | Drive | Flange | Seal | Suction | Discharge |
| U3A60S-B | 3 x 3 | Cast Iron | Ductile Iron | Basic | NPT | Silicon Carbide | 3 | 3 |
| U3A60S-B /F | 3 x 3 | Cast Iron | Ductile Iron | Basic | ANSI Spool | Silicon Carbide | 3 | 3 |
| U3B60S-B | 3 x 3 | Cast Iron | Ductile Iron | Basic | NPT | Silicon Carbide | 3 | 3 |
| U3B60S-B /F | 3 x 3 | Cast Iron | Ductile Iron | Basic | ANSI Spool | Silicon Carbide | 3 | 3 |
| U3B60S-B /FM | 3 x 3 | Cast Iron | Ductile Iron | Basic | DIN Spool | Silicon Carbide | 3 | 3 |
| U3B65S-B | 3 x 3 | CD4MCu | CD4MCu | Basic | NPT | Silicon Carbide | 3 | 3 |
| U3B65S-B /F | 3 x 3 | CD4MCu | CD4MCu | Basic | ANSI Spool | Silicon Carbide | 3 | 3 |
| U4A60S-B | 4 x 4 | Cast Iron | Ductile Iron | Basic | NPT | Silicon Carbide | 4 | 4 |
| U4A60S-B /F | 4 x 4 | Cast Iron | Ductile Iron | Basic | ANSI Spool | Silicon Carbide | 4 | 4 |
| U4B60S-B | 4 x 4 | Cast Iron | Ductile Iron | Basic | NPT | Silicon Carbide | 4 | 4 |
| U4B60S-B /F | 4 x 4 | Cast Iron | Ductile Iron | Basic | ANSI Spool | Silicon Carbide | 4 | 4 |
| U4B60S-B /FM | 4 x 4 | Cast Iron | Ductile Iron | Basic | DIN Spool | Silicon Carbide | 4 | 4 |
| U4B65S-B | 4 x 4 | CD4MCu | CD4MCu | Basic | NPT | Silicon Carbide | 4 | 4 |
| U4B65S-B /F | 4 x 4 | CD4MCu | CD4MCu | Basic | ANSI Spool | Silicon Carbide | 4 | 4 |
| U6A60S-B | 6 x 6 | Cast Iron | Ductile Iron | Basic | NPT | Silicon Carbide | 6 | 6 |
| U6A60S-B /F | 6 x 6 | Cast Iron | Ductile Iron | Basic | ANSI Spool | Silicon Carbide | 6 | 6 |
| U6B60S-B | 6 x 6 | Cast Iron | Ductile Iron | Basic | NPT | Silicon Carbide | 6 | 6 |
| U6B60S-B /F | 6 x 6 | Cast Iron | Ductile Iron | Basic | ANSI Spool | Silicon Carbide | 6 | 6 |
| U6B60S-B /FM | 6 x 6 | Cast Iron | Ductile Iron | Basic | DIN Spool | Silicon Carbide | 6 | 6 |
| U6B65S-B | 6 x 6 | CD4MCu | CD4MCu | Basic | NPT | Silicon Carbide | 6 | 6 |
| U6B65S-B /F | 6 x 6 | CD4MCu | CD4MCu | Basic | ANSI Spool | Silicon Carbide | 6 | 6 |
The external shimless cover plate allows for easy adjustment of the clearance between the impeller and the wearplate. This process eliminates the need to realign belts, couplings or other drive components. In turn, the working height of the seal assembly and impeller back clearance are not disturbed. The unique collar and adjusting screw allow for incremental adjustments of the wearplate clearance with the turn of a hand.
Once adjustments have been made, the collar locks in place maintaining the clearance setting even if the cover plate is removed.
This design doubles the life of the impeller and wearplate, and keeps the pump operating at maximum efficiency.
Multi-vane, high efficiency solids handling impeller constructed of ductile iron. The impeller will handle up to 1 1/4" diameter solids.
Exclusive double-floating, self-aligning, oil lubricated mechanical cartridge seal with stationary and rotating face of silicon carbide or tungsten titanium carbide is specifically designed for abrasive industrial service. Fluorocarbon and PTFE elastomers are also available.
The removable cover plate with "easy-grip" handle and pusher bolt capability provides quick and easy access to the pump interior without disconnecting piping. Clogs can be removed and the pump can be returned to service in minutes. Impeller, seal, wearplate and flap valve can also be accessed through cover plate opening for inspection or service.
Inspection of pump shaft or bearings is easily accomplished without disturbing pump casing or piping by removing rotating assembly. Simply remove four bolts from the back of the pump and the assembly slides out.
A five-year manufacturer's warranty is standard on all Gorman-Rupp Super U Series pumps. Replacement rotating assemblies are also warranted 5 years.
