My Cart

Vertical Stainless Centrifugal Pump & Mtr

3HP 230/460v
Model Number
Vertical Stainless Centrifugal Pump & Mtr

Graymills MVP12

Graymills pumps are typically found on OEM machine tool equipment and are thuswell suited for replacement or retrofit machine tool pumping applications. Thesepumps can also be used on other industrial applications requiring a stainless pump.

Available in 5-, 7-, 9-, or 13-stage models, the Graymills MSPR series provides steady, pulsation-free coolant delivery that expedites chip removal and heat dissipation needs. These pumps permit increased feed rates by preventing thermal shock to cutting tools and lengthening tool life substantially.

MSPR pumps are designed for extended service life. They are manufactured with long-lasting cast iron in the discharge head and suction head. Corrosion resistant 300 series stainless steel and thermoplastic internal components are encased in a stainless steel shell. The mechanical seal has carbon/silicon carbide faces, FKM elastomers, and 300 stainless steel parts. Abrasion resistant impellers and diffusers are high strength glass-filled thermoplastic. By attaching the suction head and discharge head to the multi-stage body with O-rings and threads, rather than glue and welds, this design is easy to disassemble, easy to maintain.

MSPR pumps can be combined with 21, 38 or 50 gallon Graymills tank kits to create a total circulating system.

MSPR Series Specifications

Pumpï½·Capacities to 33 GPM ï½·Pressure to 180 psi, heads to 416 ft. ï½·Pipe connection: suction and discharge to 1" NPT (F) ï½·Inlet pressure: 75 psi maximum ï½·Temperature 160ï½°F/71ï½°C maximum ï½·Rotation CCW when viewed from motor end.

Motorï½·NEMA Standard TEFCï½·230/460V, 60Hz, Three phase ï½·Stainless steel shaft Click here to go view the Vertical Mounting Flange for this pump

By-pass Replacement Kit

More Information
Model Number MVP12
Series MSPRS Vertical Coolant Pump Stainless
Max Flow (GPM.) 38
Max Flow GPH 2280
TDH Maximum (Ft) 420
TDH Maximum (PSI) 188
TDH BEP (FT.) 340.000000
Horse Power (HP) 3
Horsepower (IE .5, 1, 1.5, 20) 3.0000
Outlet Connection Type FNPT
Outlet (In.) 1
Wetted Materials CI-SS
Elastomers / O-ring EPDM
Voltage (V) 230/460
Voltage (Range) 220-240/460-480
Phase (Ø) Three (3)
Motor Frequency 50/60
Motor TEFC
Speed (RPM.) 3450
Motor Frame 182/4TC
Self Priming Yes
Max Operating Temperature (F) 180
Viscosity SAE 10 oil 88.00 cp 500.00 ssu
Stages 13
Shaft 304SS
Length (In.) 13.620000
Mechanical Seal TYPE 21
Mechanical Seal Face SiC
Mechanical Seal Type Single
Motor Bearings Ball
Coupling Y
Other suitable replacement for OEM pumps like Gusher Ruthman. Do not operate below 5gpm, use a by-pass on discharge piping. Length above is "B" length which is distance below the mounting plate. See dimensional drawing for complete dimensions.
Impeller Material SS, closed
Cord Length (Ft.) 0
Duty Continuous
Drain Yes
Port Rotation Yes
Country of Manufacture United States
Weight (Lbs) 60.000000
Warranty (YRS.) 1