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Vertical Centrifugal Pump

1/2HP 115/230v 7-5/8"L
Model Number
TN31HE 1/2
$1,197.53
graymills TN31 vertical pump
Graymills pumps are typically found on OEM machine tool equipment and are thus well suited for replacement or retrofit machine tool pumping applications. These pumps can also be used on other industrial applications requiring a vertical cast iron or stainless pump. This pump is close to the performance of the Haas cnc pump in size and performance.

TN Series pumps are designed to cover a wide range of pumping applications. They can handle thin and heavy liquids containing abrasives and bits of solids, while maintaining consistent and dependable flow. Except for the 24” and 36” models, pumps are designed so that there are no bearings or seals in the liquid, making them virtually maintenance-free.

TN 30 Series pumps are equipped with either 1725 RPM (TN 30), or 3450 RPM (TN 30H) motors. The TN 30H, is similar to the TN 30, with the exception of its higher head capabilities. Discharge diameter and maximum viscosity for each pump are listed. These pumps can be ordered as part of a pump and tank systems with 10, 21, 38, 55, and 85 gallon capacities.

TN 30H: Available in ½, 3/4 , 1and 1-1/2 HP, 3450 RMP, 1”NPT vertical discharge. Maximum viscosities are: ½, ¾, 1 HP-300 SSU; 1-1/2 HP-500 SSU.

Special Materials: All TN Series pumps are available with nickel plating, baked epoxy, Teflon or nylon coatings, and stainless steel shafts for extra corrosion and abrasion resistance.

Note: Information about the flow curves: 1. TN30H 1-1/2 HP water, 2. TN30H 1-1/2 HP 300 SSU oil, 3. TN30H 1 HP water, 4. TN30H 1 HP 300 SSU oil, 5. TN30H ¾ HP water, 6. TN30H ¾ HP 300 SSU oil, 7. TN30H ½ HP water, 8. TN30h ½ hp 300 SSU oil, 9. TN30 ¼ HP water, 10. TN30 ¼ hp 300 SSU oil, 11. TN30 1/8 HP water, 12. TN30 1/8 hp 300 SSU oil

More Information
Model Number TN31HE 1/2
Series TN30 Vertical CI Coolant Pump & Mtr.
Max Flow (GPM.) 38
Max Flow GPH 2280
TDH Maximum (Ft) 40
TDH Maximum (PSI) 17
Horse Power (HP) 1/2
Horsepower (IE .5, 1, 1.5, 20) 0.5
Outlet Connection Type FNPT
Outlet (In.) 1
Wetted Materials 304SS, Acetal-Delrin, Cast Iron
Voltage (V) 115/230
Voltage (Range) 110-120/220-240
Phase (Ø) Single (1)
Motor Frequency 50/60
Motor TENV
Speed (RPM.) 3450
Motor Frame 48/56C
Self Priming No
Max Operating Temperature (F) 180
Max Particle Size (In) 0.1300
Viscosity SAE 10 oil 88.00 cp 500.00 ssu
Shaft 304SS
Length (In.) 7.6300
Mechanical Seal No
Impeller Size (IN.) 5.0000
Coupling Y
Other suitable replacement for OEM pumps like Gusher Ruthman
Drain Yes
Port Rotation Yes
Country of Manufacture United States
Weight (Lbs) 53.000000
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