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Home > Pumps > Gray Mills Pumps
Advanced Bearings & Belts Company is pleased to provide the following GRAY MILLS brand of pumps for your convenience. If there are any questions, please do not hesitate to contact us.
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Gray Mills Agitator Series Pumps |
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 Agitator pumps are designed for use with liquid containing solids which must be kept in suspension or require constant circulation to maintain uniform viscosity. A port in the pump volute bypasses a jet stream of fluid to "stir" tank contents. A port plug is furnished so that the bypass can be eliminated when tank agitation is not desired.
- Pump column lengths from 7-5/8" to 16-3/4" plus drum lengths.
- Horsepower: From 1/8 to 2 HP.
- Flows to 90 GPM.
- Normal viscosities from 300 SSU to 500 SSU.
Available in both closed column (HRTG model) and easy-to-clean Tri-Rod design. In order to extend motor life, rod style pumps are equipped with a vapor diffuser which prevents solvent vapors from diluting the motor bearing grease. These pumps are also available as part of a pump and round tank system with 2-gallon (HRTG only), 10,20, or 30 gallon capacities. |
Agitator Series Construction Materials
| HRTG |
Pump body
Shaft
Impeller |
Teflon®-coated cast iron
Carbon steel or optional stainless steel
Glass-filled Celcon |
| TNRT Series |
Volute
Shaft and Rods
Impeller |
Teflon®-coated cast iron.
Nickel-plating available as an option
416 stainless steel
Glass-filled Celcon |
| TNRSS Series |
Shaft, Rods, Volute
Impeller |
316 Series stainless steel
Chemically inert Ryton |
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Agitator Series Pump Model Specifications
| Graymills uses "B" length to define the measurement from the bottom of the volute to the bottom of the motor. |
| Teflon Coated Models |
| Model |
"B" Length |
HP |
RPM |
Discharge |
Max. SSU |
Motor Suffix |
| HRTG45 |
8" |
1/8 |
1725 |
1/2" NPT
horizontal |
500 |
E, F |
| TNRT36 |
12-3/4" |
1/4, 1/2 |
1725 |
3/4" NPT
vertical |
500 |
E, F, GAMC |
| TNRT37 |
13-7/8" |
1/4, 1/2 |
1725 |
3/4" NPT
vertical |
500 |
E, F, GAMC |
| TNRT38 |
16" |
1/4, 1/2 |
1725 |
3/4" NPT
vertical |
500 |
E, F, GAMC |
| TNRT336 |
36" |
1/4, 1/2 |
1725 |
3/4" NPT
vertical |
500 |
E, F, GAMC |
| TNRT36H |
12-3/4" |
1/2, 3/4,
1, 1-1/2 |
3450 |
1" NPT
vertical |
500 |
E, F |
| TNRT46 |
13" |
1/2 |
1725 |
1" NPT
vertical |
500 |
E, F, GAMC |
| TNRT46H |
13" |
2 |
3450 |
1-1/4" NPT
vertical |
500 |
E, F |
| TNRT47 |
14-5/8" |
1/2 |
1725 |
1" NPT
vertical |
500 |
E, F, GAMC |
| TNRT48 |
16-3/4" |
1/2 |
1725 |
1" NPT
vertical |
500 |
E, F, GAMC |
| TNRT436* |
36" |
1/2 |
1725 |
1" NPT
vertical |
500 |
E, F, GAMC |
| Stainless Steel Models |
| Model |
"B" Length |
HP |
RPM |
Discharge |
Max. SSU |
Motor Suffix |
| TNRSS31 |
7-5/8" |
1/4, 1/2 |
1725 |
3/4" NPT
vertical |
500 |
E, F, GAMC |
| TNRSS33 |
10-1/8" |
1/4, 1/2 |
1725 |
3/4" NPT
vertical |
500 |
E, F, GAMC |
| TNRSS36 |
12-3/4" |
1/4, 1/2 |
1725 |
3/4" NPT
vertical |
500 |
E, F, GAMC |
| TNRSS37 |
13-7/8" |
1/4, 1/2 |
1725 |
3/4" NPT
vertical |
500 |
E, F, GAMC |
| TNRSS38 |
16" |
1/4, 1/2 |
1725 |
3/4" NPT
vertical |
500 |
E, F, GAMC |
| TNRSS33H |
10-1/8" |
1/2, 3/4,
1, 1-1/2 |
3450 |
1" NPT
vertical |
500 |
E, F |
| TNRSS36H |
12-3/4" |
1/2, 3/4,
1, 1-1/2 |
3450 |
1" NPT |
300 |
E, F |
*Due to its length, this pump has a lower bearing and cannot be used to pump liquids
containing abrasives.
| Motor Suffix |
A |
B |
E |
F |
Z |
GAM* |
| Voltage |
115 |
230 |
115/230 |
230/460 |
575 |
Air Motor |
| Hertz |
60/50 |
60/50 |
60/50 |
60/50 |
60 |
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| Phase |
1 |
1 |
1 |
3 |
3 |
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| * 56C face air motors are designated GAMC |
| Model |
A* |
C (Max) |
D |
E |
F |
G |
| TNRT30 |
6-1/2" |
8-1/2" |
1-5/16" |
5-1/2" |
2-1/2" |
9-5/8" |
| TNRT30H |
6-1/2" |
11-1/2" |
1-5/16" |
5-1/2" |
2-1/2" |
9-5/8" |
| TNRT40 |
6-1/2" |
10" |
1-5/16" |
6" |
3-1/2" |
10-1/4" |
| TNRT30H |
6-1/2" |
13" |
1-5/16" |
6" |
3-1/2" |
10-1/4" |
| TNRSS30 |
6-1/2" |
8-1/2" |
1-5/16" |
4-1/16" |
2-9/16" |
8" |
| TNRSS30H |
6-1/2" |
11-1/2" |
1-5/16" |
4-1/16" |
2-9/16" |
8" |
| * Shroud on fan-cooled motors (H models) increases this dimension approx. 3/4". |
1. TNRT40H 2 HP, water
2. TNRT40H 2 HP, 300 SSU oil
3. TNRT30H/TNRSS30H 1-1/2 HP, water
4. TNRT30H/TNRSS30H 1-1/2 HP, 300 SSU oil
5. TNRT30H/TNRSS30H 1 HP, water
6. TNRT30H/TNRSS30H 1 HP, 300 SSU oil
7. TNRT30H/TNRSS30H 3/4 HP, water
8. TNRT30H/TNRSS30H 3/4 HP, 300 SSU oil
9. TNRT30H/TNRSS30H 1/2 HP, water
10. TNRT30H/TNRSS30H 1/2 HP, 300 SSU oil
11. TRNT40 1/2 HP, water
12. TNRT40 1/2 HP, 300 SSU oil
13. TNRT30/TRNSS30 1/4 & 1/2 HP, water
14. TNRT30/TRNSS30 1/4 & 1/2 HP, 300 SSU oil |
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| If you have any questions or would like to place an order, please feel free to contact us at sales@advancedbearings.com or by phone at 847-895-1111. |
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Gray Mills FM Series Pumps |
 FM Series pumps are capable of pumping a wide range of viscosities. They are compact, yet they offer the performance and dependability of larger pumps. Graymills's volute design enables FM Series pump to pump down to an extremely low level. Discharge is above the integral mounting flange.
- Pump column lengths from 3-1/2" to 12-1/2".
- Horsepower: 1/8, 1/4.
- Flows to 18 GPM.
- Normal viscosities to 500 SSU.
These pumps will drop through a 4-1/2" hole supported by their integral mounting flange. Discharge is above the mounting flange. Discharge diameter and maximum viscosity for each pump are listed below. Pump performance and available motor suffixes as shown. FM Series pumps can be purchased as part of a pump and tank unit with a 6, 10, or 17 gallon capacity.
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FM Series Construction Materials |
| Pump Body and Volute |
All models cast iron |
| Shaft |
All models stainless steel |
| Impeller |
FM60 glass-filled Celcon
FM70 aluminum |
| Special Materials |
Available with nickel-plated cast iron pump bodies. Aluminum pump body
also available. Stainless steel bottom plates are included when special
materials are ordered. Shafts also available in stainless steel. |
FM Series Pump Model Specifications
Graymills uses "B" length to define the measurement from the bottom of the volute to the bottom of the motor.
| Model |
"B" Length |
HP |
RPM |
Discharge |
Max. SSU |
Motor Suffix |
| FM63H |
3-1/2" |
1/8 |
3450 |
1/2" NPT
horizontal |
500 |
A, B, F, Z |
| FM66H |
6" |
1/8 |
3450 |
1/2" NPT
horizontal |
150 |
A, B, F, Z |
| FM68H |
8-1/2" |
1/8 |
3450 |
1/2" NPT
horizontal |
500 |
A, B, F, Z |
| FM612H |
12-1/2" |
1/8 |
3450 |
1/2" NPT
horizontal |
500 |
A, B, F, Z |
| FM76H |
6" |
1/4 |
3450 |
1/2" NPT
horizontal |
500 |
F, Z |
| FM78H |
8-1/2" |
1/4 |
3450 |
1/2" NPT
horizontal |
500 |
F, Z |
| FM712H |
12-1/2" |
1/4 |
3450 |
1/2" NPT
horizontal |
500 |
F, Z |
| Motor Suffix |
A |
B |
E |
F |
Z |
GAM* |
| Voltage |
115 |
230 |
115/230 |
230/460 |
575 |
Air Motor |
| Hertz |
60/50 |
60/50 |
60/50 |
60/50 |
60 |
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| Phase |
1 |
1 |
1 |
3 |
3 |
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| * 56C face air motors are designated GAMC |
1. FM70H 1/4HP, water
2. FM60H 1/8HP, water
3. FM70H 1/4HP, 300 SSU oil
4. FM60H 1/8HP, 300 SSU oil |
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| If you have any questions or would like to place an order, please feel free to contact us at sales@advancedbearings.com or by phone at 847-895-1111. |
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Gray Mills Multi-Stage Pumps |
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Graymills Multi-Stage pumps are designed to handle the tough jobs, when high pressure and coolant delivery is required to keep drilling, boring, grinding, turning and milling machinery in top working condition.
MSPR Series Pumps
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, viton 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. Please contact us for more information.
MSPR Series Specifications
Pump
- Capacities to 33 GPM
- Pressure to 180 psi, heads to 416 ft.
- Pipe connection: suction and discharge to 1" NPT (F)
- Inlet pressure: 75 psi maximum
- Temperature 160°F/71°C maximum
- Rotation CCW when viewed from motor end.
Motor
- NEMA Standard TEFC
- 1, 1.5, 2 and 3 HP
- 230/460V, 60Hz, Three phase
- 3500 RPM
- Stainless steel shaft
| Graymills uses "B" length to define the measurement from the bottom of the volute to the bottom of the motor. |
| Model |
“B” Length |
HP |
Stages |
RPM |
Discharge |
Max. SSU |
Motor Suffix |
| MSPR5 |
9-1/4" |
1 |
5 |
3500 |
1" NPT |
300 |
F |
| MSPR7 |
11-1/8" |
1 1/2 |
7 |
3500 |
1" NPT |
300 |
F |
| MSPR9 |
13" |
2 |
9 |
3500 |
1" NPT |
300 |
F |
| MSPR13 |
16-3/4" |
3 |
13 |
3500 |
1" NPT |
300 |
F |
| Motor Suffix |
A |
B |
E |
F |
Z |
GAM* |
| Voltage |
115 |
230 |
115/230 |
230/460 |
575 |
Air Motor |
| Hertz |
60/50 |
60/50 |
60/50 |
60/50 |
60 |
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| Phase |
1 |
1 |
1 |
3 |
3 |
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| * 56C face air motors are designated GAMC |
| Model |
Stages |
HP |
A |
B |
C |
D |
E |
| MSPR5-F |
5 |
1 |
21-1/4 |
9-1/4 |
6-1/8 |
8-3/8 |
10 |
| MSPR7-F |
7 |
1-1/2 |
24 |
11-1/8 |
8 |
10-1/4 |
10-7/8 |
| MSPR9-F |
9 |
2 |
26 |
13 |
9 7/8 |
12-1/8 |
11 |
| MSPR13-F |
13 |
3 |
30 |
16-3/4 |
13-5/8 |
15-7/8 |
11-1/4 |
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| If you have any questions or would like to place an order, please feel free to contact us at sales@advancedbearings.com or by phone at 847-895-1111. |
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Gray Mills Flange Mount Pumps BSW/CSW, DSW/ESW |
 Flange Mount pumps are designed to mount to the outer wall of integral machine sumps or tanks. All Flange Mount pumps have two horizontal discharge ports as standard to facilitate plumbing from either side, with a single internal port available as an option. Sealed pumps are available for applications in which the pump motor is mounted below liquid level.
- Normal viscosities from 300 SSU to 500 SSU.
- Pump column lengths from 8" to 17-3/8".
- Horsepower: From 1/8 to 3 HP.
- Flows to 90 GPM.
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Flange Mount pumps can be assembled in pump and tank systems. Contact us for more information.
There are two types (BSW/CSW and DSW/ESW) within this model series. Pumps within the types are identical in performance, differing only in flange and discharge size. See specific data following. All share these common elements: |
Flange Mount Series Construction Materials
| Pump Body and Volute |
cast iron |
| Shaft |
carbon steel |
| Impeller |
glass-filled Celcon or cast aluminum (as noted) |
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| If you have any questions or would like to place an order, please feel free to contact us at sales@advancedbearings.com or by phone at 847-895-1111. |
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Gray Mills IMS Series Self-Priming Type |
Interchangeability Chart for Graymills Replacement Pumps
| Self-Priming Style Pumps |
| GRAYMILLS |
FUJI |
OLD FUJI # |
GUSHER |
HAAS |
MITSUBISHI |
TOSHIBA |
HITACHI |
YASUKAWA |
| IMS08 |
VKN-043A |
VKN-041A |
VBH-08 |
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CPS-041 |
VFPC-01F |
| IMS08 |
VKN-053A |
VKN-051A |
VBH-08 |
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NP-60J |
OPF-60M |
CPS-063 |
VFPC-061JF |
| IMS25 |
VKN-063A |
VKN-061A |
VBH-25 |
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NP-100J |
OPF-100M |
CPS-103 |
VFPC-101JF |
| IMS25 |
VKN-073A |
VKN-071A |
VHG-25 |
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NP-180J |
OPF-180M |
CPS-183 |
VFPC-181JF |
| IMS50 |
VKN-083A |
VKN-081A |
VBH-50 |
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NP-250J |
OPF-250M |
CPS-253 |
VFPC-251JF |
| IMS75 |
VKN-093A |
VKN-091A |
VBH-75 |
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NP-400J |
OPF-400M |
CPS-403 |
VFPC-401JF |
| IMS100 |
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VKN-112A |
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VFPC-751JF |
All motors are completely protected from soil and dust, and feature permanently lubricated, sealed bearings. Motors larger than 1/4 HP are fan cooled. Self-priming with a 2 ft. maximum self-priming lift, IMS Series pumps may be mounted above liquid level as well as other locations remote from the tank. Discharge information, pump performance and available motors suffixes are below.
IMS Series Construction Materials
Pumps Body and Volute
Shaft
Impeller |
All models cast iron
All models carbon steel
IMS08 plastic
IMS25 plastic
IMS50 aluminum
IMS75 aluminum
IMS100 aluminum |
| MODEL |
A |
B |
C |
D |
E |
F |
G |
| IMS08 |
6-7/8 |
5-1/2 |
1-5/8 |
5-1/2 |
1/2 |
5/16 |
3-7/8 |
| IMS25 |
9 |
7-3/8 |
2-1/8 |
7-1/4 |
3/4 |
5/16 |
5-1/8 |
| IMS50 |
10-1/4 |
7-3/8 |
2-1/8 |
8-7/16 |
3/4 |
5/16 |
5-31/32 |
| IMS75 |
11-3/4 |
8 |
2-1/2 |
8-5/8 |
1 |
5/16 |
6-3/32 |
| IMS100 |
11-3/4 |
8 |
2-1/2 |
8-5/8 |
1 |
5/16 |
6-3/32 |
| All measurements in inches. |
IMS Series Pump Model Specifications
| Model |
HP |
RPM |
Discharge* |
Max. SSU |
Max.Flow Rate |
Motor Suffix |
| IMS08 |
1/8 |
3450 |
3/8" metric* |
500 |
9.5 GPM |
E, F |
| IMS25 |
1/4 |
3450 |
3/4" metric* |
500 |
20 GPM |
E, F |
| IMS50 |
1/2 |
3450 |
3/4" metric* |
500 |
32 GPM |
F |
| IMS75 |
3/4 |
3450 |
1" metric* |
500 |
43 GPM |
F |
| IMS100 |
1 |
3450 |
1" metric* |
500 |
48 GPM |
F |
* All discharges on the IMS series pumps are metric threaded horizontal discharge above the integral mounting flange. Metric threads are compatible with NPT in 1/2" and 3/4" sizes. Adapters must be used to connect 3/8" and 1" ports to NPT piping. Order adapter number 724-07445 for 3/8" ports; number 724-07446 for 1" ports.
| Motor Suffix |
A |
B |
E |
F |
Z |
GAM* |
| Voltage |
115 |
230 |
115/230 |
230/460 |
575 |
Air Motor |
| Hertz |
60/50 |
60/50 |
60/50 |
60/50 |
60 |
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| Phase |
1 |
1 |
1 |
3 |
3 |
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1. IMS100 1HP
2. IMS75 3/4HP
3. IMS50 1/2HP
4. IMS25 1/4HP
5. IMS08 1/8HP |
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| If you have any questions or would like to place an order, please feel free to contact us at sales@advancedbearings.com or by phone at 847-895-1111. |
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Graymills offers several styles of drum pumps to meet the needs of industry. The MLTP Series and LLTP Series are transfer pumps designed to move liquids from 30 or 55 gallon drums to tanks, vats or semi-permanent installations. If you have questions about your specific use and would like a recommendation, please contact us.
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Transfer Drum Pumps
There are two series in this category to handle most liquids encountered. The LLTP Series is designed to transfer all types of thin bodied, slightly viscous and aggressive liquids from 30 and 55 gallon tanks. The MLTP Series pumps are ideal for corrosive chemicals, solvents, flammables and applications requiring high purity or sanitary construction. These are designed to transfer semi-viscous liquids, detergents, vinegar and motor oil from carboys, 55 gallon drums and tanks.
Optional strainers, static protection kits, motor and drum adapters, filter/lubricators, discharge tubing and mounting accessories are available for these pumps.
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LLTP Series
- Designed to transfer all types of thin-bodied, slightly viscous and aggressive liquids from 30 and 55 gallon tanks.
- No seals in liquid end.
- Double suction impeller for increased flow and pressure.
- Corrosion resistant materials for durability.
- Light weight, easy to handle.
- Tube lengths of 27, 40 and 48 inches.
- Viscosities to 500 cps.
- Horsepower: 1/2; single phase and air.
- Flows to 40 GPM.
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MLTP Series
- Ideal for corrosive chemicals, solvents, flammables and applications requiring purity or sanitary construction.
- Designed to transfer semi-viscous liquids, detergents, vinegar and motor oil from carboys, 55 gallon drums and tanks.
- Sealed in liquid end.
- Lifting compressor for performance in transferring medium viscosity fluids.
- Stainless steel shaft and outer tube.
- Lightweight, easy to handle.
- Pump interchangeable with motors.
- Tube lengths of 27, 40 and 48 inches.
- Viscosities to 400 cps.
- Horsepower: 1/4 and 1/2; single phase and air.
- Flows to 16 GPM.
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| If you have any questions or would like to place an order, please feel free to contact us at sales@advancedbearings.com or by phone at 847-895-1111. |
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