3800 Series
The 3800 Series features a multi-lip grease purged seal assembly, and has a built-in maintenance indicator and weep detection. These sealed bearing pumps have triple shaft seals, plus sealed ball bearings for an air tight pump. The 3800 Series has bi-directional rotation capabilities and over-pressure relief type grease fittings.
- Helical Gears for Quiet Operation
- Bi-Directional Rotation
- Grease Purged Seals
- Differential Pressures up to 125 PSI
- Up to 540 GPM
Standard Construction Materials
- Cast iron housings
- Hardened cast iron gears
- Hardened steel shafts
- External ball bearings
- Viton and HNBR lip seals
Configuration Options
- Wear plates available
- Hardened steel gears available
Typical Applications
- Oil field applications including light and heavy crude oils
- Kerosene mixtures
- Condensates
- Hot Oil
3800 Series
A sealed bearing pump series that is specially designed for the oil industry, including those with light and heavy crude oils.
3800 Series Nomenclature
The FIGURE number consists of a nine digit number.
The first digit (3) indicates the port arrangement.
- 3 = 3800 Series with right angle ports
The second digit (8) indicates the pump series.
The third and fourth digits (48) indicates the approximate theoretical displacement in U.S. gallons per 100 revolutions. Gallons [Liters]/100 Rev.
- 32 [121.1]
- 43 [162.8]
- 48 [181.7]
- 58 [219.55]
The letter (F) indicates port style.
- F = Pump with Roper standard flange ports
- No Letter = indicates threaded ports.
The last letters usually indicate the rotation and port configuration. Rotation and port configuration is viewed from the drive end of the pump.
- W = Clockwise rotation, inlet on left, high drive.
- Z = Counter-clockwise rotation, inlet on right, high drive.
- X = Counter-clockwise rotation, discharge on left, high drive.
- Y = Clockwise rotation, discharge on right, high drive.
- LW = Clockwise rotation, discharge on left, low drive.
- LZ = Counter-clockwise rotation, discharge on right, low drive.
- LX = Counter-clockwise rotation, inlet on left, low drive.
- LY = Clockwise rotation, inlet on right, low drive.
Occasionally, special pumps or configurations are required which are unique for a particular application. These modifications are clarified by a SPECification number. Identification of any items different than a standard pump can be made by consulting Roper Pump Company or an authorized distributor.
- A = low pressure spring (standard)
- B = high pressure spring
The SERIAL number is a unique number assigned to each pump built by Roper Pump Company.
In any communication concerning this pump, always be sure to include the Figure, Spec, Serial, and Type numbers so proper identification of the pump can be assured.
3858, 4858
The FIGURE number consists of a seven digit number.
The first digit (3) indicates the port arrangement.
- 3 = 3800 Series with right angle ports
- 4 = 4800 Series with through ports
The second digit (8) indicates the pump series.
The third and fourth digits (48) indicates the approximate theoretical displacement in U.S. gallons per 100 revolutions. Gallons [Liters]/100 Rev.
- 58 [219.6]
The letter (F) indicates port style.
- F = Pump with Roper standard flange ports
- No Letter = indicates threaded ports.
The last letters usually indicate the rotation and port configuration. Rotation and port configuration is viewed from the drive end of the pump.
- W = Clockwise rotation, inlet on left, high drive.
- Z = Counter-clockwise rotation, inlet on right, high drive.
- X = Counter-clockwise rotation, discharge on left, high drive.
- Y = Clockwise rotation, discharge on right, high drive.
- LW = Clockwise rotation, discharge on left, low drive.
- LZ = Counter-clockwise rotation, discharge on right, low drive.
- LX = Counter-clockwise rotation, inlet on left, low drive.
- LY = Clockwise rotation, inlet on right, low drive.
Occasionally, special pumps or configurations are required which are unique for a particular application. These modifications are clarified by a SPECification number. Identification of any items different than a standard pump can be made by consulting Roper Pump Company or an authorized distributor.
- A = low pressure spring
- B = high pressure spring
- C= (Standard)
The SERIAL number is a unique number assigned to each pump built by Roper Pump Company.
In any communication concerning this pump, always be sure to include the Figure, Spec, Serial, and Type numbers so proper identification of the pump can be assured.
Rebuild Kits
Major rebuild kits available for standard pumps. See distributor or manufacturer for more details.
3800 Series - Size & Specification Chart
Note: Maximum speed and flow can only be achievable under the correct inlet (suction) and liquid conditions. Liquid viscosity and discharge pressure, plus pumping conditions will determine actual flow (ie. – theoretical minus slip).
3800 Pump Series Documents
Questions?
we don’t have figure numbers
