• Design
  • Mechanical
  • Fluid
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  • Category Tags
Design
Brand
Imo
Product Type
Pumps > Three-screw
Related Industries
General Industry
Mechanical
Pressure Inlet
Maximum: 3bar-d
Driver
Magnetic
Fluid
Fluid Temperature Range
Maximum: 260°C
Viscosity
Maximum: 5400cSt
Manufacturing
Construction Features
Bearing
Categegory Tags
Design Types
base plate

Product Description

Three-Screw pump Double Suction up to 35 bar

Product Features

Series 324A is a double suction design providing relatively high flow rates in a compact pump. These are commonly used for machinery lubrication, fuel oil transfer and burner services and for asphalt and vacuum tower bottoms processing and transfer. Pumps are available with optional steel casings with or without steam/hot oil jacketing.

324A

SERIES

Nominal flow rate, GPM/LPM, at 500 PSI (34.5 BAR), 200 SSU (43 CST)

SPEED RPM

Size

3500

2900

1750

1450

1150

960

162

101/382

81/307

43/162

33/125

23/87

17/63

187

158/598

128/483

69/261

54/203

38/146

29/109

231

304/1149

246/933

137/517

108/409

79/300

61/232

250

-

314/1189

176/664

139/527

103/390

80/304

275

-

-

238/900

190/718

142/536

111/420

300

-

-

314/1187

251/950

188/713

149/563

325

-

-

404/1528

324/1227

245/926

194/735

350

-

-

510/1928

410/1552

311/1177

248/939

375

-

-

632/2393

510/1931

388/1469

311/1176

412

-

-

851/3222

688/2607

526/1992

423/1602

Series C324 Specifications

Casing- High tensile gray cast iron. Optional cast steel casing available. A 150 PSIG (10.3 BAR) steam/hot oil jacket available on steel cased pumps.

Rotor Housing- Cast pearlitic gray iron.

Power Rotor- Alloy steel, hardened and ground.

Idler Rotors- Alloy steel, hardened and ground.

Gaskets- Cellulose and non-asbestos fiber.

Seal & Bearing- Type P: Alternate rows of hard and soft square molded packing rings, iron cased pumps. Type E: Alternate rows of hard and soft square molded packing rings, steel cased pumps, elevated temperatures. Type B: Buna N bellows mechanical seal with carbon on niresist faces. Recommended for light duty, clean lube and hydraulic oils. Type H: Positive drive mechanical seal with carbon on niresist faces. Recommended for residual and crude oils. Recommended for residual and crude oils. All types have one or two internal sleeve bearings.

Accessories- Completely mounted, built to order pump/driver assemblies are available with baseplates, etc.

Outlet Pressure- 500 PSIG (34.5 BAR) maximum. Minimum recommended differential pressure is 40 PSI (2.8 BAR). Consult Imo Pump for higher pressures.

Inlet Pressure- 25PSIG (1.7BAR) maximum for pumps with single shaft extension. 50 PSIG (3.4 BAR) maximum for pumps with double shaft extensions.

Viscosity- Type P and E: 100 to 25,000 SSU (20 to 5400 CST). Type B: 50 to 3000 SSU (8 to 650 CST). Consider cold startup conditions. Type H: 50 to 20,000 SSU (8 to 4300 CST).

Temperature- Type P: 0 to 400°F (-18 to 204°C). Type E: 0 to 500°F (-18 to 260°C). Type B: 0 to 180°F (-18 to 82°C). Type H: 0 to 250°F (-18 to 121°C)

Drive- Direct only. Double extended shaft for through-drive optional. Magnetic Drive configurations also available.

Rotation- Clockwise facing pump shaft . Counterclockwise optional, sizes 187 to 250.

Mounting- Horizontal foot mount. Optional vertical mounting available for certain applications.

Filtration- Inlet strainers are required to keep contaminants and abrasives out of the pump. They must be selected in consultation with the strainer vendor to prevent pump starvation. Normally, 60 mesh (0.01 inch- 238 micron) for light and 1/8-3/16 inch (3-5mm) openings for heavy oils are recommended.

Maximum Speed- Do not exceed 1800 RPM pumping residual fuels or crude oil due to the presence of abrasives and contaminants:

Maximum RPM*

Size:162187231250275300325350375412
RPM4200420036003000200020002000200020002000

* Assumes minimum inlet pressure requirements are met.

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