Horizontal Self-Priming Process Pump
Integrated self-priming casing — no external air separator, check valve, or priming chamber required; self-venting centerline discharge
ANSI B73.1 back pull-out design with flinger disk lubrication — 30% longer bearing life, 15°F cooler operation
Freeze-resistant casing design — protects against rupture from retained priming fluid; multiple seal chamber configurations available
Product Details
| Application | Sump transfer, tank unloading, lift stations, marine ballast, chemical transfer from below-grade storage |
| Flow Rate | Up to 7,500 GPM test capability; multiple frame sizes available |
| Head Range | Up to 740 PSI discharge test pressure |
| Temperature | Up to 600°F (316°C) standard; high-temp configurations available |
| Materials | Carbon Steel ASTM A216 (WCB), 316L SS, CD4MCuN, Hastelloy C-276, Alloy 20, Titanium, Monel |
| Pressure Rating | Class 150# FF standard; 300# RF optional |
Horizontal Self-Priming Process Pump — No External Priming Required
This horizontal self-priming centrifugal process pump integrates priming and air-removal into a single-component casing — eliminating the need for external air separators, check valves, foot valves, or separate priming chambers. Designed for applications where the pump is mounted above the fluid source, it delivers reliable, repeatable priming in the most demanding industrial environments.
How It Works
The integrated self-priming casing design automatically evacuates air from the suction line and re-circulates fluid to establish prime. Once primed, the pump operates as a standard ANSI B73.1 process pump. On restart, retained fluid in the casing enables rapid re-priming without operator intervention — even after extended shutdown periods.
Key Design Features
- Integrated single-component self-priming casing — combines priming, air removal, and pumping functions in one casing; no external priming system required
- Self-venting, centerline discharge — eliminates air binding and simplifies piping layout
- ANSI B73.1 back pull-out design — full pump assembly removable without disturbing casing or suction/discharge piping
- Freeze-resistant casing — high-strength carbon steel construction resists rupture from freezing retained priming fluid
- Flinger disk oil lubrication — 30% increased bearing L-10 life and 15°F lower operating temperatures vs. flood oil
- 316 SS heavy-duty shaft — rigid, corrosion-resistant, standard
Size Range & Dimensions
| Size | Discharge | Suction | Frame Group | Bare Weight |
|---|---|---|---|---|
| 1×1.5×6 | 1″ | 1.5″ | Group 1 | 216 lb (98 kg) |
| 1.5×1.5×8 | 1.5″ | 1.5″ | Group 1 | 215 lb (98 kg) |
| 2×2×10 | 2″ | 2″ | Group 2/3 | 396 lb (180 kg) |
| 3×3×10 | 3″ | 3″ | Group 2/3 | 453 lb (205 kg) |
| 4×4×10 | 4″ | 4″ | Group 2/3 | 481 lb (218 kg) |
| 3×3×13 | 3″ | 3″ | Group 2/3 | 583 lb (264 kg) |
| 4×4×13 | 4″ | 4″ | Group 2/3 | — |
| 6×6×13 | 6″ | 6″ | Group 2/3 | 715 lb (324 kg) |
Materials of Construction
| Component | Standard | Optional |
|---|---|---|
| Casing | Carbon Steel ASTM A216 (WCB) | 316L SS, CD4MCuN, Hastelloy C-276, Alloy 20 |
| Impeller | Carbon Steel | 316L SS, CD4MCuN, Hastelloy C-276, Titanium |
| Shaft | 316 Stainless Steel | Duplex, Hastelloy C-276 |
| Bearing Frame | Carbon Steel | — |
Sealing Flexibility
- Multiple seal chamber configurations — compatible with all major mechanical seal manufacturers
- Supports single and double cartridge seals, component seals, and packing
- Full array of ANSI/API seal support system flush plans available
Performance & Testing
- Factory test capability up to 7,500 GPM and 740 PSI discharge pressure
- Supply tank rated from full vacuum to 65 PSI
- VFD-controlled test motors through 500 HP for precise performance verification
- 5-year unconditional bearing frame warranty
Typical Applications
- Chemical Processing: Transfer from below-grade storage tanks, sump evacuation, acid/caustic transfer
- Water & Wastewater: Lift stations, clarifier scum pits, effluent sumps, storm water
- Marine: Ballast water, bilge pumping, dock-side fluid transfer
- Oil & Gas: Produced water sumps, tank dewatering, pipeline drip collection
- Pulp & Paper: White water pits, broke handling, coating sumps
- Mining: Pit dewatering, process sumps, leach pad solutions
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