Submersible Pumps
Submersible pumps live in the liquid—delivering reliable, low‑NPSH lifting for wastewater, sludge, abrasive slurry, condensate, stormwater, and deep‑well services. We size and supply solids‑handling, grinder/cutter, slurry, high‑temperature, corrosion‑resistant, and dewatering submersibles from BJM, Goulds, and Grundfos. Need explosion‑proof (Class I, Div 1/2), stainless steel, shredder, thermal protection, or seal failure monitoring? We’ll spec the exact build—often shipping same day from California, Washington, and Arizona.
Not sure if you need grinder vs. solids‑handling, a cooling jacket for low‑submergence, or a slurry‑rated impeller? Talk to a pump engineer—most quotes leave our inbox within one business hour.
Quick Selector: Submersible Families (BJM / Goulds / Grundfos)
| Manufacturer / Example Series | Type | Typical Flow | Max Head | Solids / Features | Temp / Materials | Best For |
|---|---|---|---|---|---|---|
| BJM (SL, KZN, R, Fahrenheit) | Slurry / shredder / high‑temp / SS | Up to ~5,000 GPM | Up to ~400 ft | Cutters, agitators, abrasion‑resistant | Up to ~200°F (hi‑temp series), 316SS options | Abrasive slurries, hot sumps, chemical, shredding rags |
| Goulds (Sewage / Grinder / SXT, etc.) | Wastewater solids‑handling & grinder | Up to ~4,000 GPM | Up to ~250 ft | 2–3” solids (typ.), grinder cutters | CI, 316SS options, explosion‑proof motors | Lift stations, municipal/industrial wastewater |
| Grundfos (SL/SE, SEG Grinder, SP Deep Well) | Wastewater solids, grinder, deep‑well | Up to ~6,000 GPM (wastewater) / deep‑well HP varies | Up to ~400 ft (series‑dependent) | Solids‑handling, grinder cutters, stainless well pumps | CI/SS wastewater; SS deep‑well (SP) | Municipal wastewater, industrial sumps, groundwater wells |
Values above are representative. We’ll confirm the exact limits for your fluid, solids %, temperature, and duty cycle.
Why (and When) Submersible Pumps Win
- No priming headaches—pump is submerged in the fluid
- Great for low NPSH or suction lift isn’t possible
- Compact footprint in pits, wells, sumps, wet wells
- Solids & rags? Use shredder/grinder or vortex designs
- High‑temperature & corrosion‑resistant builds available
- Explosion‑proof, seal fail & thermal protection for hazardous areas
How We Engineer Submersible Pumps (So They Don’t Plug, Burn, or Trip)
1) Solids, Rags & Slurry Abrasion
We match impeller style (channel, vortex, grinder, shredder) to your solids type/size and % by volume. For abrasive duty, we spec hardened components, agitators, or recessed impellers.
2) Thermal, Seal Fail & Cooling Jackets
Submersibles rely on the fluid for cooling—if run at low submergence, we may add a cooling jacket. We commonly include thermistors, seal fail probes, and moisture sensors wired to your control panel.
3) Materials & Temperature
BJM’s Fahrenheit series handles hot pits; stainless (316/duplex) options fight corrosion. We align elastomers, cables, and seal faces to chemical exposure and temp.
4) Controls, Panels & Explosion‑Proof
Duty cycling, level control, seal fail alarms, and Class I, Div 1/2 certified systems are standard asks. We supply complete guide rail packages, base elbows, control panels, VFDs, and power cables to length.
BJM vs. Goulds vs. Grundfos — Where Each Shines
| Brand | Core Strengths | Notable Options | Typical Uses |
|---|---|---|---|
| BJM | Slurry/abrasive, high‑temperature, shredder/cutter, stainless | Fahrenheit (high temp), KZN (slurry), R-Series (shredder), stainless construction | Hot sumps, abrasive pits, chemical, industrial wastewater |
| Goulds | Municipal/industrial wastewater solids & grinder pumps | Explosion‑proof motors, rail systems, grinder cutters | Lift stations, sewage, industrial sumps |
| Grundfos | Efficient wastewater submersibles (SL/SE), grinder (SEG), stainless deep‑well (SP) | Smart controls, SE/SL high‑efficiency hydraulics, SP well pumps | Municipal wastewater, industrial process, groundwater wells |
Common Submersible Pump Applications
- Municipal wastewater & lift stations
- Industrial sumps, hot condensate pits, CIP return
- Slurry pits, mining & mineral processing sumps
- Stormwater & flood control
- Grinder/cutter service for rags & wipes
- Deep‑well groundwater (Grundfos SP)
Parts, Kits & Accessories
- Impellers, wear rings/plates, volutes
- Mechanical seal kits (dual seals), oil chamber kits
- Power cables to length, cord grips, moisture probes
- Guide rail systems, base elbows, check & isolation valves
- Control panels, soft‑starters/VFDs, level transducers & floats
- Cooling jackets, agitators, hardened parts for slurry
Send your flow, head, solids %, temp, chemistry & power—quotes usually in < 1 hour.
Submersible Pump FAQs
What’s the difference between solids‑handling and grinder/cutter submersibles?
Solids‑handling pumps pass large solids (2–3″+) with non‑clog hydraulics. Grinder/cutter pumps macerate rags & wipes into fine slurry for small‑diameter force mains or where plugging is chronic.
Can submersible pumps run dry?
Not typically. Most submersibles rely on the pumped liquid for motor/seal cooling. For intermittent submergence, we’ll specify cooling jackets, thermal protection, or alternate technologies.
Do you offer explosion‑proof / Class I Div 1 submersibles?
Yes. We supply XP‑rated motors, seal fail & thermal probes, and compliant panels for hazardous locations (C1D1/C1D2).
How do I size a submersible for abrasive slurry?
We need solids size & % by volume, SG, particle hardness, and viscosity. We’ll select hardened components, agitators, and derate curves for wear life (BJM is a common fit here).
Can you provide the rail system, valves, and panel, too?
Absolutely. We package guide rails, base elbows, isolation/check valves, control panels, level controls, and VFDs—fully coordinated and tested.