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Centrifugal Pumps
Availability
Type
Horse Power
GPM
Price
$0
$3,658.57
89000 Series | Self-Priming Sprinkler Pump
A.Y. McDonald
89000 Series | Self-Priming Sprinkler Pump
- Price
- From $775.21
27000 Series | Super Booster Centrifugal Pump
A.Y. McDonald
27000 Series | Super Booster Centrifugal Pump
- Price
- From $1,121.69
8600SW Series | Convertible Centrifugal Pump
A.Y. McDonald
8600SW Series | Convertible Centrifugal Pump
- Price
- From $669.40
Workhorse End Suction Centrifugal Pump
A.Y. McDonald
Workhorse End Suction Centrifugal Pump
- Price
- From $667.60
84000 Series | Self Priming Centrifugal Pump
A.Y. McDonald
84000 Series | Self Priming Centrifugal Pump
- Price
- From $2,739.93
1500XSW Series | Multi Stage Centrifugal Pump
A.Y. McDonald
1500XSW Series | Multi Stage Centrifugal Pump
- Price
- From $1,857.59
Centrifugal Pumps
Description
Authorized Baker · Davey · Xylem Dealer
Centrifugal Pumps
Irrigation · Boosting
Transfer · HVAC
Reliable flow and pressure for farms, commercial facilities, industrial plants, and demanding residential systems. The complete Baker centrifugal pump lineup — multistage Super Booster, end-suction Workhorse, self-priming sprinkler, and convertible centrifugal — plus Davey, Goulds Water Technology, and Lowara alternatives for every application from ⅓ HP to 5 HP.
⅓ – 5 HP
Power Range
5–250 GPM
Flow Range
6 Series
Baker Lineup
Same Day
Houston Stock
Brands We Carry
Centrifugal Pumps from Trusted Manufacturers
Baker is our flagship centrifugal lineup with full series coverage from compact ⅓ HP boosters to 5 HP self-priming workhorses. Davey adds horizontal multistage premium options. Xylem (Goulds & Lowara) covers heavy-duty industrial and commercial applications by quote.
Find Your Match
Pick Your Application
Centrifugal pumps cover an enormous range of applications. Match your use case below to narrow the right family — then call us at 281.664.8000 for free application engineering.
💧 Pressure Boosting
Boosting low city or well pressure for residential, light commercial, or irrigation supply. Multi-stage delivers higher boost at lower HP.
→ Baker 27000 Super Booster · 1500XSW · Davey HP
🚜 Lawn / Landscape Irrigation
Sprinkler systems, drip irrigation, lawn watering. Self-priming preferred for tank-fed; centrifugal for pressurized supply.
→ Baker 89000 E-Series · 84000 self-priming
🌾 Agriculture / Farm
Field irrigation, livestock watering, water transfer between tanks. Continuous-duty, often diesel-driven backup.
→ Baker 92000/93000 Workhorse · Goulds e-SH
❄️ HVAC / Cooling Tower
Chilled water circulation, condenser water, cooling tower makeup, heat exchanger feed. Reliable continuous duty.
→ Baker 92000/93000 · Goulds e-SH
🏭 Water Transfer
Tank-to-tank transfer, pond fill, dewatering, process water movement. Self-priming saves install time.
→ Baker 84000 self-priming · 89000
🌊 Lake / Stream / Pond Pickup
Drawing from surface water for irrigation, livestock, or supply. Self-priming with foot valve at intake.
→ Baker 8600SW convertible · 84000
Education
Centrifugal Pump Types Explained
"Centrifugal" covers a huge family of designs. The four most common subtypes each solve different problems — pick wrong and you'll fight the pump for its service life.
End-Suction
Single-Stage · The Workhorse
Most Common
▸
How it works: Single impeller, water enters axially, exits at right angle
▸
Best for: Constant supply pressure, HVAC, cooling tower, process water
▸
Pressure ceiling: Limited per stage — won't make high boost economically
▸
Baker series: 92000 (1Ø) · 93000 (3Ø) Workhorse · 84000 self-priming
Multistage
Series Impellers · High Pressure
High PSI
▸
How it works: Multiple impellers in series build pressure progressively
▸
Best for: Pressure boosting, irrigation, water transfer at high head
▸
Efficiency: Better than single-stage above ~80 PSI working pressure
▸
Baker series: 27000 Super Booster · 1500XSW · Davey HP / HS
Self-Priming
Lifts From Below Pump
Versatile
▸
How it works: Built-in priming chamber retains water between cycles
▸
Best for: Lake/pond/tank pickup, sprinkler systems, wastewater transfer
▸
Suction lift: ~25 ft maximum (atmospheric pressure limit)
▸
Baker series: 84000 · 89000 E-Series sprinkler · 8600SW convertible
Flagship Multistage · Pressure Boosting
Baker 27000 Super Booster Series
The flagship of the Baker centrifugal lineup and our top recommendation when pressure boost matters more than raw flow. Precision-engineered multistage performance in seven flow configurations covering every residential and light commercial pressure-boosting application.
The 27000 Super Booster is what you specify when a customer says "my water pressure is fine, but flow drops when more than one shower runs." Multistage design builds pressure across stages instead of forcing a single impeller to do all the work — quieter, cooler, and far more efficient at typical residential boost pressures (40–80 PSI).
HP: ½ – 2 HPVoltage: 115V / 230V 1ØFlow Codes: J · V · K · L · P · MForm: Pump+Motor or Bare Pump End
Buy Complete or Buy Bare
The 27000 series is sold as complete pump-and-motor assemblies (most common) OR as standalone pump ends for custom motor pairings. The bare pump end option is popular for specialty applications: explosion-proof motors, three-phase conversions, and replacement on existing motor stock. Specify carefully — the motor must match the pump end's HP, frame, and shaft configuration.
| Flow Code | Nominal Flow | Typical Application |
|---|---|---|
| J | 5 GPM | Single-fixture booster, small home |
| V | 7 GPM | 1-bath home, point-of-use boost |
| K | 10 GPM | 2-bath home, modest demand |
| L | 15 GPM | 3-bath home, mainstream residential |
| P | 20 GPM | 4-bath home, light commercial |
| M | 25 GPM | Multi-bath + irrigation, small commercial |
| Higher HP within each flow code = higher achievable pressure boost. Match flow demand first, then choose HP based on required PSI. | ||
End-Suction Centrifugal · The Industrial Standard
Baker 92000 / 93000 Workhorse Series
When the application calls for proven, serviceable, no-frills end-suction centrifugal performance, the Workhorse is what you order. ⅓ HP through 3 HP in single-phase (92000) and three-phase (93000) configurations, covering every general-purpose flow and pressure requirement.
Workhorse Engineering Features
①
Heavy-Duty Cast Iron Construction
Cast iron volute and pump body for pressure containment, vibration damping, and decades of service life under continuous duty.
②
Precision-Molded Noryl Impellers
Glass-filled Noryl thermoplastic — corrosion-proof, dimensionally stable, balanced for low vibration. Better than bronze in chemically aggressive water.
③
Four-Position Discharge
Discharge port can be rotated to 12, 3, 6, or 9 o'clock orientation — fits any plumbing configuration without elbows.
④
Three Drain Ports
Drain at any low point regardless of mounting orientation. Critical for freeze protection and seasonal shutdown.
⑤
Rear Pull-Out Service Design
Service the pump end without disturbing piping. Disconnect motor, slide rotating assembly out the back, replace seal/impeller, slide back in.
Workhorse Specifications
92000 Series⅓ – 3 HP · 115/230V 1Ø
93000 Series⅓ – 3 HP · 230/460V 3Ø
BodyCast Iron
ImpellerNoryl precision-molded
Motor StandardNEMA Square Flange
VoltageDual 115/230V (1Ø) ✓
Service DesignRear pull-out ✓
Best ForHVAC · transfer · cooling · irrigation
Self-Priming Series · Lifts From Below
Baker 84000 & 89000 E-Series Sprinkler
Self-priming centrifugal pumps lift water from below their mounting position — critical when pulling from a tank, lake, pond, stream, or any source where the pump can't be flooded by gravity. The 84000 series handles heavy-duty volume; the 89000 E-Series is purpose-built for lawn irrigation.
84000 Series — Close-Coupled Self-Priming · 3 HP & 5 HP
When you need self-priming capability with serious volume — large irrigation systems, commercial water transfer, dewatering, agricultural applications — the 84000 is the right call. Available in 3 HP and 5 HP configurations, both single-phase and three-phase, close-coupled construction (motor and pump share a single shaft) for compact installation and minimal alignment issues.
HP: 3 & 5 HPPower: 1Ø & 3ØSuction Lift: up to 25 ftConstruction: Close-coupled
Why Close-Coupled vs Frame-Mounted?
Close-coupled = motor shaft IS the pump shaft, single bearing on motor side. Pros: compact footprint, no coupling alignment, no separate base. Cons: motor failure means pump-out for service. Frame-mounted = separate motor + pump on common base, flexible coupling between. Pros: motor swap doesn't disturb pump, easier alignment service. Best for HVAC where motor changes are common. Baker 84000 is close-coupled — the right choice for irrigation, transfer, and dewatering where install simplicity matters.
89000 E-Series — Sprinkler Pump · 1 HP & 2 HP
Purpose-built for lawn irrigation and landscape watering. 1 HP and 2 HP configurations match typical residential sprinkler-zone demand (10–25 GPM at 35–50 PSI). Self-priming so you can mount above tank, pond, or stream. Built on the modern Baker E-Series platform — same engineering DNA as the 8300 jet pump.
Sprinkler Pump Sizing Quick Reference
Most residential sprinkler systems run zones of 5–10 heads each, drawing 1.5–4 GPM per head. A typical 4-head zone needs 6–12 GPM at ~40 PSI to deliver proper coverage — comfortably within the 89000 1 HP range. Larger zones, multiple zones running simultaneously, or impact-rotor heads requiring >50 PSI push you to the 2 HP version. Always size for peak demand zone, not average.
Specialty Multistage & Convertible
Baker 1500XSW & 8600SW
Two specialty centrifugal families that bridge between Baker's pump categories: the 1500XSW multistage for higher-pressure applications, and the 8600SW convertible for shallow well surface water duty.
1500XSW Multi-Stage — 1 HP & 1½ HP · 1Ø & 3Ø
Multistage centrifugal in cast iron housing with your choice of no-lead bronze or thermoplastic impellers. Trouble-free carbon-ceramic mechanical seal for years of maintenance-free operation. Available in 1 HP and 1½ HP, both single-phase and three-phase. The right choice for irrigation, sprinkling, and water transfer duty where higher pressure matters and you don't need a regulating valve.
8600SW — Convertible Self-Priming Centrifugal
A self-priming convertible centrifugal ideal for shallow wells, lakes, streams, and booster applications. Capacities up to 65 GPM and pressures to 40 PSI in ½ HP through 1 HP configurations. Bridges centrifugal and jet pump applications — think of it as a centrifugal where you'd otherwise use a shallow well jet, with higher flow capability.
When the 8600SW Beats a Jet Pump
If your application needs more than 25 GPM from a shallow lift source (lake, stream, cistern, or shallow driven point) AND you need self-priming capability, the 8600SW outflows any single-stage jet pump. The 65 GPM peak is roughly 2.5× the flow of a typical 8100 shallow well jet at the same HP. Pressure is lower (40 PSI vs 80 PSI), so this is for high-flow / lower-pressure duty: irrigation pickup, livestock watering, agricultural transfer.
Premium Brands · Davey Stocked · Xylem Available
Davey · Goulds Water Technology · Lowara
When the application calls for premium European stainless construction, packaged engineered systems, or commercial/industrial scale beyond Baker's residential and light-commercial focus, we bring in three premium brands.
Davey — Australian-Engineered Centrifugal
Davey HM Single-Stage
Compact horizontal centrifugal in cast iron or stainless. Pairs with Torrium² controller for smart constant-pressure operation.
→ Residential transfer / boost
Davey HP Multistage
2–6 stage horizontal centrifugal, all-stainless wet end. Quiet operation, premium service life. Workhorse for demanding home and small commercial.
→ High-pressure residential
Davey HS Premium Stainless
Premium horizontal multistage with all-stainless wet-end construction. Higher pressures, food-grade options, longer service life.
→ Premium / food-grade
Goulds Water Technology — American Industrial Heritage
Goulds e-SH End-Suction
Heavy-duty close-coupled and frame-mounted end-suction pumps. Up to 1,200 GPM. The standard for HVAC, irrigation, and large transfer applications.
→ High-flow industrial
Goulds GT Centrifugal
Self-priming centrifugal for pool, lawn sprinkler, and agricultural applications. ½–1.5 HP residential through commercial.
→ Self-priming residential
Goulds AquaForce VFD
Constant-pressure VFD system. Premium residential to light commercial. Pairs centrifugal pump with Yaskawa drive for smooth pressure delivery.
→ VFD constant pressure
Lowara — Italian Engineered Multistage
Lowara e-HM Horizontal
Horizontal multistage stainless, 0.5–5.5 HP, 3–22 stages. The European standard for high-pressure multistage centrifugal.
→ Commercial multistage
Lowara e-SV Vertical
Vertical multistage stainless. Compact footprint for plant rooms. High-pressure capability. Workhorse for packaged commercial booster sets.
→ Vertical multistage premium
Lowara BGM Booster Sets
Pre-engineered twin and triple pump booster sets with Hydrovar VFD controls. Up to 265 GPM. Hotels, apartment buildings, healthcare.
→ Packaged commercial sets
How to Quote a Lowara or Goulds System
Email sales@watermainsupply.com or call 281.664.8000 with: (1) Required flow (GPM); (2) Required head (feet) or discharge pressure (PSI); (3) Available power (120/230V 1Ø, 230/460V 3Ø); (4) Application (HVAC, irrigation, boosting, transfer); (5) Any spec sheet or engineer's submittal. We respond same business day with model recommendations and a complete package quote.
Sizing Reference
Centrifugal Pump Sizing Quick Guide
Centrifugal pump selection comes down to two numbers: required flow and required head. Get those right, then choose the right configuration (end-suction vs multistage vs self-priming) based on application.
Step 1 — Determine Required Flow (GPM)
| Application | Typical Flow | Notes |
|---|---|---|
| Residential pressure boost | 10–25 GPM | Match peak fixture demand using Hunter's Curve |
| Lawn sprinkler (per zone) | 10–25 GPM | 1.5–4 GPM × heads per zone |
| Field irrigation (¼ acre) | 30–60 GPM | Continuous duty — multi-stage or end-suction |
| HVAC chilled water (per ton) | ~2.4 GPM | Standard rule for 10°F ΔT cooling |
| Cooling tower makeup | 0.03 GPM/ton | Replace evaporation + drift + blowdown |
| Tank-to-tank transfer | 30–100 GPM | Time-driven — total volume ÷ allowable transfer time |
| Livestock watering (50 head) | 5–8 GPM continuous | Continuous-duty rated pump required |
Step 2 — Calculate Total Dynamic Head (TDH)
TDH = Static Lift + Friction Losses + Pressure at Discharge (all in feet of head; 1 PSI ≈ 2.31 ft)
Static lift = vertical rise from water source to dischargeFriction losses ≈ 1 ft per 100 ft of pipe (clean schedule 40)Sprinkler pressure ≈ 70 ft head (30 PSI working)Boost target ≈ 138 ft head (60 PSI)
Step 3 — Match Configuration to Application
High Pressure (> 80 PSI / 185 ft head)
Multistage. Single-stage centrifugal pumps lose efficiency above 80 PSI — multistage builds pressure across stages.
→ Baker 27000 · 1500XSW · Davey HP · Lowara e-HM
High Flow / Moderate Pressure
End-suction single-stage. Best efficiency for general transfer, HVAC, and irrigation at typical pressures.
→ Baker 92000/93000 · Goulds e-SH
Pump Above Water Source
Self-priming required. Built-in priming chamber retains water between cycles to maintain prime.
→ Baker 84000 · 89000 · 8600SW · Goulds GT
Variable Demand (Boosting)
VFD-driven multistage. Maintains constant pressure with energy efficiency. Premium choice for commercial.
→ Goulds AquaForce · Lowara BGM with Hydrovar
Continuous Duty / Industrial
Heavy cast iron, premium seals, frame-mounted preferred for service. Three-phase power.
→ Baker 93000 · Goulds e-SH frame
Aggressive / Corrosive Water
All-stainless construction. Bronze impeller for clean water; stainless wet-end for chemicals or chlorides.
→ Davey HS · Lowara e-HM SS · Goulds e-SH SS
Service & Replacement
Centrifugal Repair Parts & OEM Components
When a centrifugal pump fails in irrigation season or a commercial HVAC system, downtime is expensive. We stock the complete Baker repair parts catalog plus common Davey, Goulds, and Lowara service kits.
Impeller Kits
OEM impellers for Baker 27000, 92000/93000, 84000, 89000, 1500XSW, 8600SW. Bronze, Noryl, and stainless options matched to original specification.
→ Wear replacement
Mechanical Seal Kits
Carbon-ceramic mechanical seal replacement kits for all Baker centrifugal series. Replace at first sign of leak from drain port — ignored seals destroy bearings.
→ Most common service item
Volute Assemblies
Complete cast iron volute replacements when the pump body has cracked or been corroded beyond repair. Match pump series and HP.
→ Major repair
Repair Motors
NEMA square flange replacement motors for 92000/93000 Workhorse, 84000 self-priming, and other Baker centrifugal series. Direct OEM fit.
→ Motor failure
Mounting Bases & Brackets
OEM mounting bases, motor brackets, foot mounts, and hardware kits. Critical for drop-in replacement on existing installations.
→ Installation hardware
Gaskets, O-Rings, Hardware
Seal gaskets, suction port O-rings, motor adapter gaskets, drain port plugs, suction strainer screens. The small parts that nobody else stocks.
→ Routine service
Cross-Reference Any Pump — Send a Photo
Text or email a photo of the existing pump nameplate to sales@watermainsupply.com. We cross-reference any Baker, Davey, A.Y. McDonald, Goulds, or Lowara model number same-day and confirm the right replacement part. 281.664.8000.
Technical FAQ
Common Questions
What's the difference between end-suction and multistage centrifugal?
End-suction = single impeller, water enters axially and exits at right angle. Best for high-flow / moderate-pressure duty (HVAC, transfer, irrigation supply). Multistage = multiple impellers in series build pressure progressively. Best for pressure boosting and high-head applications above ~80 PSI. End-suction is more efficient at low head; multistage wins at high head.
When should I choose a self-priming centrifugal?
Whenever the pump must be mounted ABOVE the water source — drawing from a tank, lake, pond, stream, or shallow driven point where flooding the pump by gravity isn't possible. Self-priming pumps include a priming chamber that retains water between cycles to maintain prime. Maximum suction lift is ~25 ft (atmospheric pressure limit). Baker 84000, 89000 E-Series, and 8600SW are all self-priming.
How do I size a centrifugal pump for sprinkler irrigation?
Calculate peak zone demand: typical sprinkler heads use 1.5–4 GPM each at ~30 PSI working pressure, so a 5-head zone needs 7.5–20 GPM. Add 5 PSI for piping friction and 1 PSI per 10 ft of horizontal pipe over 100 ft. For a typical residential sprinkler system with 6-head zones, the Baker 89000 E-Series at 1 HP delivers correct flow and pressure. Larger zones, multiple zones running together, or impact-rotor heads requiring >50 PSI push you to the 89000 2 HP.
What are the flow codes (J, V, K, L, P, M) on the Baker 27000?
Each letter corresponds to a different impeller configuration optimized for a target nominal flow: J=5 GPM, V=7 GPM, K=10 GPM, L=15 GPM, P=20 GPM, M=25 GPM. Match the flow code to your peak demand first, then choose HP based on required boost pressure. Higher HP within each flow code = higher achievable PSI.
Should I buy a complete pump-and-motor or a bare pump end?
Complete pump-and-motor for new installations and standard replacements — factory-matched, single SKU, simpler ordering and warranty. Bare pump end when you have specialty motor requirements (explosion-proof, three-phase conversion, oversized HP), when you're replacing a pump on existing motor stock, or for a specific OEM build. The motor must match the pump end's HP, frame size, and shaft configuration — verify before ordering.
My centrifugal pump is losing prime. What's wrong?
Three most common causes: (1) Air leak on suction side — check fittings, foot valve, suction pipe joints. Air leaks anywhere upstream of the impeller will break prime. (2) Failed foot valve — water drains back to the source between cycles. Replace foot valve. (3) Suction lift too high — measured static lift exceeds 25 ft suction limit. Lower the pump or move to a submersible.
Can I run a centrifugal pump dry?
No. Running dry destroys the mechanical seal in seconds — the carbon-ceramic faces require water for cooling and lubrication. Dry running results in seal failure, which then leaks water into the bearings and motor. Always confirm prime before energizing. Self-priming pumps include a priming chamber with retained water — but if the chamber drains, the pump still cannot run dry. Add a flow switch or low-pressure cutoff for any application where dry running is possible.
What's the difference between bronze and Noryl impellers?
Bronze (no-lead) = cast metal, dynamically balanced, longest service life in clean water. Premium choice for residential potable water and clean industrial supply. Noryl = glass-filled engineering thermoplastic — corrosion-proof against most chemicals, dimensionally stable, balanced for low vibration. Better than bronze in chemically aggressive water (high chlorides, sulfur, mild acids). Lower cost. Choose bronze for clean water, Noryl for harsh water or budget-driven specs.
Do I need three-phase power for a centrifugal pump?
Below 3 HP, single-phase 230V works fine and is what most residential and light commercial sites have. 3 HP and above, three-phase becomes more efficient (lower current draw, cooler running, longer motor life) — and at 5 HP+ it becomes the practical standard. If your site has three-phase available, use it. If not, the Baker 92000 and 84000 series have 1Ø options up to 3 HP and 5 HP respectively.
What's NPSH and why does it matter?
NPSH (Net Positive Suction Head) = the pressure available at the pump's suction port above the water's vapor pressure. The pump's NPSHr (required) is published on the pump curve. NPSHa (available) must always exceed NPSHr — otherwise the pump cavitates, destroying the impeller and creating that "gravel in the pump" sound. NPSHa decreases with: higher static lift, longer suction pipe, higher water temperature, higher elevation. Critical for self-priming and any application with significant suction lift.
What's the warranty on Baker centrifugal pumps?
Baker provides a 1-year manufacturer warranty on all centrifugal pumps, with extended warranty options available. We register the warranty with Baker at the time of shipment so you're covered without paperwork. Premature failures should be reported through us — we coordinate the warranty claim and cross-ship a replacement when necessary to minimize your downtime.
Are you an authorized dealer?
Yes — Watermain Supply (DBA of E4 Industrial LLC) is an authorized dealer for Baker Water Systems, A.Y. McDonald, Davey, and Xylem (Lowara & Goulds Water Technology). All products ship factory-direct or from Houston stock with full manufacturer warranty.
Need Help Sizing a Centrifugal Pump?
Free application engineering with every quote. Same-day shipping on Baker, Davey, and A.Y. McDonald centrifugal pumps from Houston stock.
sales@watermainsupply.com
281.664.8000Free Sizing & Technical Support
sales@watermainsupply.comSame-Day Quote Response
Authorized DealerBaker · A.Y. McDonald · Davey · Xylem
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