DAB submersible pumps for wells, tanks and cisterns. The S3 fits a 3 in casing at 5, 10 or 15 GPM nominal; the S4 is the 4 in workhorse, 5 to 25 GPM complete with a water-filled Tesla motor in two-wire or three-wire form. For a tank or cistern, the DTron and Esybox Diver carry their own pressure control, expansion tank and check valve โ no pressure tank, switch or tank tee to install. Sand-resistant technopolymer and stainless throughout, NSF/ANSI 61 and 372, drive-ready 30 to 60 Hz. Engineering-led sizing against the published curve on every enquiry. Call 1-888.510.4036.
DAB DTron 3 Submersible Pressure Pump - 7 in Electronic Well Tank and Cistern Pump, Integrated Tank, DConnect Ready
Price
$1,614
DAB Submersible Well Pumps
DAB Pumps ยท Submersible Well and Tank Pumps
DAB Submersible PumpsS3 ยท S4 ยท DTron ยท Esybox Diver
Sand-resistant stainless borehole pumps for 3 in and 4 in wells, and electronic tank pumps that carry their own pressure control. Sized here against DAB's published curve, not a headline number.
3 & 4 inWell Diameters
To 35 GPMCharted Flow
To 810 ftHighest Shut-Off
0.5 to 1.5 HPComplete Pumps
1-888.510.4036Talk to a Person
DAB Pumps is an Italian manufacturer with a US operation in Ladson, South Carolina. Its groundwater range puts one sand-resistant platform into two borehole diameters โ technopolymer impellers running in stainless steel adjustment rings, a stainless liner, shaft, coupling, suction filter and cable guard, micro-cast AISI 304 supports, and a non-return valve built into the pump end. The pump ends are NSF/ANSI 61 approved and the water-filled Tesla motors are UL and CSA listed and rated for variable frequency drive operation from 30 to 60 Hz. Alongside them sit the DTron and the Esybox Diver: 7 in electronic pumps with the pressure control and the check valve inside the pump, for a tank or a cistern where a conventional pump would need a tank tee and a pressure switch.
This page carries the US 60 Hz range with the correct voltages, two-wire and three-wire builds, and every published duty point we hold, so you select on numbers rather than a maximum. Run the sizing calculator below, or send the well depth, the pumping water level and the flow and pressure you need to sales@watermainsupply.com and we will size it and tell you if a different brand fits better. Genuine DAB equipment, factory-new in original packaging โ sold and supported by Watermain Supply, an independent industrial supplier.
The Range โ Four Platforms, One Water System
Pick by where the water is and how wide the hole is. Everything else follows.
DAB S3
3 in complete submersible
9 Models3 in Casing5 / 10 / 15 GPMTo 538 ft
The pump for a narrow bore. A 3 in multistage submersible on a two-pole AISI 304 stainless canned motor, always two-wire, so there is nothing at the wellhead but the pump. Most 4 in ranges simply cannot go down a 3 in casing.
Nine models: 5, 10 and 15 GPM nominal at 0.5, 0.75 and 1 HP
Shut-off 538 ft (S3 5/10), 490 ft (S3 10/10), 332 ft (S3 15/10)
230 V single phase, two-wire, no control box
Kingsbury self-centering thrust block
Maximum immersion 490 ft; 1-1/4 in NPT
Best for3 in drilled or driven wells, small-bore replacements, residential pressurisation and garden irrigation.
The 4 in workhorse, supplied complete with a water-filled Tesla motor in two-wire or three-wire form. Six nominal sizes, each in several stage counts, so you buy head by stages rather than by oversizing the motor.
5, 7, 10, 15, 20 and 25 GPM nominal, 0.5 to 1.5 HP
Two-wire 4TW needs no control box; three-wire 4GG takes a 4CBUS
115 V on 0.5 HP only; everything above is 230 V
Maximum immersion 984 ft; 1-1/4 in NPT
Same hydraulics continue as bare pump ends to 90 GPM and 10 HP
Best forStandard 4 in residential and light-commercial wells, ranch and stock water, irrigation, pressure boosting.
Drop it in the tank, plug it in, open a tap. An integrated pressure switch, flow switch and electronic board start and stop the pump on demand, dry-running protection shuts it down before it runs dry, and the expansion tank inside the pump takes the water hammer.
Two ranges: 45/90 and 35/120, both 0.9 HP
Cut-in 35 PSI; DTron 3 adds an adjustable start pressure via the Com Box
Suction height adjustable to 3.1 in off the tank floor
NSF 61, 372, UL and CSA; DOC68 accessory for surface use
Best forCisterns, rainwater harvesting, storage tanks, wide wells, and any job where a pressure tank and switch would be one more thing to install and maintain.
A multistage submersible with the inverter inside it. It holds the pressure you set instead of cycling between cut-in and cut-out, which is why the published curve runs flat at 180 ft out to 12 GPM. Both come with the DConnect Box 2 for app monitoring. The Diver X adds Kit X: a floating suction hose and float that draw from just under the surface, so tank-floor sediment stays put.
Constant pressure, preset 43 PSI, adjustable 14 to 80 PSI
Flat 180 ft to 12 GPM; maximum flow 31.7 GPM
Non-return valve and 0.04 L vessel; DAB recommends an additional pressure tank
NFC pocket for a float without breaking the seal
1-1/4 in NPT, 220-240 V
Best forA house or a building fed from a cistern or a wide well that wants constant pressure at the tap. Take the X where the tank collects silt.
The four platforms against the questions that actually decide it.
DAB S3
DAB S4
DTron 2 / 3
Esybox Diver / X
Where the water is
Drilled well
Drilled well, tank or cistern
Tank, cistern or wide well
Tank, cistern or wide well
Minimum bore
3 in
4 in
8 in
8 in
Models here
9
21 complete
2 ranges x 2 pumps
2 pumps
Charted flow
To 18 GPM
To 35 GPM
To 34 GPM
To 31.7 GPM
Charted head
To 538 ft
To 810 ft shut-off
To 146 ft
To 180 ft
Motor
0.5 to 1 HP, 230 V, two-wire
0.5 to 1.5 HP, 115 / 230 V, two or three-wire
0.9 HP, 115 V plug
1.3 HP, 230 V
Control box
None
Only on three-wire
None
None
Pressure control
External switch and tank
External switch and tank
Built in, 35 PSI cut-in
Built in, constant pressure
Start here when
The casing is 3 in
The casing is 4 in
You can see the water and want on-off demand
You can see the water and want steady pressure
Quick ruleCasing 3 in: the S3, and nothing else here. Casing 4 in: the S4, sized by stages to the head. Water you can see โ a tank, a cistern, a wide bore โ and you want pressure without a pressure tank: DTron for on-off demand, Esybox Diver for constant pressure. Past 25 GPM as a complete pump, the same S4 hydraulics are built as bare pump ends in the motors, pump ends and controls collection. The calculator below does this sort for you.
DAB Submersible Sizing Calculator
Estimating tool for this collection only. It works out your peak demand and your total head, then shows which pumps on this page cover it and the headroom on each. Not a selection: we confirm every pump against the DAB curve before it ships.
Step 1 ยท What the System Has to Deliver
Fixture counts run through the same fixture-unit and probability figures used by the plumbing codes, so a four-bathroom house does not get sized as if every tap opened at once.
Peak, not average
Step 2 ยท Where the Water Is
Size on the pumping water level, never the static level. If you do not have a drawdown figure, leave 20 ft in and have the driller test it.
Pump off for an hour or more
Lowest level of the year
Step 3 ยท Where the Water Goes
Size the head at the pressure switch cut-out, not the cut-in: a 30/50 switch is a 50 PSI duty.
Zero for an open tank or trough
Change any figure and press Size It again โ the result updates in place. Start Over clears it and puts the defaults back. If nothing happens at all, email the numbers to sales@watermainsupply.com and we will run them.
Peak DemandโGPM
Total Dynamic Headโft
Duty vs Shut-OffโKeep under 70 %
Best MatchโDAB Model
Head term
Value
Where it comes from
Candidate
Family
Motor
Charted at this head
Your flow, % of max
% of shut-off
Method: peak demand from fixture units through the probability curve, or from the irrigation volume spread over the watering window. Total head = pumping water level + rise + Hazen-Williams friction in the service line and drop pipe with a 20 % fitting allowance + cut-out PSI x 2.31. Capability comes from DAB's published 60 Hz tables, read at the head you entered; a curve is never extrapolated past the last head DAB charts. Well yield, water chemistry and drop-pipe sizing are not modelled.
Performance โ Documented Duty Points
What DAB publishes, and nothing else. 1 ft of water is 0.433 PSI; 1 PSI is 2.31 ft.
Every figure is a cell from DAB's published 60 Hz table, at zero discharge pressure, so the head is the depth to the pumping water level. A dash means DAB publishes nothing at that head for that model โ not that the pump stops. Shut-off is the head at no flow: a ceiling, never a working point. Drop-pipe friction is not included. Curve tolerance to ISO 9906.
S3 โ head added at each flow
Model
HP
Stages
0 GPM
2 GPM
4 GPM
6 GPM
8 GPM
10 GPM
12 GPM
14 GPM
16 GPM
18 GPM
S3 5/05
0.5
24
362
342
304
244
165
70
โ
โ
โ
โ
S3 5/07
0.75
29
440
422
375
302
208
90
โ
โ
โ
โ
S3 5/10
1
35
538
524
464
368
242
106
โ
โ
โ
โ
S3 10/05
0.5
21
320
304
286
260
224
174
110
36
โ
โ
S3 10/07
0.75
27
420
394
366
334
290
230
150
50
โ
โ
S3 10/10
1
31
490
462
436
400
348
270
180
60
โ
โ
S3 15/05
0.5
8
134
132
130
125
118
110
98
84
64
35
S3 15/07
0.75
16
260
258
250
242
230
212
188
154
110
52
S3 15/10
1
21
332
330
320
310
292
268
236
194
138
60
Head added in feet at each flow, as DAB publishes it. The 0 GPM column is the shut-off head. The S3 5 is charted to 10 GPM, the S3 10 to 14 GPM and the S3 15 to 18 GPM. 1 PSI is 2.31 ft.
DTron and Esybox Diver โ head added at each flow
Model
HP
Control
0 GPM
4 GPM
8 GPM
12 GPM
16 GPM
20 GPM
24 GPM
28 GPM
32 GPM
DTron 2 / 3 ย 45/90
0.9
Pressure and flow switch
147
138
124
104
79
53
25
โ
โ
DTron 2 / 3 ย 35/120
0.9
Pressure and flow switch
125
122
111
98
85
69
52
30
8
Esybox Diver / Diver X
1.3
Variable speed inverter
180
180
180
180
173
130
82
37.3
โ
Head added in feet. The DTron figures are the DAB 60 Hz curve; the DAB US sheet puts maximum head at 134 ft on the 45/90 and 146 ft on the 35/120, and the lower of the two is what we quote. The Diver is variable speed: it holds 180 ft flat to 12 GPM because the inverter is holding pressure, not because the curve is flat, and any setpoint below that is settable.
Control Boxes โ Which Pumps Need One, and Which Do Not
The question that costs the most time on a job, answered in one table. A three-wire pump without its box will not start; a two-wire pump has nothing to plug a box into.
Pump
Motor
Control box?
What you order
Notes
S3, all nine models
Two-pole AISI 304 canned, 230 V
No
The pump, and nothing else
Two-wire only. Capacitor and overload are inside the motor.
S4 โ 2-Wire
DAB Tesla 4TW, 0.5 to 1.5 HP
No
The pump, and nothing else
Built on two-wire technology with an internal capacitor and thermal protector. Simplest install; 115 V offered on 0.5 HP only.
The box mounts at the tank, not the well, so a failed start component is reachable without pulling the pump. Basic and Plus versions.
S4 โ three phase
DAB Tesla 4GG, 230 or 460 V 3Ph
No box
Pump plus installer-supplied motor protection
DAB states that on the three-phase version the protection must be guaranteed by the user. A starter or drive with correct overload is required.
DTron 2 and DTron 3
Integrated electronic board
No
The pump, and nothing else
Pressure switch, flow switch and dry-running protection are inside the pump, with an integrated expansion tank. No pressure tank, tank tee or switch to buy.
Esybox Diver
Integrated variable speed inverter
No
The pump, with the DConnect Box 2
Holds a constant pressure set from 14 to 80 PSI. DAB recommends a small additional pressure tank.
Esybox Diver X
Integrated variable speed inverter
No
The pump, the DConnect Box 2 and Kit X
Same pump as the Diver, plus a floating suction hose and float that draw from just under the surface.
How to read the model numberA DAB model like S4 15/10 is the platform (S4, 4 in), the nominal flow in GPM (15) and the motor size in horsepower times ten (10 = 1 HP). So S4 15/10 is a 4 in pump, 15 GPM nominal, 1 HP. The S3 reads the same way. More stages at the same nominal flow means more head, not more flow.
What else goes down the holeDrop pipe and a torque arrestor, a safety rope, splice kit and drop cable sized to the run, a pitless adapter or well seal, and a pressure tank sized to the cut-in and cut-out you set. On a three-wire build, the control box mounts near the tank, not at the well. On a DTron you need none of it: discharge pipe, a float or low-level cut-out, and power. On an Esybox Diver, add the small pressure tank DAB recommends.
Who Buys These, and What For
This range sells to six kinds of buyer on the Gulf Coast, and they want different things from it.
Water well contractors and drillers
You want a pump that goes in the hole once. Two-wire for the simple sets, three-wire where the box saves a pull, stainless and technopolymer where the water carries grit, and a supplier who answers the phone with a curve rather than a catalogue page. We quote the pump, the motor and the box together so nothing shows up missing on install day.
Rural homeowners on a private well
Your pump failed and the house has no water. You need the right replacement today, not the biggest one someone has to hand. Tell us the well depth, what is on the tag of the old pump and how many bathrooms you run; the calculator on this page gets you close and we confirm it.
Ranch and livestock water
Long runs, distant troughs, and a well that has to fill a tank rather than hold pressure. The S4 sized for the pumping level does it, and the 20 and 25 GPM sizes move real volume at modest head. Storage in a tank beats horsepower every time.
Growers and irrigators
Sizing is a duty point, not a maximum: gallons per week over the hours you can water, at the head the mainline and emitters actually need. Sand resistance matters most here, because irrigation wells run long hours.
Rainwater harvesting and cistern systems
This is where the DTron and the Esybox Diver earn their keep. No tank tee and no pressure switch โ the DTron carries its tank inside it, and the Diver holds constant pressure so the shower does not change temperature when someone flushes. The Diver X draws from just under the surface, away from the silt.
Property managers and small systems
RV parks, small community wells, agricultural buildings and light commercial. You want a line to standardise on and a drive-ready motor, so constant pressure can be added later without changing the pump.
Why a DAB Submersible
Six reasons this range wins work, and one case where it does not.
3 in and 4 in on one platform
The S3 goes down a 3 in casing that most 4 in ranges cannot enter, and it shares its hydraulic design, its certification and its sand resistance with the S4. One line covers the narrow bore and the standard one.
Sand resistance as standard, not an option
Technopolymer impellers running in stainless steel adjustment rings, with a stainless wear ring in the stage housing. Grit passes instead of scoring the stage. On brass and cast iron that same grit is what ends the pump.
Head by stages, not by horsepower
Each nominal size is built in several stage counts, so you buy the head you need on the smallest motor that makes it. That is less current, less heat and a smaller drop cable.
Drive-ready from the start
Every Tesla motor is rated for variable frequency drive operation from 30 to 60 Hz. Add constant pressure in two years without pulling the pump.
The check valve is already in it
A removable non-return valve is built into the pump end, so there is no separate inline check to buy, install or have fail.
Electronic tank pumps a well line usually lacks
Most borehole ranges stop at the well. DAB also builds the DTron and the Esybox Diver, so a cistern job is one product instead of a pump plus a tank plus a switch plus a vessel.
When a DAB is not the answerIf you need a US-built pump, a choice of wetted material for aggressive water, or flow past what a 4 in pump can make, say so โ A.Y. McDonald and Baker cover that ground and we sell them too. If the water is corrosive or hot enough to want 316 or 904L stainless, that is a Grundfos SP conversation. The comparison is below, written honestly.
How to Size a Submersible Well Pump
Five steps. Do them in this order and the pump lasts.
1. Peak flow, not average
A house is sized on fixture units through the probability curve, not on the sum of every tap. Irrigation is sized on the volume you must apply divided by the hours you can water. Take the larger of the two, not the sum, unless they genuinely run together.
2. Pumping water level
Static level plus drawdown at your flow. Sizing on the static level is the single commonest error, and it shows up as a pump that loses prime in August.
3. Total dynamic head
Pumping level + rise to the highest outlet + friction in the drop pipe and service line + cut-out pressure at 2.31 ft per PSI. Friction is not a rounding error: 50 GPM down 400 ft of 1-1/2 in pipe costs more than 80 ft of head.
4. Pick the stage count
Find the models that make your flow at that head, then take the one that leaves about a quarter of its capacity in hand โ enough margin for a weak well test or a hot August, not so much that you buy a motor you do not need. On a multistage borehole pump the duty point sits high on the curve by design; that is what buying stages does, and it is not a fault.
5. Check the well, then the electrics
The pump must not outrun the well's yield: set it above the screen, leave water over it, fit a low-level cut-out. Then two-wire or three-wire, 115 V or 230 V, the control box if it is three-wire, and drop cable sized so the voltage at the motor is what the nameplate expects.
Worked example โ a two-bathroom house on a 4 in wellTwo full baths, a kitchen, laundry and a hose bib come to about 12.5 fixture units, which the probability curve puts near 9.5 GPM peak. Static level 100 ft with 20 ft of drawdown gives a 120 ft pumping level; add 10 ft of rise, about 4 ft of friction in 100 ft of 1-1/4 in service line plus the drop pipe, and 50 PSI of cut-out at 2.31 ft per PSI, which is 116 ft. Total is about 249 ft. DAB charts the S4 10/15 at 12 GPM there, so 9.5 GPM is 79 % of what it can do and there is a quarter in hand. The S4 15/15 and the S3 15/10 also cover it. That is the default case in the calculator.
Selection Guide
Start here, then confirm the duty point against the curve.
If the motor still meggers good, a new end goes back on it.
What Makes These Pumps Different
The engineering shared across the range, and why it matters in the hole.
Sand resistant construction
Technopolymer impellers housed in stainless steel adjustment rings, with a stainless steel wear ring in the stage housing on most builds. DAB marks the S3 and S4 SAND RESISTANT on its own data sheets.
Stainless hydraulics
Liner, shaft, coupling, integrated suction filter and cable guard in stainless steel, with micro-cast AISI 304 suction and delivery supports.
Water-filled Tesla motor
A Kingsbury self-centering thrust block cooled and lubricated with water and glycol, built to carry high axial load over a long life. All wetted parts of the 4GG and 4TW are SS304. A removable check valve sits in the pump end, so there is no separate inline check to add.
Drinking water certified
NSF/ANSI 61 pump ends, UL and CSA listed motors, and NSF/ANSI 372 for lead content. The DTron and Diver are approved to NSF 61, 372, UL and CSA. Every motor is rated for drive operation from 30 to 60 Hz.
Serviceable by design
Removable CSA-approved cable connector on the S3, modular disassembly of hydraulics, motor, electronics and filter on the DTron, and bare pump ends available so a worn end does not condemn a good motor.
DAB Against Baker and Grundfos
We carry all three, so here is the honest split. Competitor figures come from our own product listings for those lines; confirm the exact model against the manufacturer booklet.
DAB vs A.Y. McDonald and Baker Water Systems
Specification
DAB S3 / S4
A.Y. McDonald / Baker
Origin
Imported, Italy; US operation in Ladson, SC
US built
Well diameters
3 in and 4 in on one platform
4 in, plus 6, 8 and 10 in pump ends
Flow range
5 to 35 GPM complete; to 90 GPM as pump ends
5 to 80 GPM in 4 in; 90 to 1,100 GPM large bore
Wetted materials
Technopolymer and AISI 304 stainless
No-lead brass, thermoplastic or stainless
Motor range
To 1.5 HP complete, to 10 HP on pump ends
To 250 HP in 10 in
Two-wire option
Yes, on the S3 and every 2-Wire S4
Yes, on the 4 in range
Relationship
Sold and supported
Authorized stocking distributor
VerdictWhere Baker wins: a domestically built pump, a choice of wetted material โ silicon bronze for aggressive water, thermoplastic for cost, stainless for wear โ and the deepest large-diameter range for municipal and agricultural flow. Watermain Supply is an Authorized Stocking A.Y. McDonald and Baker Water Systems Distributor. Where DAB wins: a 3 in pump Baker does not build, sand-resistant technopolymer hydraulics as standard, stage-by-stage head selection, and better value on a standard residential 3 in or 4 in well.
DAB vs Grundfos SQ and SP
Specification
DAB S3 / S4
Grundfos SQ / SP
Origin
Imported, Italy
Imported, Denmark
3 in line
S3, 5 to 15 GPM nominal
SQ, permanent magnet, 5 to 30 GPM
4 in line
S4, 5 to 25 GPM complete
SP, ten hydraulic sizes
Horsepower
0.5 to 1.5 HP complete; to 10 HP as pump ends
SQ to about 3 HP; SP 3/4 to 10 HP, single and three phase
Materials
AISI 304 stainless and technopolymer
AISI 304 standard; 316 and 904L options
Motor electronics
Conventional induction, drive-ready 30 to 60 Hz
SQ has soft start and dry-run protection in the motor
Positioning
Value tier, sand resistant
Premium industrial and groundwater
VerdictWhere Grundfos wins: optional 316 and 904L stainless and special elastomers for corrosive or hot groundwater, a permanent-magnet 3 in SQ with soft start and dry-run protection built into the motor, and a broader high-head SP map for demanding waterworks. Where DAB wins: 3 in and 4 in on one platform, the same sand-passing design a tier down on price, and a two-wire option that needs no control box at all. Both are imported stainless pumps โ the decision is build tier and budget, not country of origin.
Why Source Your Pump From Watermain Supply
Engineering-led sizing
Pumping level, rise, friction and cut-out pressure worked out against the published curve before anything ships, and we will tell you when a smaller pump does the job.
Multi-brand honesty
We also supply A.Y. McDonald, Baker and Grundfos submersibles. If a DAB is not the right fit for your well, we will say so and quote the one that is.
The whole build on one order
Pump, motor, control box, drop cable and the accessories that go with them, matched to each other rather than assembled from three suppliers.
The US build
60 Hz, NPT threads, the correct voltages and the DAB US part numbers โ not an international model that happens to look the same.
Account terms
Contractors, drillers, ranches and municipalities can buy on account. Ask when you call.
Houston and the Gulf Coast
An engineering-led supplier based in Houston, serving the Gulf Coast, with parts and aftermarket backing rather than a drop-ship desk.
Questions Buyers Ask
If yours is not here, call. Sizing conversations are the part of this we are good at.
Which DAB submersible fits a 3 in well?
The S3. It is 2.91 in in diameter and DAB rates it for 3 in casing and larger, in 5, 10 and 15 GPM nominal at 0.5 to 1 HP, 230 V two-wire. Every S4 needs 4 in casing or larger. If your driller logged a 3 in bore, the S3 is the only pump on this page that goes down it.
Do I need a control box?
Only on a three-wire S4. Two-wire S4 pumps run a 4TW motor with the capacitor and thermal overload built in, so there is no box. Three-wire S4 pumps run a 4GG motor and need the matching DAB 4CBUS control box, sized to the horsepower and voltage. The S3 is two-wire only and needs no box. The DTron and Esybox Diver carry their own electronics and need no box, no pressure switch and no tank tee.
Two-wire or three-wire โ which should I buy?
Two-wire is the simpler install: two conductors and a ground, nothing at the wellhead but the pump. Three-wire puts the starting components in a box you can reach without pulling the pump, so a failed capacitor is a twenty-minute fix rather than a rig day. Above 1.5 HP, DAB builds the S4 three-wire only.
What is the difference between the DAB S3 and S4?
Well diameter first. The S3 is a 3 in pump at 5, 10 and 15 GPM nominal, 0.5 to 1 HP, always two-wire on a stainless canned motor. The S4 is the 4 in workhorse, 5 to 25 GPM nominal as a complete pump at 0.5 to 1.5 HP, in two-wire or three-wire, and the same hydraulics carry on as bare pump ends to 90 GPM and 10 HP. Both share the sand-resistant technopolymer and stainless construction and both carry an NSF/ANSI 61 pump end.
115 V or 230 V?
DAB supplies the 115 V build on 0.5 HP only, on the S4 5, 7, 10 and 15 GPM sizes. Everything above that is 230 V single phase. The DTron and Esybox Diver are 115 V. Confirm the service at the well before ordering โ it is the commonest reason a pump goes back.
How deep can these run?
The deepest complete pump on this page, the S4 5/15, is charted to 810 ft of shut-off head and delivers 6.5 GPM at 400 ft. Maximum immersion is 984 ft for the S4 on a 4GG or 4TW motor and 490 ft for the S3. Past that, the same S4 hydraulics are built as pump ends to 10 HP.
Can I put a submersible in a tank or a cistern?
Yes, and DAB gives you two ways. An S4 or S3 will run in a tank with a pressure tank, switch and low-level cut-out. Or take a DTron or an Esybox Diver, which carry the pressure control and the check valve inside the pump โ you drop it in, plug it in and it starts and stops on demand. The DTron's expansion tank replaces a pressure tank; on the Diver, DAB recommends a small one.
What is the difference between the Esybox Diver and the Diver X?
Same pump, same curve, and both come with the DConnect Box 2. The X adds Kit X: a 3.3 ft floating suction hose and float on a threaded inlet, so the pump draws the clean water just under the surface instead of the silt on the tank floor. Take the X for a rainwater tank or cistern that collects sediment; take the Diver for clean water.
DTron 2 or DTron 3?
Both are 7 in electronic pumps with an integrated expansion tank and dry-running protection, in the same two hydraulic ranges. The DTron 3 adds a built-in pressure sensor and flow meter with an adjustable starting pressure set through the Com Box supplied as standard, and it accepts the NFC water-level accessory. The DTron 2 has a fixed 35 PSI cut-in.
Do these pumps handle sand?
DAB builds the S3 and S4 to its SAND RESISTANT specification: technopolymer impellers running in stainless steel adjustment rings, with a stainless wear ring in the stage housing, so grit passes instead of scoring the stage. No pump replaces a properly developed well โ if your water carries visible sand, tell us and we will talk about screen and setting depth first.
Will these run on a variable frequency drive?
Yes. DAB rates the S3 and the S4 Tesla motors for drive operation from 30 to 60 Hz, so the same pump can hold constant pressure on a drive later without replacing it. The Esybox Diver already has the drive inside it.
Are they approved for drinking water?
The S3 and S4 pump ends are NSF/ANSI 61 approved and the 4GG and 4TW motors are UL and CSA listed to NSF/ANSI 61 and 372. The DTron and Esybox Diver are approved to NSF 61, 372, UL and CSA.
Ready to Size Your Pump
Send the well depth, the static level and drawdown, the flow you need and the pressure you want at the tank. We come back with the pump, the motor, the control box if you need one, and the reasoning.
Technical data on this page is taken from DAB Pumps US 60 Hz product literature and from our own product listings for the brands compared, and is subject to change by the manufacturer. Confirm against the current installation manual before specifying. Estimating figures from the calculator are not a selection.
DAB, Tesla, DTron, Esybox, Esybox Diver and DConnect are trademarks of DAB Pumps S.p.A.; Grundfos, SP and SQ are trademarks of Grundfos Holding A/S; A.Y. McDonald is a trademark of A.Y. McDonald Mfg. Co. and Baker Water Systems is a trademark of Baker Manufacturing Company โ all used here for product identification only.
Watermain Supply is a DBA of E4 Industrial LLC, an independent industrial supplier based in Houston, Texas.
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