DAB S4 4 in submersible well pump
DAB S4 4 in submersible well pumps with motor
DAB S4 4 in submersible well pumps with motor and control box
DAB S4 20 GPM performance curve, 60 Hz
DAB S4 4 in submersible well pump
DAB S4 4 in submersible well pumps with motor
DAB S4 4 in submersible well pumps with motor and control box
DAB S4 20 GPM performance curve, 60 Hz

DAB S4 20 GPM 4 in Submersible Well Pump - Multi-Impeller Stainless Borehole Pump, Tesla Motor

Model: S4 20/07 - 0.75 HP - 230V 1Ph
Motor: 2-Wire

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$544
SKU: 60198652
Weight : 29.4008 lb
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Description
DAB · 4 in Submersible Well Pump
S4 — 20 GPM
Three horsepower sizes, 0.75 HP to 1.5 HP, complete with a DAB Tesla 2-wire or 3-wire motor; 196 to 321 ft at shut-off.
20 GPM Nominal · 196-321 ft Max Head
0.75-1.5 HP
230V 1Ph · 2- or 3-Wire
1-1/4 in NPT
Sand Resistant
Built-In Check Valve
4 in Well Minimum
NSF/ANSI 61 and 372
3.9 in Dia x 25.5-36.8 in L
27.6-42.5 lb Weight
Overview

The DAB S4 20 GPM is a 4 in multi-impeller borehole pump for clean water, sold complete with a water-filled DAB Tesla motor. It lifts water from wells of 4 in diameter and up, or from tanks and cisterns, for homes, commercial buildings and garden or farm irrigation. Choose a 2-Wire build on the 4TW motor, which needs no control box, or a 3-Wire build on the 4GG motor with a separate control box. The same hydraulic end is listed on its own as the S4 pump end.

  • Sand resistant: technopolymer impellers in stainless steel adjustment rings.
  • Stainless hydraulics: liner, shaft, coupling, suction filter and cable guard in stainless steel; cast AISI 304 suction and discharge.
  • Built-in non-return valve, removable.
  • Water-filled Tesla motor with a removable CSA-approved cable connector.
  • VFD ready from 30 to 60 Hz.
What Ships and What It Needs to Run

Included: the S4 20 GPM pump end with its built-in non-return valve and a water-filled DAB Tesla motor, 4TW for 2-Wire builds or 4GG for 3-Wire builds, with its removable cable connector and lead, assembled as one complete pump.

4CBUS control box required on 3-Wire builds, ordered separately. The 4GG motor will not start without the DAB 4CBUS control box matched to its horsepower and voltage; the box for each build is in the table under Models & Performance. 2-Wire builds need no control box: the capacitor and thermal protector are inside the 4TW motor.

Drop pipe, drop cable and splice kit: sized to your setting depth and ordered separately.

Genuine DAB equipment, factory-new in original packaging — sold and supported by Watermain Supply, an independent industrial supplier. Watermain Supply is an Authorized Stocking DAB Distributor.
24-Month DAB Warranty

Covered for 24 months from the date of purchase under DAB’s published warranty terms, evidenced by the invoice or delivery document.

Specifications
Pump size 4 in; 3.9 in maximum diameter
Discharge 1-1/4 in NPT
Horsepower 0.75 to 1.5 HP (P2)
Motor DAB Tesla 4TW 2-wire or 4GG 3-wire, water-filled, NEMA 4 in
Power supply 1 x 230 V, 60 Hz
Maximum immersion depth 984 ft
Liquid temperature 32 F to 104 F
Maximum starts 20 per hour
Protection / insulation IP68 / Class F
Certification Pump end NSF/ANSI 61 and 372; 4TW and 4GG motors UL/CSA and NSF/ANSI 61 and 372
Models & Performance — Will It Do What You Need?

Find your horsepower in the row. Total head is the depth to the pumping water level, plus 2.31 ft for every PSI you want at the tank, plus drop-pipe friction. The two output tables below do that sum for a 30/50 PSI pressure switch.

Total head in feet, by flow

HP 0 GPM (Shut-off) 5 GPM 13 GPM 20 GPM 26 GPM
0.75 HP 196 ft 186 ft 166 ft 136 ft 100 ft
1 HP 263 ft 252 ft 216 ft 179 ft 120 ft
1.5 HP 321 ft 306 ft 260 ft 216 ft 140 ft

DAB prints flow at each depth and discharge pressure rather than a head-at-flow table (S4 Technical Sheet 60191756, p. 12). Each head here is the highest total head, depth plus DAB’s own foot equivalent of the pressure, at which DAB prints at least that flow, so it never claims more than DAB’s grid. 0 GPM is DAB’s printed shut-off; 26 GPM is the highest flow every build reaches; DAB prints flows to 26-28 GPM by model.

Output in GPM at 30 PSI (switch cut-in), by depth to pumping water

HP 40 ft 60 ft 80 ft 100 ft 120 ft 140 ft 180 ft
0.75 HP 24 21 16 11 — — —
1 HP — — 24 21 19 15 5
1.5 HP — — — 24 20 20 15

Output in GPM at 50 PSI (switch cut-out), by depth to pumping water

HP 40 ft 60 ft 80 ft 100 ft 120 ft 140 ft 180 ft
0.75 HP 17 8 — — — — —
1 HP 23 20 18 15 8 — —
1.5 HP — 23 21 20 16 14 8

As printed in the DAB S4 Technical Sheet (60191756), p. 12, at the 30 and 50 PSI rows. DAB’s figures exclude drop-pipe friction and are for a pump without check valve. — = DAB prints no figure there.

3-Wire control box by horsepower (ordered separately; 2-Wire builds need none)

HP Voltage DAB 4CBUS control box
0.75 HP 230V 1Ph 60174731
1 HP 230V 1Ph 60174732
1.5 HP 230V 1Ph 60174733 (Basic) or 60174737 (Plus, adds a line contactor)

Enter your water level, pipe run and pressure. The calculator shows which DAB pumps cover the duty, with the headroom on each.

Before You Buy — The Limits That Decide the Fit
Well 4 in minimum diameter, or a tank or cistern
Water Clean and non-aggressive; sand up to 150 g/m³
Water temperature 32 F to 104 F
Motor wiring 2-Wire: no control box. 3-Wire: DAB 4CBUS control box required (table above)
Power 230 V single phase
Not included Drop pipe, drop cable and splice kit; the control box on 3-Wire builds
Installation Notes
  • Install vertically. Horizontal installation is possible; DAB recommends a cooling sleeve for it.
  • Allow no more than 20 starts per hour.
  • The Tesla motors run on a variable frequency drive from 30 to 60 Hz.
  • The motor lead plugs in through a removable cable connector, so a damaged lead is replaced without opening the motor.

From the DAB S4 Technical Sheet (60191756) and S4 Quick Guide (60192664).

Applications

Residential and commercial water supply from boreholes, pressure boosting, garden and agricultural irrigation, and tank or cistern installations.

Materials of Construction
Suction and discharge Precision cast stainless steel AISI 304
Impeller Technopolymer
Diffuser Technopolymer
Stage housing Technopolymer with stainless steel wear ring
Outer sleeve Stainless steel AISI 304
Shaft with coupling Stainless steel AISI 304
Non-return valve Technopolymer, poppet type
Bush bearing Rubber, TPU
Cable sheath Stainless steel AISI 304
Suction filter Stainless steel AISI 304

Parts in contact with the water, from the S4 Technical Sheet (60191756), p. 3.

Accessories
Accessory Code Description
Tesla 4CBUS control box By HP, table above Required on 3-Wire builds
Cable connector kit, 4TW 60141970 Replacement 6 ft 3 x 14 AWG lead, 2-Wire motor
Cable connector kit, 4GG 60141967 / 60141968 / 60141969 Replacement 6, 9 or 11 ft 4 x 14 AWG lead, 3-Wire motor
Service Parts
Part Code Fits
S4 20 pump end 60198627 / 60198628 / 60198629 20/07, 20/10, 20/15, in HP order
Tesla 4TW 2-wire motor By HP on the motor listing 2-Wire builds
Tesla 4GG 3-wire motor By HP on the motor listing 3-Wire builds
For engineering-led sizing and selection support or a factory submittal, email sales@watermainsupply.com or call 1-888.510.4036.
© Watermain Supply — A division of E4 Industrial LLC
Data Sheet
S4 Technical Sheet, USA 60 Hz (60191756) S4 US Specifications S4 Quick Guide (60192664) NSF/ANSI 61 Certificate - S4 Range NSF/ANSI 372 Certificate - S4 Range
Videos
Product Videos

S4 - DAB Pumps

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