4STM Series 4" Inch Bore Pumps

The 4STM series 4" bore pumps are ideal for deep well bore applications for water transfer where a 4" pump is needed. The 4STM pumps feature a stainless steel outer shell wet end and shaft with PPO impellers and diffusers, stainless steel motor coupling flange and an incorporated non-return check valve.

Supplied complete with motor and surface mounted control box which incorporates: Run capacitor, isolator switch and manual reset overload.

Pump Recommendations: 

* Non Return Valve
* MP-S1 Plus Pump Controller for pump protection
Please see dropdown menu for option and more information below: 
MP-S1 Plus Controller 

Specifications:

* 220-240 Volts
* Single Phase
* Outlet: 40mm/1 1/2"

 Flow vs Head

Model	hp	kW	LPM	0	10	20	30	40	50	60	70	80	90
4STM4/7	0.7	0.5	Head(m)	45	43	41	38	37	34	30	27	23	19
4STM4/9	1.0	0.7	Head (m)	57	55	53	50	47	44	39	35	30	24
4STM4/14	1.5	1.1	Head (m)	90	86	82	77	74	68	61	54	47	38
4STM4/18	2.0	1.5	Head (m)	115	111	106	100	95	88	79	70	61	48
4STM4/27	3.0	2.2	Head (m)	173	167	159	150	143	132	118	105	91	73

Pump Features:

* Maximum Pump OD: 97mm
* Maximum Water temperature: 35°C
* ph6.5-8.0
* Stainless Steel outlet
* Comes with 35m of cable

Motor Features:

* Max thrust: 1500N
* IP68 motor protection
* Insulation: Class F
* Service factor: S1
* Minimum cooling speed: 8 CM/S
* RPM: 2800
* Dielectric Oil Filled
* Exterior Shell and clamping system: AISI 304
* Maximum starts per hour: 30
* Maximum immersion: 80m 

1 Year Back to Base Warranty