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Home Deep well submersible pump 3ST submersible 3-inch pumps 3STM1.8/20
3STM1.8/14
3STM1.8/14
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3STM1.8/27
3STM1.8/27

3STM1.8/20

Technical data
Single phase: 0.18KW to 1.5KW
Three phase: 0.18KW to 1.5KW
Voltage: 220V or 380V
Insulation: B
Protection grade: IP68
Max liquid temperature: 35°C
Connection and coupling size: according to Company standard
Motor casing: SUS201 or SUS304

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Categories: 3ST submersible 3-inch pumps, Deep well submersible pump
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  • Description
  • Characteristics
  • Documentation
Description

Applications

For water supply from wells or reservoirs
For domestic use, for civil and industrial applications
For garden use and irrigation

Operating conditions

Maximum fluid temperature: +35°C
Maximum sand content: 0.25%
Maximum immersion: 80m
Minimum well diameter: 3”

Motor and pump

Rewindable motor or full oil-submersed screen motor
Three-phase: 220V/380V/50Hz
Single-phase: 220V/50Hz
Equip with start control box or digital auto-control box
Pumps are designed by casing stressed
Comply with dimension standards
Curve tolerance according to ISO 2548

Warranty: 1 year


Warranty

Components

Diffuser Cover/PC

Diffuser Cover/PC
Impeller/POM

Impeller/POM
Diffuser/PC

Diffuser/PC
Outlet/H57

Outlet/H57
Connector/H57

Connector/H57
Top Chock/H57

Top Chock/H57

Materials of Components

Components Material
Pump external casing ① AISI 201 SS ② AISI 304 SS
Outlet ① Cast-Cu ASTM280 ② AISI 304 SS ③ Cast- iron
Connector ① Cast-Cu ASTM280 ② AISI 304 SS ③ Cast- iron
Diffuser Plastic.PC.
Impeller Plastic.POM.
Shaft ① 410 ② AISI 304 SS
Shaft coupling AISI 304 SS
Motor external casing ① AISI 201 SS ② AISI 304 SS
Top chock ① Cast-Cu ASTM280 ② Cast-Iron G20 UNI5007
Mechanical seal Special seal for deep well (carbon=SiC/TC)
Shaft AISI 304 SS–C1045
Bearing ① NSK ② C&U
Seal lubricant oil Oil for food machinery and pharmaceutical use

Flow Rate


Flow Rate

Additional Components

AISI 304 SS

AISI 304 SS
Capacitor Inside

Capacitor Inside
Cast Iron

Cast Iron

Flow Rate


Flow Rate

Performance Data 50Hz


Performance Data
Characteristics

Top chock: cast-iron or brass
Max diameter: Ø75
Cable: 2 + 1 wires or 3 + 1 wires
Single phase capacitor inside motor: use 2+1 wires
Single phase motor capacitor outside (with control box, black wire is the public wire, blue is the main wire, brown is the sub wire, yellow and green is the grounding wire) or three-phase Motor: use 3+1 wires

Model instruction






Documentation

No Name No Name
1 Clamping spring 31 Screw
2 End cover 32 Strainer
3 Rubber cup 33 Pump external casing
4 Motor external casing 34 Cable cover
5 Bearing seat 35 Screw
6 Insulation sleeve 36 Screw
7 Stator 37 Coupling
8 Bearing 38 Shaft
9 Rotor 39 Adjust shaft sleeve
10 Bearing 40 Diffuser cover
11 Corrugated gasket 41 Impeller
12 Seal Gasket 42 Diffuser
13 Mechanical seal 43 Hexagon gasket
14 O-ring 44 Upper shaft sleeve
15 Stator ring 45 Screw
16 Button 46 Upper support
17 Cross countersunk head 47 Upper shaft sleeve
18 O-ring 48 Valve seat
19 Screw 49 O-ring
20 Spring washers 50 Valve core
21 Screw 51 Outlet
22 Top chock
23 Cable
24 Pressing rubber pad
25 Screw
26 Skeleton oil seal
27 Sand proof seat
28 Gasket
29 Sand proof cup
30 Connector

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