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J 12

Sulzer submersible dranaige pump J 12

The low weight and compact design of the submersible drainage pump J 12 ensure convenient transport, handling, and installation. The pump is ideal for pumping water and dirty water mixed with light abrasives. 50 Hz: head max 15 meters, flow max 9 l/s. 60 Hz: head max 18.5 meters (61 feet), flow max 8.5 l/s (135 gpm).

Specification

Electric submersible pump.
Maximum submergence: 20 m.
Protection class IP 68.
Max temperature of pumped medium at max power input and  continuous duty 40 ºC.
Max medium density 1100 kg/m3. pH of the pumped medium 5-8. 
Strainer hole: 6.5 x 22 mm.
Max number of starts 30/hour.

Electric motor

Single-phase induction motor with built-in capacitor, 50 Hz:

Service factor 1.1. Class F insulation.
Voltage: 230 V. Motor rating P2: 0.9 kW.
Speed: 2770 rpmŋ: 70.3 (50 %), 71.5 (75 %), 66.8 (100 % load)
Voltage: 110 V. Motor rating P2: 1.4 kW.
Speed: 2825 rpmŋ: 77.63 (50 %), 78.06 (75 %), 72.75 (100 % load)

Voltage, V 110 230
Nominal current, A 12.7 5.9

3-phase squirrel-cage induction motor, 50 Hz:

Service factor 1.1. Class F insulation.
Motor rating P2: 0.9 kW.
Speed: 2770 rpmD.O.L. start with built-in contactor.ŋ: 78.0 (50 %), 76.0 (75 %), 70.5 (100 % load)

Voltage, V 230 400 500
Nominal current, A 3.8 2.2 1.8

Power cable

20 m type H07RN8-F:
4 x 1.5 sq.mm. (3-phase)
3 x 1.5 sq.mm. (single-phase)

Motor protection

Built-in thermal switches in the stator winding (140ºC, ±5)

Shaft seal

Double mechanical seal in oil bath.
Primary seal: Silicon carbide on silicon carbide.
Secondary seal: Silicon carbide on silicon carbide.

Bearings

Upper bearing: Single-row deep groove ball bearing. 
Lower bearing: Single-row deep groove ball bearing.

Discharge connections

1 ½", 2" (standard), 2 ½", 3" hose connections.
2", 2 ½", 3" B.S.P. threaded connections.

Weight

D: 18 kg, W: 19 kg (without cable)

Options and accessories

Zinc anodes. Surface protection coating.
Bottom suction adapter. Series connection.
Starter and control units. Floatation ring.
Carry case. Repair kit.
Discharge connection accessories and hose.

Materials

Description Material EN ASTM
Castings Aluminium EN 1706:AC-43100  ASTM AlSi10mg
Casing / Fasteners Stainless steel 10088:X5CrNi18-10 (1.4301)  AISI 304
Shaft Stainless steel 10088:X20Cr13 (1.4021)  AISI 420
Impeller White cast iron EN-GJN-HV600(XCr23)  ASTM A 532: Alloy III A
Wear parts / O-rings Nitrile rubber    

En