Sulzer submersible sludge pump JS 15
The submersible sludge pump JS 15 is excellent for pumping sludge and water mixed with solids. The pump has a slim design and low weight, which makes it easy to move and easy to handle. It can run without risk of overheating the motor or sludge clogging. 50 Hz: head max 15.5 meters, flow max 10 l/s. 60 Hz: head max 18.5 meters (61 feet), flow max 11 l/s (174 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. Free passage Ø 40 mm.
Max no. of starts 30/hour.
Max impeller diameter requires half motor or more submersed for continuous duty. (Pump can operate lying down.)
Electric motor
3-phase squirrel-cage induction motor, 50 Hz:
Service factor 1.1. Class F insulation.
Motor rating P2: 1.4 kW.
Speed: 2800 rpmD.O.L. start with built-in contactor.ŋ: 80.6 (50 %), 79.9 (75 %), 76.5 (100 % load)
Voltage, V |
230 |
400 |
500 |
Nominal current, A |
5.2 |
3.0 |
2.4 |
Power cable
20 m type H07RN8-F:
4 x 1.5 sq.mm. (3-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
2", 2 ½", 3" (standard) hose connections.
2", 2 ½", 3" B.S.P. threaded connections.
Weight
20 kg (without cable)
Options and accessories
Zinc anodes. Surface protection coating.
Starter and control units. Floatation ring.
Repair kit. Discharge connection accessories and hose.
Materials
Description |
Material |
EN |
ASTM |
Motor housing |
Aluminium |
EN 1706:AC-43100 |
ASTM AlSi10mg |
Fasteners |
Stainless steel |
10088:X5CrNi18-10 (1.4301) |
AISI 304 |
Rotor shaft |
Stainless steel |
10088:X20Cr13 (1.4021) |
AISI 420 |
Volute / Impeller |
Nodular cast iron |
1563:ENGJS-HB150 |
ASTM A536-80:60-40-18 |
O-rings |
Nitrile rubber |
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