Schmalenberger submersible pump STA403/650-AX+182

European importschmalenbergersubmersible pumpSZ 32-16/2-2

1、 Product Overview

Schmalenberger SZThe series of rapid suction immersion pumps is from GermanySchmalenberger Strömungstechnologie GmbH(Established in)1954Years, possessing over70One of the classic product lines with years of experience in industrial pump technology.SZ 32-16/2-2Belonging to the medium specification model in this series, it is designed specifically for pumping high gas content and solid particle contaminated media, especially suitable for coolant circulation treatment in the field of machine tool processing.

2、 Model Interpretation

|Model section|meaning|

|---------|------|

| SZ |Rapid suction immersion pump（Quick Suctioning Immersion Pump）|

| 32 |The nominal diameter of the pump outlet,DN 32(About)1 1/4Inches)|

| 16 |The nominal diameter code of the impeller corresponds to a diameter of approximately135-140mmDetermine the lift capacity|

| /2 |Number of motor poles:2Extreme (synchronous speed approximately)2900 rpm）|

| -2 |Motor power2.2 kW(This is a common interpretation, and in some materials, the same model is labeled as“2-2,2 IE2”Among them“2,2”That is2.2 kW）|

This model is similar to similar modelsSZ 32-16/2-3 C IE3（3 kW）Belonging to the same pump body platform, the main differences lie in motor power and energy efficiency level.

3、 Core technical parameters

according toSZThe technical specifications of the series and the measured data of similar models,SZ 32-16/2-2The main technical parameters are summarized as follows:

|parameter item|numerical value|

|---------|------|

|Rated flow rate（Q）|about10.8 ~ 15 m³/h(About)180~250 L/min）|

|Rated head（H）|about20 ~ 25 m(Actual measured value:20.3 m @ 15 m³/h）|

|Motor power（P）| 2.2 kW（2Extreme)|

|Power Specifications| 230/400 V，50 Hz(Customizable)460V 60 Hz）|

|energy efficiency rating| IE2 / IE3（optional）|

|Protection level| IP 55(Block type motor)|

|Rotational speed（n）|about2900 rpm（2Polar motor)|

|Allowable medium temperature| 1.0 ~ 120°C |

|Allow solid particles|maximum20 mm(Free kick channel)|

|Allowable gas content|Gundam15%volume ratio|

|pump body material|Liquid receiving components: cast iron (layered graphite), optional non-ferrous metals|

|Impeller material| EN-JL 1030(Grey cast iron)|

|Axis material| 1.1191(Structural steel)|

|Throttle valve sleeve (shaft seal)|Silicon carbide（SiC）, maintenance free|

|pressure interface| G 1 1/4“|

|Inhalation interface| G 2“|

|Installation method|Vertical immersion installation (container)/In the storage tank|

4、 Design Features

4.1 Composite impeller design

SZ 32-16/2-2The core technology lies in its unique impeller structure - a composite of an open impeller and a compressor impeller. This design enables it to simultaneously transport air and media containing solid particles, solving the problem of cavitation and performance degradation that ordinary centrifugal pumps are prone to when dealing with gas containing liquids.

4.2 Efficient shaft seal system

Adopting maintenance free silicon carbide throttle valve sleeve sealing, providing reliable shaft sealing and guiding functions, wear-resistant and high-temperature resistant, significantly reducing maintenance frequency and operating costs.

4.3 Durable material selection

-The pump body and impeller are made of high-strength gray cast ironEN-JL 1030Manufacturing, with good corrosion resistance and wear resistance

-Axis adopts1.1191High quality structural steel ensures mechanical strength for long-term operation

-The liquid receiving components can be made of cast iron layered graphite or non-ferrous metals, suitable for different media environments

4.4 Flexible immersion depth

Users can choose multiple immersion depths based on the application scenario:250 mmThe320 mmThe450 mmThe550 mmThe750 mmor980 mmFlexible adaptation to containers or storage tanks of different depths.

4.5 Variable frequency compatibility

The characteristic curve can be obtained through a variable frequency drive（VFD）Expand to facilitate the adjustment of flow rate and head under different operating conditions, achieving energy-saving operation.

5、 Typical application scenarios

-Metal processing coolant circulation: suitable for the transportation and circulation of emulsions, grinding oils, and cutting oils during machine tool processing such as grinding, milling, and turning

-Chip and coolant mixture treatment: can pump contaminated coolant containing metal chips, up to20mmSolid particles

-Industrial cleaning system: used for liquid transportation in surface treatment, cleaning, degreasing and other processes

-Central lubrication system: providing reliable medium delivery in the centralized lubrication system of large mechanical equipment

6、 Selection and installation suggestions

-Confirm the characteristics of the medium: Before use, the temperature, viscosity, gas content, and solid particle size of the medium should be confirmed.SZThe series can handle the maximum20mmSolid particles and the highest15%Volume ratio of gas content.

-Choose the appropriate immersion depth: Select the immersion depth based on the range of liquid level changes in the tank or container to ensure that the pump always has sufficient immersion depth during operation to prevent air intake.

-Check electrical configuration: Confirm that the power supply voltage and frequency are consistent with the motor nameplate. The standard configuration is230/400V 50Hz, can be customized according to requirements460V 60Hz.

-Vertical installation: The pump should be installed vertically in the container or storage tank to ensure stable fixation.

-Maintenance inspection: Despite adopting a maintenance free shaft seal design, it is still recommended to regularly check the operating status of the pump, including motor current, vibration, and noise levels.

7、 Comparison reference of similar models

|model|power|flow range|characteristic|

|------|------|---------|------|

| SZ 25-13/2-1,5 IE3 | 1.5 kW |about180 L/min（10.8 m³/h）|Smaller flow rate, suitable for light load processing|

| SZ 32-16/2-2 | 2.2 kW |about180~250 L/min |This model has a balanced configuration|

| SZ 32-16/2-3 C IE3 | 3 kW |about250 L/min（15 m³/h）|Same pump body, higher power output|

| SZ 50-16/2-5,5C IE2 | 5.5 kW |Gundam600 L/min（36 m³/h）|Larger traffic, suitable for heavy-duty processing|

Schmalenberger submersible pump STA403/650-AX+182

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Schmalenberger submersible pump STA403/650-AX+182

About Zhuming Automation：

Shanghai Zhuiming Automation Technology Co., LtdShanghai Dreamingautotech Ltd. was founded in 2011 and is a professional supplier of imported industrial equipment and components. The company adheres to the service concept of "customer-centric", respects customer needs, provides professional technical support and flexible and effective supply chain management to ensure that customers receive high-quality products and services.

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