Drainage pump models " Speroni STS 300 HL» is designed for pumping only clean water that does not contain solid insoluble impurities. The product is small in size and weight, installation is carried out vertically. To save energy, an automatic water level control system is provided, which is carried out using a special float.

The main advantages of the pump model in question from the Italian brand Speroni:

• The pump is designed for continuous operation.
• Made with thermal overload protection.
• Constant liquid level monitoring system.
• Motor insulation class - F.
• Protection class IP 68.
• The handle is plastic.
• The pump housing is plastic.
• The impeller is polymer noryl.
• Motor housing is stainless steel.
• Shaft with rotor made of stainless steel.
• Double mechanical seal with oil chamber.

A series of high-performance pumps for various purposes from the most popular Italian brand Speroni - this is a high quality of materials, a long and trouble-free service life, as well as an affordable price. Each model has been tested in production and meets all requirements and standards accepted in this area. In the manufacture of Speroni products, high-quality materials are used that are resistant to wear, which guarantees a long service life of such equipment. It is worth noting the low electricity consumption, which made the pumps of the manufacturer in question energy efficient and beneficial for the consumer.

Speroni borehole pump

Today, the situation on the market for centrifugal pumps for wells has changed noticeably; if a couple of years ago Grundfos was especially popular, almost everyone installed them, but now they have lost their former popularity. For the entire 2016, we installed only a couple of Grundfos. The price of these devices exceeded all reasonable limits and forced summer residents to pay attention to cheaper analogues. This contributed to the growth of the middle price segment, in which well pumps from Italy have firmly taken their place. In one of our materials we looked at Italian Pedrollo pumps, and today it’s time to look at the slightly cheaper Speroni.
Recently, on the Russian market, the name Speroni has been removed and replaced by WATERSTRY. No need to worry, these are the same Speroni.

Having extensive experience in installing these devices, we will share with you our experience and leave our feedback on Speroni pumps. We’ll also tell you about them technical specifications, how they differ from each other, and we present the main pros and cons of these devices.

Speroni SQS borehole pumps

A series of narrow submersible pumps, 3 inches in size, designed for installation in wells drilled with 133 mm pipe + 117 mm or 110 mm plastic. Their diameter is 75 mm, which means the Speroni SQS can also be lowered into narrower casing pipes. The minimum diameter of such a pipe can be calculated as follows: 75 mm diameter of the pump + 4 mm gap between the pump and the pipe + 15 mm thickness of plastic HDPE pipes. We get a minimum outer diameter of the pipe of 94 mm.
The Speroni SQS centrifugal well pump is a real salvation for the summer resident. Previously, there were quite a few 3-inch pumps and you almost always had to buy expensive Grundfos. Now you can install Speroni SQS and save several tens of thousands of rubles.

The Speroni SQS / WATERSTRY SQS model range consists of the following pumps:

• Speroni SQS 1
• Speroni SQS 2

Well pump Speroni SQS 1— devices with a nominal capacity of 1 m 3 /hour. The second value in the device labeling indicates the pressure at which the declared productivity of 1 m 3 / hour is achieved.
With less pressure, productivity will increase, with more pressure it will decrease.
Only 4 models can be found on sale:

• Speroni SQS 1-45
• Speroni SQS 1-70
• Speroni SQS 1-90
• Speroni SQS 1-130

Characteristics of Speroni SQS 1

Prices for the popular submersible Speroni SQS 1-90 are very reasonable and start at 9,500 rubles.

Centrifugal pump Speroni SQS 2- a model with increased productivity of 2 m3/hour at a pressure indicated in the model designation. As with any other pump for wells, with a lower pressure, the pump productivity will be higher than 2 m 3 / hour.

SQS 2 models:

• Speroni SQS 2-30
• Speroni SQS 2-45
• Speroni SQS 2-60
• Speroni SQS 2-90

Characteristics of Speroni SQS 2

The price of Speroni SQS 2-90 or WATERSTRY SQS 2-90, which are quite popular among summer residents, starts at 10,000 rubles.

Main pros and cons of Speroni SQS for wells

• The undoubted advantage is the price; it is simply savingly low and allows you to do without expensive 3-inch models.
• Reliability. Speroni's main series deep-well pumps (STS and SPS) are quite reliable and have proven themselves, but they are manufactured in Taiwan, while SQS is produced in China. Its production was launched not so long ago and there is no information about its actual service life. But so far everything is good and no complaints.

• The narrow model range does not allow you to choose a pump for a well with a productivity of 3 m 3 / hour and higher for water supply to your home.

Price-quality Speroni SQS is at high level.

Speroni STS pump

Well pump Speroni STS has a typical diameter of 4 inches or 98 mm, which imposes restrictions on the ability to install in some wells. For example, the minimum diameter of the casing into which this pump can be lowered is 125 mm or more.
The Speroni STS centrifugal pump itself has a stainless steel body and impellers made of noril plastic. But don’t let this scare you, the pump is quite reliable and durable. Before handing over the well, the drillers have already pumped your well, you already have clean water, there is nothing in it that would erase this plastic.
The STS model range is very wide and you can always find optimal device for your well.
In Russia, the centrifugal Speroni STS is being replaced by the Waterstry STS. This is the same Speroni, but under a different brand.

Characteristics of SPERONI STS

Pros and cons of Speroni STS

• Great price, these models are quite cheap, often cheaper than other deep well pumps from Italy.
• High reliability. The Speroni STS is assembled in Taiwan and, judging by the quality, they are assembled really well. We have extensive experience in installing these devices and have not yet received any complaints about their operation.
  It can be assumed that the service life of Speroni pumps is more than 10 years, with periodic adjustment of the automatic pressure control.
• Wide range of models, you can always choose a model for your well.

• No. Perhaps for some, a diameter of 4 inches will be a minus.

Good value for money.

Speroni SPS pump

These centrifugal pumps are made entirely of stainless steel. But the seals between the wheels are still rubber.
The question arises: which is better Speroni STS or SPS?
The model with the SPS index is a fairly simple pump in design; it is often used by drillers to pump a well. It can be easily disassembled and put back together, which is not the case with the Speroni STS. For a summer resident whose pump will be constantly in the well, all this is of no use. Therefore, it makes no difference to you which pump to choose. The reliability of both is at the same high level, but the Speroni STS is slightly cheaper.

In Russia you can also buy the Waterstry SPS model, it’s just a renamed Speroni SPS.

Characteristics of SPERONI SPS

Pros and cons of the Speroni SPS well pump

• Good price.
• Long service life. Over the years of our work with these pumps, no one has had any problems. If you periodically adjust the automatic pressure control (as required), then the service life of Speroni SPS can be more than 10 years.
• An even wider model range than the STS. You can choose a model for any household well. There are even very efficient three-phase Speroni SPS on sale.

• More expensive than Speroni STS models with similar characteristics.

The price-quality ratio is at a high level.

You will be interested in:

The reliable Speroni STS centrifugal well pump has a diameter of 4 inches. Such dimensions allow the pump to be lowered into the most common domestic wells with a diameter of 133 mm. Designed to work in clean water with the amount of small solid impurities not exceeding 50 g/m3. Also, the water should not contain mineral oils or other oil-containing components.

The Speroni STS pump has a good price-quality ratio and is designed to supply water from an artesian well to domestic autonomous water supply systems that are mounted on country dachas and in cottages. The product is also used for organizing watering of home gardens and vegetable gardens. The ability to place the pump not only vertically, but also horizontally allows the Speroni STS to be used for collecting water from small sources.

Advantages of Speroni STS well pumps

· body material - stainless steel AISI 304

· material of impellers - wear-resistant polymer Noryl

· working shaft - stainless steel

single-phase electric motor with high efficiency and low energy consumption

· protection of the electric motor from overheating, auto-start of the engine after cooling

· starting capacitor unit (built-in or remote)

· built-in check valve

Can be installed in vertical or horizontal position

Characteristics of Speroni STS well pumps

The pumps are used for pumping clean, chemically non-aggressive water from wells with a diameter of at least 100 mm without long-fiber inclusions. Pumps of the STS series are mainly used in drinking and domestic water supply systems of private houses. ST series pumps are multi-stage centrifugal pumps with a maximum diameter of 99 mm (including power cable). The series pumps are economical, simple and reliable in operation due to the use in their design latest technologies and materials. AISI 304, AISI 316 stainless steel is used for components, which guarantees the durability and corrosion resistance of this equipment.
Maximum productivity m3/hour - up to 24
Maximum head m - up to 322
Purpose:
for pumping clean, chemically non-aggressive water from wells.
Scope of application:
supply of drinking water from deep wells;
agricultural irrigation and water supply for livestock farms;
municipal and industrial water supply;
increasing pressure in water supply systems.
Advantages:
The pump outlet chamber is made of AISI 304 stainless steel using precision casting, which ensures excellent durability
floating impellers made of noryl and diffusers made of polycarbonate,
fiberglass reinforced, make pumps
pump stage housings made of AISI 304 stainless steel have excellent
wear resistance;
a stainless steel mesh filter provides additional structural rigidity;
a check valve built into the upper chamber of the pump prevents reverse flow of liquid and softens the impact of water hammer on pump parts;
the pump shaft, made of hexagonal stainless steel rod, has high corrosion resistance;
PTFE bearings have increased wear resistance;
The pump housing is covered with a thick sheet of AISI 304 stainless steel.
high efficiency;
efficiency;
the ability to operate pumps in both vertical and horizontal positions;
thermal protection electric motors with a voltage of 220 V.
Operating parameters:
The maximum temperature of the pumped liquid is 35 °C;
Maximum sand content – ​​50 g/m3;
The maximum number of starts is 40/hour.
Material Specification:
Pump design:
The STS borehole pump is a submersible centrifugal multistage pump with normal suction. It consists of a pumping part, which includes a certain number of stages - working chambers, which consistently increase the pressure at the pump discharge pipe. Each working chamber contains an impeller, a diffuser and a chamber body. The final stage of the pump is equipped check valve and an outlet with internal thread. The fluid enters the hydraulic part through a hole in the adapter flange, protected from sand, drilling products and other foreign objects using a special strainer. The hydraulic part is structurally designed with a floating impeller, which reduces the requirements for the starting torque and reduces the abrasive effect of sand in water. In the STS series, the impeller is made of noryl, a very durable polymer material, a mixture of polyphenylene oxide (PPO) and polystyrene (PS), which was developed by General Electric Plastics in 1966.
The connection between the motor and the pump is made in accordance with NEMA standard.
Installation:
These pumps are designed specifically for use in wells. As a result, the electric motor is cooled here by a flow of water moving from bottom to top along the motor to input filter between it and the pump part. Therefore, it is possible to install a borehole pump in a tank or well, but it is necessary to place the product inside a cooling casing, thereby simulating operating conditions in a well. Horizontal installation of the SQS pump is also possible, in which case the outlet pipe should be located slightly above the intake opening.
The connection of the standard motor to the waterproof power cable must be done by installing a waterproof poured or heat-shrinkable adhesive sleeve (see section Accessories, WATERSTY sleeves).
The cross-section of the power cable is selected depending on the power of the electric motor and the required length to the power source (see the corresponding section of the instructions for the pump). It is recommended to use a stainless steel safety cable, automatic pump shutdown (pressure switch, press control), a dry-running protection relay and a membrane tank.
Overall dimensions and weight of WATERSTRY STS series pumps
A – length of the pump part
B – overall length
C – pump diameter, including cable protection
D – connection size

STS borehole pump are used for pumping clean, chemically non-aggressive water from wells with a diameter of at least 100 mm without long-fiber inclusions. STS series pumps, are mainly used in drinking and domestic water supply systems of private houses. ST series pumps are multi-stage centrifugal pumps with a maximum diameter of 99 mm (including power cable). The series pumps are economical, simple and reliable in operation due to the use of the latest technologies and materials in their design. AISI 304, AISI 316 stainless steel is used for components, which guarantees the durability and corrosion resistance of this equipment.
Maximum productivity m3/hour - up to 24
Maximum head m - up to 322
Purpose:
for pumping clean, chemically non-aggressive water from wells.
Scope of application:
supply of drinking water from deep wells;
agricultural irrigation and water supply for livestock farms;
municipal and industrial water supply;
increasing pressure in water supply systems.
Advantages:
The pump outlet chamber is made of AISI 304 stainless steel using precision casting, which ensures excellent durability
floating impellers made of noryl and diffusers made of polycarbonate,
fiberglass reinforced, make pumps
pump stage housings made of AISI 304 stainless steel have excellent
wear resistance;
a stainless steel mesh filter provides additional structural rigidity;
a check valve built into the upper chamber of the pump prevents reverse flow of liquid and softens the impact of water hammer on pump parts;
the pump shaft, made of hexagonal stainless steel rod, has high corrosion resistance;
PTFE bearings have increased wear resistance;
The pump housing is covered with a thick sheet of AISI 304 stainless steel.
high efficiency;
efficiency;
the ability to operate pumps in both vertical and horizontal positions;
thermal protection of electric motors with a voltage of 220 V.
Operating parameters:
The maximum temperature of the pumped liquid is 35 °C;
Maximum sand content – ​​50 g/m3;
The maximum number of starts is 40/hour.
Pump design:
STS borehole pump– submersible centrifugal multistage pump with normal suction. It consists of a pumping part, which includes a certain number of stages - working chambers, which consistently increase the pressure at the pump discharge pipe. Each working chamber contains an impeller, a diffuser and a chamber body. The final stage of the pump is equipped with a check valve and an outlet with internal thread. The fluid enters the hydraulic part through a hole in the adapter flange, protected from sand, drilling products and other foreign objects using a special strainer. The hydraulic part is structurally designed with a floating impeller, which reduces the requirements for the starting torque and reduces the abrasive effect of sand in water. In the STS series, the impeller is made of noryl, a very durable polymer material, a mixture of polyphenylene oxide (PPO) and polystyrene (PS), which was developed by General Electric Plastics in 1966.
The connection between the motor and the pump is made in accordance with NEMA standard.

Installation:
These pumps are designed specifically for use in wells. As a result, the electric motor is cooled here by a flow of water moving from bottom to top along the motor to the inlet filter between it and the pump part. Therefore, it is possible to install a borehole pump in a tank or well, but it is necessary to place the product inside a cooling casing, thereby simulating operating conditions in a well. Horizontal installation of the SQS pump is also possible, in which case the outlet pipe should be located slightly above the intake opening.
The connection between the standard motor and the waterproof power cable must be done by installing a waterproof filler or heat-shrinkable adhesive sleeve
The cross-section of the power supply cable is selected depending on the power of the electric motor and the required length to the power source. It is recommended to use a stainless steel safety cable, automatic pump shutdown (pressure switch, press control), a dry-running protection relay and a membrane tank.

Pump performance range
The main difference between the STS and SPS series pumps is the material of the impellers and diffusers, as well as the design of the pump housing. The STS series uses noryl for manufacturing. A set of impellers and diffusers is placed in a sleeve that reliably protects the working elements of the pump. The surface of impellers and diffusers made of noril has a low surface roughness, so the hydraulic parameters of the flow path are quite high.
To solve the problems of water supply to a private home, a pump with a capacity of no more than 5 cubic meters is sufficient, so the STS series pumps (with pressure characteristics of more than 30 atm.) fully satisfy these requirements. This catalog presents all versions of 4-inch STS pumps from the manufacturer. If you need to have high pressure characteristics with a productivity of more than 10-12 cubic meters per hour, then you need to choose SPS models.