GTOS dual suction open pump

Double suction GTOS single-stage single suction mid opening pump has obtained a patent number. After scientific and technological innovation by the Ministry of Science and Technology of the People's Republic of China, the conclusion is that all economic indicators have reached the level of similar products internationally;

1、 Product Introduction and Application Scenarios:

GTOS single-stage double suction open pump is used to deliver clean water or liquids with physical and chemical properties similar to water at a temperature not exceeding 105 ° C.

Used for transporting liquids in water plants, pump stations, power stations, air conditioning circulating water, heating hot water circulation, industrial water supply systems, fire protection systems, ships, building water supply, irrigation, drainage pump stations, oil refining industries, and other occasions.

2、 Six major characteristics:

The design of this series of products has the following technical advantages compared to other manufacturers' double suction pumps in the industry:

1. Compact structure, good overall rigidity, and high operational stability;

2. Overall structural reinforcement design, with a shell design pressure rating of 1.6MPa, inlet and outlet flange pressure rating of 2.5MPa, and an overall pressure resistance capacity of 2.5MPa. The minimum wall thickness of the shell is 25 millimeters, and the thickness of the opening in the shell is 60 millimeters; The wall thickness of double suction pumps produced by other companies in the industry is generally around 18, and the thickness of the middle opening is around 35. So, for pumps with the same parameters, our company's GTOS pump is one-third heavier than products from other companies; The operational lifespan can be doubled.

3. In terms of materials, the shell impellers and other components of our company's products are made of HT250 cast iron and precision cast with resin sand; The sealing shaft sleeve is made of stainless steel material; All bearing materials are selected from imported brands; The sealed flushing pipe is made of integral stainless steel material and is equipped with a flow regulating valve on top, which can adjust the amount of sealed flushing water at any time. The impeller material of pump casings from other manufacturers in the industry is HT200, cast with ordinary clay sand, and the shaft sleeve is made of 45 # steel; The sealed flushing pipe is made of ordinary steel pipe;

4. Structurally, the design structure of our GTOS pump is completely different from other companies' products: a regular double suction pump consists of the pump body, pump cover, impeller, shaft sleeve, shaft, and bearing body components on both sides; Our GTOS pump is designed with a separate component between the pump body and pump cover: the sealing body; When the pump is used for a long time and the sealing chamber wears out, there is no need to replace the pump body, only the sealing body needs to be replaced to reduce operating costs.

5. The pump shaft adopts a high reliability design, and the strength level is increased by one level. The left and right bearing bodies are universal, reducing the types of spare parts ordered in the future and facilitating management. Moreover, temperature measuring devices are installed on both sides of the bearing body during design to monitor the temperature of the pump bearings at any time.

6. High efficiency: The hydraulic model of the impeller and shell of our company's products has an actual operating efficiency 3-5% higher than other similar products. Many users have achieved good energy-saving effects after actual use.

At present, there are many companies in the water pump industry that produce double suction pumps, but the technical content is indeed very different; The commonly used S-type pumps are technologies from the 1960s, with outdated structures, low efficiency, and poor reliability; Our SBS type products are designed with a high starting point, and their structure, material configuration, efficiency, and operational reliability are unparalleled by others.

If you have any questions about the above products, you can call: 021-57239999 orClick to consult experts for selection and quotation 3、 Operating data:

Export diameter: DN80-500mm

Flow rate: 50-4200m3/h (rated point)

Head: H=7.6-160m (rated point)

Allowable working pressure: 2.5Mpa

Allowable test pressure: 3.75Mpa

Medium: Clear water or other liquids with physical and chemical properties similar to clear water (soil particles ≤ 80mg/l).

Temperature: ≤ 105 ° C

4、 Hydraulic:

The optimized hydraulic model not only enables the pump to have excellent hydraulic performance, but also eliminates the problem of axial force that troubles the operation of pumps, especially large pumps. The pump body, pump cover, and impeller are precision cast, and the smooth flow surface improves the anti cavitation performance and efficiency of the pump.

5、 Sealing:

There are two common methods: packing seal or mechanical seal, which are not limited by steering. For packing seals, there is sufficient space for replacing the packing.

VIWorking conditions:

1. The allowable working pressure is 2.5Mpa; The pump inlet pressure+pump head is ≤ 2.5Mpa. According to the pressure borne by the pump casing, the materials of the pump body and pump cover are gray cast iron (1.6Mpa), ductile iron (2.0Mpa), and cast steel (2.5Mpa). Please indicate the pressure condition or material of the pump when placing an order.

2. Medium: Water with a temperature ≤ 1.5 ° C or other liquids with physical and chemical properties similar to water (solid particles ≤ 80mg/l)

7、 Bearings:

1. Sealed rolling bearings lubricated with grease are easy to maintain and have a long operating time.

2. Equipped with a constant oil level oil cup, it can also be lubricated with thin oil.

3. Imported high-quality bearings are selected for smooth operation, low noise, and long service life.

8、 Structure:

Compact structure and good stability. This type of pump has a split structure with the pump casing, and both the inlet and outlet are located on the pump body. During maintenance, only the pump cover needs to be lifted out, and the rotor components can be removed for maintenance without disassembling the pipeline, which is very convenient.

The motor can be installed on the left or right end as needed, making it convenient for on-site installation. Structurally shortening the axial dimensions of rotor components results in better shaft rigidity and more stable and reliable operation. There is a pump body sealing ring, and two impeller sealing rings can be selected. The sealing ring can be replaced after wear, reducing operation and maintenance costs.

9、 Main component materials

Material options for part names (optional)

Shaft 45, 2Cr13 (stainless steel)

Pump body, pump cover HT250, QT400-15 (ductile iron) ZG230-450

Impeller HT200, ZCuSn11 (bronze), ZG1Cr18Ni9 (stainless steel)

HT250, QT400-15, (ductile iron)

10、 Model meaning:

GT OS 150- 360A（B C）

GT - Shanghai Gaotian Brand

OS (SOW) - Horizontal Shell Centrifugal Pump

150- Diameter of water pump outlet

360- nominal diameter of impeller

A (B C) - The impeller undergoes the first cutting (second and third)

11、 Selection type spectrogram

12、 Product details:

Brand: Shanghai Gaotian
Model: GTOS80-220
Material: Cast Iron
Performance: Wear resistant
Purpose: Double suction pump
Pump shaft position: horizontal
Impeller suction method: double suction
Flow rate: 66.5 (m3/h)
Number of impellers: 1
Lift: 12.8 (m)
Shaft power: 2.8 (kW)
Inhalation caliber: 100 (mm)
Discharge diameter: 80 (mm)

thirteen、on-site installation

Electrical equipment working in hazardous areas must comply with explosion-proof regulations, as indicated on the nameplate. If the equipment is installed in a hazardous area, please be sure to comply with the local explosion-proof regulations, equipment inspection and qualification regulations, and the regulations set by the recognized management organization. The inspection certificate must be placed near the operation of the pump unit.

Pre assembly inspection

Prepare all necessary assembly work based on the dimensions given in the sample or installation diagram. According to the corresponding standards, concrete foundations must have sufficient strength to ensure safe and reliable assembly. Before placing the unit on the foundation, the concrete must be sturdy and the surface should be smooth and even.

Installation of pump unit

Installation of pumps and motors without a common base

1. Before installation, the concrete foundation must be sturdy and the surface should be smooth and even.

2. Insert the anchor bolts into the reserved holes on the foundation, place the pump on the foundation, and adjust the level at the shaft or outlet end with a spirit level. A cushion block must be placed near the anchor bolts between the base and the foundation.

3. After adjusting the level of the pump, grout the anchor bolts. Once the mortar is firm, tighten the bolts evenly and readjust the level.

Installation of pumps and motors with a common base

1. Measure and record the position of the pump.

2. Place the pump unit on the foundation, insert the anchor bolts into the foundation and adjust them. If grouting is required for the base, leave a gap of 40-50mm between the foundation and the base.

3. Grout the foundation bolts and make them sturdy.

4. Use adjustment screws to precisely adjust the unit and align it at the coupling.

5. Tighten the anchor bolts evenly.

6. If necessary, the base can be grouted, rechecked, and adjusted with gaskets at this time.

Adjustment of pumps and motors

It is necessary to ensure that the pump and motor are accurately aligned at the coupling. Even if the pump and motor are provided as a complete unit, they need to be aligned if necessary.

Method: If the axial and radial deviation of the coupling does not exceed 0.04mm, it can be considered that the pump unit has been well aligned.

Rotate the measuring tool evenly at both ends of the coupling by 90 ° each time, and check with a vernier caliper or micrometer. The readings at all points must be uniform.

Before starting the pump, it is necessary to check the operating data to ensure that the data on the nameplate, such as working pressure, frequency, and temperature of the delivered liquid, match the data on the contract and system.

If you have any installation issues, you can call 021-57239999 orClick to consult experts for selection and quotation

14、 User feedback:

fifteen、Causes and troubleshooting methods of faults

For water pump malfunction issues, please call 021-57239999 orClick to consult experts for selection and quotation

16、 (GTOS) SOW Performance Table

Installation dimension drawing