Self-priming industrial centrifugal pumps – CTS I series
The CTS series are self-priming centrifugal pumps with an open impeller allowing the lifting of media from a level of -4.5 m. The CTS centrifugal pump is characterized by an optimized design based on the elements of the standard Tapflo CT pump. By replacing only one element (housing) we gain many advantages of a self-priming pump. The pump can therefore suck media with a high air content from a lower level than the pump’s installation level.
Tapflo CTS self-priming pumps are available in two versions – industrial (CTS I) and hygienic (CTS H).
The CTS I self-priming industrial centrifugal pump is made of 316L stainless steel and thanks to its high mechanical strength and chemical resistance is intended for industrial applications in general industry, chemical, refinery or wastewater treatment plants.
FAST FACTS
FEATURES & BENEFITS
The CTS series are self-priming centrifugal pumps with an open impeller allowing the lifting of media from a level of -4.5 m. The CTS centrifugal pump is characterized by an optimized design based on the elements of the standard Tapflo CT pump. By replacing only one element (housing) we gain many advantages of a self-priming pump. The pump can therefore suck media with a high air content from a lower level than the pump’s installation level.
Tapflo CTS self-priming pumps are available in two versions – industrial (CTS I) and hygienic (CTS H).
The CTS I self-priming industrial centrifugal pump is made of 316L stainless steel and thanks to its high mechanical strength and chemical resistance is intended for industrial applications in general industry, chemical, refinery or wastewater treatment plants.
| Pump capacity: | 54 m3/h (900 l/min) | |
| Head: | 40 m | |
| Max. discharge pressure: | CTS-C: 2.5 bar CTS-D,E: 4 bar |
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| Max size of solids: |
6 mm | |
| Temperature: | 90 °C | |
| Viscosity: | 200 mPa·s | |
| Casing material: |
AISI 316L stainless steel | |
| Impeller material: | open, made of AISI 316L, optionally semi-open impeller | |
| Mechanical seal: | single: ceramic/graphite (standard), SiC/SiC or SiC/graphite, optionally with oil chamber or external flushing | |
| O-rings: | EPDM (standard), FKM, FEP/silicone or NBR | |
| Electric motor: | IP55, IEC flange B3/B14 (B3 for version with extended shaft). Available with ATEX Ex e or Ex d certificate. Other motors available on request. | |
| Available sizes and connections: |
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| Model |
BSPT male thread (standard) | BSPP (G) female thread | |
| inlet | outlet | drain | |
| CTS I C… | 1 ½” | 1 ½” | ⅜” |
| CTS I D… | 2 ½” | 2″ | ⅜” |
| CTS I E… | 2 ½” | 2″ | ⅜” |
| Industry | Application example |
| General | Acids, bases, oil, grease, coolants, detergents, cleaning and washing agents, cooling or heating media. Supplying and unloading storage tanks, containers, filters, wells. Supplying process equipment, dosing systems, dosing units, research stations. |
| Chemical and refinery | Oil, fuel, chemicals, chemical reagents, suspensions, solvents, concentrated or diluted acid and base in ATEX explosion hazard zones. |
| Sewage treatment plants | Sewage, suspensions, emulsions. |
(1) To ensure self-priming capability, fill the pump housing with liquid as shown in the drawing.
(2) After starting, the pump slowly begins to draw air from the pipeline, creating a vacuum and lifting the liquid. Air is mixed with the liquid in the pump housing. The discharge valve must be open to allow self-priming. Air escapes through the discharge piping, and the liquid is returned to the impeller because it has a higher density than the air-liquid mixture.
(3) This process continues until the suction line is completely emptied of air, and the pump operates as a standard centrifugal pump.
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Self-priming casing The CTS series pump features an optimized design based on the elements of the standard CT pump. By replacing just one element (the standard casing with a self-priming casing) we gain many advantages of a self-priming pump. The pump can therefore suck in medium with a high air content from a lower level than the pump’s installation level. After the pumping process, an appropriate amount of medium remains in the casing, and the pump’s design allows it to be restarted without priming. |
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Open impeller CT series pumps have an open impeller with a robust design, high efficiency and low Net Positive Suction Head required (NPSHr). CT series pumps with an open impeller are both easy to clean and suitable for pumping liquids containing solids. |
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Semi-open impeller CT series pumps can be equipped with a semi-open impeller. Compared to the standard open impeller, the semi-open impeller provides more stable operation, lower noise levels, less vibration and a more robust design. The semi-open impeller is recommended when hard solids may be present in the pumped liquid. |
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Mechanical seal |
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| Single mechanical seal
The mechanical seal spring is not in contact with the pumped liquid, which makes the internal pump chamber fully washable. |
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| Casings available in Ra<1.6 μm
Wetted and external parts glass blasted to Ra<1.6 μm |
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| Flushed Seal
This option is similar to the lubricated seal option and is recommended when there is a potential risk of dry running, or when the product has a tendency to solidify or crystallize in contact with air. Additionally, the circulating flushing liquid removes heat from the mechanical seal. |
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| Lubricated Seal
An excellent solution where there is a risk of short-term dry running and/or crystallization due to contact with air. |
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| Trolleys for centrifugal pumps
Do you want to use one pump in multiple locations in your plant? Do you have technological processes scattered throughout the factory? We offer mobile solutions adapted to most Tapflo pumps. Thanks to the possibility of free transport of the pump, the use of the device is almost unlimited. Pump trolleys are available in several sizes, as well as in hygienic and industrial versions: Features and benefits:
Want to know more? Check out the product page for Tapflo pump trolleys |
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| Self-priming hygienic centrifugal pumps | CTS H series
Designed for hygienic applications, including in the food, dairy, chemical and pharmaceutical industries. Equipped with hygienic connections compliant with DIN 11851 as standard and mechanical seals and elastomers with FDA and EC 1935 approval. Wetted parts are electro-polished to Ra <0.8 μm as standard (Ra <0.5 μm on request) and external surfaces are glass-bead blasted to Ra <3.2 μm. Want to know more? Check out the CTS H self-priming hygienic centrifugal pumps product page. |
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| Vertical centrifugal pumps | CTV series
Thanks to Want to know more? Check out the CTV vertical centrifugal pumps product page. |
| Pump capacity: | 54 m3/h (900 l/min) | |
| Head: | 40 m | |
| Max. discharge pressure: | CTS-C: 2.5 bar CTS-D,E: 4 bar |
|
| Max size of solids: |
6 mm | |
| Temperature: | 90 °C | |
| Viscosity: | 200 mPa·s | |
| Casing material: |
AISI 316L stainless steel | |
| Impeller material: | open, made of AISI 316L, optionally semi-open impeller | |
| Mechanical seal: | single: ceramic/graphite (standard), SiC/SiC or SiC/graphite, optionally with oil chamber or external flushing | |
| O-rings: | EPDM (standard), FKM, FEP/silicone or NBR | |
| Electric motor: | IP55, IEC flange B3/B14 (B3 for version with extended shaft). Available with ATEX Ex e or Ex d certificate. Other motors available on request. | |
| Available sizes and connections: |
|||
| Model |
BSPT male thread (standard) | BSPP (G) female thread | |
| inlet | outlet | drain | |
| CTS I C… | 1 ½” | 1 ½” | ⅜” |
| CTS I D… | 2 ½” | 2″ | ⅜” |
| CTS I E… | 2 ½” | 2″ | ⅜” |