CL Pumps
CL-type centrifugal pumps are designed for pumping chemically neutral liquids free of solid impurities, with temperatures up to 110°C, density up to 1.1 kg/dm³, and viscosity up to 5 mm²/s. The maximum allowable inlet pressure to the pump is 0.6 MPa. CL pumps are mainly used in central heating (C.O.) and hot water (C.W.) systems.
Features:
• Guaranteed reliable operation for many years and easy access to spare parts
• Continuous technical supervision, including warranty and post-warranty service
• Low purchase and operating costs
• Relatively long service life even under demanding operating conditions
CL Pump Construction
CL-type inline centrifugal pumps are single-stage pumps with a compact design. The connection system allows direct integration into central heating or hot water pipelines. The pump is mounted directly on an electric motor using a special shaft end that enables installation of the pump impeller and front mechanical seal. The pump housing is attached to the motor flange with a special connector using double-sided screws: M8 for CL3 and M10 for CL4 models.





Technical Parameters
|
Flow Rate |
4,5 ÷ 36 m3/h |
|
|
Head |
up to 5,8 m |
|
|
Pumped Liquid Temperature |
up to 110oC |
|
|
Weight |
18 ÷ 26,7 kg |
|
|
Motor Power |
CL 3 |
0,25 kW |
|
Cl 4 |
0,55 kW |
|
CL pumps are manufactured in a single material configuration
Pump Part | Material |
Pump Housing | Grey Cast Iron |
Impeller | Brass |
Shaft | Stainless Steel |
Pump Dimensions:
| Pump Type | H | K | d | e | f | g | m | i | L |
| CL 3.01 | 280 | 150 | 64 | 145 | 180 | 18 | 18 | 4 | 277 |
| CL 4.01 | 360 | 190 | 80 | 160 | 195 | 18 | 21 | 8 | 297 |
Characteristics
| Q | m3/h | 4,5 | 6 | 9 | 12 | 15 | 16,5 | ||||||
| l/min | 75 | 100 | 150 | 200 | 250 | 275 | |||||||
| Standard Dimensions | H | P | H | P | H | P | H | P | H | P | H | P | |
| CL.3.01 | 3,62 | 107 | 3,57 | 117 | 3,47 | 137 | 3,16 | 157 | 2,65 | 175 | 2,35 | 186 | |
| Q | m3/h | 6 | 12 | 18 | 24 | 30 | 36 | ||||||
| l/min | 100 | 200 | 300 | 400 | 500 | 600 | |||||||
| Standatd Dimensions | H | P | H | P | H | P | H | P | H | P | H | P | |
| CL.4.01 | 5,80 | 270 | 5,70 | 350 | 5,30 | 400 | 4,60 | 440 | 3,60 | 470 | 2,45 | 470 | |
H – Pump Head [m]
P – Shaft Power [kW]
Operating Range of CL Pumps

Pump Cross-Section




