Posts Tagged ‘circulation’

Heat transfer oil circulation pump acc. to DIN EN 733

Saturday, December 9th, 2017 von admin

Fig.1 The new NKX heat transfer oil circulation pump

The pump manufacturer Dickow has developed a new pump line NKX for circulation of thermal oil. The pump casing is designed for 16 bar and 350 °C. The new pump line extends the application limit of the previous NKLs-type. The new NKX will replace the series NKLs with exactly the same dimensions in future.

The NKX is used as a circulation pump for hot oils in industrial heating plants/units. The performance range covers capacities up to 400 m3/h and differential heads up to 90 m in 50 Hz services; and capacities up to 2,500 US-gpm and differential heads up to 400 ft in 60 Hz services. The dimensions and performance range of these centrifugal pumps are according to DIN EN 733, that means range is subdivided into different pump sizes in order to achieve best efficiency for all service conditions inside the envelope.


KSB: New high-efficiency circulators for OEMs

Monday, January 23rd, 2017 von admin

The high-efficiency circulator range Calio SI type series are intended for use in heating, air-conditioning and solar power systems where they facilitate automatic operation with constant-pressure or proportional-pressure control as well as operation with 0-10 V setpoint input or external control via PWM signal in accordance with VDMA-Einheitsblatt [Standard Sheet].

On the HMI, Dual and EcoMatch variants the user can select the required mode of operation via two pushbuttons on the control panel.


KSB: New drinking water circulators

Monday, February 15th, 2016 von admin

160127_CalioTherm_0033The new high-efficiency circulators of the Calio-Therm S NC series are maintenance-free glandless pumps designed for pumping drinking water in closed circuits, which are commonly found in single-family or two-family houses as well as in larger building projects.
Like the other Calio pumps the new circulators offer a high-efficiency permanent magnet motor to achieve top efficiencies. With one-touch operation the flow rate can be adjusted via three speed levels. In the event of a blocked rotor the motor stops automatically, and a fault is indicated. Three LEDs display the operating status. The screwed connections are available in dimension Rp ½ internal thread (EN 10266) or G 1 ¼ external thread (DIN ISO 228). The maximum flow rate equals 0.7 m³/h. The pump’s maximum head is 1.0 m. The drinking water temperature should measure between +5 °C and +65 °C.