Prominent Gamma/ XL Solenoid Driven Metering Pump

Capacity range 8 – 80 l/h, 25 – 2 bar

The gamma/ XL is a smart, connectible solenoid-driven metering pump that is setting new standards in terms of productivity, reliability and cost-effectiveness.

Product Description

Prominent Gamma/ XL Solenoid Driven Metering Pump

The new solenoid-driven metering pump gamma/ XL is the enhancement to our proven gamma/ X and covers a capacity range from 8 – 80 l/h at 25 – 2 bar. The gamma/ XL also has other interfaces, for example CAN bus and Wi-Fi connections. This allows the gamma/ XL to network with all systems, devices and platforms. Like the gamma/ X, the gamma/ XL has an intuitive operating concept. The pump is adjusted using a click wheel and 4 additional operating keys. Pressure detection without wetted parts ensures maximum operational safety. Hydraulic error statuses, like “Gas in the dosing head”, “Overpressure” and “No pressure” can be detected.

Pressure fluctuations in the system are detected and compensated for, achieving a high level of dosing precision and reducing chemical consumption to the required level.

The last 300 events are retrospectively saved in the integral log book, which permits rapid analysis of the cause and troubleshooting.

Deviations from the metering volume or hydraulic fault statuses are immediately detected and corrected by the gamma/ XL. The pump’s operating menu includes ordering information for the wear parts required.

Designed as a smart product, it can also be connected to our web-based DULCOnneX fluid management platform. The user can use this to monitor his metering process in real time, avoid downtimes and generate reports fully automatically.


Your benefits

Simple adjustment of the capacity directly in l/h or in gph
Integrated pressure measurement and display for greater safety during commissioning and in the process
Bluetooth and Wi-Fi connection for the simple configuration and call-up of process data (optional)
Capacity adjustment range 1:40,000
Direct input of the required final concentration with volume-proportional metering tasks in concentration mode
Virtually wear-free solenoid drive, overload-proof and economical


Technical Details

  • Connection to process control systems via BUS interface, such as PROFIBUS®, Profinet, CANopen and Modbus
  • Illuminated 3” LCD and 3-LED display for operating, warning and error messages, visible from all sides
  • In non-automatic mode, stroke rate setting 1 stroke/h – 12,000 strokes/h, stroke length electronically continuously variable 0 – 100%, recommended 30 – 100%
  • Factor with external contact control 99:1 – 1:99
  • Batch operation with max. 99.99 l or 99,999 strokes/start pulse
  • Connector for 2-stage level switch
  • 3 additional ports, switched as digital inputs or outputs
  • Optional 0/4 – 20 mA output for remote transmission of stroke length, stroke rate and error messages
  • Optional relay module with 1 x switchover contact, 230 V – 8 A
  • Optional relay module with 2 x On, 24 V – 100 mA


Pump type Max. pressure Delivery rate Theor. stroke volume
bar l/h ml/stroke
gamma/ XL
GXLa 2508 25 7.5 0.63
GXLa 1608 16 7.8 0.65
GXLa 1612 16 12 1
GXLa 1020 10 19.6 1.63
GXLa 0730 7 29.4 2.4
GXLa 0450 4 49 4.08
GXLa 0280 2 78.5 6.54
gamma/ XL metering pumps with self-bleeding dosing head without bypass*
GXLa 1608 10 7 0.6
GXLa 1612 10 10 0.8
GXLa 1020 10 15 1.25
GXLa 0730 7 27.5 2.3


gamma/ XL metering pumps with dosing heads for higher-viscosity media have a 10 – 20 % lower capacity and are not self-priming with all feed chemicals. G 3/4 – DN 10 connector with d 16 – DN 10 hose nozzle.

* Suction lift (m WC) = Suction lift with filled dosing head and filled suction line
** With stainless steel design 6 mm connector width

All data refers to water at 20 °C.