FELUWA MULTISAFE® double hose-diaphragm pumps
for abrasive, aggressive and toxic media

Pump Control Options

MULTISAFE® double hose-diaphragm pumps are designed to avoid sudden deviation from admissible working conditions and unplanned downtime. For additional backup of failsafe characteristics, MULTISAFE® pumps utilise an overall diagnostic system for permanent condition monitoring of essential components and parameters. The readings are saved with trend and allow for complete backtracking of the history over several weeks.

Pump Condition Guard BASIC - Control and monitoring system for FELUWA MULTISAFE® pumps

Pump Condition Guard BASIC is a control, diagnostic and monitoring system developed for FELUWA MULTISAFE® double hose-diaphragm pumps. It allows for local (LCP) pump control (starting and stopping) and monitoring of the operating conditions by means of the sensors applied to the pump. Optional link to the client’s control system (hard-wired).

All presettings such as interlocks, alarms, error messages and shutdown conditions are integrated as standard item to ensure safe pump operation. The Pump Condition Guard can optionally be expanded by a frequency converter for flow control and condition monitoring of the motor.

Pump Condition Guard BASIC using the example of a FELUWA MULTISAFE® double hose-diaphragm pump in triplex design

Pump Condition Guard SMART - Control and monitoring system for FELUWA MULTISAFE® pumps

The Pump Condition Guard SMART refers to an extension of the control, diagnostics and monitoring system „Pump Condition Guard BASIC“ that has been especially developed for FELUWA MULTISAFE® double hose-diaphragm pumps. In addition to the basic version, the smart version allows for communication with the local control system by means of PROFINET connection, for example. Via an Ethernet interface the higher ranking DCS can be connected to the local control system (LCP) so that signals for starting and stopping or flow variation can be implemented by the integrated PLC. Local control of the pump can be effected via the LCP.

Parameters and operating conditions measured by the Pump Condition Guard are fully indicated and visualised at the touch panel. Moreover, the Ethernet interface allows for transmission to the higher ranking DCS and evaluation accordingly.

Pump Condition Guard SMART using the example of a FELUWA MULTISAFE® double hose-diaphragm pump in triplex design

Touch Panels

FELUWA Touch Panel

For early detection of faults and with the objective of ensuring maximum availability FELUWA supports the redundant nature of MULTISAFE® double hose-diaphragm pumps by means of an overall diagnostic system. Touch panels, which are integrated into the control cabinet, give the pump a transparent character and provide the operator with information on current operating parameters and the condition of fundamental parts. Bus systems link the touch panel to local process control, whereby Ethernet provides best conditions for communication and control of system frequency converters, PLC, touch panels and the FVPMS (FELUWA Valve Performance Monitoring System).

The pump can either be controlled via the frequency converter panel, the FELUWA touch panel of the local control or via client’s DCS system with setpoint setting
(via analogue input 4 to 20 mA). Touch panels provide time-related recording and direct or remote insight into check valves (via FVPMS), primary and secondary hose-diaphragms (via HDG), suction and discharge pressure (via SG and transducer), hydraulic and gearbox oil temperature (via TG), stroke rate, pre-compression of accumulators as a part of pulsation dampeners, oil lube systems of crank drive and intermediate gear (including temperature, pressure and flow), motor (including measurement of torque, absorbed power and FELUWA pump speed), transformer and frequency converter (variable frequency drive).


  • Parameterisation
  • Access to service intervals
  • Access to specific documentation
  • Setup of a bidirectional VPN conduit for web-based service by a FELUWA service technician

Felwebguard - The tailored remote maintenance tool

The Internet – medium for data transport: In times of “Industry 4.0” FELUWA increasingly focuses on wireless data communication and the users benefit from the new prospects resulting thereof.

The FelWebGuard (FWG) system allows for remote PC access to the control unit of the pump, which enables the operator to access the control unit via the Internet and view all the current data. In addition, a safe, bidirectional VPN conduit can be set up for remote access to the control unit. All data and trends can be checked on a web interface so that the planning of maintenance and smaller issues can be solved by remote action.

The system is linked to the Internet. In the event that actual values differ from the programmed nominal values, the system will email an according notification to a FELUWA service technician. The system not only allows for higher availability and productivity, but also for a reduction in service costs.