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RMA Metering Pakistan
RMA Products Profile

Precision Metering for Every Pipeline Need

RMA Control

Pneumatic Control

Together with our niwatec NWS Scotch Yoke actuator, our NWRP Rack and Pinion actuator or our NWLA linear actuator, the pneumatic control guarantees a trouble-free and safe procedure during all kinds of operating conditions.

Together with our customers, sophisticated solutions have been developed: SAV, HIPPS, standard open & close controls or position regulating systems can be implemented with high quality components. Our PNE pneumatic control can be equipped with a hand wheel or a hydraulic cylinder with hand pump, both working independently of the control.
The modular design facilitates maintenance and the integration of security relevant components such as linebreak control systems, high- or low-pilots, differential pressure switches or ESD-valves.

Standard Features

  • Operational pressure up to 16 bar
  • For double or single acting actuators (with spring reset)
  • Electric explosion protection according to Ex-e, Ex-d or Ex-ia
  • CE and ATEX 94/9/EG certified
  • Control voltage: 24 V DC, 110 V DC , 220 V DC or 230 V AC
  • Temperature range: -29 °C to +60 °C
  • Control components mounted in stainless steel casing or – on request – on stainless steel panel
  • Tubing and fittings made of stainless steel, manufacturer of fittings according to customer‘s specification
  • Position feedback „open“ or „closed“

Optional Features

  • Manual emergency operation by means of hand wheel or hydraulic hand pump
  • Extended temperature range: -60 °C to +60 °C
  • Low or high pilots for pipeline protection
  • Coils with low power consumption (approx. 3 W per valve)
  • Linebreak system (electronic or mechanic)
  • Differential pressure switch (electronic or mechanic)
  • ESD , Partial Stroke or SSV function
  • Regulating control system
  • Pressure accumulator for emergency strokes corresponding to PED, GOST, or ASME VIII div. 1 (ARH or DPEM), certification depending on country of destination, number of strokes according to customer‘s specification
  • Pressure switch for signalisation of minimum pressure needed
  • Local / remote switch (maintenance switch)
  • Control cabinet heating incl. thermostat
  • Cathodic separation
  • Fire protection

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