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Flow Meter is introducing new FM Type Pressure Regulators  with a 4-20 mA output signal for ambulances. The devices are suitable for direct mounting on the oxygen cylinder and are equipped with a gauge that has a 4-20 mA continuous electric output signal to permit monitoring of feed pressure and interfacing with the control unit. Single stage products with cylinder attachments in conformity with the different reference standards of the countries of destination are equipped with rubber output connections to feed a distribution circuit through flexible tubes. The structure and connections are in chrome-plated brass. Produced with pre-calibrated output pressure, they are equipped with an appropriate relief valve to guarantee protection for any system anomalies. The special compact, robust construction makes these pressure regulators particularly suitable to feed oxygen distribution plants installed in mobile emergency units.