List of products by brand OMC

OMC – Technical profile of a pneumatic and electro-pneumatic process control instrumentation manufacturer

OMC is an Italian manufacturer of pneumatic and electro-pneumatic process control instruments. Its range includes I/P converters, pneumatic and electro-pneumatic positioners, pneumatic controllers, pneumatic transmitters, limit switch boxes and air filter regulators.

The OMC range represented through Philippopoulos S.A. includes:

I/P converters,
linear and rotary positioners,
pneumatic controllers,
pneumatic differential pressure transmitters,
position feedback boxes,
airsets and accessories.

I/P converters convert an electrical current signal, typically 4–20 mA, into a proportional pneumatic output signal. They are used when an electronic controller or DCS must drive a pneumatic actuator, relay or positioner.

Pneumatic and electro-pneumatic positioners are installed on control valves. They compare the input signal with the actual valve position and modulate air pressure to the actuator. Linear positioners are used on globe valves and diaphragm actuators. Rotary positioners are used on ball valves, butterfly valves, plug valves and dampers.

Pneumatic controllers provide local pressure, temperature or flow control without electronic control hardware. They are useful in older pneumatic plants, hazardous areas or local utility stations.

Differential pressure transmitters convert DP into pneumatic output signals. They may be used for flow measurement through primary elements, filter monitoring or level measurement in closed tanks.

Air filter regulators are critical for stable operation. Poor instrument air quality can cause unstable output, slow response, sticking or positioner failure.

OMC equipment should be specified as part of the complete control valve instrumentation package: controller signal, I/P converter, positioner, actuator, airset, feedback and hazardous area requirements must be evaluated together.

Showing 1-21 of 21 item(s)

I/P Converter - PC13 | OMC | Philippopoulos s.a.

I/P Converter - PC13 | OMC

I/P Converter - PC13 | OMC

I/P Signal Converter OMC PC13 The OMC PC13 is an electro-pneumatic signal converter for panel mounting, designed to convert DC current signals to proportional pneumatic pressure. It is typically installed as an interface between electronic controllers and pneumatic valve actuators in process control loops for flow, pressure, temperature, or level...

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I/P Converter - PC15 | OMC | Philippopoulos s.a.

I/P Converter - PC15 | OMC

I/P Converter - PC15 | OMC

I/P Signal Converter OMC PC15 The OMC PC15 is a two-wire field-mounted electro-pneumatic converter designed to convert a 4–20 mA signal into a proportional pneumatic output pressure. It is typically installed as an interface between an electronic controller and a pneumatic actuator on a linear control valve. Application Scope Analog control valves with...

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I/P Converter - PC18 | OMC | Philippopoulos s.a.

I/P Converter - PC18 | OMC

I/P Converter - PC18 | OMC

I/P Signal Converter OMC PC18 The OMC PC18 is a two-wire field-mounted electro-pneumatic converter designed to convert a DC electrical signal into a proportional pneumatic output up to 8 bar. It is intended for pneumatic actuators requiring higher control pressures, where standard 3–15 psi ranges are insufficient for process requirements. Integration in...

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Linear Positioner - PTL7L | OMC | Philippopoulos s.a.

Linear Positioner - PTL7L | OMC

Linear Positioner - PTL7L | OMC

OMC PTL7L – Limit Switch and Position Feedback Box for Linear Valves OMC PTL7L is a position monitoring unit for linear pneumatic actuators. It is not a positioner with pneumatic output; it is used for end position indication or continuous 4–20 mA feedback to PLC, DCS, or automation panels. Mounting is via bracket according to IEC 534 / IEC 60534...

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Linear Positioner - RE01 | OMC | Philippopoulos s.a.

Linear Positioner - RE01 | OMC

Linear Positioner - RE01 | OMC

OMC RE01 – Linear Electro-Pneumatic Positioner The OMC RE01 is an analog electro-pneumatic positioner designed for linear control valves. It accepts a 4–20 mA input signal, compares the control signal with mechanical position feedback, and modulates pneumatic pressure to the actuator to ensure valve stroke follows the controller setpoint. The positioner...

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Linear Positioner - RE20L | OMC | Philippopoulos s.a.

Linear Positioner - RE20L | OMC

Linear Positioner - RE20L | OMC

OMC RE20L – Linear Smart Positioner 4–20 mA The OMC RE20L is a digital electro-pneumatic positioner for linear control valves with pneumatic actuators. It accepts a standard 4–20 mA DC analog signal from PLC/DCS or process controllers and modulates pneumatic output to the actuator, ensuring valve stem position tracks the setpoint. The microprocessor...

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Linear Positioner - RP01 | OMC | Philippopoulos s.a.

Linear Positioner - RP01 | OMC

Linear Positioner - RP01 | OMC

OMC RP01 – Pneumatic Linear Positioner The OMC RP01 is a pneumatic positioner designed for linear pneumatic actuators on control valves. It accepts a control signal of 3–15 psi / 0.2–1 bar and modulates the actuator supply pressure to compensate for differential pressure changes, stem friction, and actuator hysteresis. Technical Data Input signal: 3–15...

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Linear Smart Positioner - YT3300L | OMC | Philippopoulos s.a.

Linear Smart Positioner - YT3300L | OMC

Linear Smart Positioner - YT3300L | OMC

OMC YT3300L – Smart Positioner for Linear Valves The YT3300L is a digital electro-pneumatic positioner designed for linear pneumatic actuators. It accepts a 4–20 mA DC input signal and modulates output air pressure to the actuator, ensuring valve travel matches the controller setpoint. Product documentation lists it as single-acting, but the series manual...

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Linear Smart Positioner - YT3400L | OMC | Philippopoulos s.a.

Linear Smart Positioner - YT3400L | OMC

Linear Smart Positioner - YT3400L | OMC

OMC YT3400L – Smart Positioner for Linear Actuators The OMC YT3400L is a digital electro-pneumatic positioner designed for linear control valves with single-acting pneumatic actuators. It accepts a 4–20 mA DC control signal from PLC, DCS, or standalone controllers and modulates supply air to the actuator to align valve stroke with the setpoint. The...

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Pneumatic Controller - Transmitter - SERIE 350 | OMC | Philippopoulos s.a.

Pneumatic Controller - Transmitter - SERIE 350 | OMC

Pneumatic Controller - Transmitter - SERIE 350 | OMC

Pneumatic Controller / Transmitter OMC Series 350 The OMC Series 350 is a pneumatic indicating controller and transmitter designed for industrial process control of temperature, pressure, and, depending on configuration, flow. It measures the process variable, compares it to the set point, and provides a pneumatic output signal to a control valve....

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Pneumatic Controller - Transmitter - SERIE 80 | OMC | Philippopoulos s.a.

Pneumatic Controller - Transmitter - SERIE 80 | OMC

Pneumatic Controller - Transmitter - SERIE 80 | OMC

Pneumatic Controller / Transmitter OMC Series 80 The OMC Series 80 is a pneumatic indicating controller or transmitter designed for temperature and pressure control in industrial processes involving liquids, gases, or steam. The measured value is displayed on the scale, compared to the set point, and a pneumatic signal is generated for the control valve....

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Relative & Differential Pressure Transmitter - DP5-A | OMC | Philippopoulos s.a.

Relative & Differential Pressure Transmitter - DP5-A | OMC

Relative & Differential Pressure Transmitter - DP5-A | OMC

OMC DP5-A – Pneumatic Differential Pressure Transmitter The DP5-A is a pneumatic differential pressure transmitter operating on a force-balance principle. The measuring unit detects ΔP via a diaphragm capsule, while the transmission unit converts displacement into a proportional pneumatic output signal. Signal generation utilizes a flapper-nozzle relay...

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Relative & Differential Pressure Transmitter - DP5-B | OMC | Philippopoulos s.a.

Relative & Differential Pressure Transmitter - DP5-B | OMC

Relative & Differential Pressure Transmitter - DP5-B | OMC

OMC DP5-B – Pneumatic Low ΔP Differential Pressure Transmitter The DP5-B is a pneumatic differential pressure transmitter designed for instrument loops operating at 20–100 kPa, 0.2–1 bar, or 3–15 psi. It operates on a force-balance principle: the measuring unit receives differential pressure via a 5" capsule, while the transmission unit converts this...

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Relative & Differential Pressure Transmitter - DP5-D | OMC | Philippopoulos s.a.

Relative & Differential Pressure Transmitter - DP5-D | OMC

Relative & Differential Pressure Transmitter - DP5-D | OMC

OMC DP5-D – Pneumatic Differential Pressure Transmitter for High Static Pressure The DP5-D is a pneumatic differential pressure transmitter designed for applications where ΔP is relatively low but line static pressure is high. It operates on a force-balance principle: the measuring capsule senses the differential pressure, and the transmission unit...

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Relative & Differential Pressure Transmitter - DP5-H | OMC | Philippopoulos s.a.

Relative & Differential Pressure Transmitter - DP5-H | OMC

Relative & Differential Pressure Transmitter - DP5-H | OMC

OMC DP5-H – Pneumatic Differential Pressure Transmitter The DP5-H is a pneumatic differential pressure transmitter designed for ΔP measurements in bar, not for low kPa ranges. Measurement is achieved via a mechanical bellows element, with conversion to a pneumatic signal using a flapper-nozzle relay and feedback bellows, operating on a force-balance...

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Relative & Differential Pressure Transmitter - DP5-R | OMC | Philippopoulos s.a.

Relative & Differential Pressure Transmitter - DP5-R | OMC

Relative & Differential Pressure Transmitter - DP5-R | OMC

OMC DP5-R – Pneumatic Gauge Pressure Transmitter with Remote Seal The DP5-R is a pneumatic gauge pressure transmitter designed for applications where the sensing element must be isolated from the process medium. The bellows capsule is connected to a remote diaphragm seal via a capillary tube, forming a welded, vacuum-filled system. The transmission unit...

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Limit Switch for Rotary Positioner - PTL7R | OMC | Philippopoulos s.a.

Limit Switch for Rotary Positioner - PTL7R | OMC

Limit Switch for Rotary Positioner - PTL7R | OMC

OMC PTL7R – Limit Switch Boxes for Rotary Positioners The OMC PTL7R is a limit switch box, optionally with a 4–20 mA position transmitter, designed for rotary valves and pneumatic actuators. It mounts on actuators with NAMUR interface or directly on OMC positioners, using axial coupling to minimize mechanical backlash in position feedback. Construction...

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Rotary Positioner - R99E | OMC | Philippopoulos s.a.

Rotary Positioner - R99E | OMC

Rotary Positioner - R99E | OMC

OMC R99E – Electro-Pneumatic Positioner for Rotary Actuators The OMC R99E is an analog electro-pneumatic positioner designed for single or double acting rotary pneumatic actuators. It accepts a 4–20 mA control signal from PLC, DCS, or controller. The device compares the input signal to the actuator shaft rotation using a force-balance mechanism. Output is...

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Rotary Positioner - R99P | OMC | Philippopoulos s.a.

Rotary Positioner - R99P | OMC

Rotary Positioner - R99P | OMC

OMC R99P – Pneumatic Positioner for Rotary Actuators The OMC R99P is a pneumatic positioner designed for single- or double-acting rotary actuators. It accepts a control signal of 3–15 psi / 0.2–1 bar, compares the controller input to the actuator shaft angle, and delivers a boosted pneumatic output to the actuator. Operation is based on the force-balance...

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Rotary Smart Positioner - YT3300R | OMC | Philippopoulos s.a.

Rotary Smart Positioner - YT3300R | OMC

Rotary Smart Positioner - YT3300R | OMC

OMC YT3300R – Smart Positioner for Rotary Actuators The OMC YT3300R is a digital electro-pneumatic positioner designed for rotary pneumatic actuators. This model is specified as double-acting; the YT-3300/3301 manual covers both single and double-acting variants by code. It accepts a 4–20 mA DC control signal and modulates supply air to the actuator to...

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Rotary Smart Positioner - YT3400R | OMC | Philippopoulos s.a.

Rotary Smart Positioner - YT3400R | OMC

Rotary Smart Positioner - YT3400R | OMC

OMC YT3400R – Smart Positioner for Rotary Actuators The OMC YT3400R is a digital electro-pneumatic positioner designed for double-acting rotary pneumatic actuators. It accepts a 4–20 mA DC control signal and modulates output air pressure to the actuator, ensuring valve position tracks the PLC/DCS setpoint. The product is classified as flameproof type with...

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