BX70 BX150 BX240 | Schreiber SM413 SM433

The BX70, BX150 and BX240 These are position transmitters based on LVDT (Linear Variable Differential Transformer) technology, manufactured by Schreiber Messtechnik. They are designed to provide accurate measurement of linear displacement and position of control valves in critical steam turbine and process industry applications.

These sensors are usually ordered as OEM spare parts under the references BX70, BX150 and BX240. They correspond respectively to the Schreiber models SM413.70.1.X33, SM413.150.1.X33 and SM433.240.1.X33, with measuring ranges of 70 mm, 150 mm and 240 mm.

The same references may appear in spare parts lists or technical documentation under the OEM codes 2-08-04011-032, 2-08-04020-032 and 2-08-04018-032. These references are frequently associated with valve applications from manufacturers such as Bopp & Reuther e IMI Critical Engineering (CCI).

The sensor converts the linear movement of the valve stem or actuator into a proportional electrical signal, normally 4-20 mA, which is used by PLC, DCS or control systems to know the real position of the valve at all times.

The most common applications include HP/LP Bypass Valves, turbine control valves (TCVs), main steam valves (MSV), feed water control valves and steam conditioning systems in power plants and industrial facilities.

The electronics are integrated into the sensor itself, allowing for a direct output without the need for external amplifiers. Depending on the version, the SM41/SM43 series can be supplied with standard industrial outputs. 4-20 mA, 0-20 mA, 0-5 V either 0-10 V.

GUEMISA supplies original Schreiber Messtechnik position transmitters and can help identify equivalents from OEM references, nameplates, spare parts lists or valve technical documentation.

Common search references: BX70, BX150, BX240, SM413.70.1.X33, SM413.150.1.X33, SM433.240.1.X33, 2-08-04011-032, 2-08-04020-032 and 2-08-04018-032.