WATSON SMITH LS6 2RT PNEUMATIC PRESSURE REGULATOR 402100R CONVERTER TYPE 100X 12:40

1. Product Name & Model:

• Manufacturer: Watson Smith (A renowned British manufacturer of highly reliable pneumatic and process control instrumentation, now part of the IMI Precision Engineering group).

• Product Line/Model: LS6 2RT

• Function: Pneumatic Pressure Regulator and Converter (Specifically, an I/P (Current-to-Pressure) Converter).

• Sub-type / Variant: Type 100X

• Part Number: 402100R (This is likely a specific part or kit number for this variant).

2. Key Features & Functionality:

• Core Purpose: This device is an I/P Converter (Current-to-Pressure). It converts a standard electrical control signal into a precise pneumatic output pressure.

  • Input (I): It receives an analog current signal, typically 4-20 mA, from a process controller, PLC, or control system.

  • Output (P): It provides a regulated pneumatic output pressure that is directly proportional to the input current signal. A common output range is 3-15 psi (or 0.2-1.0 bar), which is the standard signal for pneumatic actuators.

• “Pneumatic Pressure Regulator”: This name refers to its function of very accurately regulating its output air pressure based on the electrical command signal.

• Design: The LS6 series is known for its robust, industrial-grade design. The “2RT” likely specifies the port sizes (e.g., 1/4″ BSP) and the specific output range.

• Type 100X: This designation differentiates it from other models in the LS6 line, likely indicating specific internal components, performance specifications, or materials.

3. Technical Specifications (Inferred from Standard LS6 Models):

• Supply Pressure: Requires a clean, dry air supply at a pressure higher than the desired output (e.g., 20-30 psi / 1.4-2.0 bar supply for a 3-15 psi output).

• Input Signal: 4-20 mA DC (standard for process control).

• Output Pressure: Likely a standard range like 3-15 psi or 0.2-1.0 bar.

• Accuracy: Watson Smith regulators are known for high accuracy and reliability.

• Construction: Typically made from brass or stainless steel for corrosion resistance in industrial environments.

4. Intended Use & Context:
This is a critical component in automated industrial control systems, used to interface between electronic control systems and pneumatic actuators. Common applications include:

• Controlling the position of pneumatic valve actuators in process plants (chemical, oil & gas, power generation, water treatment).

• Operating pneumatic diaphragms, cylinders, and other devices based on an electrical signal.

• Used wherever a computer or PLC needs to precisely control a pneumatic process.