MSA 467895 RP FLOW CONTROL REGULATOR FOR ALTAIR 4X AND 4XR

Product Description: MSA 467895 RP Flow Control Regulator

Primary Function:
The MSA 467895 RP (Replacement Part) is a precision flow control regulator designed to provide a consistent, calibrated sample draw rate for the MSA ALTAIR 4X and ALTAIR 4XR portable multi-gas detectors when used with an optional pump or aspirator kit. It ensures accurate gas delivery to the sensors, which is critical for reliable readings and worker safety.

Key Features and Specifications:

• Part Number: 467895

• 0-1000 PSI BAR, 25 L

• Compatibility: Specifically engineered for the ALTAIR 4X and ALTAIR 4XR portable gas detectors. (Note: It is not compatible with the newer ALTAIR 4X Pro or ALTAIR 5X models).

• Type: In-line, fixed-flow regulator.

• Flow Rate: Typically regulates and maintains a sample flow rate of approximately 500 cc/min (cubic centimeters per minute). This is the optimal flow rate for the sensor array in the ALTAIR 4X/4XR.

• Purpose: It is a critical component of the pump draw assembly (e.g., MSA Part #10081321 – Pump Kit). It protects the internal pump and ensures that gas samples are pulled at the correct speed for the sensors to analyze properly.

• Design:

  • Body: Durable, chemical-resistant plastic housing.

  • Fittings: Features barbed fittings designed to securely connect to standard tubing used in the pump system.

  • Filter Element: Often includes a sintered filter at the inlet to protect the regulator and pump from particulate matter and liquid ingress when sampling in dirty or wet environments.

Why It’s Essential (Application):
The ALTAIR 4X/4XR detectors are primarily diffusion-based units. However, for confined space entry, leak checking, or sampling from remote locations, an external pump is required to actively draw the air sample to the detector.

• Without this regulator, the pump could pull too much or too little air, leading to:

  • Inaccurate gas readings (false highs or lows).

  • Slower sensor response times.

  • Potential damage to the pump or sensors from excessive flow or particulate matter.

• With this regulator, it ensures a stable, controlled flow, resulting in:

  • Accurate Measurements: Sensors receive the sample at the designed rate.

  • Consistent Performance: Repeatable and reliable readings.

  • Pump Protection: Extends the life of the pump module.

  • Filtering: Provides basic particulate filtration.