Stainless Steel 3-Way Manifold Valve for Rosemount Pressure Transmitter With NPT Thread Multi-valve Manifold Yokogawa
1.Definition & Function
A transmitter manifold valve is an integrated multi-valve module specifically designed for use with pressure, differential pressure (DP), or level transmitters. It is mounted directly onto the transmitter's process connections, serving as the critical interface component between the transmitter and the process piping. Its core function is to provide a safe and efficient operational procedure for isolating the transmitter, performing zero calibration, conducting online maintenance, and venting/draining the impulse lines without interrupting the process flow.
2.Types & Configuration
| Product name | Typical Valve Configuration & Diagram | Primary Application |
|---|---|---|
| 3-Valve Manifold | Typically consists of two isolation valves (high-pressure side and low-pressure side) and one equalizing/balance valve (connecting the two chambers). | The standard configuration for differential pressure (DP) transmitters. Used for measuring flow, level (in pressurized vessels), filter pressure drop, etc. |
| 5-Valve Manifold | Based on the three-valve design, it adds two vent/drain valves (one at the end of each impulse line, high-pressure and low-pressure sides). | Used for DP measurement applications requiring high cleanliness or where media is prone to condensation, such as steam flow or viscous liquid level measurement. |
| 2-Valve Manifold | Comprises two isolation valves only, with no equalizing valve. | Used with pressure or absolute pressure transmitters. Primarily for single-pressure measurements. |
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