Relay Pressure Switches in Pump & Pipeline Control

Eliminate drift and unreliable trip points in critical pressure interlocks

Relay Pressure Switches in Pump Control

Rugged, Integrated Pressure and Switching Solution

Stand-alone mechanical pressure switches used in oil and gas pump and pipeline control are susceptible to drift, hysteresis, slow response and contact wear, resulting in inconsistent trip points and reduced reliability of critical interlocks. These challenges are intensified in harsh upstream and downstream environments, where vibration, temperature cycling and exposure to corrosive or high-pressure media accelerate calibration drift and device degradation.

The Rosemount 4051S Pressure Transmitter overcomes these limitations by generating switch actions from a stable, high-accuracy pressure measurement rather than a mechanical sensing element. Its SuperModule architecture delivers exceptional long-term stability with minimal drift, even under demanding operating conditions, while integrated solid-state relay outputs provide fast, precise and repeatable actuation. By integrating pressure measurement and switching into a single rugged instrument, the Rosemount 4051S Pressure Transmitter enhances control integrity, reduces maintenance intervention and strengthens equipment protection to support safer, more reliable operation across oil and gas production, transmission and refining processes.