Stainless steel flush diaphragm pressure sensor
1/2 - 2", max. 400 °F | 42/742 Red Valve

Series 742 can be flushed or rodded clean without removal from line or disassembly
Protects and isolates instrumentation from chemical or slurry plugging
Lower installation and operating costs

Materials of Construction

Body (Non Wetted) and Upper & Lower Case (Wetted) Carbon Steel, 316 Stainless Steel, or PVC Teflon coated Buna-N or Viton also available
Sensing Fluids: Ethylene Glycol & Water (200°F), Vegetable Oil (230°F), Silicone Oil (400°F)
Available Elastomers

Description

Red Valve's Series 42 Pressure Sensor and Series 742 Diaphragm Seal isolate and provide accurate instrument reading of gauges, transmitters, and pressure switches, making them ideal for use in chemical or slurry service. The Series 42 and Series 742 can be mounted in any flow direction, and have threaded ends manufactured to standard NPT pipetap dimensions for smaller pipelines. The principle of operation is simple. As process pressure is sensed by the 360° elastomer sleeve, the captive fluid transfers the process pressure to the instrument, providing a consistent, accurate reading.