A Simple, Serviceable Design

Key elements of the MPFC design are simple, serviceable o-ring seals, the GW clean-out port, high optical efficiency, slip jointed conduit-ready connections, sapphire windows, a clean flow pattern, and o-ring sealed optics to prevent ambient moisture infiltration. The probe can be field disassembled for o-ring service and reassembled without changing the optical pathlength, a crucial parameter for repeatable measurements.

Process-Resistant Construction

The Multi-Purpose Flow Cell comes standard in 316L stainless steel but is available in many other alloys. Suitable o-ring materials must be specified to meet your process chemistry and safety requirements. Common materials, such as Viton, Kalrez®, EPDM, etc., are readily available. Please consult appropriate resources for temperature specifications of various o-ring materials and chemical compatibility with your process.

Dual Seal For Added Safety

Our multi-purpose flow cells now boast a dual seal at the sapphire “window-to-process” interface. This doubles protection for the expensive internal optical lenses.

Operating Range

The Multi-Purpose Flow Cell operates over the following pressures and temperature ranges:

• Temperatures to 300 °C (o-ring material dependent)
• Pressures to 500 psi (o-ring durometer dependent)
• A certified version is available that is rated to 1000 psi
• Available in five standard pathlengths 1, 2, 5, 10, and 20 mm

Heated Version Available

A version of the MPFC, drilled to accept a heating or cooling fluid, is also available. While the heat exchanged is not sufficient to significantly impact a rapidly flowing sample, it can be used to maintain the temperature of a preconditioned sample.

Exceptional Light Transmission

Like other Guided Wave optical probes, the Multi-Purpose Flow Cell provides exceptional optical performance. Typically, peak transmission exceeds 50%. That means more signal, lower measurement noise translating to lower limits of detection.