Gefran K31-6-M-B02C-1-4-D-S Melt Pressure Transducer 200 Bar

Product Overview

The Gefran K31-6-M-B02C-1-4-D-S 2130X000X00, ordering code F049008, is a NaK-filled K3-series melt pressure transducer for demanding high-temperature polymer-processing measurements. The B02C code identifies a 0 to 200 bar measuring range. Its low-level 3.33 mV/V output is intended for strain-gauge inputs rather than a conventional current-loop input. Published K3-family information identifies process-temperature capability up to 538°C, while the permissible housing temperature and installation arrangement must be evaluated separately.

Main Features

• NaK-filled sensing system for high-temperature melt-pressure measurement.
• 0 to 200 bar calibrated range identified by code B02C.
• 3.33 mV/V bridge output with 0.5% FSO accuracy class.
• Six-pin electrical connection and 1/2-20 UNF process thread.
• Rigid stem and flexible-section construction for thermal separation.
• Complete S suffix must be retained and verified during ordering.

Technical Specifications

Compatible System and Applications

The K31 is intended for high-temperature melt systems whose pressure instrumentation accepts a strain-gauge bridge signal and can be calibrated in bar. It can be considered for extrusion, high-temperature polymer lines and related equipment where a NaK transmission medium is specified. The machine designer must separately assess process-medium compatibility, installation temperature gradients and applicable safety requirements.

Maintenance and Replacement Notes

Several distributor headings for F049008 contain inconsistent pressure descriptions. The B02C order-code interpretation and detailed product information indicate 200 bar, but the physical nameplate and calibration documentation must take precedence. Confirm input excitation, signal polarity and connector pin assignment before energizing the circuit. Do not twist or sharply bend the flexible section, and never install the diaphragm against solidified material.

Related Models

K31-6-M-P05M-1-4-D-H F073065 is a NaK-filled model calibrated for 5,000 psi and includes a different H suffix. W31-B02C configurations use an oil-filled sensing system rather than NaK. M31 variants use mercury filling and generally have a lower published process-temperature class. Pressure units, suffix options, diaphragm construction and filling systems must all be reviewed before substitution. Related models are provided for family reference only and are not automatically interchangeable.

Inquiry and Supply Notes

Request this device using both F049008 and the complete model string. A readable nameplate is particularly important because of conflicting third-party pressure headings. Confirm the 200 bar calibration, S suffix, stem and flexible-section dimensions, connector, diaphragm option and equipment input requirements before placing an order.