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NAK Filled Melt Pressure Sensor – Voltage Output

Gefran KN

NAK – Sodium Potassium – Voltage Output
Pressure ranges from: 0-35 ato 0-1000 bar / 0-500 to 0-150000 psi
Accuracy: < ±0.25% FS (H); < ±0.5% FS (M) Hydraulic transmission system for pressure signal guarantees stability at working temperature (NaK) Liquid conforming to RoHS Directive. NaK is defined as a safe substance (GRAS).

Overview:

The KN Series are for use in high temperature applications where the process temperatures may reach 538°C (1000°F) such as high temperature engineered polymers.
The K Series utilizes standard melt pressure principles and construction, but uses a near incompressible NAK (Sodium Potassium) for pressure transmission.
The K Series strain sensing technology is bonded foil strain gage

Description:

  • Pressure ranges from: 0-35 ato 0-1000 bar / 0-500 to 0-150000 psi
  • Accuracy: < ±0.25% FS (H); < ±0.5% FS (M)
  • Hydraulic transmission system for pressure signal guarantees stability at working temperature (NaK). Liquid conforming to RoHS Directive. NaK is defined as a safe substance (GRAS).
  • Quantity of NaK contained per model: KN0 series (30mm3) (0.00183 in3) , KN1, KN2, KN3 (40mm3) (0.00244 in3)
  • 1/2-20UNF, M18x1.5 standard threads; other types available on request
  • Autozero function on board / external option
  • Stem drift Autocompensation function (SP version)
  • Inconel 718 diaphragm with GTP+ coating for temperatures up to 538°C (1000°F)
  • 15-5 PH diaphragm with GTP+ coating for temperatures up to 400°C (750°F)
  • HastelloyC276 diaphragm for temperatures up to 300°C (570°F)
  • 17-7 PH corrugated diaphragm with GTP+ coating for ranges below 100 bar-1500 psi

Further Information

https://www.gefran.com/products/pressure-sensors/melt-high-temperature/kn-nak-sodium-potassium-voltage-output/

Data Sheets

Gefran KN Data Sheet

Accessories