Main features & Overview


The WE Performance Level 'c' Series are pressure sensors for use in high temperature applications where the process temperatures may reach 315°C (600°F) such as high temperature engineered polymers. T

he W Series utilizes standard melt pressure principles and construction; strain sensing technology is bonded foil strain gage.

A near incompressible mixture (diathermic oil) is used for pressure transmission.


  • Performance Level PL 'c'
  • Pressure ranges from: 0-35 to 0-1000 bar / 0-500 to 0-15000 psi
  • Accuracy: < ±0.25% FS (H); < ±0.5% FS (M)
  • Fluid-filled system for temperature stability
  • Oil filling meets FDA requirements CFR 178.3620 and CFR 172.878
  • Oil filling volume: WE0 (30mm3); WE1, WE2 (40mm3)
  • 1/2-20UNF, M18x1.5 standard threads; other types available on request
  • Other diaphragms available on request
  • Autozero function on board / external option
  • 17-7 PH corrugated diaphragm with GTP+ coating for ranges below 100 bar-1500 psi


Gefran product range brochure
Melt pressure sensors
4.0 Gefran product catalog
4.0 plastic application catalogue
WE PL 'c' Datasheet
User’s Manual – Pressure Sensors for high temperature
WE-W7 PL 'c' - User Manual


EU Conformity declaration_not amplified Melt K min 500bar
Performance Level 'c' Certification ME/M7, WE/W7, KE/K7 Series
GTP+ FDA Certificate
EU conformity declaration_W series FS min 500bar PL c
EU conformity declaration_W series FS over 500bar PL c
UK Conformity declaration - Melt W min 500bar PLc
UK Conformity declaration - Melt W over 500bar PLc