Ceramat WA 150-FOS



Automatic sensor lock-gate for extreme applications with ceramic sealing to the process.

Unique Lock-Gate Principle

The usual O-ring seal problems occurring in conventional retractable fittings are eliminated. The O-rings are replaced by two highly planar, polished ceramic disks which separate the calibration chamber from the process by a rotary movement.

The ceramic seal between calibration chamber and process is harder than steel and extremely resistant to chemical, thermal, and mechanical influences - a guarantor for highest availability and process safety.

The Ceramat® sensor lock-gate has proved particulary successful in extremely difficult process where standard O-ring seals fail.

The process-wetted outer housing (PVDF, PEEK, or steel) always remains static and is therfore not subjected to mechanical stress. The unit is driven by a compact pneumatic rotary-lift motor with positively controlled, integrated valves.

Maintenance without Process Interruption

The particular ease of maintenance of the sensor lock-gate is achieved by a well thought-out design that allows performing the few maintenance operations required on the site without the aid of a workshop. A unique feature is the easy separation of the complete drive unit under full process conditions.That means that the process medium - which might be corrosive, hot, toxic, and under pressure - remains reliably sealed off. This also allows cleaning the calibration chamber under process conditions when the sensor is broken.

Applications:

  • Highly corrosive processes: chlorine production, phosgenation
  • Processes with depositing, abrasive, and incrusting solids: flue gas desulfurization, gas scrubbers, sugar production (1st + 2nd carbonatation), dyes and pigment synthesis, special incrusting industrial waste-waters
  • Pulpy, fibrous media: cellulose, cosmetics, food
  • Organic and sticky residues: refinery wash waters, starch production

The Facts:

  • For extreme applications
  • Ceramic sealing to the process
  • Extremely high hardness (Mohs hardness 9) prevents wear on the sealing surfaces in abrasive media
  • Wear-resistant
  • High and constant tightness due to lapped and polished sealing surfaces
  • High mechanical strength
  • High temperature resistance
  • High chemical resistance
  • Sterilizable
  • Very high availability
  • Plug & Play for all process media thanks to central multiplug
  • Smooth, dirt-proof design
  • All maintenance can be performed on site
  • Drive easily replaceable under process conditions
  • Cyclone rinsing for optimum cleaning effect
  • 2 independent barriers with cavity rinsing
  • Electrode dismount guard in conjunction with Uniclean® 900 / Unical® 9000
  • Superior sensor immersion depth
  • Standard sensor length (225 mm)
  • Special version for electrodes with pressurizable liquid electrolyte (for 250 mm electrodes with electrolyte reservoir)
  • Process-wetted outer body, PVDF or PEEK, carbon reinforced

Specifications:

Permitted process tem 0 ... 120 °C, for sterilization: 130 ... 140 °C
Permitted process pressure 6 bars gauge pressure at 120 °C
Electrodes

225 mm, Pg 13.5 coupling
250 mm for pressurized liquid electrolyte sensors

Air supply (4) 5*) ... 7 bars, filtered 10...25 µm, oil- and condensate-free
Immersion depth Approx. 135 mm, measured from lower edge of flange to electrode tip
Process adaptations

Flanges DN 50 / DN 65 / DN 80 / DN 100
Flanges DN 65 / DN 80 with pneumatic deposit remover
Dairy pipe screw joint DN 50 / DN 65 / DN 80 / DN 100
Varivent DN 50 – 125

Outlet

Connection for hose grommet with coupling (Uniclean® 900 / Unical® 9000)
Internal shut-off by ceramic disks

Inlet

Multiplug connection for Uniclean® 900 / Unical® 9000
Internal shut-off by ceramic disks

Special functions Rinsing of inner cavities
Process-wetted materials

PEEK, carbon fibre reinforced, or
PVDF, carbon fibre reinforced:
ceramic (aluminum oxide);
O-rings made of EPDM, FKM (Viton), or FFKM (Kalrez, Chemraz, Perlast)

Housing 1.4571 stainless steel
Tightness IP 66

Connection to Unical® 9000 / Uniclean® 900

 Compact multiplug connection
Sensor protection in the process Integrated bulb guards made of PVDF (carbon-fibre reinforced) or PEEK (carbon-fibre reinforced)
Limit switches Non-contacting electrical limit position control in conjunction with Uniclean® 900 / Unical® 9000 or ZU 0631 standard media interface
Certificates

3.1 Material Certificate (optional)
ATEX II 1 GD CII

For product availability and pricing, contact:

sales@fibrephotonics.com
+44 (0) 845 557 6450

In partnership with Knick