FD20 Immersion Fittings for pH/ORP Measuring Loops

Brand: Yokogawa Electric Corporation

The immersion fittings are designed for either pH or ORP (Redox) measurements in tanks, open vessels and drains. They have a "hoisting cable" for easy maintenance. 

The program includes fittings for mounting of 1 electrode, 3 electrodes, 4 electrodes or alternatively 3 electrodes and a cleaning system. 

As standard, the immersion length can be between 0.5 and 2 m. A flange for fixing in tanks, etc. is available on request.
Features
  • Designed for either pH or ORP measurements in tanks open vessels and drains.
  • Hoisting cable" for easy maintenance.
  • Pre-selected immersion length.
  • Wide choice of construction materials.
  • Flange mounting.
  • High degree of standardization reduces spare holding requirements.
  • Liquid earth pin for stable measurements.
  • Chemical cleaning system as an option.

Specifications

Approvals & Certifications

  • 3.1 According EN 10024

BSP Connection

  • G 1/2”

Cable Length

  • 0 to 32.80 feet (0 to 10 metres)

Cable Material

  • Stainless Steel (Twisted) - Hoisting Eye

Enclosure, Body Material

  • 316 Stainless Steel
  • Polypropylene (PP)
  • Polyvinyl Chloride (PVC)
  • Polyvinylidene Fluoride (PVDF)

Flange Size - 1-1/4” (DN 32)

  • 1-1/4” (DN 32) - 150# ANSI

Flange Size - 3” (DN 80)

  • 3” (DN 80) - 150# ANSI

Flange Size - 4” (DN 100)

  • 4” (DN 100) - 150# ANSI

Flange Size - 5” (DN 125)

  • 5” (DN 125) - 150#

Insertion 'U' Length

  • 19.69” to 78.74” (0.5 to 2 metres)

Materials of Construction

  • Ryton R 4 - Electrode Mounting Sets

Measuring Range

  • pH: 0 to 12.9 pH at 25° C (77° F)

Mounting

  • Flange Mount

NACE & NIST

  • NIST

O-Ring Material

  • EPDM
  • Silicone Rubber
  • Viton

Process Fitting Details

  • Immersion Fitting

Sensor, Probe Material

  • 316 Stainless Steel (SST Design) - Liquid Earth Sensor
  • Titanium (PP & PVDF Design) - Liquid Earth Sensor

Supply Pressure

  • psi: 0 to 43.51 (kPa: 0 to 300, bar: 0 to 3)

Temperature Range

  • -10° to 110° C (14° to 230° F) - for PP
  • -10° to 150° C (14° to 302° F) - for AISI 316 Stainless Steel
  • -10° to 160° C (14° to 320° F) - for PVDF
  • -10° to 60° C (14° to 140° F) - for PVC
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