Product Description

Questtec Solution’s Sight Flow Indicator is straightforward and dependable way to determine the flow of liquid in a process line for low pressure industrial, sterile, and hygienic applications. Horizontal installation provides direct views through a transparent sight tube for clear visibility.  Minimal wetted parts and construction elements make the Questtec Sight Flow Indicator maintenance-free. Containing only an armored shield, sight tube, self-sealing Teflon® Max-Seal inserts, and Borosilicate sight tubing. Removal or disassembly of the Sight Flow is not required once installed, even for routine cleanings and inspections. Questtec Solution’s Sight Flow Indicators are 100% welded to secure bolting and solidify seals in cases of heavy vibration to prevent leaks.

Product Features

  • Single Tube (Model QSF) & Double Tube (Model QDSF) options available in Armored and Full View Styles
  • Borosilicate Glass & PTFE Teflon® wetted parts for high temp corrosive processes applications
  • Mechanical Press Fit Seal on the outside diameter of the glass sight tube. Designed to  eliminate stresses caused by differential expansion between the housing and sight tube preventing leaks
  • Polycarbonate Protective Shield for Double Tube Sight Flow Indicators. Safeguards  borosilicate glass with an open 360° view
  • 100% testing. Each internal chamber hydrostatic pressure tested
  • Variation of sizing options available diameters of 1” – 10” in lengths up to 60”
  • Flanged or Sanitary Fittings available on all models

Product Specifications

Size½” – 4”
Length8” – 60”
StyleSingle Tube & Double Tube
Shield MaterialsCPVC, Carbon, 316 SST
RatingFV-275 PSI