J.N. Thermocontrols
Ghatkopar West, Mumbai, Maharashtra
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Sight Flow Indicators

Prominent & Leading Manufacturer from Mumbai, we offer full view sight flow indicators and double window sight flow indicators.

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We specialize in offering a best-in-class Full View Sight Flow Indicators to our valuable patrons. The offered range is acknowledged for feature like blow hole free investment casting body and electro polish finish for better resistance to surface corrosion. These full view sight flow indicator are recommended where maximum visibility is desired on low pressure applications, which is up to 8 kg/cm2. Used in vertical or horizontal lines with a negligible pressure drop, our range is ideal for visual check of the presence, colour & condition of liquid, where there is intermittent flow, partially filled lines or entrained air.


  • Excellent functioning
  • Long functional life
  • Easy to install and use

Other Details:

  • Glass tubes: Borosilicate buttress
  • Nuts-bolts and stud: M.S./S.S. 304, M.S./S.S. 306
  • Materials of flanges: WCB/M.S., CF8/SS304, CF8M/SS316
  • Flange standards: A.S.A, 150 RF, A.S.A 300 RF, B.S. 10 table E or F
  • Lining (optional): PTFE/PFA/TFE (0.8 TO 1 mm thick)
  • Sealing: PTFE (standard)
  • Operating temperature: 210° C Max. with PTFE sealing
  • Optional sealing material: PTFE envelope with Neoprene insert/viton/silicone
  • Flange to flange distance: 100 mm/125 mm/195 mm (+-3 mm)
  • Hydraulic test pressure: For size 15 to 50 mm 8 Kg/cm, 2/65 to 100 mm, 5 Kg/cm, 2/150 mm 3 Kg/cm2
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Being a client-centric organization, we are engaged in offering a wide range of Double Window Sight Flow Indicators. Available in the sizes of 15 mm to 200 mm in all types of flanged & threaded process connections, double window sight flow indicators can be supplied optionally at max. op. temp. 200° C.




  • Light weighted investment casting body eliminates the need of heavy pipe support and also reduces stress corrosion
  • Blow hole free investment casting body
  • Electro polish finish for better resistance to surface corrosion


Other Details:


  • Glass: Toughened soda lime
  • Body & cover plate: WCB/M.S., CF8/SS304, CF8M/SS316
  • Lining (optional): PTFE/TFE/PFA coated for corrosive application
  • Gaskets: PTFE (Standard)/Neoprene - Viton - Silicone (Optional)
  • Nuts & bolts: CS/ASTM A 194 & 193/SS
  • Max. op. temp: 200° C
  • Max. op. pressure: 20 Kg/cm2
  • Process connection: Flanged as per A.S.A & B.S standards or screwed
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J.N. Thermocontrols

Nilesh Desai (CEO)
No. 210, Malwa Industrial Co Operative Society Limited, Patanwala Industrial Compound Opposite Shreyas Takies, LBS Marg, Ghatkopar West
Mumbai - 400086
Maharashtra, India
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