FLOW CONTROL PRODUCTS

Sight Glass

PG71 sight glasses are designed to check the flow of cooling water, lubricants, air, steam, etc. in a pipe line. They may also be used to check the functioning of steam traps. Sight glass is simple device which is also an effective back-flow preventer. Sight glass is suitable for horizontal installation.

USE:

Water, oil, steam, air and other non- corrosive media

Features:

  • Sight glass is used in pipeline to check flow of water, air, lubricants and steam.
  • Maintenance free.
  • Available in various sizes.
  • Sight glass is very easy to install and operate.
Sizes: 

½”, ¾”, 1″

Connections: 

½”, ¾”, 1″

INSTALLATION:

The sight glass should be installed in a horizontal pipe line with the glass at the top. Enough space should be left open above the glass to facilitate checking of the flow/ operation. In cases where the device is fitted to check the operation of a steam trap, sight glass should be fitted at a distance of 5 to 6 feet downstream of the trap

Advantages:

  1. Easy to operate
  2. Sight glass is maintenance free
  3. Very cheap
  4. Used to check flow of fluid easily.

LIMITING CONDITIONS:

PMA: Maximum Allowable Pressure 228 Psig
TMA : Maximum Allowable Temperature 400 F
Cold Hydro test Pressure 350 Psi

MATERIAL:

SR NO. PART MATERIAL QTY. (Nos.)
1 Body Cast Iron 01
2 Cover Cast Iron 01
3 Glass Toughened Borosilicate 01
4 Ball PTFE 01
5 Gasket Non CAF 02

Imperial

PMA (psig) TMA (°F) Maximum Capacity (lbs/hr) Size
228/400 8660 11375 13410 22615 ½” ¾” 1” 1 ½”, 2”

Metric

PMO (bar) TMA (ºC) Capacity at PMO (kg/hr) Size
16 / 200 3935 5165 6090 DN15 DN20 DN25
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