Carbon Steel 'Style F' Flap Type Flow Indicator

Carbon Steel 'Style F' Flap Type Flow Indicator


in-stock Available to Order

Key Features
  • Sight Glass
  • Flap Type Flow Indicator
  • Flanged or screwed connections
  • Carbon Steel body
  • Sizes 1/4" to 6"


Carbon Steel 'Style F' Flap Type Flow Indicator

Our Carbon Steel 'Style F' Flap Type Flow Indicator is used to check the flow rate of a liquid in an pipeline via a flap and readable scale. which is ideal for visually checking the flow.

This sight indicator can be used in vertical or horizontal lines and is ideal as a plant safety device where you need to maintain a constant flow, for example in lubricating or cooling systems.

It is available with flanged or screwed connections and in sizes 1/4" to 6" depending on connection.

The glass windows are held in place by stainless steel covers and screws, and sealed with PTFE gaskets, giving superior protection. For ease of maintenance the glasses can be individually removed and replaced.

For standard applications the indicator is fitted with toughened soda lime glass discs to BS3463 and rated to 16 bar.

For steam and condensate we recommend toughened borosilicate glass, while for alkaline liquids mica discs can be used to protect the glass.

Key Features:

  • Carbon steel body
  • PTFE internal gasket
  • CE marked and fully PED compliant
  • Designed and manufactured in the UK


 Carbon Steel 'Style F' Flap Type Flow Indicator Datasheet

Technical Attributes

End Connection Flanged ANSI 150
Size 1/4", 3/8", 1/2", 3/4", 1", 1 1/2", 2", 2 1/2", 3", 4", 6"
Body Material Carbon Steel
Design Double Window, Flap
Media Steam, Liquid
Manufacturer VOLT