UL SUBJECT 327-2011
OUTLINE OF INVESTIGATION FOR TURBINE TYPE FLOW METERS FOR FIRE PROTECTION SYSTEMS (Issue Number 5)

Standard No.

UL SUBJECT 327-2011

Release Date

2011

Published By

Underwriters Laboratories (UL)

Latest

UL SUBJECT 327-2011

Scope

These requirements cover the construction and performance of turbine type water flowmeters for fire protection service of Type I@ Type II or Type III construction. The following items are outside the scope of these requirements: a) Materials and construction of the register; b) Evaluation of the by-pass components@ including the by-pass meter if provided@ except for body leakage and strength of body; c) Potability and; d) Stationary static gaskets@ such as cover gaskets and ring gaskets used between flanges.

UL SUBJECT 327-2011 history

• 2011 UL SUBJECT 327-2011 OUTLINE OF INVESTIGATION FOR TURBINE TYPE FLOW METERS FOR FIRE PROTECTION SYSTEMS (Issue Number 5)
• 2005 UL SUBJECT 327-2005 Outline of Investigation for Turbine Type Flow Meters (Issue 4)
• 1994 UL SUBJECT 327-1994 Outline of Investigation for Turbine Type Flow Meters (Issue Number: 3)