Page 136 - Tyco-Grooved-Fire-Protection-Products-Installation-Handbook
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134 APPROVED PRESSURE RATINGS
EZ - EZ-Flow Listed/Approved steel sprinkler pipe manufactured by
Northwest Pipe and Casting Company.
FLF - Fire Line Flow Listed/Approved steel sprinkler pipe manufactured by Western International Forest Products.
GL - GL Listed/Approved steel sprinkler pipe manufactured by Wheatland Tube Company.
MF - Mega Flow Listed/Approved steel sprinkler pipe manufactured by Wheatland Tube Company.
MLT - Mega Light Listed/Approved steel sprinkler pipe manufactured by Wheatland Tube Company.
MT - Mega Thread Listed/Approved steel sprinkler pipe manufactured by Wheatland Tube Company.
SL - Listed/Approved steel sprinkler pipe manufactured by Wheatland Tube Company.
WLS - WLS Listed/Approved steel sprinkler pipe manufactured by Wheatland Tube Company.
WST - WST Listed/Approved steel sprinkler pipe manufactured by Wheatland Tube Company.
EZT-EZ Thread Listed/Approved steel sprinkler pipe manufactured by Youngstown Tube Company.
FF - Fire-Flo Listed/Approved steel sprinkler pipe manufactured by Youngstown Tube Company.
NOTE:
Cut and roll grooved references are for pipe runs and also grooved outlets.
Grinnell products are UL and ULC Listed and FM, LPCB and VdS Approved, as specified in the following charts, for the pressure ratings shown for use in Fire Protection Systems (automatic sprinkler, open sprinkler and standpipe) and connections to such systems. The charts were developed from the latest Listings and Approval data available at the time of publication. Listings are subject to changes and additions by the approval bodies.
For Dry Pipe systems or Freezer Systems, use Tri-Seal Gaskets and petroleum free silicone lubricant.
Pipe Schedule Key
