Cla-Val 750B-4KG - Manual (Page 4)

Roll Seal
®
TM
750B - 4KG1
ROLL SEAL FIRE PUMP RELIEF VALVE
INTRODUCTORY INFORMATION
This manual is primarily intended for use as a manual for the UL listed and FM
approved Roll Seal 750B-4KG1 Fire Pump Relief Valves. Certain sections may contain
information that would be useful for the care installation and maintenance of other
Roll Seal products and Valve sizes. This extra data is intended as additional reference
information for the Roll Seal product line.
The product literature for the Roll Seal 750B - 4KG1 Fire Pump Relief Valve notes the
particular Valve Sizes and configurations that are UL listed or FM approved. Consult
the factory or your nearest sales representative if further clarification is required.
UL listed and FM approved products are identified by the appropriate nameplate on
the Valve. Drawings of the UL & FM nameplates are enclosed for reference.
The UL nameplate drawing number 86060. The FM nameplate drawing number is 94777.
This manual contains information regarding care, installation and maintenance of
the Roll Seal Main Valve (100-42) as well as information about the fully piloted prod-
uct (750B-4KG1 Fire Pump Relief Valve). 100-42 is the identifying nomenclature for
the Main Valve. 750B-4KG1 is identifying nomenclature for the fully piloted Fire Pump
Relief Valve Assembly. See Schematic Drawing No. 29868 for clarification of the com-
ponent nomenclature and for a description of Valve Operation.
A capacity flow curve for Valve sizes 3" through 10" is included that shows the flow
capacity in the full open valve condition.
Cla-Val recommends that 750B-4KG1 Valves be tested after installation to verify the
Relief pressure set point.