Elkhart Brass ELKHART UP VALVES - Manual

1
ELKHART BRASS MANUFACTURING COMPANY
INSTALLATION and OPERATING INSTRUCTIONS
for
MODEL “UP”
PRESSURE RESTRICTING HOSE VALVES
I. Models and Sizes Covered:
UP-20, 1-1/2" size
UP-25, 1-1/2" size
UP-20, 2-1/2" size
UP-25, 2-1/2" size
Inlet and Outlet Connections:
Valve Model & Size *Inlet Thread *Outlet Thread
UP-20, 1-1/2" 1-1/2" fem. NPT 1-1/2" fem. NPT
UP-25, 1-1/2" 1-1/2" fem. NPT 1-1/2" male NH
UP-20, 2-1/2" 2-1/2" fem. NPT 2-1/2" fem. NPT
UP-25, 2-1/2" 2-1/2" fem. NPT 2-1/2" male NH
*NPT = American National Standard Taper Pipe Threads (ANSI/ASME B1.20.1-1983, Latest Edition)
NH = American National Fire Hose Connection Screw Thread (NFPA 1963-Latest Edition)
II. Application Guidelines:
The model UP valves are designed for use as pressure restricting valves in fire protection standpipe systems. The
2-1/2” models are intended for use in Class I and Class III systems, and 1-1/2” valves are for use in Class II
systems. They are combination shut-off and flow throttling valves which serve to reduce excessive standpipe
pressures under flowing conditions only to below prescribed limits. These valves are listed by Underwriters
Laboratories as Pressure Reducing Devices (VUTX). Requirements for the installation of pressure restricting
valves in standpipe systems are given in Section 5-8 of NFPA-14, Standard for the Installation of Standpipe and
Hose Systems, Latest Edition. The following maximum flow rate limits for the Model UP valves should be
observed:
Valve Model Max. Flow (gpm) Max. Pressure (PSI)
UP-20 & UP-25, 1-1/2" 100 175
UP-20 & UP-25, 2-1/2" 300 175
98277000 Rev A