Page 120 - inside front cover

Sprinkler Accessories
Dixon Powhatan 2007 10-8 1-800-355-1991
Test and Drain
Sprinkler Hose Valve
Sprinkler Line Tester
Line Test Gauge
• Cast brass valve
• Aluminum wheel
• Working pressure: 175 PSI
• UL listed and FM approved for automatic sprinkler and standpipe systems
Dixon
Part #
ASHV1015F
Male
NPT
1"
Male
NH (NST)
1½"
Powhatan
Part #
18-252-00002
The Test and Drain valve merges in one valve the following two functions of testing and
draining the system.
1) A test connection not less than 1" (25 mm) in diameter, terminating a smooth bore
corrosion resistant orifice, given a flow equivalent to one sprinkler of a type having the
smallest orifice installed on the particular system, shall be provided to test each waterflow
alarm device for each system. The test connection valve shall be readily accessible. The
discharge shall be to the outside, to a drain connection capable of accepting full flow under
system pressure or to another location where water damage will not result.
2) All sprinkler pipes and fittings shall be so installed that the system may be drained. Three
positions OFF – TEST – DRAIN. These valves have a green indicator to see their open or
closed position from 50 ft distance.
Dixon
Part #
TDV100
TDV125
NPT
Thread
1"
1¼"
Port
Orifice
½"
½"
For installing the last sprinkler head on system branch lines, controls water flow for flushing or
testing of the system. When the wet pipe sprinkler system operates, the water flow in the pipes
is at a relatively low velocity. Friction loss increases with the age of the sprinkler piping, up to
100 percent after 15 years. The accumulation of sediment and foreign objects in sprinkler
systems can be prevented by flushing the supply mains to the systems through the hydrants at
least semiannually. The National Board of Fire Underwriters recommended that sprinkler
branch line flow tests be conducted from the extremities of the branch lines (at the end of the
sprinkler system) to determine obstructions in the lines and to clean them of sediments or
foreign materials that may be carried into the system by the flow of water.
• Brass
• UL Listed and FM approved
• 1" NPT female inlet
• 1" NPT male outlet with NPT cap and chain
• ½" sprinkler head connection
Dixon
Part #
SLT10050
NPT
Thread
1"
• Aluminum hardcoat
• Rocker lug swivel
• Used for testing static or flowing pressures in hoses or nozzles
• Supplied with 0-300 PSI glycerine filled 3½" diameter gauge
• Freeze proof to -40° F
Other sizes and threads are also available. Consult the factory for price and availability.
Dixon
Part #
ALTG150F
ALTG250F
NH (NST)
Thread
1½"
2½"