Low head Reclaimed Cover Troubleshooting Spray Stays Up Here are some common reasons why a pop-up sprinkler may stay stuck up:debris in the pop up bodythe riser is damagedor the riser seal is worn To fix this:unscrew the body cappull Wet Area at Sprinkler There are two reasons ...
electric control valve open area, or by the fire detection and transmission system automatically open fire control valve and fire pump area, pipeline pressure increases and when the water pressure is greater than a certain value, the pressure water spray head start off cap, with sprinkler nozzle....
Fire Sprinkler Head Shut-Off Tool With Fusible Release Mechanism The shut-off tool also achieves the object of universal fit on most fire sprinkler heads by use of the adjustable angled clamping arms and by locating a sealing surface on each of the clamping arms so as to permit operation with...
A fire sprinkler or sprinkler head is the component of a fire sprinkler system that discharges water when the effects of a fire have been detected, such as when a predetermined temperature has been exceeded. Fire sprinklers are extensively used worldwide, with over 40 million sprinkler heads fitt...
Replace the cap loosely to leave room for water to drip out. Turn ball valves to 45 degrees on either side of the backflow preventer to prevent splitting. Turn each of your test cock screws to 45 degrees. Insulate above-ground components Protect any exposed pipes, the main shut-off valve...
A fire sprinkler or sprinkler head is the component of a fire sprinkler system that discharges water when the effects of a fire have been detected, such as when a predetermined temperature has been exceeded. Fire sprinklers are extensively used worldwide, with over 40 mil...
Pull the sprinkler head out of the system using your hands. You can also use a pair of pliers, if necessary. Step 4 Drain the main valve into a bucket by turning it clockwise with a socket wrench. Place another bucket either under the main line's drain or under its main shutoff ...
. The valve is located adjacent the bottom of the flow conduit. However, the sprinkler of U.S. Pat. No. 4,562,962 does not retract and is thus subject to damage. Further, there is no indication that the shut off valve of U.S. Pat. No. 4,562,962 functions with a flush cap....
A spray nozzle head is rotated directly by a turbine which is driven by the pressure of liquid at the inlet of the nozzle. The turbine is supported by a thrust bearing which also acts as a friction brake to cause the rotational speed of ... Ernst Steinhilber,Heinz Kutterer 被引量: 50...
cap220may be a separate piece connected to the body201. The degree of flow restriction imparted by the flow control device200generally depends upon the size of the opening but may also depend on characteristics of the sprinkler head used, and the water pressure. The connection of the cap220...