Post Indicator Valve Wiring Diagram
The valve orientation for 1 5 38mm.
Post indicator valve wiring diagram. To close the valve the ground post indicator is rotated clockwise to a positive stop. In this article we will study how this mechanism works and also the various purposes it can be used for. World s best tree felling tutorial. Regardless of valve type outside screw valve monitoring and yoke post indicator butterfly or non rising stem gate valve our osy2 pibv2 and psp1 models provide you with the peace of mind that comes from.
Monitoring the open position of firesprinkler control valves of the wall and yard post indicator and butterflytypes. Valve so the valve body remains under vacuum at all times and the pump down of the valve body is eliminated. Unless otherwise specified at time of order all valve cycle times and closing pressures are calculated using horizontal diagram 10 page 12 valve orient ation. They provide a means to operate a buried or otherwise inaccessible valve.
It consists of a conventional gate or butterfly valve located on the fire system water main with a raised post that protrudes above ground level or from a wall. Two spdt form c contacts are provided which will operate when the valve position is altered from an open state. The nerve centers of a fire sprinkler system are the switches and valves that control the entire system. Also indicator posts readily and clearly indicates whether the valve is open or shut.
I am using 24vdc relays to switch 240vac 15ampon irrigation line. System sensor offers a variety of choices for supervising system control valves. Loosen 2 3 4 unc bolts items p 15 that retain the telescoping barrel item p 16 to the lower standpipe item p 17 2. Working in a safe manner lift off the entire top assembly items p 1 through p 16.
The valve is opened by counterclockwise rotation of the united model 5400 ground post indicator to a positive stop without further effort. When fully open it is advantageous to rotate ground post indicator clockwise 1 2 turn. The unit mounts in a 1 2 npt tapped hole in the post indicator or butterflyvalve housing. A post indicator valve piv is a valve assembly used to open or close the water supply to fire protection systems in large buildings.
The valve actuator and a visual indicator of the valve status are housed at the top of the post. Confirm the operation by measuring the continuity at the line voltage terminations of each relay. Kennedy valve indicator posts 17 9 2945 a vertical indicator post changing the lower standpipe 1. Low voltage relay wiring diagram.
Mueller indicator posts are used in fire protection systems and perform several functions. All mueller indicator posts are ul ulc listed and 4 14 posts are fm approved and designed to withstand up to 900 ft lbs of. Guilty of treeson recommended for you.