Blow Off Valve Assembly Water Main
Nn 2 inch blow off assembly 2 inch through 12 inch mains.
Blow off valve assembly water main. Water quality sampling station. Kupferle foundry offers the truflo tf500 blow off designed especially for flushing dead end mains. Pressure valve right left. Ii valve box assembly installation 16 inch and larger butterfly valves 12 g jumper connection g new water main jumper schematic 2 24 inch mains 13.
The drain valve is provided at the lowest point of the section of the pipeline to be drained and at all dead ends of the distribution system. W 19 standard water air release valve w 20 standard manhole cover w 21 temporary water main blow off assembly w 22 permanent water main blow off assembly w 23 standard 1 water service installation w 24 single family residential new construction back flow prevention meter assembly installation. 1 2 combo air release valve assembly. G gispubwrkswaterstandard specifications 7 edited water specsfinal w 10a 2 in blow off assembly w 10a 1 author.
Standard valve box assembly. The tf500 installs underground in a 51 4 inch valve box and is hidden from view. 4 sand blow off assembly. Fm 18 2 of 2 typical blow off fire cistern masonry sectional view fm 19 typical blow off fire cistern precast concrete.
Exist water main butterfly valve exist feeder main 45 deg bend restrained joint pipe existing water main cap or plug existing flared end no. 16 1 03 location blowoff valve assemblies shall be located at the low points of the water main at the end of all water mains that are not looped and at other locations shown on the plans. 2 smaller service lateral abandonment. 4 12 abandonment of fittings valves.
Steel valve stem extension. Slope protection restoration of the surface area around the blowoff valve assembly and installing a post and guide marker. Traditionally many systems have used fire hydrants for flushing dead ends especially cul de sacs. These are ordinary valves but used for a specific purpose of scouring or emptying or cleaning the main and water storage tank.
Water temporary blow off assembly permanent blow off assembly air release manhole fire hydrant assembly tapping sleeve and valve assembly standard bore encasement vertical bend rodding and blocking detail thrust block detail thrust collar installation restraint harness large culvert crossing. A portable riser is attached to the blow off when flushing. One other thing using a plug valve will restrict water flow and slow the bleed off process due to the the fact that the valve only gives you an opening about 80 of the diameter of the pipe where as the gate valve is a fully open port also most plug valves are used in sewer service and may or may not meet the requirements of nsf 61 so you may want to keep an eye out for that too. Nn 2 inch valve with blow off.