Laserfiche WebLink
On September 21, Mike Willett, president of the Board of the District, and Nathan Coombs, <br />District Manager, travelled to SLC to meet Don Read at Prime Machine Inc. for the pressure and <br />operator testing. Prime Machine Inc. set up the leak tests at their facilities and the valves <br />performed above required limits. The valve body was filled with water and pressurized to 90psi. <br />The requirement for this test is that the valve leaf leakage could not exceed '/4 gallon per minute; <br />the leakage was 6 ounces! <br />�, � <br />:� ��� ��� <br />. �r �` �� ��. <br />x� � <br />� € ��� '.�" i ��'.. �yp ... <br />�,; , <br />t <br />���a�„x <br />The operators and mechanical actuators were also tested for the rate of opening and closing and <br />stop sets were programmed. The valve leaf travels from full open to full close in 5 minutes and <br />37 seconds. The closing rates were the same. <br />Prime Machine Inc. did a great job. Don Read, the Bureau's engineer signed off and approved <br />the valves saying that they exceeded his expectations and were a bargain for the price. <br />On October 5, 2010 Prime Machine <br />arrived on site at Platoro. They <br />immediately began the process of <br />removing the first butterfly valve. This <br />required about three days with three men <br />working 10 hour days! The workers <br />removed the discharge nozzle and <br />suspended it by cables so that the valve <br />body could be removed. There are forty- <br />four, 1'/2 inch bolts around the mounting <br />flange. All had to be removed by hand. <br />�� <br />'� <br />�� <br />�. <br />,-#, <br />� � ,� �� <br />�e f -�� � ��: <br />� �4 �� <br />� ,� <br />� <br />� , <br />� <br />J��, <br />�, <br />� <br />