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1 <br /> 2.08 THERMOMETER WELLS <br /> A. Thermometer Wells: Brass or stainless steel,pressure rated to match piping system design pressure; with 2-inch <br /> ' extension for insulated piping and threaded cap nut with chain permanently fastened to well and cap. <br /> 2.09 PRESSURE GAGES <br /> ' A. Type: General use,ASME B40.1,Grade A,phosphor bronze bourdon-tube type,bottom connection. <br /> B. Case: Drawn steel or brass,glass lens,4-1/2-inches diameter. <br /> C. Connector: Brass, 1/4-inch NPS. <br /> D. Scale: White coated aluminum,with permanently etched markings. <br /> ' E. Accuracy: Plus or minus 1 percent of range span. <br /> ' F. Range: Conform to the following: <br /> 1. Vacuum: 30 inches Hg to 15 psi. <br /> 2. All fluids: 2 times operating pressure. <br /> ' 2.10 PRESSURE GAGE ACCESSORIES <br /> ' A. Syphon: 1/4-inch NPS straight coil constructed of brass tubing with threads on each end. <br /> B. Snubber: 1/4-inch NPS brass bushing with corrosion-resistant porous metal disc. Disc material shall be suitable for <br /> fluid served and rated pressure. <br /> ' 2.11 FLOW METERS,GENERAL <br /> A. Flow rate of elements and meters shall be same as connected equipment or system. <br /> 2.12 ORIFICE-TYPE FLOW ELEMENTS <br /> ' A. Type: Differential-pressure wafer-type orifice insert flow elements designed for installation between pipe flanges. <br /> B. Construction: Cast-iron body, brass valves with integral check valves and caps, and calibrated nameplate. <br /> ' Elements shall be pressure rated for 300 psig and 250 deg F. <br /> 2.13 VENTURI-TYPE FLOW ELEMENTS <br /> ' A. Type: Differential-pressure venturi type,designed for installation in piping. <br /> B. Construction: Bronze or cadmium plated steel with brass fittings and attached tag with flow conversion data. Ends <br /> shall be threaded for 2 inches and smaller elements and flanged or welded for 2-1/2 inches and larger elements. <br /> 2.14 METERS <br /> ' A. Permanently Mounted Meters: Suitable for mounting on wall or bracket, 6-inch dial or equivalent with fittings and <br /> copper tubing for connecting to flow element. <br /> ' 1. Scale shall be in gpm unless otherwise indicated. <br /> 15135-5 No.99132-CP2 <br />