Design and Construction: API Manual of Petroleum Measurement Standards, Chapter 4.2 Proving Systems, ASME B31.4, ASME B31.3 NEC Class: Class I, Div. 1, 220/440 volt/3 phase 50 or 60 cycle Radiography: 100% in accordance with API 1104 Hydrotest: 1.5 times design pressure with chart recording Section Flanges: Match bored, dowel pinned with O-ring groove for metal to metal seat for smooth un-interrupted sphere travel Standard seal: Buna-N - molded Materials: Pipe – ASME, ASTM, API Flanges and threaded fittings – ASME, ASTM, MSS Weld fittings – ASME, ASTM, MSS Studs – ASME, ASTM Nuts – ASME, ASTM Gaskets – Spiral Wound O-Rings – Viton Calibration: Water draw method, repeatability within 0.02 percent per API Chapter 4.9 and Chapter 12.2.4. Internal Coating: Crude, refined products – SP-5 and air dried epoxy Condensate – SP-5 and baked on phenolic LNG’s - SP-5 and baked on phenolic External Coating: SP-6 with epoxy / urethane Standard Equipment and Trim: Uni-Flo Interchange with PLC controls and hydraulic power unit Detector switches – Mag-Tek® M-6D, SS construction with Viton seals Sphere – Inflatable polyurethane, nitrile, or neoprene with accessories (pump and sizing ring) Quick opening closure, hinged or davit type Thermometer and SS thermowell Pressure device with isolation valve Pressure relief valve Vent valve Drain valve Skid mounted See Prover Bulletins MPD-112 and PDS-118 for assistance. Uni-Flo Conventional Ball Provers Typical Prover Specifications All materials and equipment selected for Weamco provers are of the highest quality and consistency. Selection is based on proven industry standards. 2350 Industrial Road, Sapulpa, OK 74066 • Main: 918-445-1141 • Bulletin UFP-112 Toll Free: 800-331-3790 • Fax: 918-445-4617 • 5-19 Page 3 of 3