MANUALLY OPERATED VALVES AND METERING ACCESSORIES FOR THE PETROLEUM, PETROCHEMICAL AND CHEMICAL INDUSTRIES - NAMELY, BALL VALVES, [ DOUBLE BLOCK AND BLEED VALVES, * COMBINATION PLUG AND CHECK VALVES, * SELECTOR BALL VALVES AND GATE VALVES; ] METAL STRAINERS TO PROTECT METERS AGAINST DAMAGE FROM FOREIGN MATERIAL; METAL PIPING AND VANES FOR FLOW STRAIGHTENING ASSEMBLIES TO OPTIMIZE TURBINE METER PERFORMANCE

[ PUMPS FOR THE PETROLEUM, PETROCHEMICAL AND CHEMICAL INDUSTRIES - NAMELY, PLUNGER PUMPS; AND PISTON PUMPS; ] DEAERATORS

FLOW MEASUREMENT AND CONTROL APPARATUS FOR THE PETROLEUM, PETROCHEMICAL AND CHEMICAL INDUSTRIES-NAMELY, CONTINUOUS FLUID FLOW MEASURING AND CONTROL MICROPROCESSORS, PRE-SET FLUID FLOW MEASUREMENT, CONTROL AND DELIVERY MICROPROCESSORS, AND ELECTRONIC MULTIPLE-STREAM FLOW BLENDERS; AUTOMATIC VALVES AND METERING ACCESSORIES FOR THE PETROLEUM, PETROCHEMICAL AND CHEMICAL INDUSTRIES - NAMELY, DIAPHRAM VALVES, FOUR-WAY DIVERTER VALVES, POPET VALVES, HYDRAULIC CONTROL VALVES, DEAERATORS AND BACK PRESSURE VALVES, TANK SAFETY VALVES, CHECK VALVES, BALL CHECK VALVES, WAFER CHECK VALVES, AND AIR ILLUMINATOR HEADS TO RELEASE AIR FROM LIQUID FLOW PRIOR TO METERING; METAL VALVES AND ACCESSORIES FOR PRESSURIZED FLUID SERVICE INCLUDING STEAM, AIR, GAS, VAPORS, CRYOGENICS, AND LIQUIDS - NAMELY, [ SPRING DISC, RUPTURE DISC, ] SILENCER, RELIEF VALVES, SAFETY * RELIEF * VALVES, * SAFETY VALVES, * AND LARGE ORIFICE SAFETY RELIEF VALVES; PROVER AND LAUNCH CONTROL APPARATUS FOR PIPELINE METERING ERROR DETECTION AND CORRECTION; ELECTRO-PNEUMATIC, ELECTRIC AND SOLENOID-ACTIVATED BALL VALVES; TANK TRUCK LIQUID FLOW METERS; FLOW METERS INCLUDING TURBINE, POSITIVE DISPLACEMENT, PISTON, MAGNETIC, OVAL GEAR, POSITIVE DISPLACEMENT ROTARY VANE, AND NON-FERROUS METERS; COUNTERS TO SHOW RATE OF FLOW AND TOTAL FLOW; ULTRASONIC FLOW MONITORS TO DETECT MAJOR FLOW RATE CHANGE; ELECTRONIC AND MECHANICAL TOTALIZERS; FREQUENCY TO ANALOG CONVERTERS; AUTOMATIC TEMPERATURE COMPENSATORS FOR MEASURING LIQUID HYDROCARBON FLOW; ELECTRONIC CALIBRATORS; AND TRANSMITTERS FOR CONVERTING FLOW DATA TO DIGITAL ELECTRONIC SIGNALS FOR REMOTE INSTRUMENTATION; INSTRUMENTATION FOR PRESSURIZED FLUID SERVICE INCLUDING STEAM, AIR, GAS, PROCESS FLUIDS, AND LIQUIDS - NAMELY GAUGES, THERMOMETERS, VALVE TEST BENCHES, AND PRESSURE, TEMPERATURE AND HUMIDITY RECORDERS