TUBING ANCHOR: CONNECTION THREAD 2 7/8” NUE, ANCHOR PRESSURE 6 MPa PLUNGERS: MADE FROM SEAMLESS STEEL TUBING, COLD-DRAWN VALVE BALL & SEAT: VACCUM TESTED, INTL STANDARD SPECIFICATION, APIV11 VALVE RODS: STEEL, ALLOY STEEL, STAINLESS AND BRASS