Ball valves with reducing bore FB39 PURPOSE AND SPHERE OF APPLICATION Intended to be fitted as stop/shutoff valves in the process lines at chemical and oil-refining plants, as well as at pulp-and-paper milks and other production facilities using fluid, gaseous and corrosive working media. Distinctive features of these valves are shorten construction length, low steel intensity, compactness advanced reliability and forged and welded construction of the body. | VALVE DESIGN The ball valves with reducing bore consists of the body (1) and the caps (2) which press the ball seats (5) against the floating valve ball (3). The cap-body releasable joining is sealed with the joint gasket (10). The blowout proof valve stem (4) is sealed with the gaskets (6) and (7). The working medium can be admitted to any of the caps. Valve shifting is performed by turning handle (11) through 90 degrees. The valve can be mounted on the pipeline in any attitude position required. The valve can be supplied with the valve-locking device. | | | MATERIAL LIST | No. | Designation | Materials used in various valve versions | | Basic version | -02 | -03 | | 1 | Valve body | Steel 321H (X12CrNiTi 18 9) | Steel 1023 (C 22) | cold-resistant steel | | 2 | Valve ball | | 3 | Valve stem | Steel 321H (X12CrNiTi 18 9) | | 4 | Cap | Steel 431 | | 5 | Ball seat | PTFE | | 6 | Stem parking | | 7 | Stem seal | | 8 | Thrust washer | Steel 321H (X12CrNiTi 18 9) | | 9 | Nut | Steel 1023 (C 22)X13 | | 10 | Joint gasket | PTFE | | 11 | Handle | Steel 321 (X10CrNiTi 18 9) | | | PERFORMANCE DATA | Working medium . . . . . . . | media with non-corrosive materials | | Nominal pressure, PN | 16; 25; 40 | | Working medium temperature | -40°С … +160°С | | Gate leak-proofness class by | | | GOSТ 9544-93 . . . . . . . . . . | А (without leakage) | | Climatic version by | | | GOSТ 15150-69 . . . . . . | U1(-40°С...+40°С) UHL1(-60°С...+50°С) | | Handle turning force, N . | 150 max | | Total service life, cycles . . . . . | 8000 | | Total life cycle, years . . . . . | 10 min | | OVERAL AND CONNECTING DIMENSIONS OF BALL VALVES  | Designation | РN | DN | D | D1 | D2 | n | d | А | L | L1 | H | Weight, kg | | FB39.010.025* | 16 | 25 | 20 | 57 | 85 | 4 | 14 | 90 | 70 | 134 | 92 | 1,6 | | FB39.010.050 | 50 | 40 | 87 | 125 | 18 | 125 | 95 | 250 | 125 | 6,1 | | FB39.010.080 | 80 | 65 | 120 | 160 | 150 | 120 | 137 | 12,3 | | BALL VERSIONS  | |