 Ball valves
FB39
for underground installation AND SPHERE OF APPLICATION
Ball valves are intended to be fitted as stop/shutoff valves on underground pipelines of natural gas, oil and oil products, and other fluid and gaseous media where the valve material is corrosion-resistant. Distinctive features of these valves are extended stem, special anticorrosive treatment of the body, as well as liability and durability.
PERFORMANCE DATA | Working medium . . . . . . . | Natural gas, oil and oil products | | Nominal pressure, PN | 16 | | Working medium temperature | -60°С ... +80°С | Gate leak-proofness class
by GОSТ 9544-93 | А (without leakage) | | Расчетное давление, | 2,2 | Climatic version by
GOSТ 15150-60 | U1 (-40°С...+40°С) | | UHL1 (-60°С...+50°С) | | Handle turning force, N | 120 Н, max | | Total service life, cycles | 8000 | | Total life cycle, years | 10 min | |
VALVE DESIGN
The ball valve consists of the valve body (1) and the caps (12) welded to the valve after valve assembly. The ball seats (7) within the bushings (4) press the ball (2) by the springs (13). The ball revolves on the axis (11). The stem is sealed by rubber rings (9). The stem is fixed by the ring (27) and closed by the bonnet (10). The valve is supplied with a slewing limiter – a stop (14). The valve is supplied with an extension part consisting of the adapter (31) and the shaft (16) inside the pipe (32) and interacting with the stem (15). The body (28) is welded to the upper part of the pipe; the shaft (16) sealing is mounted inside the body and consists of the set of PTFE washers (20, 21, 22, and 23) and the bushing (18) the set is covered by the bonnet (30). An extension end of the shaft (16) is covered by the process bonnet (29). In addition the valve is liquored by antirust compound. |
MATERIAL LIST
| No | Designation | Materials used in various valve versions | | Basic version | 01 | 02 | | 1 | Valve body | Steel 321H (X12CrNiTi 18 9) | Steel 1023 (C 22) | cold-resistant steel | | 2 | Valve ball | Steel 321H (X12CrNiTi 18 9) | | 3 | Bushing | Steel 321H (X12CrNiTi 18 9) | Steel 1023 (C 22) | cold-resistant steel | | 4 | | Steel 431 | | | 5 | Plug | Steel 321H (X12CrNiTi 18 9) | Steel 1023 (C 22) | cold-resistant steel | | 6 | | 7 | Ball seat | PTFE | | 8 | Joint gasket | | 9 | Ring | Резина Н183 | | 10 | Bonnet | Steel 321H (X12CrNiTi 18 9) | Steel 1023 (C 22) | cold-resistant steel | | 11 | Axis | Steel 431 | | 12 | Cap | Steel 321H (X12CrNiTi 18 9) | Steel 1023 (C 22) | cold-resistant steel | | 13 | Spring | Steel 321H (X12CrNiTi 18 9) | | 14 | Stop | Steel 321H (X12CrNiTi 18 9) | Steel 1023 (C 22) | cold-resistant steel | | 15 | Valve stem | Steel 431 | | 16 | Shaft | Steel 5140 (41Cr4) | | 17 | Screw | Steel 321H (X12CrNiTi 18 9) | | 18 | Bushing | Steel 321H (X12CrNiTi 18 9) | Steel 1023 (C 22)Steel 1023 (C 22) | cold-resistant steel | | 19 | Plug | | 20 | Ring | PTFE | | 21 | | 22 | | 23 | | 24 | | 25 | Ring | Steel 431 | | 26 | PTFE | | 27 | Gasket | | 28 | Valve body | Steel 321H (X12CrNiTi 18 9) | Steel 1023 (C 22) | cold-resistant steel | | 29 | Bonnet | | 30 | | 31 | Adapter | Сталь40Х | | 32 | Pipe | Steel 321H (X12CrNiTi 18 9) | Steel 1023 (C 22) | cold-resistant steel | |
OVERAL DIMENSIONS OF BALL
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