BALL VALVE PRODUCT’S SIZE:

PRESSURE GRADE                FROM                  TO

CLASS 150                    1”                     10”

CLASS 300                    1”                     10”

DESIGN DESCRIPTION:

BOLTED CAP,

V-PORT

CONNECTRION: WAFER

SOFT SEAL, AVAILABLE METAL SEAL.

WORKING PRESSURE AND TEMPERATURE

WORKING TEMPERATURE

MATERIAL                CELSIUR SCALE               FAHRENHEIT

CARBON STEEL           -29 C~425 C                   6 F~822 F

STAINLESS STEEL        -40 C~550 C                    15 F~1047 F

GENERAL DESIGN SPECIFICATIONS:

ITEM                                                CLASS 150/300

MANUFACTURE                                         FACTORY STD

PRESSURE-TEMPERATURE RATINGS                        ANSI B16.34

FACE TO FACE                                        FACTORY STD

END FLANGE                                          ANSI B16.5

INSPECTION AND TEST                                 API 598

TEST PRESSURE TO API 598:

ANSI              SHELL (WATER)        SEAT (WATER)                        SEAT (AIR)

150              3.1MPA            450PSI           2.2MPA            315PSI             2.2MPA            315PSI

300              7.8MPA            1125PSI          5.6MPA            815PSI             5.6MPA            815PSI

RELATION BETWEEN CORRESPONDING OPEN AND FLOW COEFFICIENT Cv:

RELATIVE OPEN DEGREE

SIZE 10%            30%            50%               70%               90%           100%

DN              INCH                                     FLOW VOLUME COEFFICIENT Cv

 25               1              0.5             2            5.2               10                19             28

40             1-1/2            1.2            5.7           15                30                54             81

50               2              1.9            8.8           23                46                83             125

65             2-1/2            3.2            14            39                76                138           208

80               3              4.4            20            54                106               192            290

100               4                7            33            86                170               308            465

125               5               10            46            122               240               436            658

150               6               13            60            157               310               564            850

200               8               21            97            255               503               915           1380

250              10               33           152            401               792              1440           2170