Nominal Size (DN)

20

25

32

40

50

65

80

100

125

150

200

250

300

Valve Seat Diameter (dn)

20

25

32

40

50

65

80

100

125

150

200

250

300

Rated Flow Coefficient (KV)

Single Seat

6.9

11

17.6

27.5

44

69

110

176

275

440

630

875

1250

Sleeve

6.3

10

16

25

40

63

100

160

250

360

570

850

1180

Permissible Pressure (MPa)

Single Seat

3.8

3.2

3.0

2.0

1.8

1.5

1.4

1.0

0,7

0.6

0.5

0.3

0.1

Sleeve

6.4

6.4

5.2

5.2

4.6

4.6

3.7

3.7

3.5

3.1

3.1

2.6

2.2

Rated Stroke (mm)

16

25

40

60

100

Matching actuator type

ZHA/B-22

ZHA/B-23

ZHA/B-34

ZHA/B-45

ZHA/B-56

Body form

Straight-through Casting Ball Valve

Nominal Pressure (MPa)

PN1.6, 2.5, 4.0, 6.4, 10.0

Flange Standard

GB/T9113, JB/T79, HG20594 and other standards

Connection Type

Flange (FF RF RTJ), Welding (SW BW), Thread (Applicable to 1" or less)

Valve Cover Form

Standard Form (-17~+250℃), High-temperature Form (+250~+450℃), Low-temperature Form (-40~-196℃), Bellows Seal Form(-40~+350℃)

Gland Form

Bolt Compression

Sealing Packing

V-type PTFE Filler, Impregnated PTFE Asbestos Filler, Asbestos Textile Filler, Graphite Filler

Body Material

Cast Steel (WCB), Stainless Steel (CF8, CF8M, CF3, CF3M), Chrome Molybdenum Steel, Cast Steel Lining PTFE (WCB+F46)