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Qs series top mounted ball valve

Valve main advantages:

1Small valve operation torque

One type of valve stem and ball, the stem can effectively transfer torque to the ball


2To prevent the failure of spring elastic function

The structure of the valve seat is provided with the compensation and the pre tightening spring and the slag preventing structure, which can prevent the failure of spring caused by spring caused by the medium.


3Valve stem long use cycle

Valve inside the lining of the runner can effectively extend the use of the body and the ball cycle


Application range

1)Pipeline and gas field

2)Bad working conditions


Design standard

1Design and manufacture GB/T12237  API608  BS5351

2Inspection and test JB/T9092  API598  GB/T13927

3Connecting end:

FlangeGB/T9113 HG/T20592 ASME B16.5 JB/T79 JB/T82 SH3406 DIN2630

Butt weldingASME B16.25 JB/T12224

Technical parameters

1Nominal diameter1~20 DN25~DN500

2) Nominal pressureClass150~Class2500PN1.0~PN40

3) Main parts material and its corresponding working parameters

Body

Sphere, valve stem

Seat

Temperature

Applicable medium

WCB

410 F6a

PTFE (-196~120 )

RPTFE (-196~180 )

NYLON (-40~80 )

POM (-40~85 )

PEEK(-40~250 )

Cobalt chromium tungsten alloy (425 )

-29~425

Water, oil, gas (liquefied gas, etc.)

LCB

-46~425

A105

-29~425

LF2

-46~425

CF8

304F304

-196~455

Corrosive media such as nitric acid and acetic acid

CF8M

316F316

-196~425

CF3

304LF304L

-196~425

CF3M

316LF316L

-196~450

Note: generally, the selection of different valve seat material, that is, the highest valve temperature.


4Main performance specification

Valve pressure

PressureMaxMpa

Test pressure (WCB)

Various materials

Pressure temperature ratings

Shell

Seal up

Nominal pressure PN

16

1.6

2.4

1.76

GB/T 12224

25

2.5

3.75

2.75

40

4.1

6.15

4.51

63

6.5

9.75

7.15

100

9.6

14.4

10.56

160

16.5

24.75

18.15

320

32.7

49.05

35.97

Pressure rating Class

150

1.96

3.0

2.2

ASME B16.34

300

5.11

7.8

5.8

400

6.80

10.2

7,5

600

10.21

15.4

11.4

900

15.32

23.0

17.0

1500

25.53

38.4

28.2

2500

42.55

64.0

47.0

5) Executive body: manual, electric, pneumatic, gear box, etc.


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