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Fully Welded Ball Valve

200.0~90000.0 USD
Min. Order: 1 Piece/Pieces
Trade Term: FOB
Payment Terms: L/C, T/T
Supply Ability: 5000
Place of Origin: Zhejiang

Company Profile

Location: Wenzhou, Zhejiang, China (Mainland)
Business Type: Manufacturer, Trading Company
Main Products: Ball Valve

Product Detail

Means of Transport: Ocean, Air, Land
Power: Manual
Standard or Nonstandard: Standard
Pressure: High Pressure
Structure: Ball
Material: Forged
Temperature of Media: High Temperature
Media: Gas
Brand Name: CHENGGAO
Production Capacity: 5000
Packing: Plywood case
Delivery Date: within 35days
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Product Description

Fully Welded Ball Valve Size: 1/2"~40"

Fully Welded Ball Valve Pressure Rating: 150~2500Lb
Fully Welded Ball Valve Body Material: A105, LF2, F304, F304L, F316, F316L, F51, etc

Fully Welded Ball Valve Design & Manufacturing Standard: API 6D,ASME B16.34,API 608,BS 5351
Fully Welded Ball Valve Face to Face: ASME B16.10,API 6D,DIN 3202,BSEN 558
Fully Welded Ball Valve Welding Standard: ASME B16.25
Fully Welded Ball Valve Check & Experiment: ISO 5208, API 6D, API598
Fully Welded Ball Valve Fire-safe: API 607,API 6FA
Fully Welded Ball Valve Drive Method: Manual, Gear Box, Electro-motion, Pneumatic

FEATURES

Size: 2"~60"

Class: 150~1500Lb

Three Pieces Forged Steel Body

Trunnion Mounted Ball, Full Bore

Anti-static Device

Blow-out Proof Stem

Fire Safe Design

Emergency Sealant Injector

Vent Valve, Drain Valve

Lifting Lugs and supporting feets

SPECIFICATIONS

Design

ASME B16.34/API 6D

Face to Face

ASME B16.10

End Flange

ASME B16.5

BW End

ASME B16.25

Test

API 598/API 6D

Fire Safe Test

API 607/API 6FA

Special

NACE MR-01-75

Application

Chemical processing

Oil Field & Power Plant

Hydrocarbon processing


STANDARD MATERIAL LIST

No.

Parts Name

Material

1

Bonnet

A105+ENP, A182 F6, F304, F304L, F316, F316L, F51

2

Spring

Inconel X-7505, SS304, SS316

3

Seat

A105+ENP, A182 F6, F304, F304L, F316, F316L, F51

4

O-ring

PTFE

5

Seat Ring

R-PTFE, PEEK, PPL , DEVLON

6

Body

A105+ENP, A182 F6, F304, F304L, F316, F316L, F51

7

Ball

A105+ENP, A182 F6, F304, F304L, F316, F316L, F51

8

O-ring

Viton

9

Trunnion

A105+ENP, A182 F6, F304, F304L, F316, F316L, F51

10

Sliding Bearing

SS304+PTFE

11

O-ring

Viton

12

O-ring

Viton

13

Support

Q235-A

14

Drain Valve

1020+ZN, A182 F304, F304L, F316, F316L

15

Grese Valve

1020+ZN, A182 F304, F304L, F316, F316L

16

Vent

1020+ZN, A182 F304, F304L, F316, F316L

17

Stem

 A105+ENP, A182 F6, F304, F304L, F316, F316L, F51

18

Anti-static Spring

Stainless Steel

19

O-ring

Viton

20

Gland Gasket

SS304+Graphite

21

Sliding Bearing

SS304+PTFE, SS316+PTFE

22

O-ring

Viton

23

Bolt

A193 B7, B7M, B8, B8M

24

Gasket

SS304+Graphite

25

Lifting Lug

Q235-A

26

Bonnet

A105+ENP, A182 F6, F304, F304L, F316, F316L, F51

27

Top Flange

A105+ENP, A182 F6, F304, F304L, F316, F316L, F51

28

Stud

A193 B7, B7M, B8, B8M

29

Packing

Graphite

30

Key

1045, A182 F304, F304L, F316, F316L

31

Worm Gear

Duction Iron

32

Bolt

A193 B7, B7M, B8, B8M

33

Gasket

SS304+Graphite

 

1. Anti-fire safe design
 When the seat and O-ring are burnt, the seat retainer and body will be sealed by expanded graphite. Thus act anti-fire safe purpose. When the trunnion ball valve be used normally, its sealed by seat and ball surface, seat retainer sealed by O-ring and body, this is soft sealed and reliable sealing.

 

2. Anti-static device

Thus static electricity is conducted to ground and system safety is secured. In order to prevent friction among ball, stem and PTFE that generates static electricity which may light the combustibles and explosives that cause an accident, in this ball valve, static-conduction spring is set between the stem and the ball, the stem and the body. 

 

3. Bow-out proof stem

In order to prevent leakage resulting from burnout of packing set of the stem in a fire, thrust bearing is set at the contact position of the shoulder at lower part of the stem and valve body. Thus an inverse seal seat is formed which will prevent leakage and avoid accident. In addition, For the purpose of preventing the stem from flying off resulting in abnormal rising of the inner pressure of valve, shoulder is fixed at the lower part of the stem. 

 

4. Low torque in operation

The self-lubricated bearings are installed at the friction of stem, resulting in wear resistance, flexibility of operation and low torque.

 

5. DBB

When ball is full open or close position, the transmitter substance in center cavity of body can be released by drainage and emptying devices. In addition, the over loaded pressure in the center cavity of valve can be  released to low pressure end by self relief seat. 

 

6. Free leakage of body Sealed construction

The connective position of valve body and bonnet is double sealed by gasket and O-ring, on this base, such as factors as fire, high temperature, shock and uneven opening or closing of the torque all can't induce external leakage.

 

7. Extension stem 

For the underground installed valve, the stem can be lengthened and for the convenience of operation the corresponding compound injection nozzle and drainage valve can be extended to the top of valve.

 

8. Emergency sealing 

A concealed check valve is installed in side of each compound injection valve to prevent compound from out flowing due to the action of transmitter substance. The top of the compound injection valve is the connector for fast connection with compound injection gun. Compound injection holes are designed and compound injection valves are installed at locations of stem/cap and body support of side valve. When sealing of stem or seat is damaged to induce leakage, the compound can be used to do the second time sealing. 

 

9.   Automatic body cavity relief and various driving types

The valve can be drive by manual, electrical, pneumatic and pneumatic/hydraulic. the trunnion ball valve downstream seat will be pushed by un-normally pressure, and the release the unnormal pressure automatically, it doesn't damage to the sealing of upstream seat.


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