TitleProduct

One Piece Floating Ball Valve

  • Price:

    Negotiable

  • minimum:

  • Total supply:

  • Delivery term:

    The date of payment from buyers deliver within days

  • seat:

    Beijing

  • Validity to:

    Long-term effective

  • Last update:

    2020-02-16 18:03

  • Browse the number:

    108

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Company Profile

Wenzhou Growth Fluid Equipment Co., Ltd

By certification [File Integrity]

Contact:apkvalve(Mr.)  

Email:

Telephone:

Phone:

Area:Beijing

Address:Beijing

Website:http://www.growthfluid.com/ http://apkvalve.lnvtesting.com/

PRODUCT DETAILS

Design Feature: 

- Nominal Size Range: NPS 1/2” ~ 4” 

- Pressure Rating: Flanged End Connections meet ASME Class 150/300

- Connection: Flange (RF, FF, RTJ), Butt Welded (BW), Socket Welded (SW)

- One piece reduced bore body, flanged construction in carbon steel, stainless steel and special alloys.

- Compact body design with minimum weight

- Floating ball design for bi-directional shut-off.

- Flexing soft seat design for superior shut-off across a range of pressures with minimum operating torque.

- Fugitive emission performance to BS EN ISO 15848-2 class A.

- Corrosion resistant trim. Standard valves incorporate balls and shafts of stainless steel for long service life.

- Most designs offer cavity pressure relief to upstream in event of thermal expansion.

- Automatic internal relief of body pressure

- Emergency sealant injection system

- Fire safe design

- Anti-static device

- Anti-blow out stem design

- Body vent device stem extension (according to requirements)

- Sour service: material for pressure-containing and pressure-controlling parts and bolting shall meet the requirements of NACE MR0175 


Design Specifications: 

- Design: API599 API6D

- Pressure-temperature rating: ASME B16.34

- Face-to-face dimensions for butt weld and flanged valves: ASME B16.10

- Flange design: ASME B16.5

- Butt welding design: ASME B16.25


Pressure Testing: 

Each valve is pressure tested in accordance with API 6D, API 598, or special customers' requirements as applicable.


Technical Details:

1. Blow-out proof stem

For the purpose of preventing the stem from flying off resulting in abnormal inner pressure of valve, shoulder is fixed at the lower part of the stem. 

In addition, 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. 

2. Key lock

Locks can be used to lock the manual valve when it is fully open or closed so as to prevent non-working personnel from pulling the handle which may result in misoperation of valve. For working pipelines such as combustible and explosive oil, gas and chemical medium, or for field piping site, the locking mechanism is especially useful.

3. Anti-fire safe design

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.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.

4. Anti-static device

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.Thus static electricity is conducted to ground and system safety is secured.

5. 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.

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