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Floating Ball Valve

2021-04-01 15:32:22 67

DESIGN FEATURES

 

●  Blow out-proof stem construction

The lower end of stem is terraced and is installed from the inside of the valve body. This construction insures a blow out proof stem and metal to metal in case of fire.

●  Antistatic design

During operation of valve, static electricity may accumulate on the ball. The special antistatic device can discharge the static electricity during opening and closing of the valve.

●  Fire-safe design: API607/API6FA

Each possible leaking part between Ball and Body, Middle flange, Stem and body are designed for metal to metal contact which conforms to the fire-proof requirements of API 6FA and API 607. In case of extreme fire-proof conditions, the packing and gasket material shall be flexible graphite to insure zero leakage. 

●  Advanced and exclusive seat design

With many years of Ball Valve manufacturing experience and advanced technology from abroad, the cone sealing surface developed, makes the sealing more reliable. Our designs are available with various types of seat materials that offer low friction and low operational torque. 

●  Middle flange with no leakage designBody and Cap connection

Body and Cap connection are sealed by gaskets. To prevent leakage from fire, high temperature or vibrations, metal to metal sealing between the body and cap is maintained. 

●  Wrench with Open/Close indication

When the handle (lever) is on the same horizontal line with the pipe, this indicates the valve is at open position. When the handle (lever) is on the vertical line with the pipe, this indicates the valve is at closed position. 

●  Locking Device

The valve is equipped with locking holes for the lever in the full open and full closed position, to prevent accidental opening and closing of the valve.

● Main material of parts (Casting Steel Ball Valve)

Part No.

Part Name

Carbon steel

Low Temp. Steel

 Stainless Steel

1

Body & Bonnet

WCB

LCB

CF8M/CF3M

2

Ball

A105+ENP

LF2+ENP

F304/F316

3

Stem

A182 F6a/ANSI 4140

LF2+ENP

F304/F316

4

Seat

PTFE/PPL/PEEK/EPDM/VITON/DEVLON

5

Packing

PTFE/Graphite

6

Gasket

PTFE/Graphite

7

Bearing

PTFE/PPL

8

Bolt

A193-B7/B7M

A320-L7

A193-B8/B7M

9

Nut

A194-2H/2HM

A194-4

A194-8/2HM

10

Handle

Carbon steel

Carbon steel

Carbon steel

Note: The above material conforms to ASME standards, and the material will be subject to the working condition or customers requirements.

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Our unique technology and experience accumulated over the years, different valve operating conditions and pressure have different solutions, which is the key to maintain the lasting innovation of avionics valve

CONTACT US

Chengdu Holy Valve & Complete Equipment Co.,Ltd.

Add:No. 10, Gaopeng Avenue, High-tech District, Chengdu City, Sichuan, China
Post Code:610041
Tel:86-28-85148860
FAX:86-28-85148861
E-MAIL:
sales@holy-valve.com 


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