Trunnion Ball Valve


Design Data

Design standard: API 6D,DIN3357-1 , EN12516-1

Face to Face standard: API6D, ASME B16.10, DIN3202

Connecting Standard:  ASME B 16.5, ASME B16.47, DIN 2543/4,ASME B 16.25

Test & Inspect Standard: API 6D ,API 598

Working Temperature: -196℃~610℃

Connection type: RF,RTJ,FF,BW.BSPT,NPT

Sour environment:NACE MR0175


Ball Valve TypeDesign and ManufactureFace to Face/End to EndFlange DimensionsPressure Temperature RatingInspection and Test
Split Flange ball valveBS5351ANSI B16.10ANSI B16.5ANSI B16.34API6D
Fixed flange ball valveAPI6D/API608API6DANSI B16.47ANSI B16.34API598


Main Material


Body materialTrim materialSeal materialGasket/Packing
WCB/LCB/CF8/CF8M/CF3/CF3M,ETC.SS410, SS420, SS304, SS316,ETCPTFE, RPTFE, PEEK, PPL, ETC.GRAPHITE. PTFE, PPL. ETC.



The ball is fixed by trunnion and stem for size 4” &smaller.     

Trunnion plate support for size 6” & larger.






Side Entry Trunnion Type Ball Valve


Trunnion Mounted ball valve are suitable for using on various kinds of pipelines of Class 150 to Class 2500, PN16~PN160, JIS 10K~ JIS 20K to cut off or turn on the pipeline medium, of which the operation types include worm gear, manul, pneumactic or electric actuators, being in general of flange connection, and butt welding end connection as well.


Design Feature

1: Full bore or reduced bore

2: Two-piece or Three-piece body structure

3: Double Block & Bleed, Double isolation and bleed(DIB-1&DIB-2)

4: Fire safe design(API 607)

5: Blowout-proof system

6: Anti-static design

7: Self cavity relief

8: Fugitive emission testing(optional)


Sealing Options

Soft seat: Metal to Metal O-Ring seal

Simple structure reliable sealing Applicable to particulate Reliable sealing low torque meet customers' high

wide application low cost. media conditions sealing reliability and low torque requirements



Blow-out proof stem:

The stem is made separately from the ball with integral T-type round shoulder, retained by bland .(other designs are Available on request)

Anti-static device:

Spring plus graphite type anti-static device are applied between the ball ,stem, gland Flange and body to keep the electrical Continuity between all the metallic components . And ensure the resistance lower than the most severe service requirement.

Grease injection device

For DN150 (NPS 6) & larger the stem and the valve seat are provided with a sealing grease injection device, For DN125 & smaller, we can provide the sealing grease injection device according to customer requirements. When the O-ring is damaged by accident, by injected sealant sealed to prevent the media through the valve seat ring and stem leaks.


Design Data

Design standard: API 6D,DIN3357-1 , EN12516-1

Face to Face standard: API6D, ASME B16.10, DIN3202

Connecting Standard:  ASME B 16.5, ASME B16.47, DIN 2543/4,ASME B 16.25

Test & Inspect Standard: API 6D ,API 598

Working Temperature: -196℃~610℃

Connection type: RF,RTJ,FF,BW.BSPT,NPT

Sour environment:NACE MR0175


Ball Valve TypeDesign and ManufactureFace to Face/End to EndFlange DimensionsPressure Temperature RatingInspection and Test
Split Flange ball valveBS5351ANSI B16.10ANSI B16.5ANSI B16.34API6D
Fixed flange ball valveAPI6D/API608API6DANSI B16.47ANSI B16.34API598


Main Material


Body materialTrim materialSeal materialGasket/Packing
WCB/LCB/CF8/CF8M/CF3/CF3M,ETC.SS410, SS420, SS304, SS316,ETCPTFE, RPTFE, PEEK, PPL, ETC.GRAPHITE. PTFE, PPL. ETC.



The ball is fixed by trunnion and stem for size 4” &smaller.     

Trunnion plate support for size 6” & larger.






Side Entry Trunnion Type Ball Valve


Trunnion Mounted ball valve are suitable for using on various kinds of pipelines of Class 150 to Class 2500, PN16~PN160, JIS 10K~ JIS 20K to cut off or turn on the pipeline medium, of which the operation types include worm gear, manul, pneumactic or electric actuators, being in general of flange connection, and butt welding end connection as well.


Design Feature

1: Full bore or reduced bore

2: Two-piece or Three-piece body structure

3: Double Block & Bleed, Double isolation and bleed(DIB-1&DIB-2)

4: Fire safe design(API 607)

5: Blowout-proof system

6: Anti-static design

7: Self cavity relief

8: Fugitive emission testing(optional)


Sealing Options

Soft seat: Metal to Metal O-Ring seal

Simple structure reliable sealing Applicable to particulate Reliable sealing low torque meet customers' high

wide application low cost. media conditions sealing reliability and low torque requirements



Blow-out proof stem:

The stem is made separately from the ball with integral T-type round shoulder, retained by bland .(other designs are Available on request)

Anti-static device:

Spring plus graphite type anti-static device are applied between the ball ,stem, gland Flange and body to keep the electrical Continuity between all the metallic components . And ensure the resistance lower than the most severe service requirement.

Grease injection device

For DN150 (NPS 6) & larger the stem and the valve seat are provided with a sealing grease injection device, For DN125 & smaller, we can provide the sealing grease injection device according to customer requirements. When the O-ring is damaged by accident, by injected sealant sealed to prevent the media through the valve seat ring and stem leaks.


Message Board
*Name
*E-Mail
*Message