Fully Welding Trunnnion Ball Valve

LYV® is a valve manufacturer and supplier in Lishui, China, who can offer the customized and wholesale Fully Welding Trunnnion Ball Valve. It also called Welded Body Ball Valve, as the body is fully welded. The fully welded body ensures that no external leakage path from valve body. All welding processes are qualified and performed according to ASME Section IX. The welding for the valve body is to performed with Non-destructive tests.

Advantages:

Fully Welding Trunnnion Ball Valve, also named welded body ball valve, can offer the maximum strength with the minimum weight, as well as the maximum resistance the both pressure and stresses on the pipeline system. The compact spherical design eliminates the body flanges part, thus reducing the overall size and the leakage points, without the potential of fugitive emission from the flanges.

Normally, the Fully Welding Trunnnion Ball Valve are widely used in the natural gas transmission for the underground and buried installation. To make sure the sealing performance, there are various testing procedures on the valves, furthermore, the Visual, Magnetic Particle (MT), Ultrasonic (UT) and Radiographic test (RT) should also be conducted for the welding seams, if required.

Design & Testing International Standard:

Design Standard : ISO 14313/ ASME B 16.34 /API 6D

Inspection & Testing Standard : API 598/ API 6D

Fire Safe Testing Standard : API 607/API 6FA

Flange To Flange Length : ANSI B 16.10 -Short pattern/ Long pattern

End Connection : Flanged End to ANSI B 16.5, Butt Weld ends, Stock Weld ends.

Manufacturer Size and Pressure Range:

NPS 2” to 48 ” (for ANSI Class 150LB)

NPS 2” to 48” (for ANSI Class 300LB)

NPS 2” to 48” (for ANSI Class 600LB)

NPS 2” to 36” (for ANSI Class 900LB)

NPS 2” to 24” (for ANSI Class 1500LB)

NPS 2” to 12” (for ANSI Class 2500LB)

or

DN50 to DN1200 (for PN0.6Mpa, 1.6Mpa, PN2.0Mpa, PN2.5Mpa)

DN50 to DN1200 (for PN4.0Mpa, PN5.0Mpa)

DN50 to DN1200 (for PN6.3Mpa, PN10.0Mpa)

DN50 to DN900 (for PN15.0Mpa)

DN50 to DN600 (for PN25.0Mpa)

Pipe Bore: Full Bore(FB) /Reduce Bore (RB)

Construction Body: Full welding body

Seat Type: Soft type/ Hardseal Metal Type

Flow Directional: Uni-Directional/Bi-Directional

Installation: Above ground / Underground

Service Medium: Natural Gas, Oil, Water, Oxygon gas, etc

Service: SOUR, ISO 15156/ NACE MR0175

Fugitive Emission: ISO 15848

Feature: Fire Safety design

Anti-Static Design

Blow-out Proof Stem

Double block and bleek design

ISO 5211 Mounted IPAD

Valve Operation: Manual Lever / Worm-Gear /Actuator Operated/ Pneumatic Actuator / Motor Actuator

MOC (Bill of Material – BOM) :

Body &Bonnet: ASTM ASTM A105N (Carbon steel)

: ASTM A350 LF2 (Low temp. carbon steel)

: ASTM A182 F304/ F316 / F304L /F316L (Stainless Steel)

: ASTM A351 Gr. CF8C

: ASTM A890 4A / 5A/ 6A (Duplex Stainless Steel)

:ASTM A182 F51 / F53/ F55 (Duplex Stainless Steel)

Solid Ball : ASTM A105N+ENP/ A105N+TCC

: ASTM A 182 F304 / F316 (SS 304 / SS 316)

: ASTM A 182 F304L / F316L (SS 304L / SS 316L)

: ASTM A 182 F347

: ASTM A182 F51/ F53 /F55

Note: Harseal Metal Seat type Ball surface treatment: ENP, HCR, WC, welding Ni60/ Ni55

Stem : ASTM A182 F6a

:ASTM A182 F304 / F316 / F304L / F316L

:17/4 PH

: ASTM A182 F51/ F53/ F55

Metal Seat Ring: ASTM A105N+ENP/ A105N+TCC

: ASTM A 182 F304 / F316 (SS 304 / SS 316)

: ASTM A 182 F304L / F316L (SS 304L / SS 316L)

: ASTM A 182 F347

: ASTM A182 F51/ F53 /F55

Note: Harseal Metal Seat type Seat Ring surface treatment: ENP, HCR, WC, welding Ni60/ Ni55

Seat sealing : PTFE Virgin / 25% Glass Fillted PTFE – GFT / Carbon Filled PTFE – CFT

: PEEK / Delrin / Grafoil – Graphite Ring

Gland Packing : PTFE Virgin / 25% Glass Filled PTFE – GFT / Carbon Filled PTFE – CFT

: Grafoil – Graphite Ring

What is a Trunnion Mounted Ball Valve?

The trunnion mounted ball valve is a quarterly turning valve that helps stop the flowing medium in the pipelines. The unique feature of the trunnion mounted ball valve is its disk in a round or spherical shape placed in the centre. This keeps rotating to stop or start the flow.