LYV® is a casting trunnion mounted valve manufacturer and supplier in China, with the API 6D , ISO 9001 and CE approved. The casting trunnion mounted ball valves are the trunnion mounted ball valves that with the casting mold process to make the cast steel material body & bonnet. Usually, we will 2 or 3 times blasting treatment on the surface of the casting valves’ body to ensure the surface smoothly and nice.
Casting trunnion Mounted Ball Valve is designed with Double block and bleed or double piston type which is equipped with sealant injection system for both stem and seats to body cavity, so that it can drain from both upstream and downstream ends, to prevent seat or stem leakage.
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: End Entry
Bonnet/Cover type: Bolted Bonnet/Extended Bonnet
Seat Type: Soft type/ Hardseal Metal Type
Flow Directional: Uni-Directional/Bi-Directional
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 A 216 GR. WCB (Carbon steel)
: ASTM A352 LCB / LCC (Low temp. carbon steel)
: ASTM A 351 GR. CF 8 / CF 8M (SS 304 / SS 316) (Stainless Steel)
:ASTM A 351 GR. CF 3 / CF 3M (SS 304L / SS 316L) (Stainless Steel)
: ASTM A351 Gr. CF8C
: ASTM A890 4A / 5A/ 6A (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.
