LYV®, a professional industrial valve manufacturer, has introduced its
2‑Piece Floating Ball Valve, one of the most widely used valve types in industrial piping systems. The company exports valves to markets including North America, Southeast Asia, Russia, and the Middle East. With CNC machining equipment and a skilled workforce, LYV® has an annual production capacity exceeding 50,000 valves, supporting both standard and custom requirements.
Design and Construction
The 2‑piece floating ball valve features a split‑body construction with a floating ball design. It is engineered in accordance with ISO 17292, API 608, and API 6D standards. The valve is available in full bore (FB) or reduced bore (RB) configurations, with end entry body construction. Bonnet options include bolted bonnet or extended bonnet, and seat types are offered in soft seat or hard‑seal metal variants. Flow direction can be uni‑directional or bi‑directional, providing flexibility for different process requirements.
Size and Pressure Range
|
Pressure Class
|
Size Range (NPS)
|
Size Range (DN)
|
|
ANSI Class 150LB
|
1/2" – 10"
|
DN15 – DN250
|
|
ANSI Class 300LB
|
1/2" – 8"
|
DN15 – DN200
|
|
ANSI Class 600LB
|
1/2" – 4"
|
DN15 – DN100
|
Note: For PN ratings, the valve covers PN0.6, PN1.6, PN2.0, PN2.5 up to DN250; PN4.0 and PN5.0 up to DN200; PN6.3 and PN10.0 up to DN100.
Design and Testing Standards
|
Standard Category
|
Reference Standard
|
|
Design Standard
|
BS EN ISO 17292 (BS 5351) / ASME B16.34 / API 6D
|
|
Inspection & Testing
|
API 598 / API 6D
|
|
Fire Safe Testing
|
API 607 / API 6FA
|
|
Flange‑to‑Flange Length
|
ANSI B16.10 – Short pattern / Long pattern
|
|
End Connections
|
Flanged (ANSI B16.5), Butt Weld, Socket Weld
|
Key Features
-
Fire‑Safe Design – complies with API 607 / API 6FA
-
Anti‑Static Design – dissipates static charge for safe operation
-
Blow‑out Proof Stem – prevents stem ejection under pressure
-
Service Medium – natural gas, oil, water, oxygen, and other industrial fluids
-
Sour Service – compliant with ISO 15156 / NACE MR0175
-
Valve Operation – manual lever, worm gear, pneumatic actuator, electric actuator
Materials of Construction (BOM)
Body & Bonnet
|
Material Grade
|
Description
|
|
ASTM A216 GR. WCB / A105N
|
Carbon steel
|
|
ASTM A352 LCB / LCC / A350 LF2
|
Low‑temperature carbon steel
|
|
ASTM A351 GR. CF8 / CF8M
|
SS 304 / SS 316 (Stainless Steel)
|
|
ASTM A351 GR. CF3 / CF3M
|
SS 304L / SS 316L (Stainless Steel)
|
|
ASTM A351 Gr. CF8C
|
Stainless Steel
|
|
ASTM A890 4A / 5A / 6A
|
Duplex Stainless Steel
|
Solid Ball
|
Material Grade
|
Description
|
|
A105N + ENP / A105N + TCC
|
Carbon steel with electroless nickel plating / tungsten carbide coating
|
|
ASTM A182 F304 / F316
|
SS 304 / SS 316
|
|
ASTM A182 F304L / F316L
|
SS 304L / SS 316L
|
|
ASTM A182 F347
|
Stainless Steel
|
|
ASTM A182 F51 / F53 / F55
|
Duplex / Super Duplex Stainless Steel
|
Note for Hard‑Seal Metal Seat: Ball surface treatments include ENP, HCR, WC, and welding Ni60 / Ni55.
Stem
|
Material Grade
|
Description
|
|
ASTM A182 F6a
|
Martensitic stainless steel
|
|
ASTM A182 F304 / F316 / F304L / F316L
|
Stainless Steel
|
|
17‑4 PH
|
Precipitation‑hardening stainless steel
|
|
ASTM A182 F51 / F53 / F55
|
Duplex / Super Duplex Stainless Steel
|
Seats, Body Seals & Gland Packing
|
Material
|
Application
|
|
PTFE Virgin
|
Seat / Body Seal / Gland Packing
|
|
25% Glass Filled PTFE (GFT)
|
Seat / Body Seal / Gland Packing
|
|
Carbon Filled PTFE (CFT)
|
Seat / Body Seal / Gland Packing
|
|
PEEK / Delrin
|
Seat / Body Seal
|
|
Grafoil (Graphite Ring)
|
Seat / Body Seal / Gland Packing
|
Application and Service
The 2‑piece floating ball valve is suitable for a wide range of industrial applications including oil and gas, petrochemical, power generation, water treatment, and pipeline systems. It is available with flanged, butt weld, or socket weld end connections, and can be operated manually or with automated actuators. LYV® provides full after‑sales support and timely delivery, backed by its experienced engineering and production teams.
Note: For custom material combinations, pressure ratings, or actuator configurations, please contact LYV® directly with your project specifications.
