Floating Ball Valve

Technical Summary

Nominal Size: ½” to 12”

Pressure Class: Class 150 to Class 1500

Temperature Range: -29°C to 200°C

Design Standards: API 6D, BS 5351, ASME B16.34

Face to Face: ASME B16.10

Fire Safe: API 607, API 6FA

Inspection and Testing: API 598, API 6D

Construction and Materials

Body and Pressure Retaining Parts

• ASTM A105
• ASTM A216 WCB
• ASTM A351 CF8M

Internal Components

• Ball: ASTM A105, ASTM A351 CF8M
• Stem: ASTM A182 F6a, ASTM A182 F316
• Seat Ring: PTFE / Reinforced PTFE / Metal seated design

Sealing System

• Seat: Soft seated / Metal seated
• Gasket: Graphite / PTFE
• Packing: Graphite / PTFE

Functional Design

Floating Ball Valve uses a floating ball design where the ball is not fixed by a trunnion support. Under line pressure, the ball moves slightly toward the downstream seat, creating a tight shut-off seal.

This design is widely used for low to medium pressure service and is preferred for compact shut-off applications where reliable sealing, simple construction, and ease of operation are required.

Material and Grade

Standard Materials

Component	Material	Grade	Typical Application
Body	Carbon Steel	ASTM A216 WCB / ASTM A105	General industrial and hydrocarbon service
Body	Stainless Steel	ASTM A351 CF8M	Corrosive fluids and chemical service
Ball	Stainless Steel	ASTM A351 CF8M	Corrosion resistance and shut-off performance
Stem	Stainless Steel	ASTM A182 F6a / F316	Torque transmission and corrosion resistance

Extended Materials (On Request)

• Duplex Stainless Steel (F51) for chloride-rich and offshore service
• Alloy 20 (CN7M) for mildly acidic chemical applications
• Hastelloy C276 for aggressive chemical media
• Inconel 625 for elevated temperature and pressure service

Additional Information

Valve Type	Floating Ball Valve
Mounting	ISO 5211 direct mounting pad
Operation	Manual, Electric Actuated, Pneumatic Actuated
Body Construction	Two-piece / Three-piece body design
Port Configuration	Full Bore / Reduced Bore
Seat Design	Soft seated / Metal seated

End Connections

• Flanged as per ASME B16.5
• Threaded ends: NPT / BSP
• Socket weld as per ASME B16.11
• Butt weld ends for applicable sizes

Applications

• Oil and gas industry: shut-off service in low to medium pressure lines
• Petrochemical industry: process isolation and fluid handling
• Water treatment and desalination: isolation in distribution and treatment systems
• Power generation: utility and auxiliary service lines
• Chemical processing: corrosive media and process shut-off
• General industrial service: compact isolation for liquid and gas systems