Industrial Floating Ball Valve
Compact, zero-leakage quarter-turn isolation valves for chemical plants, gas utility headers, and skid packages. Featuring a free-floating precision mirror-polished ball, downstream pressure-energized seating, bottom-entry blowout-proof stem, anti-static grounding springs, and fire-safe certified graphite sealing.
Design Criteria & Manufacturing Specifications
Complies with API 608 stringent requirements for industrial process ball valves, featuring reinforced stem diameters to prevent deflection under high differential operating pressures.
| Engineering Parameter | Applicable Codes, Standards & Design Criteria |
|---|---|
| Design & Manufacturing Standard | API 608, ASME B16.34, ISO 17292, BS 5351 |
| Face-to-Face Dimensions | ASME B16.10, ISO 5752, EN 558-1 Series 1 / Series 3 |
| Flanged End Connections | ASME B16.5 RF / RTJ, EN 1092-1 Type 21 |
| Threaded & Socket Weld Ends | ASME B1.20.1 (NPT), ASME B16.11 (Socket Weld for 3-Piece valves) |
| Top Mounting Flange | ISO 5211 standardized direct mounting pad (no bracket required for actuation) |
| Fire-Safe Certification | API 607 / ISO 10497 Firesafe Design Verified (Secondary Metal-to-Metal Seat) |
| Anti-Blowout Stem Proof | Internal bottom-entry integral shoulder prevents blowout under internal pressure surge |
| Anti-Static Electrical Continuity | Spring-loaded conductive grounding between ball, stem, and body (< 10 Ohms) |
| Factory Pressure Testing | 100% shell test (1.5× rating) and low-pressure air seat test per API 598 Rate A (Zero Leakage) |
Critical Features of TSV Floating Ball Valves
Precision crafted to deliver light operating torque, reliable quarter-turn shut-off, and permanent fire-safe integrity.
Pressure-Energized Seating
Upstream line pressure pushes the floating ball against the downstream seat ring. The greater the line pressure, the tighter the positive shut-off seal achieved.
Fire-Safe Secondary Metal Seat
In the event of plant fire where soft PTFE/R-PTFE seats decompose, the floating ball shifts forward to contact an integral secondary metal seat lip, preventing catastrophic hydrocarbon leaks.
Live-Loaded Belleville Gland
Conical Belleville disc springs continuously maintain compressive force on stem graphite packing rings, compensating for thermal cycling, mechanical wear, and pressure spikes.
Blowout-Proof Stem Safety
The stem is inserted from the internal body cavity with an integral T-head shoulder. Even under line pressure surges or gland bolt failure, the stem cannot be ejected.
ISO 5211 Direct Actuation
Precision machined ISO 5211 top flange enables direct mounting of pneumatic rotary actuators, electric operators, or locking devices without custom brackets or coupling adapters.
Mirror-Polished Solid Ball
Solid forged or investment cast balls are CNC turned and diamond polished to Ra ≤ 0.2 μm, minimizing friction coefficient against soft polymer seats for smooth, low-torque operation.
Complete Floating Ball Valve Models & Technical Capabilities
Browse TSV's complete portfolio of certified floating ball valve models. Engineered to order with customizable trims, metallurgy, pressure ratings, and factory-fitted actuation for mission-critical installations.
Flange Gear-Operated Floating Ball Valve
Heavy-duty enclosed worm gear actuated floating ball valve for tight pipeline installations requiring lower manual operating rim effort.
Cast Steel Lever-Operated Floating Ball Valve
Standard industrial utility ball valve with locking oval handle, fire-safe graphite packing, and grounded anti-static stem mechanism.
Pneumatic Automated Floating Ball Valve (Hard Metal Seal)
Fitted with ISO 5211 direct-mount rack & pinion pneumatic actuator and satellite hardened metal-to-metal seating for abrasive thermal duty.
Forged Steel High-Pressure Floating Ball Valve
Heavy forged alloy unibody or 2-piece body designed for high-vibration skids, hydraulic power units, and high differential gas lines.
One-Piece Unibody Screwed / Flanged Ball Valve
Reduced-port one-piece body eliminating intermediate body flanges, maximizing structural rigidity in high-stress pipeline tie-ins.
Full Bore Process Split-Body Floating Ball Valve
Full unobstructed circular port ensuring zero process flow restrictions and minimal pressure loss in viscous and liquid chemical lines.
Explore All 5 Ball Valve Sub-Categories
1:1 aligned with TSV factory catalog. Navigate to specialized floating, multi-port, metal-seated, or reduced bore configurations.
Trunnion Mounted Ball Valve
High-pressure pipeline transmission with spring-energized floating seats and double block & bleed (DBB).
API 6D Series View Trunnion Mounted Ball Valve →Floating Ball Valve
API 608 process plant shut-off with upstream differential sealing and compact two-piece split body.
Current Series View Page Top ↑Metal To Metal Seat Ball Valve
HVOF tungsten carbide coating for high-temperature (+550°C) abrasive slurry and catalyst media.
Severe Service View Metal To Metal Seat Ball Valve →Reduced Bore Ball Valve
Economical venturi port pattern reducing operating torque, package footprint, and actuator sizing.
Venturi Port View Reduced Bore Ball Valve →Three-Way Multi-Port Ball Valve
L-port and T-port diversion and mixing ball valve for multi-stream flow routing without multiple valves.
Multi-Port Flow View Three-Way Multi-Port Ball Valve →Configure & Request a Quote for Floating Ball Valves
Submit your process data. TSV application engineers will verify seat polymer compatibility, actuator torque sizing, and provide a competitive quote within 24 hours.