Reduced Bore Ball Valve
Cost-effective, compact venturi-port ball valve designed to ASME B16.34 and API 6D. Engineered for pipelines and plant manifolds where full line scraping is not necessary, providing lower operating torque, smaller actuator sizing, and guaranteed bubble-tight positive shutoff.
Design Criteria & Manufacturing Specifications
Manufactured strictly to international engineering codes with 100% factory pressure testing, full EN 10204 3.1 / 3.2 material traceability, and accredited third-party witness support.
| Engineering Parameter | Applicable Codes, Standards & Design Criteria |
|---|---|
| Design Standard | API Spec 6D, ASME B16.34, ISO 14313 |
| Port Diameter | Reduced bore / Venturi port per API 6D Table 1 |
| Torque Advantage | Up to 35% reduction in breakout torque compared to full bore equivalents |
| Fire-Safe Verification | Certified to API 607 7th Edition / ISO 10497 by Lloyd's Register |
| Body Construction | Cast Carbon Steel (WCB/WCC) or Forged Carbon Steel (A105N) |
| Seat Sealing System | Primary metal-to-metal contact with secondary elastomer seat rings |
| Cavity Overpressure Relief | Self-relieving seats automatically discharge overpressure into pipeline bore |
Reduced Bore Ball Valve Standard & Engineered Models
TSV manufactures an engineered lineup of Reduced Bore Ball Valve configurations for global oil & gas transmission pipelines, refinery manifolds, power plants, and severe industrial processes. Each unit undergoes 100% hydrostatic and pneumatic factory acceptance testing before dispatch.
Carbon Steel Reduced Bore Venturi Port Ball Valve
One-size or two-size reduced bore pattern offering lower weight, smaller actuator requirements, and substantial cost savings on long gas transmission lines.
Top Entry Maintenance Reduced Port Pipeline Ball Valve
One-piece rigid body with top-bolted bonnet allowing ball and seat removal directly on the pipeline without cutting welded line pipes.
Stainless Steel Chemical Reduced Port Ball Valve
Economical chemical isolation valve with reduced port orifice for clean fluid metering and process line isolation.
Large Diameter Reduced Port Pipeline Isolation Valve
Built for large gas gathering trunklines and offshore riser stations with certified DBB cavity relief and emergency sealant injection ports.
Venturi Port Cavitation Resistance & High-Velocity Pipeline Dynamics
Optimized reduced-port ball profile provides higher structural rigidity and significant weight reduction for high-pressure gas headers.
100% Hydrostatic Acceptance
Every valve is pressure-tested per API 598 / API 6D Rate A with zero allowable bubble leakage prior to factory crating.
EN 10204 3.1 Certified
Certified Mill Test Reports (MTR) with optical emission spectrometer chemical composition and mechanical impact values.
Global OXY Approved Supplier
Audited and approved on the global master vendor list (#24) of Occidental Petroleum for severe upstream duties.
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.
API 608 Series View Floating Ball Valve →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.
Current Series View Page Top ↑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 →Request Engineering Submittal & Commercial Quotation
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