Ball Valve
Ball Valve Supplier in Dubai UAE Valves builds quarter turn valves for tight shutoff and dependable isolation, from utility lines to pipeline service. A precision machined ball rotates on its stem to open or block the flow path. With simple operation, low pressure loss, and easy automation, ball valves are often the first choice for on off duty and can be configured for severe temperatures, pressures, and media.
How Ball Valves Work
A spherical ball with a through bore sits inside the body. Rotate the stem ninety degrees and the bore aligns with the pipeline for full flow; turn it across the line and the flow is shut off. Floating designs rely on downstream seat load to seal. Trunnion designs support the ball on bearings and use independent spring loaded seats for lower operating torque and reliable sealing at higher pressures.
Ball Valve Benefits
- Tight shutoff with quick quarter turn operation
- Full bore options that minimize pressure drop and allow pigging
- Fire safe and antistatic provisions available for safety and compliance
- ISO 5211 mounting that simplifies electric or pneumatic actuation
- Seat and coating choices matched to temperature, pressure, and media
Types of Ball Valves
- Trunnion Ball Valve: supported ball with spring loaded seats for high pressure and large sizes
- Double Block and Bleed Ball Valve (DBB): two seating barriers with a bleed port for positive isolation and verification
- Fully Welded Ball Valve: welded body for buried lines and low leak pipeline service
- Jacketed Ball Valve: heating jacket maintains product temperature and prevents solidification
- Top Entry Ball Valve: bonnet access for in line maintenance of ball, seats, and stem
- Forged Steel Ball Valve: compact, robust build for high pressure small bore duties
- Cast Iron and Cast Steel Ball Valve: economical block valves for general utility and water service
- Floating Ball Valve: seat loaded sealing for medium pressures and broad applications
- Investment Casting Ball Valve: precision cast small bore valves for utilities and instrumentation
Technical Specifications
- Size range: DN 15 to DN 1200 (½ in to 48 in), service dependent
- Pressure ratings: ASME Class 150 to 2500; PN 10 to PN 420
- Temperature range: −196 °C to +600 °C (material and seat dependent)
- Bore options: full bore and reduced bore
- End connections: flanged RF or RTJ, butt weld, socket weld, threaded for small sizes; hubs on request
- Face to face: ASME B16.10 and EN 558 series
- Seats: PTFE, RPTFE, filled PTFE, PEEK, Devlon, and metal seated (HVOF or Stellite) for severe service
- Features: antistatic device, blowout proof stem, cavity pressure relief, ISO 5211 actuator pad
Design Standards
- API 6D for pipeline and trunnion ball valves
- ISO 17292 and API 608 for industrial ball valves
- ASME B16.34 for design and pressure temperature ratings
- ASME B16.5 and B16.47 for flanges; ASME B16.10 for face to face dimensions
- Fire safe qualification to API 607 or API 6FA when specified
Inspection and Testing
- API 598 and ISO 5208 pressure and leakage tests for industrial valves
- API 6D factory acceptance tests for trunnion and pipeline valves, including hydrostatic shell and seat and low pressure gas seat
- Fugitive emission testing to ISO 15848 on request
- Helium leak testing for critical services when specified
- NDE per project requirement (MPI, UT, RT) and positive material identification where required
As a manufacturer, we record seat leakage classes and torque curves and supply EN 10204 3.1 or 3.2 certification packs.
Body and Trim Material Compatibility
Category | Material / Grade | Standards / Grades | Typical Applications |
---|---|---|---|
Cast Carbon Steel | WCB, WCC | ASTM A216 | Hydrocarbons, steam, general service |
Low Temperature Carbon Steel | LCB, LCC | ASTM A352 | Low temperature utility and process lines |
Forged Carbon Steel | A105, LF2 | ASTM A105 / A350 | High pressure small bore and topsides |
Cast Stainless Steel | CF8 (304), CF8M (316), CF3M | ASTM A351 | Corrosive media, water, chemicals |
Forged Stainless | F304/L, F316/L | ASTM A182 | Trims, stems, and high pressure bodies |
Duplex / Super Duplex | F51 (2205), F53, F55 (2507) | ASTM A182 / A890 | Seawater, RO and desalination, chlorides |
Super Austenitic Stainless | F44 (254SMO) | ASTM A182 / A351 | High chloride service, desalination |
Nickel Alloys | Monel 400, Inconel 625 / 718 | ASTM B564 | Sour gas, aggressive media, high temperature |
Hastelloy | C276, B3 | ASTM B574 / B564 | Oxidizing and halogenated media |
Alloy 20 | CN7M | ASTM A351 | Sulfuric acid duty |
Cast Iron | Class B, EN-GJL-250 | ASTM A126 Cl B / EN-GJL-250 | Water and utility duties |
Bronze / Aluminium Bronze | C83600, C95400, C95800 | ASTM B148 | Marine and seawater systems |
Titanium / Zirconium | Ti Gr.2, Gr.5; Zr R60702 | ASTM B348 / B493 | Chlorides, seawater, specialty acids |
Industries Served
- Oil and Gas: wellhead and flowlines, manifolds, tank farms, loading lines, pig launchers and receivers
- Pipeline and Terminals: block valves, scraper stations, meter skids
- Power Generation: fuel gas, condensate isolation, balance of plant
- Water and Desalination: plant headers, RO skids, intake and outfall lines
- Petrochemical and Chemical: unit isolation, offsites, utilities
- Marine and Offshore: topside utilities, seawater cooling, firewater systems
As a Ball Valve Supplier in Dubai, we support existing facilities and new builds with sizing, materials, testing scope, and actuator packages aligned to project specifications.
Special Features
- Double piston effect seating and automatic cavity relief on trunnion designs
- Emergency sealant injection to stem and seats for in service sealing assurance
- Lockable levers and gearboxes with mechanical position stops for operational safety
- Live loaded low emission stem packing with ISO 15848 options for emissions control
- Drain, vent, seat pocket flush, and sealant ports per project specification
- Partial stroke testing devices for ESD and SDV verification
Customization available for bore selection, seat and coating systems, stem extensions for insulation or buried service, end connections, NDE scope, and actuator packages to match your service and documentation needs.
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