Libra Valves India Pvt. Ltd.

Leading Manufacturer of industrial valves for
Oil & Gas, Petrochemical, Power and Water Treatment

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Ball Valves

Parameter Specification
Valve Types Floating Type, Trunnion Mounted, Fully Welded
Size Range 2" to 72" (50 mm to 1800 mm)
Pressure Class Class 150, 300, 600, 900, 1500
Design Standard API 6D, API 608, ISO 17292
End Connection Flanged End (RF/ RTJ), Butt-Weld End
Operation Manual Handwheel, Gear-operated, Electric or Pneumatic Actuated

Overview

LIBRA Valves India Pvt. Ltd. manufactures high-performance industrial Ball Valves engineered for reliable shutoff, smooth operation, and long service life in demanding process applications. Our valves comply with API 6D, API 608, and ISO 17292 design standards and are widely used across Oil & Gas, Refinery, Petrochemical, Power, Chemical, Fertilizer, LNG, Marine, and Water Treatment industries.

LIBRA Ball Valves are available in Floating and Trunnion-Mounted configurations, offering precise sealing, minimal torque, and exceptional durability in both low and high-pressure service.

Design Highlights

LIBRA Ball Valves are engineered for high performance, safety, and reliability in Oil & Gas, Petrochemical, Refinery, Chemical, and Power applications. Designed as per global standards, they deliver smooth flow, low torque operation, and long service life with advanced sealing and safety features.

  • Full & Reduced Bore Options: Ensures high flow efficiency with minimal pressure drop.
  • Anti-Blowout Stem: Secure stem design enhances operational safety under high pressure.
  • Fire-Safe Construction: Certified as per API 607 / ISO 10497 for fire protection.
  • Double Block & Bleed (DBB/DIB): Positive isolation from both upstream and downstream sides.
  • Anti-Static Device: Prevents static buildup between ball, stem, and body.
  • Self-Relieving Seats: Automatically relieves cavity pressure for safe operation.
  • High-Performance Seat Materials: PTFE, RPTFE, PEEK, Devlon, Nylon, and metal-seated options available.
  • ISO 5211 Mounting Pad: Enables direct mounting of pneumatic/electric actuators.
  • Trunnion & Floating Designs: Suitable for all pressure classes with reduced operating torque.
  • Multiple Body Constructions: Available in 2-piece, 3-piece, and fully welded configurations.
  • Low-Emission Packing: Designed as per ISO 15848 to minimize fugitive emissions.
  • Wide End Connections: RF/RTJ flanged, BW, SW, NPT, and hub-end options.
  • Locking Provision: Prevents accidental valve operation during maintenance.
  • Corrosion Protection: Epoxy, PU, FBE coatings, and internal corrosion-resistant overlays.

Versatile Solutions

LIBRA Ball Valves are engineered to provide maximum flexibility across diverse industrial applications. With multiple design options, pressure ratings, material grades, and customization features, our valves deliver reliable performance in some of the most demanding service conditions worldwide.

  • Design Options:
  • Floating Ball & Trunnion Mounted Ball Valves
  • Side-Entry, Top-Entry, and Fully-Welded Body
  • Fire-Safe, Cryogenic, Metal-Seated, and Severe-Service Designs
  • Pressure Ratings: Available from Class 150 to Class 2500 (PN 10 to PN 420), suitable for both low-pressure utilities and critical high-pressure pipelines.
  • Temperature Range: Designed for service conditions from –196°C (Cryogenic LNG/LPG) to +815°C (High-Temperature Steam & Hydrocarbon Processing).
  • End Connections: Flanged (RF/RTJ), Butt-Weld (BW), Socket Weld, Threaded Ends, and Hub Ends for offshore/compact installations.
  • Size Range: From ½” to 60” (DN 15 to DN 1500), covering small instrumentation lines to major pipeline trunk applications
  • Material Options: Carbon Steel, Stainless Steel, Duplex, Super Duplex, Alloy Steel, Inconel, Hastelloy, Monel, and special NACE-compliant trims.
  • Seal Variants: Soft-seated (PTFE, RPTFE, Devlon, PEEK)
    Metal-seated (Tungsten Carbide, Chrome Carbide, Stellite)
  • Coatings for Corrosion/Severe Service: Epoxy, Polyurethane, FBE, ENP, Inconel overlays, Tungsten coatings, and cryogenic-compatible surface treatments.
  • Automation Ready: ISO 5211 mounting pad for electric, pneumatic, or hydraulic actuators with accessories like limit switches, positioners & gearboxes.
  • Testing & Compliance: 100% tested as per API 598, API 6D, API 607 (Fire Safe) and ISO standards for sealing, hydrostatic strength, and fugitive emissions.
  • Specialized Configurations: Double Block & Bleed (DBB), Double Isolation & Bleed (DIB-1 / DIB-2), Anti-Blowout Stem, Anti-Static Design, and Emergency Sealant Injection System.

Beyond Standards

LIBRA Ball Valves are engineered not just to meet API 6D, API 608 and ISO 17292 standards, but to exceed them in performance, reliability, and long-term durability. Our valves are designed with enhanced safety features, precision machining, and advanced sealing technologies to deliver unmatched operational excellence across critical Oil & Gas, Refinery, Petrochemical, and Power applications.

What Sets LIBRA Ball Valves Apart

  • Enhanced Sealing Integrity: Advanced seat designs provide zero-leakage performance even under fluctuating pressure and temperature.
  • Superior Torque Efficiency: Optimized ball and trunnion geometry reduces operating torque by up to 40%, ensuring smoother operation and longer cycle life.
  • High-Grade Surface Finish: Precision lapping of ball and seats reduces wear and ensures consistent tight shut-off over extended service periods.
  • Robust Cavity Pressure Management: Self-relieving seat system maintains safe cavity pressure, preventing overloading or body distortion.
  • Advanced Corrosion Protection: Multi-layer coating systems, including FBE, PU & epoxy, offer long-term resistance in aggressive environments.
  • Optimized Body Wall Thickness: Designed with added safety margins to withstand severe pipeline stresses beyond the minimum standard requirements.
  • High Life-Cycle Design: Engineered for maximum operating cycles, making them ideal for automated and high-frequency operation applications.
  • Severe-Service Options: Metal-seated, hard-coated, fire-safe, and cryogenic designs available for extreme temperature and abrasive media.
  • Precision Machined Components: All internal components are CNC-machined for consistent quality, interchangeability, and smooth operation.
  • Custom Engineering Flexibility: Tailor-made designs available for client-specific requirements, special media, and non-standard conditions.

Features That Add Value

LIBRA Ball Valves are built to deliver more than just standard performance — they provide long-term operational value, reduced maintenance cost, and enhanced reliability across demanding industrial applications.

  • Low Operating Torque: Optimized ball, stem, and seat geometry reduces actuator size, lowering automation cost.
  • Longer Seat Life: High-performance polymer and metal-seated options reduce wear, ensuring extended service intervals.
  • Ease of Maintenance: 3-piece and trunnion designs allow easy access to internal components without removing the valve from the line.
  • Bubble-Tight Shut-Off: Precision lapped ball and seat surfaces ensure consistent tight sealing, enhancing process efficiency.
  • Leak-Free Body Joint Design: Robust gaskets and precision machining minimize body leakage, lowering downtime risks.
  • Reduced Fugitive Emission: Advanced stem packing technology ensures low emissions, supporting environmental compliance.
  • Reliable Automation Interface: Standard ISO 5211 mounting pad ensures fast integration with electric, pneumatic, and hydraulic actuators.
  • Versatile Installation: Multiple end connections and face-to-face dimensions allow easy replacement of existing valves.
  • Enhanced Safety: Fire-safe construction, anti-static devices, and blowout-proof stem increase operational safety.
  • Wide Service Compatibility: Suitable for gas, crude oil, chemicals, water, steam, and abrasive media with optional coatings and trims.
  • Cost-Effective Lifecycle: Strong materials, corrosion protection, and heavy-duty design reduce total cost of ownership.

Certifications & Compliance

  • API Standards Compliance – Valves are designed and manufactured in accordance with API 6D, API 598, API 607, and other relevant international valve standards to ensure safety and reliability in critical operations.
  • ASME Compliance – Product design, pressure ratings, and material grades follow ASME standards, ensuring consistent mechanical integrity and long-term performance.
  • ISO 9001:2015 Certified – Ensures a robust quality management system covering design, manufacturing, inspection, and customer support processes.
  • ISO 14001:2015 Certified – Guarantees environmentally responsible manufacturing practices with controlled waste management and resource optimization.
  • ISO 45001:2018 Certified – Ensures safe and healthy working environments with strong occupational health and safety controls.
  • Fire Safe Certifications (API 607 / API 6FA) – Materials and construction are tested for fire safety, ensuring valve operation even under accidental fire conditions.
  • SIL-3 (Safety Integrity Level 3) – Confirms high functional safety performance for automated valve operation in critical shutdown systems.
  • Third-Party Approvals – Valves are routinely tested and certified by reputed inspection agencies such as TPI, EIL, BV, TUV, DNV, and Lloyd’s as per project requirements.
  • Complete Material & Test Traceability – Every valve includes full documentation, heat number traceability, and test certificates to meet global audit and compliance norms.

Applications

LIBRA Ball Valves are used in a wide range of industries where reliable shut-off, durability, and smooth operation are essential. Their fire-safe design, high sealing performance, and compatibility with liquids and gases make them suitable for demanding field conditions.

  • Oil & Gas Industry These valves are widely used in crude oil, natural gas, and condensate pipelines. They are suitable for wellhead lines, gathering stations, gas distribution networks, offshore platforms, and pig launcher/receiver installations.
  • Refineries & Petrochemical Plants Ball valves handle hydrocarbons, steam, fuel gas, and high-temperature process media. They are commonly used in units like FCC, DHDS, CCR, and distillation columns, as well as chemical reactors, solvents, and hydrogen service
  • Chemical & Fertilizer Plants Designed to handle corrosive, hazardous, and toxic chemicals such as ammonia, urea, methanol, and nitric acid. They are ideal for feed lines, reactor systems, and continuous process operations.
  • Power & Energy Sector Suitable for high-pressure and high-temperature lines such as boiler feed water, condensate systems, cooling water networks, and steam lines in coal, gas, nuclear, and renewable power plants.
  • Water & Wastewater Treatment Used in raw water intake systems, pump discharge lines, desalination plants, RO systems, and cooling water loops. They also perform well in slurry and abrasive water applications.
  • Marine & Offshore Applications Ball valves are ideal for seawater handling, ballast systems, bilge lines, cooling water networks, and fire-fighting systems due to their corrosion-resistant material options.
  • Cryogenic & LNG/LPG Service Special designs with extended bonnets are used for LNG terminals, storage tanks, gasification/liquefaction units, and low-temperature pipelines operating down to –196°C.
  • General Industrial Use Widely used for HVAC systems, compressed air lines, solvent handling, paint and adhesive transfer, and high-cycle automated on/off applications across various industries.

Optional Features

LIBRA Ball Valves can be customized with a wide range of optional features to meet specific service requirements, harsh operating conditions, and special industrial standards.

  • Extended stem for underground service
  • Bypass / Equalizing Arrangement: Optional bypass lines or equalizing connections can be provided for pressure balancing, smooth opening, and safer maintenance operations.
  • Drain & Vent Connections: Body drain and vent ports are available for flushing, testing, or removing trapped pressure during shutdown or maintenance.
  • Extended Stem / Cryogenic Bonnet: For LNG, LPG, and low-temperature applications, extended bonnets ensure safe operation and protect the stem packing from extreme temperatures.
  • NACE MR0175 / ISO 15156 Compliance: Special trims, materials, and hardness requirements are available for sour service and corrosive hydrocarbon environments.
  • High-Temperature & Metal-Seated Options: Metal-to-metal seating, hard coatings, and fire-safe designs can be provided for high-temperature or abrasive service conditions.
  • Actuation Options
  • Pneumatic actuators
  • Electric actuators
  • Hydraulic actuators
  • Gear operators (manual) Along with limit switches, positioners, solenoid valves, and control accessories.
  • Anti-Static Device: Anti-static balls and stems prevent the build-up of static charge, ensuring safety in hydrocarbon and flammable media applications.
  • Fire-Safe Construction: Fire-safe designs compliant with API 607 / API 6FA are available to ensure sealing integrity during fire exposure.
  • Low-Emission Packing (ISO 15848 / API 624): Special stem sealing systems with live-loaded packing can be provided for zero or low fugitive emissions.
  • Double Block & Bleed (DBB) Configuration: Ball valves can be supplied with DBB functionality for critical isolation, inspection, and process safety.
  • Flush Ports & Clean-Out Connections: Useful for slurry, polymer, or viscous fluid services where seat or cavity cleaning may be required.
  • Special Coatings & Linings: Options include FBE, epoxy, PTFE linings, hard chrome, tungsten carbide, and ENP coatings for corrosion or abrasion resistance.
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