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  • Double Block and Bleed (DBB) and Single Block and Bleed (SBB) Ball Valves
  • Double Block and Bleed (DBB) and Single Block and Bleed (SBB) Ball Valves
  • Double Block and Bleed (DBB) and Single Block and Bleed (SBB) Ball Valves
  • Double Block and Bleed (DBB) and Single Block and Bleed (SBB) Ball Valves
Double Block and Bleed (DBB) and Single Block and Bleed (SBB) Ball Valves

Double Block and Bleed (DBB) and Single Block and Bleed (SBB) Ball Valves

  • >= 1 Bags
    $15
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Double Block and Bleed (DBB) and Single Block and Bleed (SBB) Ball Valves

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Double Block and Bleed (DBB) Valve: Provides absolute isolation in pipelines through dual sealing points, enabling safe pressure relief and maintenance in high-risk systems.
  • Single Block and Bleed (SBB) Valve: Offers reliable flow control and bleed functionality with a single seal, ideal for standard isolation and medium-pressure applications.

Key features

  • 1. Corrosion-Resistant Stainless Steel Construction

    • With a corrosion-resistant stainless steel body, ensure long-lasting durability in harsh industrial environments. The alloy material further enhances resistance to chemical exposure, outperforming standard carbon steel valves in aggressive conditions*.

  • 2. Versatile Pressure Compatibility

    • Supports high to low pressure ranges (high/medium/low), offering unmatched adaptability for diverse applications compared to single-pressure-rated valves. Ideal for systems requiring dynamic operational adjustments*.

  • 3. Fail-Safe Dual-Block and Bleed Design

    • The Double Block and Bleed (DBB) configuration provides redundant sealing, ensuring zero leakage during maintenance—critical for high-risk industries like oil and gas. Single Block and Bleed (SBB) models simplify isolation in standard commercial setups*.

  • 4. Streamlined Maintenance via Integrated Bleed Function

    • With built-in bleed ports, safely relieve pressure and maintain systems without full shutdown—reducing downtime by up to 30% versus traditional isolation methods*.

  • 5. Compliance with Industrial Safety Standards

    • Constructed to meet global industrial safety certifications (e.g., API 6D, ISO 14001), ensuring reliability in regulated environments. Verify specific certifications for your application*.

Product details

Double Block and Bleed (DBB) and Single Block and Bleed (SBB) Ball Valves

The Double Block and Bleed (DBB) and Single Block and Bleed (SBB) Ball Valves are engineered for precision control and reliability in high-demand industrial applications. Constructed from corrosion-resistant stainless steel and durable alloy materials, these valves cater to pressure ranges from low to high, ensuring versatility across diverse operational scenarios.

Technical specifications

FeatureSpecificationBenefit
Body MaterialStainless Steel / AlloyEnhanced corrosion resistance and durability
Pressure RatingHigh, Medium, LowCustomizable to match system requirements
Valve TypeBall ValveEfficient flow control and tight shutoff
Block & Bleed ConfigurationDBB (Dual Seal) / SBB (Single Seal)DBB ensures zero-leak isolation; SBB simplifies maintenance

Customization guide

Adjustable parameters include:

  • Material Grade: Opt for alloy for extreme corrosion resistance or stainless steel for cost-effective durability.
  • Pressure Class: Tailor to match system specifications (e.g., high-pressure for oil/gas applications).
  • Block & Bleed Configuration: Choose DBB for critical safety applications or SBB for cost-sensitive setups.

Get inspired

Whether managing high-pressure pipelines in petrochemical plants or low-pressure systems in HVAC, these valves deliver robust performance. Their block-and-bleed design ensures safe isolation and maintenance, making them ideal for industries requiring zero-leak integrity.

Choose your model

ParameterBase Model (Low Pressure)Advanced Model (Medium Pressure)Pro Model (High Pressure)
Max Pressure Rating150 bar+30% (195 bar)*+60% (240 bar)*
Material GradeStainless SteelAlloy 625Super Duplex Alloy
Block & BleedSBB StandardSBB/DBB OptionalDBB Mandatory

Supplier's note

  1. Three Technical Breakthroughs:

    • The Pro Model’s Super Duplex Alloy body withstands 20% higher pressure than industry benchmarks, enabling use in ultra-critical oil/gas infrastructure.
    • The Advanced Model’s Alloy 625 material offers 40% better corrosion resistance, ideal for chemical processing.
    • The DBB configuration in Pro/Advanced models provides dual-seal redundancy, eliminating leakage risks in high-hazard environments.

  2. Optimal Version Selection:

    • Base Model: Suitable for residential HVAC or low-pressure water systems where cost-efficiency is prioritized.
    • Advanced Model: Perfect for mid-scale industrial plants (e.g., food processing) needing corrosion resistance and optional dual-seal capability.
    • Pro Model: Mandatory for offshore drilling or petrochemical facilities requiring zero-leak safety and extreme pressure tolerance.

With the Pro Model’s super duplex alloy, you can safely handle corrosive fluids at 240 bar—20% beyond industry standards. Pair this with its DBB design to ensure leak-proof isolation during maintenance, safeguarding both equipment and personnel.

Frequently asked questions

  • Which DBB or SBB ball valve model is best for high-pressure industrial systems?

  • How does the stainless steel body of DBB/SBB valves enhance durability?

  • What’s the difference between DBB and SBB ball valves for pipeline isolation?

  • Are DBB/SBB ball valves certified for hazardous material handling?

  • Can DBB ball valves be customized for low-temperature applications?

  • How do I maintain a DBB/SBB valve to prevent seal wear?

  • Which material (stainless steel vs alloy) is better for marine environments?

  • Do DBB valves come with integrated bleed ports for pressure relief?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionIndustrial pipelines, chemical plants- Industry Standard: Carbon Steel (ASTM A105)
- Our Base: 304 Stainless Steel (ASTM A276)
- Our Advanced: 316L Stainless Steel (ASTM A276) ▲		▲ Advanced: 316L resists corrosive chemicals (e.g., sulfuric acid)
Base: Cost-effective for moderate environments		▲ Advanced: Higher cost vs Base ▲
Standard: Prone to corrosion in harsh environments
Pressure ClassOil/gas refineries, high-pressure systems- Industry Standard: 3000 psi (API 6D)
- Our Base: 3000 psi (API 6D)
- Our Advanced: 6000 psi (API 6D) ▲▲		▲▲ Advanced: Handles extreme pressures (e.g., deep-sea drilling)
Base: Meets most industrial standards		▲▲ Advanced: Requires thicker walls (adds weight)
Standard: Limited to medium-pressure applications
Sealing MechanismCritical fluid isolation (e.g., LNG)- Industry Standard: Single Block & Bleed (SBB)
- Our Base: SBB (ISO 15848)
- Our Advanced: Double Block & Bleed (DBB) ▲▲		▲▲ Advanced: Zero leakage (ASME B16.34) for hazardous fluids
Base: Reliable for non-critical systems		▲▲ Advanced: Complex design increases maintenance time
Standard: Risk of residual fluid in single seal
Temperature RangeCryogenic systems, high-heat processes- Industry Standard: -29°C to 425°C (ASTM F427)
- Our Base: -29°C to 425°C ▲
- Our Advanced: -196°C to 500°C ▲▲		▲▲ Advanced: Operates in cryogenic (-196°C) and high-heat (e.g., steam lines) ▲
Base: Suitable for standard temps		▲▲ Advanced: Requires specialized coatings (adds cost)
Standard: Fails at extreme temps
Maintenance RequirementsRemote/Unmanned facilities- Industry Standard: Annual seal inspection (ISO 15848)
- Our Base: Semi-annual inspections ▲
- Our Advanced: 5-year seal lifespan ▲▲		▲▲ Advanced: Reduces downtime by 70% in critical systems
Base: Lower maintenance than standard		▲▲ Advanced: Higher initial investment for advanced seals
Cost EfficiencyBudget-sensitive projects vs critical systems- Industry Standard: $200–$400/unit
- Our Base: $450–$600/unit ▲
- Our Advanced: $800–$1,200/unit ▲▲		▲▲ Advanced: 50% lower lifecycle costs in corrosive environments ▲
Base: Balances cost and performance		▲▲ Advanced: Higher upfront cost vs Base/Standard ▲
Standard: Limited to non-critical applications

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