ASME B16.34 Double Block And Bleed Valve

Structural Features

• Double Blocking Function: The valve is designed with two independent blocking balls, enabling double isolation to ensure the medium in the pipeline is completely cut off.

• Bleeding Function: The valve has a built-in bleeding channel, which can automatically discharge the pressure in the valve cavity when the valve is closed, preventing pressure accumulation and ensuring operational safety.

• Compact Design: The integrated design reduces installation space and weight, while minimizing potential leakage points and improving the overall safety of the system.

• Multiple Material Options: The valve body and valve core can be made of various materials (such as carbon steel, stainless steel, alloy steel, etc.) to adapt to different medium and working condition requirements.

• Fire-Safe Design: Compliant with the API 607 standard, the valve can maintain sealing performance even in case of fire, preventing medium leakage and ensuring system safety.

• Anti-Static Device: Equipped with a built-in anti-static device, it effectively prevents static accumulation, reduces the risk of fire and explosion, and is particularly suitable for controlling flammable and explosive media.

• Low-Leakage Design: Advanced sealing technology is adopted to ensure the valve maintains a low leakage rate during long-term use, meeting environmental protection requirements.

• Multiple Connection Methods: Various connection methods such as flange connection and threaded connection are available to meet different engineering needs.

Technical Parameters

• Size Range: 2″ to 56″ (DN50 to DN1400)

• Pressure Rating: 150LB to 2500LB (PN20 to PN420)

• Temperature Range: -29℃ to +200℃

• Materials:

• Valve Body: Carbon steel (WCB), stainless steel (304/316), alloy steel

• Ball: Stainless steel (304/316)

• Stem: Stainless steel (304/316)

• Sealing Material: PTFE, RPTFE

• Connection Methods:

• Flange connection (compliant with ASME B16.5 standard)

• Threaded connection (compliant with ASME B1.20.1 standard)

• Design Standards: ASME B16.34, API 600

• Testing Standards: API 598, ISO 5208

• Fire-Safe Design: API 607

• Applicable Media: Oil, natural gas, water, steam, chemical media, etc.

Application Scenarios

• Oil and Gas Industry: Used in oil and gas field exploration, gathering, transportation, and processing systems to ensure reliable isolation and control of media.

• Chemical Industry: Suitable for conveying and reaction systems of various chemical media, preventing medium leakage and ensuring production safety.

• Pharmaceutical Industry: Applied in pipeline systems during pharmaceutical production to ensure medium isolation and cleanliness in the drug manufacturing process.

• Food and Beverage Industry: Meets food-grade requirements, used in pipeline systems for food and beverage production to ensure hygiene and safety.

• HVAC: Used in cooling water systems, hot water systems, etc., to ensure efficient operation of the system.

• General Industrial Applications: Suitable for controlling and isolating media such as water, oil, and gas.

Advantages and Value

• High Reliability: The double blocking function and bleeding design ensure the valve operates stably in high-pressure, medium-to-high temperature environments, reducing maintenance frequency and downtime.

• High Safety: Fire-resistant and anti-static designs, along with reliable sealing performance, effectively reduce leakage risks and protect the safety of personnel and equipment.

• Automated Operation: Multiple actuator options are available to realize remote control and automated operation, improving system flexibility and safety.

• Easy Installation and Maintenance: The compact design simplifies the installation process and facilitates maintenance and overhaul.

• Wide Applicability: Multiple material options and a broad range of pressure and temperature ratings enable adaptation to various complex working conditions and medium characteristics.