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High Yield WPL6 Low Temperature Blind Flanges custom

High Yield WPL6 Low Temperature Blind Flanges Manufacturers

-- Steady & Reliable Manufacturer --

Extreme Cold Pipeline Isolation

In regions with sub-zero temperatures or in cryogenic process loops, standard carbon steel becomes dangerously brittle. Our High Yield WPL6 Low Temperature Blind Flanges are designed to provide a secure terminal seal for piping systems operating at temperatures as low as -45°C (-50°F). These flanges are forged from high-yield material that undergoes rigorous normalization and quenching to ensure a fine grain structure. As a professional manufacturer, we focus on the impact toughness of the WPL6 grade, ensuring it can withstand pressure surges and mechanical shocks in freezing environments without the risk of brittle fracture. Whether used for pipeline pigging stations or as permanent closures for future expansions in the Arctic, these blind flanges provide the ultimate safety margin for low-temperature isolation.

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WPL6 Technical Specifications

ParameterSpecification
Material GradeASTM A420 WPL6 / A350 LF2 Class 1
Impact TestCharpy V-Notch at -45°C (-50°F)
StandardsASME B16.5, MSS SP-75
Pressure RatingsClass 150 to Class 2500
FacingRaised Face (RF), Ring Type Joint (RTJ)
Yield StrengthMinimum 35,000 PSI (High Yield options available)

Low-Temp & Cryogenic Applications

WPL6 blind flanges are a critical component in the midstream oil and gas sector, particularly for pipelines in northern latitudes or high-altitude regions. They are extensively used in LNG (Liquefied Natural Gas) terminals and ethylene processing plants where process temperatures are consistently low. In offshore platforms operating in cold seas, these flanges isolate headers and equipment manifolds. They are also essential during hydrostatic testing in cold weather to seal the ends of the pipeline safely. Because they are forged for high yield strength, they are often specified for high-pressure gas storage facilities and CO2 transport systems where rapid decompression can cause extreme cooling of the piping components.

Material & Safety Advantages

  • Exceptional Low-Temp Toughness: Guaranteed impact resistance ensures safety in the harshest winter climates.
  • High Yield Strength: Capable of withstanding extreme internal pressures even at the terminal points of the system.
  • Reliable Sealing: Forged solid disc construction eliminates the risk of pinhole leaks often associated with low-quality cast alternatives.
  • Thermal Shock Resistance: The refined grain structure allows the flange to handle rapid temperature changes without cracking.

Trade & Logistics for Cold Service

We support payments via T/T, Irrevocable L/C, and project-based financing for energy infrastructure. Each WPL6 blind flange is coated with low-temperature resistant black primer or anti-rust oil and packed in seaworthy, vapor-barrier lined plywood cases to prevent moisture ingress during shipping. We provide a complete documentation package, including 3.1 Mill Test Certificates and specific Charpy V-Notch impact test results. We offer expedited shipping to major energy hubs in Canada, Russia, and Northern Europe. Our logistics team is well-versed in the requirements for "Arctic Grade" materials, ensuring all markings and certifications are perfectly aligned with project specifications for immediate on-site acceptance.

  • Q: Is WPL6 the same as A350 LF2?
  • A: WPL6 is technically a fitting grade (ASTM A420), while A350 LF2 is the flange forging grade. They are often cross-referenced as they share similar low-temperature performance characteristics.
  • Q: Do you offer RTJ faces for WPL6 blind flanges?
  • A: Yes, for high-pressure gas service (Class 600+), we highly recommend the Ring Type Joint (RTJ) face to ensure a metal-to-metal leak-proof seal.
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Jiangyin Gaoxin Pipe Fittings Co., Ltd.
About Us
JIANGYIN GAOXIN PIPE FITTINGS CO.,LTD.
Our company is a professional manufacturer of pressure piping components. As High Yield WPL6 Low Temperature Blind Flanges Manufacturers，Our product range covers butt-weld, socket-weld, and threaded pipe fittings, including flanges and customized non-standard parts. These products are widely used in industries such as oil & gas, chemical processing, power generation, shipbuilding, papermaking, metallurgy, pharmaceuticals, and food processing. We manufacture according to standards such as ASME, EN,JIS,DIN,ANSI,GOST, MSS, GB/T,HG, DL, SH, SY,and have a complete range of inspection equipment, a strict quality control system, and various certifications（PED,AD2000,EAC, ABS,BV, DNV,NORSOK M650, ISO9001,ISO14001,ISO45001,etc.）, making us a leader in the industry.

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