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Blind Flange

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Flanges

Blind Flange

The Blind Flange stands as a critical safeguard in industrial piping systems, providing a robust, leak-proof seal to close pipe or equipment ports while accommodating diverse pressure demands through its versatile sealing surface designs. Precision-engineered from high-quality carbon steel, stainless steel, or alloy materials, this flange delivers unmatched durability and corrosion resistance, making it indispensable for high-pressure, high-temperature, or corrosive environments in oil and gas refineries, chemical plants, and power generation facilities. Its flat, concave-convex, or ring-joint sealing faces ensure a flawless match with companion flanges, creating a secure barrier against fluid or gas leakage even under extreme operational conditions. The bolted connection allows rapid installation and removal, enabling efficient maintenance or system modifications without compromising integrity—a vital feature for pressure testing, equipment upgrades, or emergency shutdowns.

Lap Joint Flange
Threaded Flange
SPECIFICATIONS
product details

Diameter

DN15（1/2"）~DN3800（150"）;

Pressure

0.25-25MPa

Certificate

PED, AD2000, EAC, ABS, BV, DNV, NORSOK M650, ISO9001, ISO14001, ISO45001, etc.

Function introduction

Close the pipe or equipment port to prevent medium leakage, often used with matching flanges. Sealing surfaces vary (flat, concave, convex, etc.) to suit different pressure requirements.

Application fields

Applicable to pipe flange connections in long-distance oil and gas pipelines, offshore platforms, chemical equipment, water treatment systems, and food and pharmaceutical industries, adapted to complex working conditions.

Packing

Seaworthy package,Plywood Cases or pallet or as per customers requirement

Featured Products

1、 Small batch minimum order；
2、Fast delivery；
3、Customized production；

From isolating sections of steam pipelines to sealing reactor vessels in pharmaceutical production, the Blind Flange ensures compliance with stringent safety standards while minimizing downtime costs. Its compatibility with a wide range of gasket materials and pressure classes (PN/Class ratings) makes it adaptable to virtually any critical application, including cryogenic storage, offshore drilling, and nuclear systems. Backed by rigorous non-destructive testing and adherence to ASME, EN, and ISO standards, this flange guarantees reliability in the most demanding scenarios. For engineers seeking to eliminate leakage risks and enhance system longevity, the Blind Flange is the ultimate choice. Secure your infrastructure today with our premium Blind Flanges—where precision engineering meets uncompromising safety, empowering your operations to perform with absolute confidence in the face of pressure, temperature, and time. Choose reliability, choose excellence, and build a safer tomorrow.

Our Production Process

From raw material to final delivery, we maintain rigorous control at every stage to ensure durability,performance, and consistency.

  • 01
    Cutting
  • 02
    Heating
  • 03
    Forging
  • 04
    Heat treatment
  • 05
    Rough machining
  • 06
    Non destructive examination
  • 07
    Machining by CNC lathe
  • 08
    Surface treatment
  • 09
    Final inspection
  • 10
    Marking
  • 11
    Packing
  • 12
    Shipment
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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 China stainless steel Blind Flange Suppliers and Custom carbon steel Blind Flange Company.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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Jiangyin Gaoxin Pipe Fittings Co., Ltd.
Blind Flange
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