Blind Flange
Blind Flange

High precision, high pressure resistance, and fast delivery.

Long service life, good stability, corrosion resistance, high reliability, and high temperature resistance.

A flange cover is also called a blind flange or a blind plate. It is a flange without a hole in the middle, and its function is to seal the end of a pipeline. The form of the sealing surface is selected according to the working conditions, and it is fixed to the pipeline flange using bolts.

Flange covers have good overall performance and are widely used in pipeline connection systems for HVAC, water supply and drainage, fire fighting, mining, chemical, natural gas, and other industries.

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Product Parameters

TypeSealing surface typeNominal PressureTemperature RangeUsage Scenarios
Blind FlangeRF

PN6~PN420

Class150~2500

-196℃ ~ 800℃Pipeline end sealing or pressure test isolation
FF
RJ
TG
MFM


Product Features

1. Simple design:

A blind flange usually consists of a solid, circular metal plate with bolt holes or a clamping mechanism around the circumference.


2.Excellent sealing effect:

The sealing surface of the blind flange is precision-machined to ensure an outstanding and leak-proof seal.


3.High pressure resistance: 

Blind flanges have strong pressure-withstanding capabilities, allowing them to maintain effective and secure closure of a pipeline under high pressure.


4.Good temperature performance: 

Blind flanges are suitable for extreme temperature environments and will not have their function compromised by temperature changes.


5.Compliance with standards: 

Blind flanges adhere to multiple international and national standards, ensuring their interchangeability and compatibility.


Product Advantages

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Economic efficiency

Blind flanges have a relatively low manufacturing cost, and their assembly is simple using bolts or nuts, which improves production efficiency and reduces production costs.

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Strong pressure capacity

The structural design of blind flanges gives them a strong pressure-bearing capacity, enabling them to meet the demands of high-pressure working environments. They perform exceptionally well in pipeline connections involving high temperatures, high pressures, and corrosive media, ensuring the long-term stable operation of the pipeline system.

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Versatility

Blind flanges adopt a standardized design that complies with various national, international, and regional standards and specifications. This allows them to be used with equipment and pipelines from different brands, improving their interchangeability and versatility.

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Easy installation

The design of blind flange connections accounts for factors like disassembly, cleaning, maintenance, and replacement, offering good operational convenience. This reduces both the difficulty and cost of installation.

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Wide selection of materials and sizes

Blind flanges are available in a diverse range of materials and specifications. Materials include carbon steel, stainless steel, and alloy steel, and the size range is extensive. This allows for the selection of the appropriate material and size based on the nature of the medium and working conditions, ensuring the stability and corrosion resistance of the blind flanges in different environments.

Product Parameters

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production line

Packaging and transportation

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Application scenario

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