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About DTC International

Blind Flange | ASME, EN & JIS Standard

DTC-BL-SS/CS Series

DTC supplies high-quality blind flanges for industrial piping systems, available in carbon steel, stainless steel and alloy materials. Manufactured according to ASME, EN and JIS standards with customizable sizes, pressure ratings and specifications.

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Detailed Introduction

Blind Flange for Industrial Piping Systems

A blind flange, also known as a blank flange or solid flange, is a pressure-rated flange used to close or isolate the end of a piping system, valve, or pressure vessel connection. Unlike other flange types, blind flanges have no center opening, providing a secure and reliable sealing solution for pipeline termination, maintenance, and future expansion.

DTC International supplies a wide range of industrial blind flanges for applications including oil & gas, petrochemical, water treatment, fire protection, power generation, marine, and general industrial piping systems.


Product Features

  • Available in carbon steel, stainless steel, alloy steel and customized materials
  • Manufactured according to international standards
  • Suitable for high-pressure and critical piping applications
  • Available with different pressure ratings and dimensions
  • Custom marking, machining and OEM solutions available

Available Standards

ASME / ANSI Standards

  • ASME B16.5
  • ASME B16.47 Series A & Series B

European Standards

  • EN 1092-1

Japanese Standards

  • JIS B2220

Other Standards

  • DIN
  • GOST
  • Customized specifications available

Materials

Carbon Steel

Common grades:

  • ASTM A105
  • ASTM A350 LF2

Applications:

  • General industrial pipelines
  • Oil & gas
  • Water systems

Stainless Steel

Common grades:

  • ASTM A182 F304
  • ASTM A182 F316

Applications:

  • Corrosive environments
  • Chemical processing
  • Food and pharmaceutical industries

Alloy Steel

Available for:

  • High temperature
  • High pressure applications

Product Specifications

Item Available Options
Size Range 1/2″ – 60″ and customized
Pressure Rating Class 150 – Class 2500
European Pressure PN6 – PN100
Facing RF, FF, RTJ
Manufacturing Forged / Plate Type
Surface Black coating, galvanized, anti-corrosion coating

Applications

Blind flanges are widely used in:

  • Oil & Gas Pipelines
  • Petrochemical Plants
  • Water Treatment Facilities
  • Fire Protection Systems
  • Power Generation
  • Marine Engineering
  • Industrial Piping Systems

Why Choose DTC Blind Flanges?

Factory-Backed Supply

Reliable production capability with strict quality control and inspection processes.

Multiple Standards & Customization

Flexible solutions covering ASME, EN, JIS and customized project requirements.

One-Stop Piping Solutions

From flanges and fittings to valves and complete piping components, DTC supports global industrial sourcing needs.

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