Spectacle Blind

  • Description: Spectacle blinds consist of two plates, one with a hole (for flow) and the other solid (for sealing). They are used for isolating pipelines and are ideal for systems that need to be periodically opened or closed for maintenance purposes.
  • Applications: Spectacle blinds are often used in systems requiring regular flow interruption, such as in offshore platforms, refineries, and chemical plants.
  • Materials Available: Stainless Steel, Carbon Steel, Alloy Steel.
  • Standards: ASME B16.5, API 605
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Description

Flanges Overview

We offer a wide range of flanges for various industrial applications, including high-pressure, high-temperature, and complex pipeline systems. Our flanges are manufactured according to international standards and can be customized to meet your specific requirements.

Flange Types:

  1. Weld Neck Flange: Known for its strong connection to the pipe, the tapered neck provides superior strength and is ideal for high-pressure systems.
  2. Slip-on Flange: Easy to install and ideal for low to medium pressure applications, these flanges slip over the pipe and are welded at the top and bottom.
  3. Lap Joint Flange: Designed for use with a stub end, these flanges are ideal for systems that need to be frequently dismantled for cleaning or inspection.
  4. Tongue and Groove Face Flange: These flanges have a raised “tongue” and a corresponding “groove,” creating a strong seal when tightened.
  5. Blind Flange: Used to close the end of a pipe, this flange is perfect for preventing the flow of liquids and gases in a pipeline.
  6. Threaded Flange: No welding is required for installation. The flanges are simply screwed onto the pipe, commonly used in smaller sizes and lower-pressure systems.
  7. Socket Welding Flange: Designed for small-diameter, high-pressure systems, the pipe is inserted into the flange and welded.
  8. Orifice Flange: Used for measuring the flow rate in a pipeline, this flange is equipped with a differential pressure transmitter.
  9. Reducing Flange: Used to connect pipes of different diameters, enabling a smooth transition between the two pipe sizes.
  10. Spectacle Blind: A dual-piece blind flange with one solid disc and one perforated disc, used to isolate or open a pipeline.
  11. Welding Plate Flange: These flanges are typically used for smaller systems, welded directly onto the pipe.
  12. Ring Flange: Commonly used for pipe expansion joints, it provides flexibility in the system.

Size Range:

  • From 1/2” to 60” (~4 meters), our flanges are available in a wide range of sizes to meet the needs of different applications and industries.

Pressure Class:

  • 150LB to 2500LB, providing options for both low and high-pressure systems.

Materials:

We provide flanges in a variety of materials suitable for diverse industrial applications:

  • Stainless Steel: F304, F304L, F316, F316L, F317, F347H, F310S, F321, etc.
  • Carbon Steel: A105, A105N
  • Alloy Steels: F51, F53, F55, F60, F5, F9, F11, F22
  • Nickel Alloys: N04400, N06600, N06625, N08800, N08825, etc.

Manufacturing Standards:

Our flanges are manufactured to meet global standards, ensuring quality and reliability:

  • ASME/ANSI B16.5
  • ASME/ANSI B16.47A/B
  • EN1092-1
  • ASME/ANSI B16.36
  • MSS SP-44
  • JISB2220-2001
  • DIN 2527/2633/2655
  • JP (Japanese Standards)
  • API 605 (American Petroleum Institute)

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