8-character blind flange (code name BLF)
The full name is “8-shaped blind flange,” with the code BLF. It’s a special type of flange cover that resembles the shape of the number “8.” It consists of two parts: a “blind flange (sealing end)” and a “ring flange (flow-through end).”
- Commodity name： 8-character blind flange (code name BLF)
Keywords:
Flange
Metal pipe fittings
- Product Description
-
1. Product Type
The full name is “8-shaped blind flange,” with the code BLF. It’s a special type of flange cover that resembles the shape of the number “8.” It consists of two parts: a “blind flange (sealing end)” and a “ring flange (flow-through end).”
2. Core Parameters
- Structural Function: By rotating the switch, you can quickly isolate or connect the pipeline by toggling between the "blind-end (sealing the pipe)" and the "ring-end (allowing medium flow)."
- Flange Compatibility: Compatible with flanges of the same specifications, such as raised face (RF) and male-and-female (MFM) flanges. Nominal diameters range from DN15 to DN600 (pipe diameters from 1/2" to 24").
- Pressure rating: Compatible with PN10 to PN420 (1.0 to 42 MPa), Class 150 to 2500 (American standard), and supports both high- and low-pressure operating conditions.
- Materials: Carbon steel (20#), stainless steel (304, 316L), alloy steel, etc., which must be compatible with the pipe/flange material.
3. Product Features
- Flexible operation: No need to remove the flange—simply rotate to switch between “sealing” and “flow-through” states, making it ideal for pipelines that require frequent isolation.
- Reliable sealing: The blind flange end fits snugly against the flange, and high-pressure sealing is achieved through gaskets, offering superior safety compared to conventional blind flanges.
- Application scenarios: Pipeline systems handling flammable, explosive, or toxic media such as petrochemicals, natural gas, and coal chemicals—used in equipment maintenance, process switching, and other similar scenarios.
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Yes we have professional engineer teams. We can deisgn and produce special products According to customers' request.
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We accept T/T, L/C at sight, PayPal & West union.
What is your deivery time?
Our delivery time is normally 7 to 15 days after deposit.
Do you provide free sample?
YES, we supply you free sample within one day.
Are you manufacture?
YES we are manufacturer.
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We accept a variety of internationally recognized payment methods, including primarily T/T (telegraphic transfer) and L/C (letter of credit). The T/T payment method is convenient—simply remit funds according to the bank account information we provide. The L/C payment method ensures transaction security through bank credit; we can accept an irrevocable sight letter of credit. Additionally, for certain long-term, stable partners who have been thoroughly evaluated, we can negotiate other suitable payment methods, such as PayPal, though the specific terms will be determined based on actual circumstances.
Are you a manufacturer?
As a comprehensive enterprise integrating processing, manufacturing, sales, and export, our factory boasts advanced production workshops and equipment, as well as solid process technology. Our main products include pipe fittings such as elbows, tees, flanges, and reducers, which are widely used in various industries including shipbuilding, petrochemicals, natural gas, and power plants. We export these products to countries including the United States, South Korea, Canada, Australia, Singapore, Turkey, and India.
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We not only sell products but also provide services, and we have a comprehensive after-sales service system.
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Related products
American Standard Welding Flange
Seeking cooperation
Cangzhou Yasheng Pipeline Manufacturing Co., Ltd. specializes in the R&D, production, and sales of products such as tees, elbows, flanges, special-shaped pipes, pipe fittings, and support hangers, providing high-quality pipeline system solutions to customers worldwide.
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North Second Ring Road, Yanshan County, Cangzhou City, Hebei Province