BLRF stands for Blind Raised Face Flange, namely the raised face blind flange (flange cover) shown in the picture, a solid sealing flange component.

Basic Definition

· Flange Cover: Also known as blind flange, it is a solid disc flange with no through-hole in the center.

· Blind (B): Used for blanking and blocking, to completely seal off the end of pipelines.

· Raised Face (RF): Features a raised sealing surface, which achieves high-pressure sealing by matching with gaskets.

· Standard bolt holes are reserved on the outer ring, enabling accurate bolted connection with mating flanges of the same specification and pressure rating.

Core Features & Advantages

1. Superior Sealing & Isolation: Fully isolates and seals pipeline ends, pressure vessel and pump valve interfaces, achieving zero medium leakage.

2. Excellent Pressure Resistance: Manufactured via integral forging and precision machining, suitable for high-temperature and high-pressure working conditions.

3. Removable & Reusable: Can be disassembled by simply removing bolts for future pipeline extension, maintenance or capacity expansion.

4. Wide Compatibility: Dimensions and bolt holes strictly comply with mainstream flange standards such as ANSI/ASME B16.5 and GB national standards.

Typical Application Scenarios

· End sealing of oil, chemical and natural gas pipeline systems

· Manhole blanking for pressure vessels and storage tank maintenance

· Reserved pipeline port sealing, temporary isolation and equipment maintenance isolation

· Sealing for water supply & drainage, fire protection and power industrial pipelines

Common Materials & Specifications

· Materials: Stainless steel (304/316), carbon steel, alloy steel, etc. (the product in the image is a stainless steel polished type)

· Pressure Ratings: Class 150 / 300 / 600, etc.; National standard PN6 ~ PN160

· Nominal Diameter Range: DN15 ~ DN1200 and above customized sizes.

Blind Raised Face Flange.jpg

Timothy Holding Forging Industry

Phone：+86-13758897904
E-Mail：sales@forging-shafts.com
timothyforging@163.com
Website：http://www.forging-shafts.com
Add：No.68 Wanquan road,Shanquan Village ,Zhouzhuang Town

,Jiangyin City ,Jiangsu Province ,China

TimothyForgingIndustry

Blind Raised Face Flange