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Alloy Steel Pipe Fittings Blind Flange BL 1/2" Class 2500# ASME B16.5 For High Pressure Pipeline End Sealing A182F5
1. Product Overview & Core Advantages
This alloy steel blind flange is integrally forged in strict accordance with ASME B16.5 standard, designed for ultra-high pressure working conditions up to Class 2500#. Compared with low-pressure blind plates, it adopts thickened SCH80 wall thickness and dense forging structure without pores, cracks or internal defects, with extremely strong compression resistance and impact resistance. The precision machined RF sealing surface fits perfectly with pipeline gaskets to achieve complete medium isolation and zero leakage. Alloy steel substrate features stable mechanical performance under high temperature and high pressure, not easy to deform or crack after long-term operation. Each blind flange passes chemical composition detection, dimensional tolerance inspection and hydraulic burst pressure test before leaving factory, fully meeting the strict safety standards of heavy industrial high-pressure pipeline systems.
2. Technical Parameter
Parameter Item
Specification Details
Material Grade
High Strength Alloy Steel
Executive Standard
ASME B16.5
Product Model
BL Blind Flange
Nominal Size
1/2 Inch
Wall Thickness Grade
SCH 80
Pressure Rating
Class 2500# Ultra High Pressure
Sealing Surface
RF Raised Face
Core Features
Ultra-high pressure resistant, thickened body, fully sealed, high temperature resistant
Applicable Medium
High-pressure steam, crude oil, industrial chemical high-pressure fluid
3. Product Function & Application
The core function of BL blind flange is to completely block and seal the end of pipelines to cut off fluid passage temporarily or permanently. It facilitates pipeline maintenance, pressure testing and system reconstruction without cutting pipes. It is widely applied in heavy-duty petrochemical plants, thermal power stations, natural gas transmission stations, boiler high-pressure piping and other ultra-high pressure industrial fluid delivery projects.
4. Packaging, Trading & After-sales Support
All blind flanges are wrapped with anti-rust oil and waterproof plastic film, isolated by shockproof foam and packed in solid fumigated wooden export cases to prevent scratches, rust and extrusion damage during long-distance sea transportation. We support diversified payment terms, adjustable delivery cycles and customized sizes & pressure grades. If customers receive defective products, mismatched specifications or goods damaged in transit, free return and exchange services are available. Please contact us for bulk preferential quotations, CAD technical drawings and one-stop customized pipeline solutions.
TOBO GROUP sales head offce in Shanghai.
We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area of 6,8,000square meters, existing 260 workers and 45 technicia... TOBO GROUP sales head offce in Shanghai.
We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area of 6,8,000square meters, existing 260 workers and 45 technicia...
