
Weld neck flange
Weld Neck Flange - Cangzhou Huishang professional manufacturer. GOST standard weld neck flanges, ISO 9001 certified....
Product Overview
Cangzhou Huishang Pipe Fittings Manufacturing Co., Ltd. supplies high-quality Weld Neck Flange to GOST standards for Russian and CIS piping systems. The long tapered hub provides strong reinforcement and evenly distributes stress into the pipe, making these flanges ideal for high pressure and high temperature applications.
Technical Specifications
Our GOST weld neck flanges are manufactured according to GOST 12821, covering nominal pressures from PN10 to PN40 with nominal sizes from DN15 to DN600. Sealing faces include raised face and flat face, machined to tight tolerances for leak-free joints.
Manufacturing & Quality
Every flange is produced under strict quality control, from raw material inspection through forging, heat treatment and precision machining. Comprehensive tests on chemical composition, mechanical properties and dimensions guarantee consistent product quality.
Applications
GOST standard weld neck flanges are widely used in oil and gas pipelines, chemical plants, power stations and other industrial piping systems in Russia and CIS countries.

