Flanged Valve
GOST Ball Valve
GOST 球阀
OVERVIEW
GOST standard ball valve for oil and gas pipelines, petrochemical, water supply, heating systems, power generation, and metallurgy.
Applications
▸Oil and gas pipelines
▸Petrochemical and chemical processing
▸Water supply and wastewater treatment
▸Heating systems and industrial utilities
▸Power generation and metallurgy
Technical Specifications
01 — Features
GOST Standard – Manufactured to GOST 9698, 5762, and related dimensional standards
Quarter-turn operation – Quick 90° opening and closing with lever or gear
Full bore or reduced bore – Full bore for minimal pressure drop; reduced bore for compact design
Floating or trunnion mounted ball – Floating design for smaller sizes; trunnion for larger sizes and high pressure
Materials – Carbon steel (WCB), stainless steel (CF8/CF8M), alloy steel
Fire-safe design – Available with anti-static and fire-safe features for critical applications
02 — Advantages
Fast and easy operation – Simple quarter-turn action for quick shut-off
Tight sealing – Soft or metal seats provide reliable shut-off
Low flow resistance – Full bore design minimizes pressure loss
Durable and low maintenance – Few moving parts, long service life
Versatile connections – Flanged (GOST 12815), threaded, or welded ends
03 — Standards
Design & manufacturing: GOST 9698, GOST 5762
Flange dimensions: GOST 12815 / GOST 12820
Face-to-face dimensions: GOST 3706 (for flanged types)
Pressure ratings: PN16, PN25, PN40, PN64, PN100
Testing: GOST 9544
