Flanged Valve
GOST Check Valve
GOST 止回阀
OVERVIEW
GOST standard check valve for water supply, wastewater treatment, petrochemical, power plants, heating networks, and industrial pipelines.
Applications
▸Water supply and wastewater treatment systems
▸Petrochemical and chemical processing
▸Power plants and steam systems
▸Heating networks and industrial pipelines
Technical Specifications
01 — Features
GOST Standard – Manufactured to GOST 9698, 5762, and related dimensional standards
Automatic operation – No external actuator required; opens with forward flow, closes when flow reverses
Disc types available – Swing type, lift type, or wafer type
Durable materials – Carbon steel (WCB), stainless steel (CF8/CF8M), alloy steel
Connection options – Flanged (GOST 12815), wafer, or threaded ends
02 — Advantages
Prevents backflow – Protects pumps, compressors, and other equipment from damage
Low pressure drop – Streamlined design minimizes flow resistance
Quick sealing – Fast response to flow reversal ensures system safety
Minimal maintenance – Simple construction with few moving parts
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
