Check valve 904L

The following is a comprehensive information summary about 904L stainless steel check valve:
1、 Product features and material advantages
Corrosion resistance performance
904L stainless steel (UNS N08904) contains 20% chromium, 24% nickel, 4.3% molybdenum, and 1.5% copper. It exhibits excellent performance in non oxidizing acids such as sulfuric acid (0-98%), acetic acid, and phosphoric acid, and can withstand any concentration of sulfuric acid below 70 ℃.
Excellent resistance to pitting corrosion, crevice corrosion, and stress corrosion, suitable for chloride containing ion media.
Design standards
Compliant with American API 6D, ANSI B16.34, and HG20615 standards, with pressure ratings ranging from 150LB to 1500LB.
2、 Main types and technical parameters
Type characteristics Applicable scenarios
Swing check valve disc rotates around the axis, with low flow resistance, suitable for large-diameter (DN15-3000) chemical and petroleum pipelines
Axial flow check valve streamlined channel design, silent operation, DN40-500mm, PN16-250 sulfuric acid conveying, high flow rate system
Lift check valve with reliable sealing, vertically installed, PN16-25MPa for fine chemical and pharmaceutical industries

选型建议