3-Inch Class 150 Flanged Swing Check Valve | 904L Super Austenitic Stainless Steel JONLOO company

3inch Class150 904L flanged swing check valve. Super stainless steel for heavy corrosive service, automatic non‑return protection for chemical and seawater pipelines.

Tags:

• chemical pipeline valve
• stainless steel check valve
• corrosion resistant check valve
• 904L non‑return valve
• 3 inch check valve
• non‑return valve
• 904L check valve
• Swing Check Valve

This swing check valve is sized 3‑inch, pressure rating Class 150 with flanged end connections. The entire valve body is cast from 904L super austenitic stainless steel, delivering outstanding resistance to acid, alkali, chloride and seawater corrosion.

Adopting swing disc structure, the valve opens with medium flow force and closes automatically by gravity and reverse‑flow pressure, effectively preventing backward flow of process media. Low flow‑resistance design reduces pressure loss during operation.

Suitable for corrosive working conditions including chemical processing, seawater desalination, marine and petrochemical pipelines. Flanged ends ensure convenient installation, inspection and maintenance.

• Size: 3 Inch
• Pressure Class: Class 150
• End Connection: Flanged
• Body Material: 904L Super Austenitic Stainless Steel
• Valve Type: Swing Check Valve (Non‑return Valve)
• Feature: Anti‑corrosion, Automatic backflow prevention
• Application: Chemical, seawater, brine, corrosive‑medium pipelines