Ductile Iron Flanged Swing Check Valve
PN16 Flanged Swing Check Valve with SS316 Seat for Reverse Flow Prevention
WEISSMILLER Ductile Iron Flanged Swing Check Valve is designed to prevent reverse flow in industrial piping systems. With swing type construction, RF flanged connection, and SS316 seating material, this valve is suitable for water, utility, and general industrial flow applications.
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Product Overview
Ductile Iron Flanged Swing Check Valve is a non-return valve used to allow flow in one direction and prevent backflow when reverse pressure occurs. The swing disc opens automatically by flow pressure and closes when flow stops or reverses.
Based on the product marking and nameplate, this valve is supplied in DN400 size with DI body material, DI + SS316 disc, SS316 seat, RF flange connection, and PN16 pressure rating. The valve body also includes a marked flow direction arrow for correct installation orientation.
Key Features
Swing Check Design
Automatic swing disc operation allows forward flow and prevents reverse flow without manual operation.
Ductile Iron Body
DI body construction provides strength and durability for water, utility, and industrial piping systems.
SS316 Seat
SS316 seating material supports improved corrosion resistance and reliable sealing performance.
PN16 Pressure Rating
Designed for PN16 pressure class applications in industrial and utility piping systems.
RF Flanged Connection
Raised face flange connection supports secure installation between pipeline flanges.
Flow Direction Marking
Direction arrow is marked on the valve body to help ensure correct installation.
Technical Specification
| Item | Specification |
|---|---|
| Product Type | Ductile Iron Flanged Swing Check Valve |
| Valve Type | Swing Check Valve / Non-Return Valve |
| Brand | WEISSMILLER |
| Size | DN400 |
| Body Material | DI |
| Disc Material | DI + SS316 |
| Seat Material | SS316 |
| Connection | RF Flange |
| Pressure Rating | PN16 |
| Cover Type | Bolted Cover |
| Operation | Automatic by Flow Pressure |
| Flow Direction | Marked on Body |
| Function | Reverse Flow Prevention |
| Date Marking | 2026.04 |
| Suitable Media | Water, Clean Water, Utility Water, and General Industrial Fluid |
| Application | Water Treatment, Pump Discharge Line, Utility Line, Industrial Piping, and Process Line |
Note: Detailed flange standard and internal trim material should be confirmed based on project requirement.
Product Details
Additional product views showing the ductile iron body, RF flanged connection, bolted cover construction, flow direction marking, and nameplate details for easier product identification.
Applications
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