4 in. Ductile Iron Flanged Swing Check Valve — Catalog-Designated UL/FM
4 in. Ductile Iron Flanged Swing Check Valve — Catalog-Designated UL/FM
✓ In stock at the manufacturer — typically ships within 1–2 business days.
Freight item — ships LTL (Lower 48)- Flat-rate freight: $199 per order
- Freight orders of $5,000 or more ship free
Buying several, or need a liftgate or jobsite delivery? Request an exact freight quote — usually answered the same business day.
The 4 in. Ductile Iron Flanged Swing Check Valve — Catalog-Designated UL/FM (#96204UL) is a ductile iron swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow). It bolts between standard pipe flanges.
Midland catalogs this model under its UL/FM flanged swing-check family. Apex has not independently verified a UL or FM listing, approval, or file number. Confirm the manufacturer’s current documentation before specifying where third-party certification is required.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 96204UL |
| Nominal Size | 4 in. |
| Type | Swing Check Valve |
| Body Material | Ductile Iron |
| Connection | Flanged |
| Standard | Catalog-Designated UL/FM |
Key Features
- Automatic backflow prevention
- Ductile Iron construction
- Flanged connection
Common Applications
Water distribution, pump discharge lines, and general industrial flow systems requiring dependable backflow prevention.
Technical Resources
Expert Guides for This Product
- Check Valve Orientation & Installation — flow direction and mounting rules
- Check Valve Sizing Guide — why line size isn't valve size
- Slamming & Water Hammer — causes and fixes
- Check Valve Leaking? — diagnose and fix it
- Check Valve Chattering — the sizing problem nobody checks
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