16" Wafer Butterfly Valve — Replaceable Cartridge Seat Design
The 16-inch (DN400) wafer butterfly valve from Laux Valve features an innovative replaceable cartridge seat design. Unlike conventional lined or bonded seat valves, the cartridge seat can be replaced in the field without special tools, significantly reducing maintenance downtime and extending the valve's service life.
Key Features
- Replaceable Cartridge Seat — Quick field replacement reduces downtime. No special tools required.
- Wafer Type Design — Compact, lightweight, and cost-effective for installation between flanges.
- Ductile Iron Body — ASTM A536 Grade 65-45-12 ductile iron for strength and durability.
- Class 150 / PN16 — Rated for standard industrial pressure classes.
- API 598 Tested — 100% hydrostatic shell and seat leakage testing.
- Full Traceability — Each valve serial numbered with recorded test data.
Technical Specifications
| Parameter | Specification |
|---|
| Size | 16" (DN400) |
| Type | Wafer Butterfly Valve |
| Seat Design | Replaceable Cartridge Seat |
| Body Material | Ductile Iron ASTM A536 65-45-12 |
| Disc Material | Ductile Iron / Stainless Steel CF8M (Optional) |
| Seat Material | EPDM / NBR / PTFE (Optional) |
| Pressure Rating | Class 150 / PN16 |
| Face-to-Face | API 609 Table 1 |
| Testing Standard | API 598 / EN 12266-1 |
| Operation | Lever Handle / Gearbox / Pneumatic Actuator |
Why Choose the Replaceable Seat Design?
Traditional butterfly valves require complete valve replacement or factory refurbishment when the seat wears out. The replaceable cartridge seat design allows:
- In-situ seat replacement in minutes, not hours
- No valve removal from the pipeline
- Reduced spare parts inventory (stock seats, not complete valves)
- Extended valve body life — the body outlasts multiple seat replacements
- Lower total cost of ownership over the valve's lifetime
Applications
- Water treatment and distribution systems
- HVAC and building services
- Industrial process cooling
- Irrigation and agricultural systems
- Municipal water supply
Ordering Information
For pricing and availability, contact our sales team:
Email: james@lauxvalve.com | Tel: +86 18920833829
