Materials of Construction (MOC)
| Component | Material Specification |
|---|---|
| Body & Bonnet | Ductile Iron (ASTM A536 / EN-GJS-400-15) |
| Stem / Spindle | SS 410 / SS 420 |
| Seat / Trim | EPDM / NBR / Bronze |
Technical Specifications
| Parameter | Specification / Standard |
|---|---|
| Manufacturing / Design Standard | EN 1171 / AWWA C509 / BS 5163 |
| Testing Standard | API 598 / EN 12266-1 |
| Pressure Rating | PN16 / PN25 |
Features & Benefits
Automatic Air Venting
Float-operated small orifice automatically vents accumulated air during pipeline filling and operation without manual intervention.
Prevents Air Locking
Continuous removal of entrained air prevents flow restriction, pump cavitation, and inaccurate flow meter readings in water distribution.
Anti-Shock Design
Damped float movement and cushioned orifice closure prevent water hammer and pressure surge during rapid filling.
Replaceable Trim
Replaceable float, orifice plug, and seat ring allow complete performance restoration without replacing the valve body.
Fusion-Bonded Epoxy Coating
250 µm FBE coating provides long-term corrosion protection in buried, submerged, or exposed water service environments.