Pneumatic Actuated Wafer-Type Knife Gate Valve
Description
Pneumatic Actuated Wafer-Type Knife Gate Valve
| Parameter | Technical Specification |
|---|---|
| Size & Pressure | • Nominal Size: 14″ (DN 350) • Pressure Rating: JIS 5K (7 kgf/cm² @ 120°C) |
| Body Material | ASTM A216 WCB Carbon Steel |
| Critical Trim | • Gate Disc: 316 SS + HCR (Hard Chromium Plated, 300μm) • Stem: 316 SS (1.4401) • Seat: 25% Glass-Filled PTFE (RPTFE) |
| Actuation | • Type: Double-Acting Pneumatic Actuator • Limit Switches: Mechanical Cam Type (IP67) • Accessories: Filter Regulator + Solenoid Valve |
| Connection & Flow | • End: Wafer (JIS B2220 5K) • Flow Direction: Uni-Directional (Downstream Seating) |
| Surface Protection | • Blasting: Sa 2.5 (ISO 8501-1) • Coating: Epoxy-Polyamide, 250μm DFT (ISO 12944 C4) |
| Performance | • Leakage Class: – Seat: ISO 5208 Grade A (Zero Visible Leakage) – Stem: ISO 15848-1 Class B (Low Emission) • Temp. Range: -20°C to +120°C |
| Design Standards | • Valve: MSS SP-81 • Flanges: JIS B2220 • Face-to-Face: API 609 Table 8 |
| Testing & Certification | • Hydro Test: Per MSS SP-61 (Shell: 1.5x PN / Seat: 1.1x PN) • Leak Test: ISO 5208 Grade A • Cert: EN 10204-3.1 Material Certs |
