The Electric Pressure Sealed Gate Valve combines robust pressure-sealing technology with intelligent motorized actuation for fail-safe isolation in extreme-pressure applications. Engineered for ASME Class 900–4500 systems, this valve delivers zero-leak performance in power plants, offshore platforms, and hydrocarbon processing where manual operation is hazardous or impractical.
Key Technical Specifications
| Feature | Specification |
|---|
| Pressure Rating | ASME Class 900/1500/2500/4500 (ANSI 600–4500#) |
| Temperature Range | -50°F to 1200°F (-46°C to 650°C) |
| Actuation | Electric Motor (120V AC/24V DC) with IP67/NEMA 4X enclosure |
| Bonnet Design | Pressure-Sealed (Self-Energizing Under Load) |
| Sealing Technology | Live-Loaded Stem Packing + Metal-to-Metal Seat Seal |
| Compliance | API 607 (Fire-Safe), NACE MR0175 (Sour Service), SIL 3 (ESD Capable) |
| Connection Type | Flanged (ASME B16.5 RF/RTJ), Buttweld (ASME B16.25) |
| Body Materials | ASTM A216 WCB (Std.), WC6/WC9, C5, CF8M, Duplex 2205 |
| Cycle Life | 100,000+ Operations (Verified per MSS SP-119) |
Core Advantages
Pressure-Energized Sealing
Motor operators with torque sensing & position feedback enable remote control via PLC/DCS integration.
Optional fail-safe spring return for emergency shutdown (ESD) compliance.
Extreme Environment Ready
Non-rising stem design prevents debris ingress in buried/offshore installations.
Stellite 6 hard-faced seats withstand abrasive/cavitating flows.
Key Applications
The Electric Pressure Sealed Gate Valve is indispensable across industries relying on high-temperature fluid control:
Power Generation: Installed in boiler feedwater lines, steam turbines, and cooling systems to handle high-temperature steam and protect turbine components;
Petrochemical Refining: Used in distillation columns, cracking units, and hydrocarbon transfer lines to manage hot, corrosive crude oil byproducts;
Chemical Manufacturing: Ideal for heat-intensive reactions (e.g., polymer production) and handling hot chemical solvents, acids, or alkalis;
Oil & Gas Upstream/Downstream: Suitable for wellhead steam injection systems (enhanced oil recovery) and refinery process lines.
Why Choose This Valve Over Standard Designs?
| Standard Bolted Bonnet Valve | Electric Pressure Sealed Valve |
|---|
| ✘ Leak risk at 1,500+ PSI | ✔ Seal improves under pressure |
| ✘ Manual operation only | ✔ Remote automation with SCADA integration |
| ✘ Frequent bolt re-torquing needed | ✔ Zero maintenance bonnet |
| ✘ Limited to ASME 600 Class | ✔ Certified for ASME 4500 critical service
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