自力式锻钢闸阀

产品概览

The Self-actuated Forged Steel Gate Valve is a high-performance, automated solution designed for critical isolation tasks in oil and gas, petrochemical, and power generation industries. Combining the strength of forged steel construction with self-actuated operation, it ensures reliable, energy-efficient performance in high-pressure and high-temperature environments. This valve is strictly for on/off service and not suitable for throttling.

应用

石油和天然气: Wellhead isolation, pipeline shut-off, and refinery applications.
石油化工: High-pressure fluid control in chemical reactors and distillation units.
Power Generation: Steam isolation in turbines and boiler feedwater systems.
海运: Offshore platform and shipboard piping systems.

主要功能

Forged Construction

• Material Integrity: Forged A105, F22, or F316 steel for enhanced grain structure and impact resistance.
• Pressure Capacity: ANSI Class 1500–2500 (PN260–PN420).
• 温度范围: -29°C to 593°C (-20°F to 1100°F).

Self-actuated Operation

• Actuation Type: Pneumatic, hydraulic, or electric actuators.
• Control Signal: 4–20 mA, 3–15 psi, or 24–120 VDC.
• Fail-Safe Options: Spring-return for fail-open (FO) or fail-close (FC).

Gate Design

• Wedge Type: Flexible or solid wedge for zero leakage (ANSI Class VI).
• Fire-Safe: API 607 certified with secondary metal-to-metal sealing.
• Stem Design: Rising stem (OS&Y) or non-rising stem (NRS) options.

Sealing & Operation

• Seat Materials: Stellite 6 overlay, 13% Cr stainless steel.
• Stem Packing: Graphite or PTFE for high-temperature reliability.
• Operation: Manual handwheel override for emergency use.

Comparison with Manual Gate Valves