Bellows Type Forged Steel Gate Valve

Product Overview

The Bellows Type Forged Steel Gate Valve is a high-performance solution designed for critical isolation tasks in applications requiring zero leakage and high reliability. Featuring a forged steel body and a bellows seal, it ensures exceptional sealing performance in high-pressure, high-temperature, and hazardous environments. This valve is strictly for on/off service and not suitable for throttling.

Applications

Oil & Gas: Wellhead isolation, pipeline shut-off, and refinery applications.
Petrochemical: High-pressure fluid control in chemical reactors and distillation units.
Power Generation: Steam isolation in turbines and boiler feedwater systems.
Nuclear: Primary and secondary circuit isolation in nuclear power plants.

Key Features

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).
• Temperature Range: -29°C to 593°C (-20°F to 1100°F).

Bellows Seal Design

• Zero Leakage: Metal bellows provide hermetic sealing, eliminating stem leakage.
• Durability: Bellows made of 316L stainless steel for long service life.
• Maintenance-Free: No stem packing required, reducing maintenance costs.

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.
• Operation: Manual handwheel, gear operator, or actuator compatibility.

Comparison with Packed Stem Valves