Introduction
The Bellow Seal Gate Valve is a type of gate valve designed to provide secure isolation of pipeline media and prevent external leakage. It is used in industrial systems where safety and containment of hazardous, flammable, or critical fluids are essential.
Parameters and Specifications
| Material Structure | ASTM A216 WCB for high temp. d ASTM A351 CF8, CF8M for cast stainless steel valves |
| Working Pressure | Class150LB, Class300LB; |
| Nominal Diameter | NPS1/2~24";DN15~DN600mm |
| WorkingTemperatur | -29 to 425ºC |
Features
Metal Bellows Leak-Proof Seal - The welded metal bellows forms a continuous metal barrier around the stem, effectively preventing stem leakage and external emissions.
Double Sealing Structure - Combines bellows and auxiliary packing to ensure secondary sealing if the bellows is ever compromised.
Excellent Corrosion & Fatigue Resistance - Bellows are typically made of stainless steel or high-alloy materials for durability in high temperature and corrosive environments.
Reliable Gate Operation - Lifting gate provides a full open or close flow path with minimal resistance and stable shut-off performance.
Visual Position Indication - Rising stem or position indicator design allows easy monitoring of valve status.
Why Choose Us
Superior Sealing Technology - Advanced metal bellows design ensures zero external leakage, ideal for hazardous and sensitive media.
Strict Quality Control - Each valve undergoes rigorous material inspection, precision manufacturing, and pressure tests to meet industry standards.
Custom Solutions Available - We offer tailored material, connection, and actuation options to match specific project needs.
Comprehensive Support - Professional technical guidance from selection through installation and after-sales service.
Reliable Delivery - Stable production capacity ensures timely shipment to meet project schedules.
FAQ
Key Applications
Chemical & Petrochemical Plants - Prevent leakage of hazardous media in process lines.
Oil & Gas Industry - Isolation of flammable and toxic fluids in transmission and refining systems.
Power Generation - Steam, heat transfer and feedwater service requiring leak-tight components.
Pharmaceutical & Specialty Chemicals - Ensures purity and environmental safety in critical processes.
Water & Waste Treatment - Handling of aggressive or high temperature media with zero emissions.
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