EMERGENCY SHUT DOWN VALVE
Pneumatic Emergency Shut Down Valve
Alis Valves is a leading Pneumatic Emergency Shut Down Valve Manufacturer in…
APPLICATION
Emergency Shut-Off Application Solutions
Engineered for Safety, Reliability & Performance in Demanding Process Applications
Alis Valves manufactures premium Emergency Shut-Off (ESD) valve solutions engineered to provide rapid, reliable, and fail-safe isolation during emergency conditions. Emergency Shut Off Valves Manufacturer in India Our range of ball valves, butterfly valves, gate valves, trunnion ball valves, pneumatic actuated valves, electric actuated valves, and spring-return fail-safe actuators is designed for oil & gas, chemical processing, petrochemical plants, power generation, LNG terminals, storage facilities, and hazardous industrial applications. Built to international standards, our ESD valve solutions ensure immediate process isolation, personnel safety, environmental protection, and asset integrity during emergency shutdown events.
Fail-Safe Operation
Rapid Emergency Shutdown
SIL-Ready Automation
Reliable Performance
Valve Solutions for Emergency Shut-Off
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Application Scope & Process Solutions
Application & Process Areas
Engineered valve packages, automated assemblies, and specialized flow control systems designed for critical operating units.
Automated Valve Packages
Factory-assembled valve packages with pneumatic or electric actuators, accessories, and control components for reliable and efficient process automation.
Severe-Service & Control Valves
Engineered control and isolation valves for high-pressure, high-temperature, abrasive, and corrosive process conditions across demanding industrial applications.
Emergency Shutdown (ESD) Systems
Safety-focused emergency shutdown valve assemblies with suitable fail-safe actuation and control interfaces to support rapid process isolation in critical applications.
Why ALIS Valves for Emergency Shut-Off?
- Fast and reliable emergency isolation
- Spring-return pneumatic and electric fail-safe actuators
- Suitable for hazardous and critical process industries
- Compatible with DCS, PLC, and Safety Instrumented Systems (SIS)
- Leak-tight shut-off for maximum plant safety
- Manufactured according to API, ASME, ISO, and IEC standards
- Low maintenance with dependable long-term performance
Key Application Features
- Oil & Gas Pipelines
- Refineries
- Petrochemical Plants
- LNG Facilities
- Chemical Processing Plants
- Fuel Storage Terminals
- Tank Farms
- Power Generation Plants
- Offshore Platforms
- Hazardous Process Areas
- Emergency Isolation Stations
- Industrial Safety Systems
Built for Demanding Conditions
Pressure Rating
Up to Class 2500 (ASME B16.34)
Temperature Range
-46°C to +650°C
Size Range
1/2" to 20"
DN 15 to DN 500
End Connections
Flanged, Butt Weld, Socket Weld, Threaded, RTJ
Materials
WCB, CF8, CF8M, Duplex Stainless Steel, Chrome Moly Alloy Steel
Standards
API 6D, API 607 (Fire Safe), API 608, API 598, ASME B16.34, ISO 5211, IEC 61508, IEC 61511
Got Questions?
Frequently Asked Questions
Common questions about valve design, performance, and automation for this application.
An emergency shut-off valve is used to stop or isolate fluid flow when a specified emergency condition occurs or when an operator initiates a shutdown. These valves may form part of an Emergency Shutdown (ESD) system in oil and gas facilities, chemical plants and other industrial processes.
Ball valves, gate valves and other suitable shut-off valve designs may be used, depending on the process conditions and required isolation performance. Selection depends on the fluid, pressure, temperature, required closure time, leakage requirements and applicable safety specifications.
An ESD valve is selected as part of a defined emergency shutdown function, with specified response, isolation and reliability requirements. A standard shut-off valve should not automatically be considered suitable for ESD duty unless the complete arrangement meets the applicable functional-safety and project requirements.
An automatic emergency shut-off valve receives an initiating signal from a control or safety system and moves to its configured safe position. Depending on the application, it may close or open to reduce risk. The required action, response time and safe state must be defined in the system design.
Pneumatic, hydraulic and electric actuation arrangements may be considered, depending on the valve design and safety requirements. Selection should account for operating torque, required stroke time, available utilities, stored energy, fail-safe action and environmental conditions.
A fail-safe arrangement is designed to move or remain in a specified safe state when a defined failure occurs, such as loss of a power or utility supply. The required state may be fail-close, fail-open or another defined position, depending on the process hazard assessment and system design.
The required closure time depends on the process hazard analysis, system pressure, pipeline characteristics and potential consequences of rapid closure. The specified time must balance effective isolation with risks such as pressure surges and water hammer where relevant.
Select a valve with suitable sealing materials and verified leakage performance for the intended service. Correct installation, functional testing, inspection and maintenance are important. Where fire-safe or fugitive-emission requirements apply, verify the relevant test evidence and product documentation.
Provide the valve type, size, process fluid, design and operating pressure, temperature, required closure time, safe-state requirement, actuator type, leakage criteria, end connections and quantity. Include project specifications and any required functional-safety, testing or certification documentation.
