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

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EMERGENCY SHUT-OFF SOLUTIONS

Emergency Shutdown & Isolation Applications

ALIS Valves offers valve solutions for emergency isolation across process plants, pipeline networks and critical industrial applications. Selection depends on pressure rating, process media, actuator requirements, fail-safe operation and applicable safety standards.

Emergency Shut-Off for Process Plants

Emergency shut-off valve solutions for refineries, chemical plants and industrial process lines, supporting rapid isolation during emergency conditions.

Pipeline Emergency Isolation

Emergency isolation valves for pipeline networks, designed to help stop flow quickly when triggered by the shutdown system.

Offshore & Hazardous Area Shutdown

Emergency shut-off valve solutions for offshore and hazardous-area installations, supporting process isolation and operational safety.

Engineered For Emergency Shut-Off Application

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.

What is an emergency shut-off valve?

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.

Which valves are used for emergency shut-off applications?

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.

What is the difference between an ESD valve and a normal shut-off valve?

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.

How does an automatic emergency shut-off valve work?

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.

Which actuators are suitable for emergency shut-off valves?

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.

What is a fail-safe emergency shut-off valve?

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.

How quickly should an emergency shut-off valve close?

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.

How can leakage be minimized in emergency shut-off systems?

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.

What technical details are required when purchasing an emergency shut-off valve?

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.

Other Applications We Serve

Emergency Shut-Off Application Solutions