Azbil Smart ESD Device 700 Series AVP77_/78_/79_ | SIL 2/3 Certified, with PST for Emergency Shutdown Valve Diagnostics

The Azbil Smart ESD (Emergency Shutdown) Device 700 Series (Models AVP770, AVP771, AVP772, AVP780, AVP781, AVP782, AVP790, AVP791, AVP792) is a critical component designed for Safety Instrumented Systems (SIS). It provides reliable valve positioning and advanced diagnostic testing for emergency shutdown (ESD) valves, directly contributing to enhanced plant safety and operational integrity.

Purchase details

This intelligent device is engineered for universal compatibility and is not limited to specific control valves, allowing it to interface with any major brand of control valve worldwide. It is certified to SIL 2 and SIL 3 in accordance with the IEC 61508 standard, making it suitable for the most demanding safety-critical applications.

Its core safety function is enabled by the integrated PST (Partial Stroke Test) and FST (Full Stroke Test) capabilities. These features allow for periodic in-service testing of ESD valves to diagnose potential abnormalities and verify their functional readiness without causing a full process shutdown, thereby ensuring system reliability.

Key Features & Benefits

Enhanced Safety & Compliance: SIL 2/3 certification ensures the device meets rigorous international safety standards for use in safety instrumented systems.
Predictive Valve Diagnostics: Integrated PST and FST functions allow for proactive testing and health monitoring of emergency shutdown valves, preventing unexpected failures.
Universal Valve Compatibility: Offers unparalleled flexibility by working with any brand of control valve, simplifying system design and inventory management.
Safe Operation in Hazardous Areas: Features a Local User Interface (LUI) with an LCD and buttons that is designed for safe use in explosive atmospheres, enabling configuration and testing on-site.
Energy-Efficient Control: Equipped with a control relay that optimizes air consumption, improving energy efficiency and providing more stable control.
Advanced Connectivity: Supports integration with plant asset management systems using industry-standard tools like EDDL and DTM (Device Type Manager).

Technical Specifications

The following table summarizes the key technical parameters for the Azbil 700 Series Smart ESD Device:

Attribute	Specification
Model Series	Smart ESD Device 700 Series
Model Numbers	AVP77_, AVP78_, AVP79_ (AVP770, AVP771, AVP772, AVP780, AVP781, AVP782, AVP790, AVP791, AVP792)
Primary Application	Safety Instrumented Systems (SIS) for emergency shutdown valves
Safety Certification	SIL 2 / SIL 3 (IEC 61508)
Key Diagnostic Features	PST (Partial Stroke Test), FST (Full Stroke Test)
Input Signals	4 to 20 mA DC, 0 to 20 mA DC, 0/24 VDC, HART® communication
Travel Range	10 to 100 mm (linear actuator), up to 90° (rotary actuator)
Supply Air Pressure	140 to 700 kPa
Ambient Temperature Range	-40 to +80 °C
Control Valve Compatibility	Universal – compatible with all major brands
User Interface	Local User Interface (LUI) with LCD, operable in explosive atmospheres
Additional Features	Auto-setup, fault output (analog or contact), control relay for energy saving

Typical Applications

The Azbil Smart ESD Device 700 Series is essential for industries where process safety is paramount. Its primary role is in Safety Instrumented Systems (SIS) across:

Oil & Gas Refining and Petrochemical Plants
Chemical Processing Facilities
Power Generation Stations
Pharmaceutical Manufacturing
Any process unit requiring certified safety interlocks and emergency shutdown capabilities.

This device is specifically designed for the critical task of ensuring that emergency shutdown valves will operate reliably when called upon, providing peace of mind and regulatory compliance.

If you have any questions about specifications, model selection, or suitability for your specific safety application, please contact the sales team at Kateteco. We are here to provide expert support.

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KateTeco (Tianjin) Technology Co., Ltd. serves as an outstanding partner in the field of industrial fluid automation, specializing in the introduction and integration of high-end valves and instruments. We are committed to providing customers with safe, reliable, and intelligent system solutions. By leveraging global leading product resources and supported by systematic professional training and on-site technical assistance from Emerson’s experienced engineers, we ensure that customers can respond promptly and accurately to technical challenges.

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