Who we are
Erstwhile Schrader Duncan Ltd, Duncan Engineering Limited is one of India’s pioneers in Industrial Pneumatics, Valves, Actuators, Valve Automation Systems, and Accessories. A part of the AG Ventures (https://agventures.co.in), and with a legacy spanning over six decades, we have built a strong reputation as a trusted partner to Indian industry—serving OEM and aftermarket segments nationwide through an extensive network of sales offices and channel partners.
We offer a comprehensive portfolio ranging from standard catalogue products to bespoke engineered solutions tailored for demanding applications. Our state-of-the-art, environment-friendly manufacturing facility and dust-free, temperature-controlled assembly plant at Ranjangaon, Pune, position us at the forefront of industrial innovation, precision, and quality.
Our Certifications
Proven Expertise. Trusted Performance. Scalable Solutions.
Why Duncan Engineering?
60+ Years of Engineering Excellence
Backed by over six decades of industry experience, we bring deep expertise in industrial pneumatics, valves, actuators, and automation systems, delivering solutions that stand the test of time.
Growth-Driven, Future-Focused
We are committed to sustainable growth through innovation, customer-centricity, and operational excellence, continuously evolving to meet next-generation industrial demands.
Preferred Partner for Critical Applications
Recognized as a trusted brand for actuators and valve automation systems, we deliver reliable, high-performance solutions for mission-critical industrial operations.
Wide Industry Acceptance
Our products are widely adopted across industries for their robust design, ease of maintenance, and suitability for Indian and global operating conditions.
Leadership in Core Sectors
A strong presence in Power, Metals, Infrastructure, and Process Industries, with solutions engineered to perform in demanding and high-stress environments.
Extensive Distribution & Service Network
A robust pan-India sales and service network ensures faster response times, seamless delivery, and dependable aftermarket support.
Product Range
Explore our wide range of products

Elevate your industrial automation with custom control panels and precision positioner cylinders designed to meet your unique needs.

Optimize and maintain fluid systems with washers, caps, and cores. Find quality solutions at Duncan Engineering

We offer a comprehensive range of high-performance industrial valves engineered to meet diverse application requirements across process industries.
Our Clients
Industries We Serve
From Design to Lifecycle Support
How We Deliver Value?
Product Engineering & Solutions
A comprehensive portfolio of pneumatic systems, valves, actuators, and valve automation solutions—designed for performance, precision, and long-term reliability.
Customization & Application Expertise
We specialize in tailor-made solutions based on specific process requirements, ensuring optimal efficiency and seamless integration into your systems.
Aftersales & Lifecycle Support
Strong focus on spares, service, and maintenance, ensuring higher uptime, extended product life, and reduced operational costs.


































