Low Pressure 90˚ Register Saddles & UFO Heads

Advanced HVAC Manufacturing Solutions for Low-Pressure Ventilation System Design

At Spiral Manufacturing Co., Inc., we specialize in precision-engineered HVAC ductwork solutions, built to support the efficiency and performance demands of modern low-pressure air distribution systems. Besides its expertise in spiral duct production, it also offers a full line of fittings and specialty items, including low-pressure register saddles, spiral pipe, and fittings. With a strong commitment to accuracy, durability, and customer satisfaction, we provide contractors, engineers, and system designers with the dependable products they need to build effective, energy-conserving ventilation systems.

Accurately Manufactured Parts Ensuring Smooth Air Distribution

Consistency of airflow and strength are important in air distribution systems. Our low-pressure register saddles are designed to offer secure, leak-free connections from the main spiral duct to register outlets. Constructed of galvanized steel, these saddles offer long-lasting performance in industrial and commercial installations. The curved base is an exact match for the spiral duct, forming a snug fit and consistent air delivery to all supply points. In addition to register saddles, our low-pressure spiral pipe is built to strict specifications of uniform roundness, clean seams, and smooth interior surfaces. These play a critical role in reducing pressure loss and maintaining system balance. Whether for construction or system retrofitting, our spiral pipe delivers the reliability and ease of installation that professionals trust.

Custom Air System Parts for Optimized Functionality

Every ventilation system requires components that fit together seamlessly to ensure peak performance. That’s why we offer a full range of low-pressure fittings, tailored to meet varied project requirements. From elbows and reducers to transitions and laterals, our fittings support optimal air handling while minimizing turbulence and resistance throughout the ductwork. Each part is built with precision, allowing for quick alignment and secure connections. Our fittings are compatible with all standard sizes and are available with custom modifications for specialized layouts. This flexibility is essential for contractors managing complex mechanical systems, helping save time and ensure quality during every phase of installation.

Built for Durability and Seamless Integration

One of the core benefits of our low-pressure components is their robust construction. Our register saddles and fittings are formed from heavy-duty materials to resist damage during handling and maintain structural integrity in long-term service. Combined with the easy adaptability of spiral duct systems, these products reduce field labor and support faster, cleaner installations.

These solutions are widely used in:

Our customers benefit from:

• High-strength galvanized steel construction
• Leak-resistant seams and fittings
• Compatibility with standard spiral duct configurations
• Product customization options are available upon request
• Made-in-USA quality assurance

Our engineering and production teams work in close coordination to ensure consistency, dimensional accuracy, and reliable performance across all components. When air distribution systems demand exacting standards, our manufacturing capabilities deliver results you can depend on.

Quality Components and Personalized Support You Can Count On

At Spiral Manufacturing Co., Inc., we have built a reputation for superior craftsmanship, consistent performance, and responsive customer service. We offer a full range of solutions—whether you need low-pressure register saddles, spiral pipe, or custom-engineered fittings—designed to meet your system requirements with accuracy, durability, and seamless integration.

Contact us today to explore our complete product line or speak with one of our experts about your specific project needs.