Glens Falls, NY – July 22, 2026 – Flomatic® Valves is proud to announce the official release of the new Sewair‑Combo® NXC, a Next Generation Compact (NXC) combination air valve engineered to provide reliable air release, vacuum protection, and continuous air management in municipal and industrial wastewater systems. Designed in accordance with AWWA C512, the Sewair‑Combo® NXC helps utilities improve hydraulic efficiency while protecting critical pipeline infrastructure from damaging air-related conditions.
Effective air management is essential to the performance and longevity of wastewater collection systems and force mains. Entrapped air can restrict flow, increase pumping costs, contribute to surge conditions, and accelerate wear on system components, while vacuum conditions can place pipelines at risk of collapse and column separation. Ideally suited for wastewater force mains with changing slopes and critical high points where air pockets commonly accumulate, the Sewair‑Combo® NXC provides a reliable solution for maintaining system efficiency, improving operational reliability, and safeguarding valuable infrastructure assets.
The Sewair‑Combo® NXC combines three essential functions into a single compact, full-bore solution:
-
-
- Automatically releasing large volumes of air during pipeline filling
- Admits air during pipeline draining or sudden flow interruptions to prevent vacuum conditions
- Continuously releases entrapped air while the system remains under pressure
-
Engineered specifically for demanding wastewater service, the Sewair‑Combo® NXC features a powder fusion-bonded epoxy coated ductile iron body, 316 stainless steel float, and stainless-steel internal components that provide superior corrosion resistance in aggressive sewage environments. Its innovative sloped, funnel-shaped lower body helps minimize the accumulation of grease and debris, supporting dependable operation and reducing maintenance requirements. Designed with serviceability in mind, the valve incorporates two cleanout and drain ports that simplify inspection, draining, testing, and backflushing procedures. Available in a 2-inch NPT configuration and rated for operating pressures from 3 PSI to 230 PSI, the Sewair‑Combo® NXC delivers dependable, low-maintenance air management and infrastructure protection across a wide range of municipal and industrial wastewater applications.
Key Features & Benefits
-
-
- 3-function design for air release, vacuum protection, and continuous air management
- Designed in accordance with AWWA C512
- 2-inch NPT connection
- Powder fusion-bonded epoxy coated ductile iron construction
- 316 stainless steel float and stainless steel internals
- Sloped lower body design minimizes debris and grease accumulation
- Two cleanout/drain ports for easy maintenance, testing, and backflushing
- Operating pressures from 3 PSI to 230 PSI
- Temperature rating up to 140°F (60°C)
-
As utilities continue modernizing infrastructure and improving system resilience, Flomatic’s Next Generation Sewair‑Combo® NXC provides a durable, standards-compliant solution that helps reduce maintenance concerns, improve hydraulic performance, and protect wastewater systems from air-related operational challenges. Backed by decades of valve engineering expertise, the Sewair‑Combo® NXC delivers the reliable performance wastewater professionals need to keep their systems operating efficiently and safely.
To learn more about the Sewair‑Combo® NXC, visit: https://www.flomatic.com/valves/air-release-vacuum-valves/sewage/sewair-combo-nxc/ or contact Flomatic Valves at 518-761-9797.
DOWNLOAD PRESS RELEASE (WORD FORMAT)
DOWNLOAD SEWAIR-COMBO® NXC IMAGE ASSET
