Demco Series NE-I Lug Butterfly Valve: Compact and Versatile

The Demco Series NE-I Butterfly Valve is a short-neck, resilient-seated lug valve engineered for excellent performance and reliability across a diverse range of industrial and commercial applications. Its compact design and robust construction make it an ideal choice where space efficiency and reliable shut-off are essential.

Key Features and Advantages

Compact Short-Neck Design: The shorter neck provides a streamlined profile, making it suitable for installations with space constraints while ensuring easy access for actuation.
Broad Application Suitability: Ideal for a wide variety of process flowlines, utilities, and general service in industries such as food and beverage, chemical processing, and water treatment.
Resilient Seating: Ensures a positive, drop-tight seal for reliable flow isolation.
Installation Versatility: Designed specifically for installation between common flange standards: ASME Class 125 and ASME Class 150 flanges.

Technical Specifications

Parameter	Detail
Series	NE-I
Body Style	Lug(also available in Wafer)
Sizes	$2''$ to $12''$ ( $50\,\text{mm}$ to $300\,\text{mm}$ )
Nominal Pressure	ASME Class 125 / ASME Class 150
Body Material	Variety of materials (e.g., Ductile Iron, Carbon Steel, Stainless Steel, Aluminum Bronze)
Seating Material	Resilient Elastomers (e.g., Buna-N, EPDM, Viton)
Actuation	Bare Stem, Handle, or Gear Operator (Actuators sold separately)

Ideal Applications

The Demco NE-I valve’s versatility makes it a perfect fit for:

Food and Beverage: Clean and general service lines requiring sanitary or specific elastomer seats.
Utilities: HVAC, cooling water systems, and general plant water services.
Process Flowlines: Isolation and throttling services where dependable shut-off is needed for liquids and gases.

Do you require the NE-I in a specific body material or elastomer seat for your application?