26-inch Concentric Butterfly Valve

NSV 26-inch Concentric Butterfly Valve

This concentric (centerline) butterfly valve features a 26-inch (DN650) body, designed for low-pressure on-off and flow regulation applications. The valve disc is centered on the bore, with the stem axis aligned with both the disc centerline and the pipe centerline, offering a simple, lightweight, and cost-effective solution for large-diameter piping. The resilient seat provides bubble-tight sealing while the streamlined disc minimizes flow resistance.

Key Features

26-inch Size: DN650 nominal diameter, suitable for large-scale industrial and municipal pipelines.

Concentric Design: Disc and stem are centered on the valve bore, enabling low operating torque and simple construction .

Resilient Seating: EPDM, NBR, or PTFE soft seats provide bidirectional zero-leakage shutoff .

Compact & Lightweight: Wafer or lug connection offers short face-to-face dimensions, saving installation space and reducing pipe load .

Wide Material Options: Body in ductile iron, carbon steel (WCB), or stainless steel; disc available in stainless steel, aluminum bronze, or coated ductile iron .

Versatile Operation: Manual lever, gear operator, electric, pneumatic, or electro-hydraulic actuation available .

Typical Applications

Widely used in municipal water supply and distribution, wastewater treatment plants, cooling water circuits, HVAC systems, and industrial process lines handling water, air, and mild corrosive fluids.

FAQ

1.Q: What’s the brand of your company can supply ?

A:NSV or OEM service.

2.Q:How can I get your company catalog?

A: For your reference, basic catalogue is same as "Download>E-Catalog” of homepage. If you need printed material or request more specific data like PQ material, please contact sales team.

3.Q:How can I visit your company?

A: We always welcome you to factory. However, your visit intention shall be pure. You can visit factory conveniently by noticing your visit to the department in charge depending on your visit purpose in advance. For the way to factory, please refer to map“About Us” of homepage.