NW Series

Sanitation line: butterfly valve

Our NW series of butterfly valves is characterized by a wafer-style body following the AWWA construction standard. The series combines years of experience and research, that results in longer service life, excellent performance, easy maintenance and interchangeability of components.

Eccentric disc.
Seat sealing.
Monobloc body.
Disc configuration to minimise pressure drop.

Benefits of NW Series

Body- The wafer-style one-piece body is designed in order to ensure maximum security and reliability (proven by finite element analysis). It has an extended valve neck enabling pipework isolation.
Disc- The disc configuration minimises pressure drop in totally open position. The entire perimeter of the sealing area is polished to provide providing total sealing in relation to the seat, ensuring low operating torque and less wear of the seal.
Shaft- The upper shaft transmits the rotation movement to disc by means of a torque plug, ensuring the product performance and safety. The interface dimensions in accordance with ISO 5211.
Replaceable seat- The replaceable seat completely covers the body and consists of a rigid ring, on which the elastomer seat material is vulcanized preventing deformation, reducing actuation torque and increasing seat service life.
Bushing- Bronze bushing eliminates friction between shaft and body providing torque reduction.
Actuation- The body design and top flange allows the coupling of manual, pneumatic or electric actuation which will comply with ISO 5211.
Finite analysis- Project developed with the aid of software for finite elements analysis ensuring greater structural reliability to the design.

Product Specifications

NW Series
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NW Series

Sanitation line: butterfly valve

Benefits of NW Series

Product Specifications

NW Series

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