Overview

NSEN Weld type Triple offset butterfly valve could provide both laminated sealing and fully metal sealing. Forged body is to be applied for this series, it could avoid internal looseness that cannot be seen during the casting process and the defects of body strength and axial force by plate welding process. NDE inspection will be done if requested by clients, we could provide the service to arrange it.

• Laminated sealing & Metal sealing

• Low opening torque

•  Zero leakage

• Blow out proof shaft

•  Friction free between seat and disc sealing

•  Tilted cone sealing face

NSEN strictly follow the free repair, free replacement and free return services within 18 months after the valve is ex-works or 12 months after being installed and used on the pipeline after ex-works (upon which comes first). 

In the case the valve gets failed due to the quality problem during the use in the pipeline within the quality warranty period, NSEN will provide free quality warranty service. The service shall not be ended until the failure is surely made settled and the valve normally workable as well as the client signs the letter of confirmation.

After expiration of the said period, NSEN guarantees to provide the users with on-time quality technical services whenever the product needs to be repaired and maintained.