Overview

Trunnion mounted ball valves are designed for upstream sealing. The seat design has a built-in automatic cavity relief mechanism. Valves are provided with vent and drain connections for venting/draining of the valve cavity. Vent and drain connections can also be used for on-line affirmation of valve sealing.

• Fire Safe to API 607

• Anti-static Design

• Anti-blowout Stem

• Trunnion Mounted Ball

• Floating Spring Loaded Seat

• Double Block and Bleed (DBB) Design

• Split Body, End Entry

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.