Overview

• Low friction

• Bubble tight seal

• V type sealing

• Self-lubrication

Design & Manufacture: API 599, API 6D
Face to Face: ASME B16.10, DIN 3202
Connection End: ASME B16.5, EN 1092, EN 12627, JIS B2220
Test: API 598, API 6D,DIN3230

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.