Trunnball

The Flowserve NAF-Trunnball design provides excellent control performance and tightness in both directions, even at high differential pressures.
DN150-800 (6”-32”)
PN10-40 (ANSI Class 150, 300)

NAF-Trunnball is an excellent solution where media and extreme pressure conditions make severe demands on design, material and performance. Equipped with NAF´s unique pre-load self adjustable double stem packing.
The trunnion mounted ball design provides excellent control performance and tightness in both directions, even at high differential pressures. Service-friendly due to the off-center body split and modular design.
NAF-Trunnball is an integrated part in the NAF control valve package with a unique direct mounting concept.