NAF Naval ball valve 40

Design
The valve body, end pieces and valve neck are welded
together to form a single unit and the blow-out proof stem
is sealed by means of two FPM O-rings, the upper one of
which is replaceable (both in DN65-DN250).
The PTFE thrust washer between the stem shoulder and
valve neck prevents jamming and protects the stem seal
from the media. Bevel spring washers keep the seal pressed against the ball to ensure that the valve remains leaktight regardless of pressure fluctuations.
Applications
NAF-Navalball in carbon steel are suitable for district
heating (CHP) installations, heat transfer piping, oil lines,
oxygen-free water lines and other liquids and gases which
do not attack the valve.
Connections
The valve can be made with different ends, butt welded,
female threads, flange ends and a combination between
butt-welded / female thread ends