Purge Meters are low-capacity variable area meters that incorporate several improvements in basic design. They feature an unusually rigid, corrosion resistant stainless steel frame and a positive, easily controlled tube lock.
Purge Meters are specifically designed for such service as the purging instrument cases and control lines. They are readily adapted to liquid-level indication, sampling, liquid-specific gravity determination, and similar applications.
Features
Structurally Strong Frame
The side frames are heavy, channel-form stainless steel sections welded to stainless end fittings turned from bar stock. This produces a rigid until that resists pipe strains and protects tube alignment.
Choice of Corrosion Resistant Materials
The frame is made of 304 stainless steel and the end fittings are made of
316 stainless steel. The metering tube retainer is Krynar® vinylidene
fluoride resin. O-rings come in a choice of Buna N or Viton® with Kalrez®
and EPR (ethylene propylene rubber) optional. Valve trim (seat and stem)
is 316 stainless.
Positive Tube Lock and a Tube Shield
A knurled tube-locking nut, extreme to the flow, positions the tube
retainer and locks the tube firmly in place. Tube removal is quick and
easy. O-rings seal the tube at both ends. A clear plastic shield covers
the tube.
Integral Backcheck
An anti-backflow device is built into the discharge. It consists of a 316
stainless steel poppet with the selected O-ring seal.
High Interchangeability
All parts, except tubes, frames, and plastic shields are interchangeable
regardless of scale length. Tubes have same size O-rings at each
end. The tubes for all capacities fit one frame size. This and the
one-piece frame make for design simplicity with simplified
maintenance and spare parts stocking.
510.100.000.PS.0324
Click the link below to access a PDF of the data sheet.