TPi July 2008

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f i t t ingsfeature on . . .
34 Tube Products International July 2008
Parker Instrumentation has launched
ball and needle instrumentation valves
optimised for high-pressure fluid
control applications operating at up to
20,000 psi/1379 bar.
Available configured with Parker’s high-
pressure Phastite® tube connector
ends, the valves offer exceptional
integrity to meet the higher pressure
hydraulic control and other demanding
instrumentation applications that are
increasingly being faced in the offshore
oil and gas sector.
The new ball and needle valves – 20K
Hi-Pro Ball Valve and 20K H-Series
Needle Valve – are fabricated from 316
stainless steel as standard, and offered
in NACE (corrosion) compliant and HCT
(heat code traceable) versions. Available
with 1/ 4", 3/8 " or 9/ 16", or 6, 8, 10 and
12mm tube connections, the valves’
6mm bore sizes provide maximum flow
rates (Cv) of 0.66 for the needle version,
and 1.56 for the ball valve.
body and one insert), rather than a
conventional three-piece approach
(body and two inserts). This eliminates
a potential leak path.
The two-piece design simplifies valve
installation, as it minimises the risk
of damage from over-tightening when
20,000 psi ball and needle instrumentation valves
for high-pressure applications
The 20K Hi-Pro Ball Valve
uses a novel two-piece
construction, reducing
potential leak paths. It is
fully bidirectional and is
actuated by a 90º turn
for fast on/off action, with
stops for positive user
feedback.
An integral gland adjuster
is secured by means of
Parker’s proprietary Tru-
Loc® mechanism. The
valve mechanism works
on the floating ball
principle, and offers 100%
bubble tight operation.
PEEK (polyetherketone) seat material
is used to allow operation over a wide
temperature range from -20ºC to +200ºC
(-4ºF to +392ºF).
A novel design of seat allows the 20K
Hi-Pro Ball Valve to be manufactured
from just two body pieces (the main
Photo – Saint Gobain Pipelines
see page 36
Parker Instrumentation’s new ball and needle S S
instrumentation valves are optimised for high-pressure
fluid control applications
Fi t t ings