Page 311 - ParkerBrassCatalog2010

Parker Hannifn Corporation
Parker Brass Products Division
Otsego, Michigan
K25
K
90° Ball Valves Series 590/591
Advantages
Parker’s forged body valve provides extended service life and resists
failure caused by severe temperature applications. Optimum fow
design assures maximum system effciency. Highly inert PTFE seats
and seals provide resistance to chemical corrosion. Parker also
provides a blow-out proof stem and chrome plated brass ball on
all series 590/591 valves. Parker’s 590/591 series valve bodies are
machined from high quality CA377 forgings.
Applications
Parker’s industrial ball valve product line is intended for general
purpose use. Please be aware that ball valves are intended for use in
the fully open or closed positions. Depending on application conditions,
throttling of the valve may result in premature seal failure and/or
inability to turn the valve handle.
For use as fuel line shutoffs for gasoline and diesel powered over the
highway, off highway and construction equipment vehicles.Water and
air service lines on capital equipment and plant design plumbing that
require total shut-off capability.
Working Pressure and Temperature
Saturated steam service up to 150 PSI and 400° F
Vacuum, 29 Inches of Mercury
elytS epyT lairetaM eziS snoitpO
V 095 P 8- 00-
elytS evlaV-V
epyT 09-095 elameF/elaM
09-195 elaM/elaM
lairetaM ssarB-P
eziS
"4/1-4
"8/3-6
"2/1-8
snoitpO eldnaHreveL-40
revoCeldnaHlyniVwolleydekramnU-80
Operating Instructions
Quarter turn is “on” or “off”.
(Provides positive stop action for full shut-off.)
Note: Periodically check the adjustable packing nut
and tighten as required.
250
0 -50 100 150 200 250 350
200
100
50
0
TeMPeRATURe (°F)
PReSSURe (PSI)
1/4"–1/2"
Note: 90° Ball Valve Series 590/591 has a tee handle as standard.
A Lever Handle is available as option 04.