Parker Hannifin Corporation
Fluid System Connectors
Otsego, Michigan
K44
Catalog 3501E
Parker Metric Ball Valve
Series MBVG
Materials of Construction
Valve Body:
Brass Chromium Plated
Ball:
Brass Chrome plated
Seats/Seals:
PTFE
Stem Seal:
Fluorocarbon
Handle:
Polyamide
Operating pressures and temperatures
30
20
Pressure (bar)
Temperature (°C)
10
150
125
50 100
25
0
175 200 225
0
1/4"
to 3/8"
1/2"
N.B. This chart gives general
information. Only testing un-
der operating conditions will
finally determine which valve
should be selected.
Advantages
Design of the body
The valve is manufactured from a solid section
which incorporates the stem housing in the
body. This design allows excellent guidance of
the stem, which increases its lifespan.
Stem tightness
A Fluorocarbon O-Ring assembled under
compression automatically compensates for
minute friction wear. Thus a high standard of
seal is attained.
Tightness of the seals
The perfect tightness of the seals on the
casing is obtained by the preset force of the
nut, adjusted during assembly.