General Information: |
The
resilient and compliant quality of these seam-free, synthetic
rubber balls offers a number of advantages in non-return valve
applications. Being relatively soft they provide a good seal
at low pressures and eliminate the need for highly accurate
seatings which are often costly to produce. Also they dampen
vibration, are quiet in operation and extend valve life. |
Basic Composition: |
Copolymer of vinylidene fluoride and hexafluoropropylene |
Mechanical Properties: |
|
Hardness (Durometer) |
80 ± 4 Shore 'A' |
Density |
0.069 lbs/cub.in. |
Specific Gravity |
1.90 |
Service Temperature |
-29 Deg.C to 219 Deg C (-20 Deg.F to 425 Deg F) |
Colour |
Black |
Size Range: |
|
Stock Sizes |
1/8", 3/16", 1/4", 5/16", 3/8" and 1/2" |
Tolerances: |
|
Basic Dia.Tolerance |
±.003" |
Sphericity |
.003" |
Surface Finish |
Smooth & seam-free |
Corrosion Resistance: |
Viton
is inert to nearly all acids and alkalies. It has excellent
resistance to commercial fuels, lubricants, alphatic and aromatic
hydrocarbons, water, steam and weathering. It is not recommended
for use with esters, ketones, acetates and amines. |