Hose
A
Tubing
B
Coiled Air Hose
&
Fittings
C
Transportation
D
Fittings
E
Tooling, Equipment
&
Accessories
F
Parker Hannifin Corporation
| Parflex
®
Division | Ravenna, Ohio
|
parker.com/pfd
For detailed ordering information, please consult price list or contact Parflex
®
Division.
General Technical
G
G-49
Polymer
Abbreviated
Name
Parker
Compound
No.
Color
SAE
J515
Type
Hard-
ness
Shore
“
A”
7
Temperature
Range
Recommended For
Not Recommended For
Nitrile-Butadiene
NBR
N0552
B
CH
2
90
6
-30
° to 250°F Petroleum base oils and
fluids, mineral oils, ethylene
glycol base fluids, silicone
and di-ester base lubricants,
air, water under 150°F, and
natural gas. Hydrogen fuel
cells. Meets FDA requirements
for food products.
CNG Applications.
Phosphate ester base
hydraulic fluids, auto-
motive brake fluids,
strong acids, ozone,
freons, ketones, halo-
genated hydrocarbons,
and methanol.
N0674
-
70 -30
° to 250°F
N0103
-
70 -65
° to 225°F
Nitrile-Butadiene
(
Low compression set –
N1059)
N1059
CH
2
90 -30
° to 275°F
Nitrile-Butadiene
N0507
-
90 -65
° to 180°F
N0304
-
75 -65
° to 225°F
N0508
-
75 -35
° to 250°F
N0756
-
75
6
-65
° to 275°F
Ethylene-Propylene
EPDM
E0540
B
CA
3
80
-65
° to 275° F
Phosphate ester base
hydraulic fluids, hot water,
steam to 400°F, silicone oils and
greases, dilute acids and alkalis,
ketones, alcohols and automo-
tive brake fluids. CO
2
climate
control systems.
Petroleum base oils
and di-ester base
lubricants.
E0893
P
1
CA
3
80
E0962
B
-
90
Neoprene
CR
C0873
B
-
70
-45
° to 250° F
Refrigerants (freons, ammonia),
high aniline point petroleum oils,
mild acids and silicate ester
lubricants.
Phosphate ester fluids and
ketones.
C0944
R
1
-
70
Fluorocarbon
FKM
5
or FPM
V0747
B
-
75
-15
° to 400° F
Petroleum base oils and fluids,
some phosphate ester base
fluids, silicone and silicate ester
base lubricants, di-ester base
lubricants, acids and haloge-
nated hydrocarbons.
Ketones, skydrol fluids,
amines (VDMH), anhydrous
ammonia, low molecular
weight esters and ethers,
and hot hydrofluoric or
chlorosulfonic acids.
V0884
BR
1
-
75
V0894
BR
1
HK
4
90
6
Silicone
Si
S0604
RU
1
-
70 -65
° to 450° F Dry heat (air to 400°F) and high
aniline point oils.
Most petroleum fluids,
ketones, water and steam.
O-Ring Material Selection
Standard O-rings supplied with Parker tube fittings and adapt-
ers are 90 durometer hard nitrile (Buna-N) Parker compound
#
N0552. These O-rings are well suited for most industrial
hydraulic and pneumatic systems. They have high extrusion
resistance making them suitable for very high pressure static
applications. Optional high temperature fluorocarbon, Parker
compound #V0894, is also available for higher temperature
specifications.
O-rings for other than normal hydraulic media or higher
temperature applications can be selected from the following
chart. The chart should be used only as a general guide.
Before making final selection for a given application, it is rec-
ommended that appropriate tests be conducted to assure
compatibility with the fluid, temperature, pressure and other
environmental conditions.
For fluids not shown in the chart, please contact the Tube
Fittings Division.
Table U-6 – O-Ring Selection
*
Color Code: B – Black, P – Purple, R – Red, BR – Brown, RU – Rust
Notes:
1.
These Parker “Chromassure” color assurance O-rings are available from the Parker Hannifin O-Ring Division.
They help eliminate assembly errors, reduce warranty costs and liability risks, and assure safety in aftermarket business.
2.
Formerly SAE Type I.
3.
Formerly SAE Type II.
4.
Formerly SAE Type III.
5. “
FKM” is the ASTM designation for fluorocarbon. Its ISO designation is “FPM”.
6.
Standard compounds available from stock.
7.
Use 90 durometer hard O-rings for applications with 1500 PSI or higher pressures.