Low-friction, no stick-slip external swivel seal for medium to high pressure

R67


Low-friction, no stick-slip external swivel seal for medium to high pressure

Composite seal for sealing the bore of swivel joints and rotary couplings.

The design is an O-ring energizing a wear-resistant PTFE/Teflon® cap.  The cap has oil grooves on the outer diameter to provide lubrication, while the contoured inside diameter of the cap fits with the O-ring to prevent spinning between the cap and the O-ring.  It is used for pressure up to 5000*psi.  The seal can operate under very high PV for short operating cycles.  Small quantities are available in 1 to 3 days.

 




Operating Range
MaterialMax.PressureTemperatureSurface SpeedApplicationDry-runPV-Rating
Permachem 62335,000psi (350bar)-58 to 400°F (-50 to 200°C)Up to 400 fpm (2m/s)standard oil lubrication, high waterbased fluidsYES9
Permachem 62355,000psi (350bar)-58 to 400°F (-50 to 200°C)Up to 400 fpm (2m/s)Soft shaft material, gaseous media, FDA compliantYES9
Duraloy 47365,000psi (350bar)-58 to 400°F (-50 to 200°C)Up to 400 fpm (2m/s)low wear and abrasion, long service lifeYES9
Size Table (Inch)Standard Sizes listed below are preferred sizes for new design applications; however, we offer any other seal size as required. Seals are available for any bore diameter size in 0.001 inch increments, including Functional Range without tooling charges.
A
Bore Diameter
CS
Cross-section
D
Groove
Diameter
B
Piston
Diameter
Tolerance
L
C
R1
R
Standard Range
Functional Range
Tolerance
**D=
B=
D, B
Tol.+0.008/-0
min.
max.
max.
0.250-1.549"
0.250 - 5.300"
+0.0015/-0
0.096
A - 0.193
A - 0.002
+0/-0.0015
0.087
0.040
0.015
0.005
1.550 - 3.149"
0.550 - 9.750"
+0.002/-0
0.148
A - 0.295
A - 0.003
+0/-0.002
0.126
0.060
0.020
0.005
3.150 - 5.249"
1.000 - 18.000"
+0.003/-0
0.217
A - 0.433
A - 0.004
+0/-0.003
0.165
0.080
0.040
0.005
5.250 - 12.999"
1.800 - 26.500"
+0.004/-0
0.305
A - 0.610
A - 0.005
+0/-0.004
0.248
0.090
0.050
0.005
13.000 - 25.999"
5.250 - 27.000"
+0.005/-0
0.413
A - 0.826
A - 0.006
+0/-0.005
0.319
0.130
0.070
0.005
26.000 - 40.999"
20.000 - 63.000"
+0.006/-0
0.551
A - 1.102
A - 0.008
+0/-0.006
0.375
0.150
0.100
0.005
41.000 - 63.000"
consult AHPSeals engineering
**Standard cross-sections (CS) listed and non-standard sizes can be provided for all shaft size up to 63 inches.** For heavy-duty applications that include frequent pressure spikes, vibrations and thermocycling, it is recommended to move up one size in the CS.Surface finish: Shaft (A) plunge ground, zero lead, Ra 8-16µin using elastomer seals, Ra 6-12µin using PTFE seals. Housing (D,L) Ra 32-63µin, shaft material hardness 55-65RC. See Technical Info for more specific information.

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