VACUUM/PRESSURE FEEDTHROUGHS
HERMETIC FACE SEAL
PFTFS-8 Series
Maximum Plate
Thickness with Jam
Nut 7 mm (0.27")
PFTFS-8K
shown larger
than actual size.
PFTFS-8K
shown smaller
than actual size.
U 2000 psi (138 bar)
Pressure Rating
-8
U 10
torr Vacuum Rating
U Copper and
Thermocouple Wire
U 8 Wire Pairs for
8 Thermocouples
U PTFE Insulated Wire
U Nitrile O-Ring and Jam Nut
U Each Unit Tested
for Reliability
SPECIFICATIONS
Note: The face seal is the high pressure
side, and the thread or jam nut is the low
pressure side.
Material: 300 SS; nitrile O-ring
Maximum Pressure: 2000 psi (138 bar)
Leak Rates, Pressure: 1 x 10
at 2000 psi; 1 x 10-7 cc air/s at 29 inHg
vacuum
Vacuum Limit: 1 x 10
Leak Rates, Vacuum: 1 x 10
at 15 psi; 1 x 10-8 cc He/s at 10-8 torr
Temperature Limits: -40 to 120°C
(-40 to 250°F)
Out Gassing: <0.003% VCM; <0.34%
weight loss; sample at 125°C, surface
at 25°C
Wire: 20 AWG solid with PTFE
insulation; 48 inL, -200 to 200°C rating
O-Ring: 2-121
-8
torr
-6
cc air/s
-8
cc He/s
HEX
THREAD
CHEMICAL
EXPOSURE
Compatible: Oils,
solvents, refrigerants,
water, non-corrosive
gases.
Avoid: Strong acids
and bases
Dimensions: mm (inch)
ACROSS LENGTH ACROSS THICKNESS
FLATS O-RING OF FLATS JAM OF
THREAD ON HEX FACE R LENGTH THREAD NUT HEX
(1.50) (1.49) (1.40) (0.75) (1.38) (0.41)
11⁄16-12 38.10 37.85 35.56 19.05 35.05 10.41
LOW
PRESSURE
To Order Visit omega.com/pftfs for Pricing and Details
MODEL NO. WIRE NO. OF PAIRS
PFTFS-8CU Cu 8
PFTFS-8E E-Thermocouple 8
PFTFS-8J J-Thermocouple 8
PFTFS-8K K-Thermocouple 8
PFTFS-8T T-Thermocouple 8
Comes complete with operator’s manual.
Ordering Examples: PFTFS-8CU, hermetic feedthrough, face seal design, for 8 cu wire.
PFTFS-8K, hermetic feedthrough, face seal design, for 8 Type K thermocouples.
C-24
R
LENGTH
HEX
HIGH
PRESSURE
JAM NUT
ACCESSORIES
C