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PFTFS
Vacuum & Pressure Plate Feedthroughs for Sealing Wire & Cable
Models In Stock
- 2000 psi Pressure Rating
- 10-8 Torr Vacuum Rating
- Copper and Thermocouple Wire
- 8 Wire Pairs for 8 Thermocouples
PFTFS
From
TWD
40,439
Models In Stock
Product Overview
- Across Flats Jam NUT HEX 35.05 mm
- Fitting Model Plate
- Housing Flats 38.1 mm
- JAM NUT Thickness 10.41 mm
- Leak Rate Under Pressure 1 x 10⁻⁶ cc air/s at 2000 psi
- Leak Rate Under Vacuum less than 10^⁻⁸ cc He/s
- Length 35.56 mm
- Materials Stainless Steel, NBR
- Number of Wires 8
- O-Ring Face R 37.85 mm
- O-Ring, Max 121 mm
- O-Ring, Min 2 mm
- Out Gassing <0.003% VCM
- Out Gassing Note <0.003% VCM; <0.34% weight loss; sample at 125°C, cold surface at 25°C
- Measurement Pressure, Max 2000 psi
- Process Connection Size 1 1/16 in
- Process Connection Type UNF Male
- Process Temperature, Max 120 °C
- Process Temperature, Min -40 °C
- Series ID PFTFS
- Thread Length 19.05 mm
- Vacuum Rating 1 x 10^-8 torr
- Wire Gauge 20 AWG
Supported Applications
The Omega PFT Series Vacuum and Pressure Feedthroughs are pre-assembled hermetic units designed to penetrate pressure barriers, vacuum chambers, or bulkheads with electrical conductors while maintaining a tight seal. These feedthroughs eliminate the need to fasten wires to conventional connectors or solder glass-to-metal seals. The series is engineered for high-pressure and high-vacuum applications where reliable sealing of thermocouples or copper wire pairs is required.
Operating Conditions & Performance
The PFTFS Series features a hermetic face seal design with specific performance limits documented in the specification tables. The operating temperature range for the process is -40 to 120°C (-40 to 250°F). Pressure ratings are defined by orientation: the face seal serves as the high-pressure side, while the thread or jam nut represents the low-pressure side.
Key performance specifications include:
- Maximum Pressure: 2000 psi (138 bar)
- Vacuum Limit: 1 x 10⁻⁸ torr
- Leak Rates, Pressure: 1 x 10⁻⁶ cc air/s at 2000 psi; 1 x 10⁻⁷ cc air/s at 29 inHg vacuum
- Leak Rates, Vacuum: 1 x 10⁻⁸ cc He/s at 15 psi; 1 x 10⁻⁸ cc He/s at 10⁻⁸ torr
- Out Gassing: <0.003% VCM (Volatile Condensable Materials); <0.34% weight loss (sampled at 125°C, surface at 25°C)
The series is compatible with oils, solvents, refrigerants, water, and non-corrosive gases. Strong acids and bases should be avoided.
Configuration Options
The PFTFS Series supports 8 wire pairs configured for either copper (Cu) or thermocouple types J, E, T, and K. The electrical connection utilizes 20 AWG solid wire with PTFE insulation, rated from -200 to 200°C, with a length of 48 inches on both sides.
Construction materials for the face seal variant include:
- Housing Material: 300 SS (Stainless Steel)
- O-Ring: Nitrile O-ring
- Wire Insulation: PTFE insulation
The series is available with a hermetic face seal connection featuring a jam nut. The thread specification for the PFTFS model is 1/16-12.
Key Product Differences
Differentiation within the broader Omega feedthrough family includes distinct mechanical configurations and pressure ratings:
- PFTFS Series (Face Seal): Designed for high-pressure applications up to 2000 psi. Features a stainless steel housing, nitrile O-ring seal, and supports 8 wire pairs.
- PFT2NPT & PFT2CPL Series: Utilize NPT plugs or couples with brass housings (or epoxy resin bodies in some configurations) and are rated for a maximum pressure of 120 PSI. These variants support 1, 2, or 4 wire pairs.
- PFTCC Series: Multi-pin connectors featuring stainless steel housing designed for different pin counts and materials (e.g., PFTCC-12U).
The PFTFS model specifically distinguishes itself with the face seal design, higher pressure rating of 2000 psi compared to the NPT variants, and a fixed configuration of 8 wire pairs.
