Need a quote or advice?

Contact one of our experienced engineers

Phone Icon 877 244 1777
UK Flag United Kingdom Australia Flag Australia France Flag France Germany Flag Germany Spain Flag Spain Netherlands Flag Netherlands Italy Flag Italy Hungary Flag Hungary
Call TC
TC Measurement & Control, Inc.
You are here → Home > Fittings and Feedthroughs > Pressure and Vacuum Feedthroughs > Series PSF

Thermocouple Feedthroughs with Split Internal Components

Series PSF and MSF- Split Pressure and Vacuum Feedthroughs for single and multiple elements

Send Enquiry Buy Online Request Info
Series PSF (single element) and MSF (multiple elements) feedthroughs are similar to series MF feedthroughs, but have split internal components.

This permits elements, that have a larger diameter section other than at the sealing point and can pass through the feedthrough body but not through the internal components, to be installed easily. Examples are probes with fitted connectors and sensors with pot seals or bulbs.

There are three body sizes having 1/4”, 1/2” and 3/4” NPT process connections. Other process threads are also available, see back cover.

Spectite® feedthroughs are designed for ease of assembly and installation. Elements can be adjusted, removed and replaced when not under pressure or vacuum conditions.
  • Individual elements can be replaced without complete disassembly
  • Internal components – follower, sealant and seat are split to allow easy installation of elements with fitted connectors or large diameter sections.
  • Designed to carry single elements 0.040” to 0.5” diameter and multiple elements from 0.040” to 0.250” diameter
  • Pressure range: Vacuum to 10,000 psi *
  • Temperature range: -328°F to +1,600°F *
  • 316L Body (and seat where applicable). Follower and cap in 303 or 304
  • Choice of sealant materials
  • Immersion length of each element easily adjusted
  • Reusable fitting – internal components replaceable
  • A large range of feedthroughs is available to buy online

    * Dependent on sealant and fitting selected

Series PSF - Body Size, Pressure Guide and available Bore Sizes for NPT Threads2

Body Size Size 2 (1/4") Size 3 (1/2") Size 4 (3/4") Size 5 (1")
Sealant
G L N T V G L N T V G L T V G L T V
Element Sizes (dia)3 The maximum guide pressure value (in psi) at 68°F (20°C)is shown for each sealant material according to element size1.
These ratings are a guide and the suitability of any of the products described herein for a particular application
is entirely at the discretion of the purchaser as being the best judge for that particular application.
inches mm  
0.040 1.0 6900 6900 4300 3000 6500      
0.059 1.5
0.062 1.59
0.080 2.0 6900 8800 2600 1100 2600
0.118 3.0 7200 9700 1400 1400 1400
0.125 3.2
0.157 4.0 3700 8500 1400 720 2100
0.177 4.5
0.187 4.76
0.236 6.0 3300 7200 1100 580 1700 4700 1400 1800 720 2000 720 1400 290 1400
0.250 6.35
0.312 8.0   1000 1300 1100 870 1100 430 580
0.375 9.5 4300 7200 870 1100 430
0.393 10.0 430 720 290 290
0.472 12.0   720
0.500 12.7
0.625 15.88  
0.750 19.05
  1. The guide pressures shown for each type of sealant are at 68°F (20°C). Spectite® feedthroughs from TC Inc. have been designed to provide an efficient seal on the elements and restrain them from moving under pressure and vacuum. It is good installation practice to provide additional, mechanical restraint to the elements when differential pressure exceeds 50% of the feedthrough guide pressure value at 68°F (20°C). With an increase in temperature, a reduction in the maximum guide pressure value can be expected. These ratings are a guide and the suitability of any of the products described herein for a particular application is entirely at the discretion of the purchaser as being the best judge for that particular application.
  2. Other types of process connection are available, see Feedthrough Sizes.
  3. The element diameters shown are the common sizes routinely demanded for general industrial applications. Other sizes can be supplied between the minimum and maximum diameters shown.

MSF Series - Body Size, Pressure Guide and available Bore Sizes for NPT Threads2

Body Size No. of
Elements		 Size 2 (1/4") No. of
Elements		 Size 3 (1/2") No. of
Elements		 Size 4 (3/4")1 No. of
Elements		 Size 5 (1")
Sealant
G L N T V G L N T V G L T V G L T V
Element Sizes (dia) The maximum guide pressure value (in psi) at 68°F (20°C)is shown for each sealant material according to element size1.
These ratings are a guide and the suitability of any of the products described herein for a particular application
is entirely at the discretion of the purchaser as being the best judge for that particular application.
inches mm
0.040 1.0 2 to 3 5800 7900 2900 2900 2900 2 to 5 7900 7900 4300 2900 5000 2 to 9 6500 6500 3600 4300  
0.059 1.5 2100 2100 2 to 4 2 to 7 2900
0.062 1.59
0.080 2.0 2 2 to 3 2 to 6
0.118 3.0 1400 2 3900 2100 4300 2 to 4 3900 5 2100 1400 1100 1400
0.125 3.2
0.177 4.5   3600 1400 2900 2 to 3 4300 1400 2900 4 1400 750 750 430
0.187 4.76  
0.236 6.0 2 3
0.250 6.35 2
  1. The guide pressures shown for each type of sealant are at 68°F (20°C). Spectite® feedthroughs from TC Inc. have been designed to provide an efficient seal on the elements and restrain them from moving under pressure and vacuum. It is good installation practice to provide additional, mechanical restraint to the elements when differential pressure exceeds 50% of the feedthrough guide pressure value at 68°F (20°C). With an increase in temperature, a reduction in the maximum guide pressure value can be expected. These ratings are a guide and the suitability of any of the products described herein for a particular application is entirely at the discretion of the purchaser as being the best judge for that particular application.
  2. Other types of process connection are available, see Feedthrough Sizes.

Pressure and Vacuum Feedthrough Enquiry Form

1. Feedthrough Type

2. Thread Size Required
  see table
3. Element diameter
 see table
4. No. of Elements (MSF only)


5. Sealant Type

 see table
6. Quantity Required

Contact Details

Company Name


Your Name


Email


Telephone


Additional Information

If your enquiry is for more than one style of sensor, please email us with your requirements or use the box below



Send Enquiry