Products

Thermocouple Feedthroughs for Thermocouples, Sensors and other single elements

Series PF - Pressure and Vacuum Feedthroughs

These feedthroughs are designed for sealing single elements, usually sensors, probes or tubes, where they penetrate a pressure or environmental boundary.

Common applications include sealing sheathed thermocouples and resistance thermometers, small-bore tubes and other types of sensor where they enter a process enclosure.

Series PF feedthroughs seal elements from 0.020” to 0.75”. There are five body sizes having 1/16”, 1/8”, 1/4”, 1/2” and 3/4” process connections with NPT threads. Contact us for other thread type availability.

Spectite® feedthroughs are designed for ease of assembly and installation. Elements can be adjusted, removed and replaced when not under pressure or vacuum conditions.
  • Seal on probes, sensors, small-bore tubes and other similar elements
  • Immersion length of the element can be easily adjusted
  • Five sizes of feedthrough assembly
  • Designed for easy installation of single elements 0.020” to 0.75” 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 five sealant materials
  • Reusable fitting – internal components replaceable
  • A large range of feedthroughs is available to buy online

    * Dependent on sealant and fitting selected

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

Body Size Size 0 (1/16") Size 1 (1/8") Size 2 (1/4") Size 3 (1/2") Size 4 (3/4") Size 5 (1")
Sealant
G L T G L N T V 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
0.020 0.5 9400 7900 2900 6500 7900 5000 2900 5000        
0.032 0.8
0.040 1.0 7900 10000 5000 7200 10000
0.059 1.5 2100 2100 2100 7200
0.062 1.59
0.080 2.0 6500 1400 5800 6500 1400 1400 7900 10000 2500 2900
0.118 3.0 7900 10000 2900 2900 7900
0.125 3.2
0.157 4.0   5000 1100 7900 1800
0.177 4.5
0.187 4.76
0.236 6.0   6500 1800 7900 7200 1400 5800 5800 2100 750 2100
0.250 6.35
0.312 8.0   2100 2100 6500 5000 5800 3600
0.375 9.5 2900
0.393 10.0 1100 1400 5000
0.472 12.0   4300 1000 2900 650 580
0.500 12.7
0.625 15.88 2900 4300 2100 1400 290
0.750 19.05 430
0.839 21.3  
1.00 25.4
  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.

Pressure and Vacuum Feedthrough Enquiry Form

1. Thread Size Required

  see table
2. Element diameter
 see table
3. Sealant Type

4. 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  

BACK TO TOP
Products

Contact Us

About TC

FREE Guide

Privacy Policy

Terms and Conditions

Sitemap
FREE Wallchart Guide

Join over 500,000 engineers and buyers who have already received our FREE 74 page A3 Guide to Thermocouple and Resistance Thermometry

Company Name
  Address 1
Your Name
  Address 2
Title / Dept.
  State
Email
  ZIP Code
Telephone
  Country
Company Name
Your Name
Title / Dept.
Address 1
Address 2
State
ZIP Code
Country
Email
Telephone

We will only ever use the information you provide to occasionally contact you regarding our products and we will never disclose your details to a third party. Our privacy policy can be viewed here



I agree to the terms and conditions listed in the Privacy Policy

View our ISO 90001/2008 Certficate



© 2006- TC Measurement and Control Inc., PO Box 685, Hillside, IL 60162, United States
Tel.: 877 249 1777, Fax: 708 449 0777, Email: info@tc-inc.com