104 In-Line Threaded Diaphragm Seal

The Ashcroft® 104 in-line diaphragm seals protect pressure measuring instruments. Mounted in-line with the process piping, it is used in applications where continuous flow is required to prevent clogging. Its continuous-duty design prevents process fluid loss in the event the measuring instrument is removed or fails.

Key Features:
  • 316L stainless steel top housing (standard)
  • Wide selection of diaphragm and lower housing materials
  • Diaphragm threaded to top housing
Applications:

Process Market:
Oil and Gas
Refineries
Chemical and Petrochemical
Water and Wastewater

Process Applications:
Oil and Gas Fracking
NACE Compliant Processes (sour gas separation)
Biogas and Biodiesel

Specifications

Certifications & Approvals

Data Sheets & Instruction Manuals

Drawings & Product/Technical Information

Resources & Tools

Min/Max Guide

IMPORTANT! When selecting a diaphragm seal or isolation ring, refer to the Min/Max Guide (PI page) for compatibility with this gauge. 

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Materials Selector

Use the selector to review compatible wetted materials and requirements of your application.

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Unit Converter

Need to convert measurement units? Check out our quick and easy tool to convert pressure, temperature and flow units of measure.

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Product Information

To learn more about the technical details for options available, review our product information (PI) pages.

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Contact Ashcroft

Ashcroft is a trusted source for pressure, temperature, and test instruments around the world. Learn more about how we can help you protect your people, processes, and profits.

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