DF Flush Flanged Diaphragm Seal
The Ashcroft® DF flush flanged diaphragm seal uses a diaphragm welded directly to the assembly flange. This eliminates much of the cost associated with bulky lower housings made from exotic and expensive wetted materials. The flush-mounted diaphragm prevents clogging and is available in a full range of metallic and coated materials.
Key Features:
- Flush design minimizes the use of expensive specialty wetted materials
- Flush-mounted diaphragm prevents clogging of process media
- Available with optional Flushing Ring
Applications:
Process Market:
Oil and Gas
Refineries
Chemical and Petrochemical
Water and Wastewater
Process Applications:
Oil and Gas Fracking
NACE Compliant Processes
Biogas and Diesel
Specifications
Certifications & Approvals
Data Sheets & Instruction Manuals
Drawings & Product/Technical Information
Process Connection Size
1, 1½, 2, 3 or 4 NPS
Instrument Connection
¼ or ½ NPT Female
Added Tolerance
±0.5% typical
Connection Style
Flanged, flush diaphragm
Flange
150, 300, 600, 900 & 1,500 class
Flange Ratings (MAWP)
Per ASME B16.5
Certifications & Approvals
Cleaned for Gaseous Oxygen
Hydrostatic / Pneumatic Test
Mass Spectrometer Leak Test
Material test certification in accordance with EN10204 3.1
NACE
Oxygen Cleaning
Positive Leak Testing
Positive Material Identification (PMI)
Instruction Manuals:
Product/Technical Information:
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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.
Materials Selector
Use the selector to review compatible wetted materials and requirements of your application.
Unit Converter
Need to convert measurement units? Check out our quick and easy tool to convert pressure, temperature and flow units of measure.
Product Information
To learn more about the technical details for options available, review our product information (PI) pages.
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