102-103 Flanged Diaphragm Seals
The Ashcroft® 102 and 103 flanged diaphragm seals protect pressure measuring instruments. Used when process compatibility is required, they are also applied when media exhibit high temperature or the potential to clog an instrument connection. Ideal for satisfying many challenging applications.
Key Features:
- 316L stainless steel top housing (standard)
- Wide selection of diaphragm and lower housing materials
- Diaphragm threaded to top housing
- Flush port (model 103) provides easy cleaning / flushing due to process media prone to clogging
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
Process Connection Size
½, ¾, 1, 1½, 2 or 3 NPS
Instrument Connection
¼ or ½ NPT Female
Added Tolerance
±0.5% typical
Connection Style
102: Flange
103: Flange with flushing port
Flange
150, 300, 600, 900 & 1,500 class
Flange Ratings (MAWP)
Per ASME B16.5
Certifications & Approvals
Cleaned for Gaseous Oxygen
GOST
Hydrostatic / Pneumatic Test
Mass Spectrometer Leak Test
NACE
Positive Material Identification (PMI)
Typical Material Certification
Instruction Manuals:
Product/Technical Information:
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Resources & Tools
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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