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402-403 Flanged All-Welded Diaphragm Seal
Brand: Ashcroft IncDoes not ship to OH, United States
The Ashcroft® 402 and 403 flanged all-weld diaphragm seals protect pressure measuring instruments.
Used to ensure process compatibility, they are also applied when process media exhibit high temperature, pulsation or the potential to clog an instrument connection.
An ideal selection for applications requiring minimal potential leak paths.
Features- Wide selection of diaphragm and lower housing materials
- All welded construction
- Flushing port (type 403) provides easy cleaning / flushing due to process media prone to clogging
Specifications
Brand
Fill Material
- Distilled Water
- Ethylene Glycol & Water
- Food Grade Silicone
- Glycerin
- Halocarbon
- Propylene Glycol
- Silicone
- Syltherm
- Calflo® AF
- Mineral Oil
- Neobee® M-20 (food grade)
- Glycerin/Water
- Ethylene Glycol
- Water/Propylene Glycol
Diaphragm Material
- 316 Stainless Steel
- Hastelloy B
- Hastelloy C-22
- Hastelloy C-276
- K-Monel
- Tantalum
- Titanium
Bottom Housing Material
- 316 Stainless Steel
- Hastelloy B
- Hastelloy C-22
- Hastelloy C-276
- Monel
- Titanium
- Carpenter® 20
- Tantalum
Flange Material
- Carbon Steel
Process Connection
- 1/2", 3/4", 1", 1-1/2", 2", 3" NPS
Connection Style
- 402: Flanged
- 403: Flanged with flushing port
Approvals & Certifications
- CRN
Instrument Connection
- 1/4" NPT
- 1/2" NPT
Flange Ratings (MAWP)
- Per ASME B16.5
Flange
- 150, 300, 600, 900 & 1,500 class
Added Tolerance
- ±0.5% Typical
- Process Market:
- Oil & Gas
- Refineries
- Chemical & Petrochemical
- Water & Wastewater
- Process Applications:
- Oil & Gas Fracking
- NACE Compliant Processes (Sour Gas Separation)
- Biogas & Biodiesel
