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400-401 All-Welded Diaphragm Seal
Brand: Ashcroft IncDoes not ship to OH, United States
The Ashcroft® 400 and 401 all-welded 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- Select diaphragm and lower housing materials
- All-welded construction
- Carbon steel rings (standard); 300 stainless steel rings (optional)
- Pressure rated up to 4,400 psi; optional high-pressure rings to 9,000 psi (type 401: 5,000 psi )
- Flush port (type 401) provides easy cleaning / flushing for process media prone to clogging
Specifications
Brand
Connection Style
- 400: Threaded
- 401: Threaded with flushing port
Process Connection
- 1/4" to 1" NPT Male
- 1/4" to 1-1/2" NPT Female
Instrument Connection
- 1/4" or 1/2" NPT Female
Added Tolerance
- ±0.5% Typical
Bottom Housing Material
- 316L Stainless Steel
- Hastelloy C-22
- Hastelloy C-276
- Monel
- Titanium
Top Housing Material
- 316L Stainless Steel
- Hastelloy® C-276
- Monel®
- Titanium
Fill Material
- Glycerin
- Silicone
- Halocarbon
- Syltherm
- 50/50 Ethylene Glycol/Water
- Polypropylene Glycol
- Distilled Water
- Ethylene Glycol
- 50/50 Glycerin/Water
- 80/20 Glycerin/Water
- Calflo® AF
- Mineral Oil
- Neobee® M-20
- 95/5 Water/Propylene Glycol
Diaphragm Material
- 316L Stainless Steel
- Hastelloy C-276
- Monel 400
- Tantalum
- Titanium
Nut Material
- Stainless Steel
Bolts/Clamp Rings
- Carbon Steel
Pressure Rating
- Up to 4,400 psi, 9,000 psi (OPT.)
Approvals & Certifications
- CRN
- NACE
- Process Market:
- Oil & Gas
- Refineries
- Chemical & Petrochemical
- Water & Wastewater
- Process Applications:
- Oil & Gas Fracking
- NACE Compliant Processes (Sour Gas Separation)
- Biogas & Biodiesel
