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400/500 Threaded All-Welded Diaphragm Seal
Brand: Ashcroft Inc
The Ashcroft 400/500 and 401/501 all-welded diaphragm seals or isolation devices protect pressure measuring instruments.
Used to ensure process compatibility, they are also applied when process media exhibits high temperature, pulsation or the potential to clog an instrument connection.
An ideal selection for applications needing added product integrity.
Features- Compact size
- Light weight
- All-welded design
- Flushing option
- Continuous duty design
- Minimized fill volume
- Male connections eliminate adapters/fittings
Process Connection Size
Diaphragm Seal Type
Flushing Port
Flushing Port
Diaphragm Material
Bottom Housing Material
Instrument Connection Size
Options
Filling Fluid
Optional Features
View Details
Part Number / SKU
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Specifications
Brand
Approvals & Certifications
- CRN - Canadian Registration Number
Diaphragm Material
- 316L Stainless Steel
- Hastelloy B
- Hastelloy C-22
- Hastelloy C-276
- Monel
- Tantalum
- Titanium
Enclosure, Body Material
- 316L Stainless Steel
- Hastelloy B
- Hastelloy C-22
- Hastelloy C-276
- Monel
- Titanium
Fill Material
- Glycerin
- Halocarbon
- Silicone
- Syltherm
NACE & NIST
- NACE
NPT Connection
- 1" NPT Female
- 1/2" NPT Female
- 1/4" NPT Female
- 3/4" NPT Female
Nut & Bolt Material
- Clamping Bolt: 300 Stainless Steel
Operating Pressure
- Typical And, Max.
Ring Material
- Clamp Ring: Stainless Steel
Temperature Range
- -21° to 398.9° C (-70° to 750° F)
- Biogas & Biodiesel
- Chemical & Petrochemical
- NACE Compliant Processes (Sour Gas Separation)
- Oil & Gas Applications
- Oil & Gas Fracking
- Refineries
- Water & Wastewater
Documentation
Industry Brochures
Product Information
- Attaching 2-1/2" and 3-1/2" 1009 Gauges to Diaphragm Seals pdf 817 KB
- Attaching Diaphragm Seals to Low Pressure Gauges pdf 1,008 KB
- Chlorine, Bromine and Fluorine Recommended Diaphragm Materials pdf 1.1 MB
- Diaphragm Seal with Dampening Device pdf 664 KB
- Diaphragm Seal with Vacuum Gauge pdf 663 KB
- Failure and Corrective Steps for Diaphragm Seals pdf 668 KB
- High Temperature Fill Fluid pdf 668 KB
- Instruments Not Available and Diaphragm Seals pdf 668 KB
- Low Volume Tee Fitting for Instrument Assemblies pdf 443 KB
- Minimum, Maximum and Pressure Recommended Diaphragm Materials pdf 651 KB
- Temperature Error pdf 1.8 MB
- Volumetric Displacement pdf 2.4 MB
