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300-301 Threaded Diaphragm Seal
Brand: Ashcroft IncDoes not ship to OH, United States
The Ashcroft® 300 and 301 threaded diaphragm seals protect pressure measuring instruments.
Used when process compatibility is required, these are also applied when media exhibits high temperature or has the potential to clog an instrument connection.
Ideal for satisfying many challenging applications.
Features- 316L stainless steel top housing (standard)
- Wide selection of diaphragm and lower housing materials
- Diaphragm (elastomer) clamped between top and bottom housings
- Flushing port (type 301) provides easy cleaning / flushing for process media prone to clogging
Specifications
Brand
Pressure Rating
- Up to 2,500 psi
Added Tolerance
- ±0.5% Typical
Diaphragm Material
- 304L Stainless Steel
- Gold Plated 316L SS
- 904L Stainless Steel
- 316L Stainless Steel
- Monel 400
- Tantalum
- Hastelloy C-276
- Carpenter 20
- Hastelloy B
- Hastelloy C-22
- PTFE
- Nickel
- Titanium
- Kalrez
Approvals & Certifications
- CRN
- NSF-61
Instrument Connection
- 1/4" NPT Female
- 1/2" NPT Female
Materials of Construction
- Bolt/Clamp Rings: Carbon Steel, 316L Stainless Steel (XSE)
- Nuts/Bolts: Zinc Plated Alloy Steel, 316L (XSE)
- Top Housing: 316L Stainless Steel, Monel (XYM), Titanium (XHB)
- Gasket: PTFE
Process Connection
- 1/4" to 1-1/2" NPT Female
- 1/4" to 1" NPT Male
- 1/4" to 1" Socket Weld
Connection Style
- 300: Threaded
- 301: Threaded with Flushing Port
Bottom Housing Material
- Nickel
- Titanium
- PVDF
- PVC
- Inconel® 625
- Carpenter 20®
- Super Duplex 2507
- Duplex 2205
- Hastelloy® C-22
- Hastelloy® B
- Hastelloy® C-276
- Monel® 400
- Carbon Steel
- 304L Stainless steel
- 904L Stainless steel
- 316L Stainless steel
Fill Material
- Halocarbon 4.2
- Syltherm 800 or XLT
- 10 or 50 cSt Silicone
- Glycerin (food grade)
- Silicone (food grade)
- Calflo® AF
- Mineral Oil
- Neobee® M-20 (food grade)
- 50/50 Glycerin/Water
- Propylene Glycol
- Ethylene Glycol
- 50/50 Ethylene Glycol/Water
- 80/20 Glycerin/Water
- 95/5 Water/Propylene Glycol
- Oil & Gas
- Refineries
- Chemical & Petrochemical
- Water & Wastewater
- Oil & Gas Fracking
- Biogas & Biodiesel
