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200-201 Threaded Diaphragm Seals
Brand: Ashcroft IncDoes not ship to OH, United States
The Ashcroft® 200 and 201 threaded diaphragm seals protect pressure measuring instruments.
Used when process compatibility is required, these are also applied when media exhibit high temperature or the potential to clog an instrument connection.
Ideal for satisfying many challenging applications.
- 316L stainless steel top housing (standard)
- Wide selection of diaphragm and lower housing materials
- Diaphragm welded (metallic) or bonded (elastomer) to top housing
- Flushing port (type 201) provides easy cleaning / flushing for process media prone to clogging
- NSF-61 Compliant
Specifications
Brand
Added Tolerance
- ±0.5% Typical
Pressure Rating
- 200 to 2,500 psi
- 200 to 5,000 psi (OPT.)
Instrument Connection
- 1/4" NPT Female
- 1/2" NPT Female
Process Connection
- 1/4" to 1" NPT Male
- 1/4" to 1-1/2" NPT Female
- 1/4" to 1" Socket Weld
Connection Style
- 200: Threaded
- 201: Threaded with Flushing Port
Diaphragm Material
- 316L Stainless Steel
- 904L Stainless Steel
- 304L Stainless Steel
- Tantalum
- Monel 400
- Hastelloy C-276
- Hastelloy C-22
- Hastelloy B
- Carpenter 20
- Kalrez
- Nickel
- Gold Plated 316L SS
- Titanium
- Viton
- PTFE
Fill Material
- Glycerin
- Halocarbon 4.2
- 10 cSt /50 cSt Silicone
- Syltherm 800/XLT
- Calflo® AF
- Mineral Oil
- Neobee® M-20
- 50/50 Glycerin/Water
- Propylene Glycol
- Ethylene Glycol
- 50/50 Ethylene Glycol/Water
- 80/20 Glycerin/Water
- 95/5 Water/Propylene Glycol
Bottom Housing Material
- 304L/904L Stainless Steel
- 316L Stainless Steel
- Carbon Steel
- Hastelloy C-22
- Hastelloy B
- Hastelloy C-276
- Monel 400
- Duplex 2205
- Super Duplex 2507
- Carpenter 20
- Inconel 625
- Nickel
- Titanium
- PVDF
- PVC
Material of Construction
- Top Housing: 316L SS, Monel, Titanium
- Bolt/Clamp Ring: Carbon Steel, 316L SS
- Nuts/Bolts: Zinc Plated Alloy Steel, 316L SS
- Gasket: PTFE
Approvals & Certifications
- CRN
- GOST
- NACE
- NSF 61 Compliant
- Process Market:
- Oil & Gas
- Refineries
- Chemical & Petrochemical
- Water & Wastewater
- Process Applications:
- Oil & Gas Fracking
- NACE Compliant Processes (Sour Gas Separation)
- Biogas & Biodiesel
