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702-703 Flanged High Displacement Diaphragm Seals
Brand: Ashcroft IncDoes not ship to OH, United States
The Ashcroft® 702 and 703 high-displacement diaphragm seals are used with low differential pressure gauges rated for elevated static pressures up to 750 psi.
Used to ensure material compatibility, they are also applied when process media exhibit pulsation or the potential to clog an instrument connection.
An ideal product for satisfying low pressure measurement needs.
Features- Wide selection of diaphragm and lower housing materials
- Enlarged welded diaphragm; high displacement allows high sensitivity to pressure fluctuations
- Flushing port (type 703) provides easy cleaning / flushing due to process media prone to clogging
Specifications
Brand
Added Tolerance
- ±0.5% Typical
Approvals & Certifications
- CRN
- Positive Material Identification (PMI)
- Typical Material Certification
Process Connection
- 1" NPS
- 1/2" NPS
- 1-1/2" NPS
- 3/4" NPS
- 2" NPS
- 3" NPS
Instrument Connection
- 1/2" NPT Female
- 1/4" NPT Female
Diaphragm Material
- 316 Stainless Steel
- Hastelloy B
- Hastelloy C-276
- K-Monel
- Tantalum
- Titanium
Bottom Housing Material
- 316 Stainless Steel
- Carpenter 20
- Hastelloy B
- Hastelloy C-276
- Tantalum
- Monel
- Titanium
Top Housing Material
- 316L Stainless Steel
Fill Material
- Glycerin
- Halocarbon
- Silicone
- Syltherm
- Calflo® AF
- Mineral Oil
- Neobee® M-20 (food grade)
- Distilled Water
- Glycerin/Water
- Propylene Glycol
- Ethylene Glycol
- Ethylene Glycol/Water
- Water/Propylene Glycol
Connection Style
- 703: Flanged with flushing port
- 702: Flanged
Flange Rating
- Per ASME B16.
Assembly Studs
- Carbon Steel, 316 SS (optional)
- Process Market:
- Oil & Gas
- Refineries
- Chemical & Petrochemical
- Water & Wastewater
- Process Applications:
- Oil & Gas Racking
- NACE Compliant Processes (Sour Gas Separation)
- Bioassay & Biocides
