Hydrogen flush flanged diaphragm seal DF
- The Ashcroft DF flush flanged diaphragm seal uses a diaphragm welded directly to the assembly flange.
- This eliminates much of the cost associated with bulky lower housings made from exotic and expensive wetted materials.
- The flush-mounted diaphragm prevents clogging and is available in a full range of metallic and coated materials.
- There is also flushing ring option for flush flanged diaphragm seals.
- Flushing ring is available for various ASME B16.5 flange sizes.
Key features
- Flush mounted diaphragm seal prevents clogging of process media
- Flush design minimizes the use of expensive specialty wetted materials
- Continuous-duty construction
- Available with a wide range of wetted materials
- Available with optional Flushing Ring
- Compact design eliminates need for lower housing
- Protects process and instrumentation with materials to fit your application
- The flushing ring provides a process flushing option for flush flanged diaphragm seals
- Flushing ring can be used to flush, sample, or vent process when used with isolating valves
- Dual ½ NPT flushing ports for flush (DF) diaphragm seals
- Flushing ring is machined from bar stock
- Flushing ring is available for various ASME B16.5 flange sizes
Specifications
- Connection style: Flanged, flush diaphragm
- Process connection size: 1, 1½, 2, 3 or 4 NPS
- Instrument Connection: ¼ or ½ NPT Female
- Flange: 150, 300, 600, 900 & 1,500 class
- Flange Ratings (MAWP): Per ASME B16.5
Materials
- For wetted components:
- Diaphragm: 316L SS, Monel® 400, Tantalum, Hastelloy®C-276, Halar® coated 316L SS, Gold plated 316 SS, Teflon coated 316SSL, Hastelloy C-276 Teflon coated, Inconel 625, Inconel 825, Teflon coated Tantalum, Duplex 2205
- For non-wetted components:
- Top housing and flange: 316L Stainless Steel
Contact us
- Ashcroft is a trusted source for pressure, temperature, and test instruments around the world. Interested? Please contact the vendor by filling in the contact request form.
