"Image is Representative of Model Series"

Ashcroft 208 In-Line Butt Weld Diaphragm Seal

The Ashcroft® 208 in-line butt-weld diaphragm seals protect pressure measuring instruments. Mounted in-line with the process piping, it is used in applications where continuous flow is required to minimize process clogging. Its continuous-duty design prevents process fluid loss in the event the measuring instrument is removed or fails. It is an ideal model for satisfying installation requirements for oil and gas applications.

Features

316L stainless steel top housing (standard)
Wide selection of diaphragm and lower housing materials
Diaphragm welded (metallic) or bonded (elastomer) to top housing

Applications

Process Market
- Oil and Gas
- Refineries
- Chemical and Petrochemical
- Water and Wastewater
Process Applications
- Oil and Gas Fracking
- NACE Compliant Processes (Sour Gas Separation)
- Biogas and Biodeisel

Product Specs

Process Connection Size
1 1/2 NPT
1 NPT
1/2 NPT
2 NPT
3/4 NPT

Instrument Connection
1/2 NPT Female
1/4 NPT Female

Pressure Rating
2,500 psi

Added Tolerance
±0.5% typical

Connection Style
In-Line Butt Weld

Certifications & Approvals

GOST
NACE
Cleaned for Gaseous Oxygen
Hydrostatic / Pneumatic Test
Mass Spectrometer Leak Test
Positive Material Identification (PMI)
Typical Material Certification

For complete part number specifications, installation guides, and the official Ashcroft 208 In-Line Butt Weld Diaphragm Seal manual, please download the product data sheet (PDS) or instruction manual below.

Data Sheets

Data Sheet - Ashcroft 107-207, 108-208 In-Line Diaphragm Seals