The Ashcroft® 204 in-line diaphragm seal or isolation device protects pressure measuring instruments.
| Diaphragm Material | Bottom Housing Material | Flange Rating |
| Variety of metallic or non-metallic wetted materials | Variety of metallic or non-metallic materials | 1,000, 3,000, 5,000 or 9,000 psi - 500 psi: Viton or Kalrez Diaphragm, 2,500 psi Metal or Teflon® Diaphragm |
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