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740-741 High-Displacement Diaphragm Seals
The Ashcroft® 740 and 741 high-displacement diaphragm seals or isolation devices are used with low-ranged instruments or high static pressure dp gauges with low differential pressure.
| Diaphragm Material | Bottom Housing Material | Pressure Ratings |
|---|---|---|
| Variety of metallic wetted materials | Variety of metallic wetted materials | 50 bar |
510-511 All-Welded Diaphragm Seals
The Ashcroft® 510 and 511 compact, all-welded diaphragm seals or isolation devices protect pressure measuring instruments.
| Diaphragm Material | Bottom Housing Material | Pressure Ratings |
|---|---|---|
| 316L Stainless Steel, Duplex, Hastelloy C 276, Monel 400, Inconel 625 | 316L Stainless Steel, Duplex, Hastelloy C 276, Monel 400, Inconel 625 | 100 bar, 345 bar |
500-501 All-Welded Diaphragm Seals
The Ashcroft® 500 and 501 all-welded diaphragm seals or isolation devices protect pressure measuring instruments.
| Diaphragm Material | Bottom Housing Material | Pressure Ratings |
|---|---|---|
| Variety of metallic wetted materials | Variety of metallic materials | 34 bar |
400-401 All-Welded Diaphragm Seals
The Ashcroft® 400 and 401 all-welded diaphragm seals or isolation devices protect pressure measuring instruments.
| Diaphragm Material | Bottom Housing Material | Pressure Ratings |
|---|---|---|
| Variety of metallic wetted materials | Variety of metallic materials | 320 bar, optional Type 400: 600 bar, Type 401: 345 bar |
330 All-Welded Flush Mini Diaphragm Seals
The Ashcroft® 330 all-welded flush mini-diaphragm seal or isolation device protect pressure measuring instruments.
| Diaphragm Material | Bottom Housing Material | Pressure Ratings |
|---|---|---|
| 316L Stainless Steel | 316L Stainless Steel | 200 bar |
311-312 Midi-Diaphragm Seals
The Ashcroft® 311 and 312 midi-diaphragm seals or isolation devices are used in confined areas to protect measuring instruments.
| Diaphragm Material | Bottom Housing Material | Pressure Ratings |
|---|---|---|
| 316L Stainless Steel, Hastelloy C 276, Tantalum | 316L Stainless Steel, Hastelloy C-276 | 70 bar |
310-315 Mini-Diaphragm Seals
The Ashcroft® 310 and 315 mini-diaphragm seals or isolation devices protect pressure measuring instruments.
| Diaphragm Material | Bottom Housing Material | Pressure Ratings |
|---|---|---|
| 316L Stainless Steel, Monel 400, Tantalum, Hastelloy C 276 | 316L Stainless Steel, Monel 400, Hastelloy C 276 | 172 bar |
300-301 Threaded Diaphragm Seals
The Ashcroft® 300 threaded diaphragm seals or isolation devices protect pressure measuring instruments.
| Diaphragm Material | Bottom Housing Material | Pressure Ratings |
|---|---|---|
| Viton, Teflon and Kalrez | Variety of metallic and non-metallic materials | 14 bar up to 172 bar |
200-201 Threaded Diaphragm Seals
The Ashcroft® 200 and 201 threaded diaphragm seals or isolation devices protect pressure measuring instruments.
| Diaphragm Material | Bottom Housing Material | Pressure Ratings |
|---|---|---|
| Variety of metallic and non-metallic wetted materials | Variety of metallic and non-metallic materials | 34 bar, 172 bar and 345 bar |
100-101 Threaded Diaphragm Seals
The Ashcroft® 100 and 101 threaded diaphragm seals or isolation devices protect pressure measuring instruments.
| Diaphragm Material | Bottom Housing Material | Pressure Ratings |
|---|---|---|
| Variety of metallic wetted materials | Variety of metallic and non-metallic materials | 34 bar, 172 bar and 345 bar |