Threaded Seals

100-101 Threaded Diaphragm Seals
100-101 Threaded Diaphragm Seals

100-101 Threaded Diaphragm Seals

The Ashcroft® 100 and 101 threaded diaphragm seals or isolation devices protect pressure measuring instruments.

Diaphragm MaterialBottom Housing MaterialPressure Ratings
Variety of metallic wetted materialsVariety of metallic and non-metallic materials34,5 bar, 172 bar and 345 bar
200-201 Threaded Diaphragm Seals
200-201 Threaded Diaphragm Seals

200-201 Threaded Diaphragm Seals

The Ashcroft® 200 and 201 threaded diaphragm seals or isolation devices protect pressure measuring instruments.

Diaphragm MaterialBottom Housing MaterialPressure Ratings
Variety of metallic and non-metallic wetted materialsVariety of metallic and non-metallic materials34,5 bar, 172 bar and 345 bar
300-301 Threaded Diaphragm Seals
300-301 Threaded Diaphragm Seals

300-301 Threaded Diaphragm Seals

The Ashcroft® 300 threaded diaphragm seals or isolation devices protect pressure measuring instruments.

Diaphragm MaterialBottom Housing MaterialPressure Ratings
Viton, Teflon and KalrezVariety of metallic and non-metallic materials34,5 bar, 172 bar and 345 bar
310-315 Mini-Diaphragm Seals
310-315 Mini-Diaphragm Seals

310-315 Mini-Diaphragm Seals

The Ashcroft® 310 and 315 mini-diaphragm seals or isolation devices protect pressure measuring instruments.

Diaphragm MaterialBottom Housing MaterialPressure Ratings
316L Stainless Steel, Monel 400, Hastelloy B, Hastelloy C 276316L Stainless Steel, Monel 400, Hastelloy B, Hastelloy C 276172 bar
311-312 Midi-Diaphragm Seals
311-312 Midi-Diaphragm Seals

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 MaterialBottom Housing MaterialPressure Ratings
316L Stainless Steel, Hastelloy C 276, Tantalum316L Stainless Steel, Hastelly C-27660 bar
330 All-Welded Flush Mini Diaphragm Seals
330 All-Welded Flush Mini Diaphragm Seals

330 All-Welded Flush Mini Diaphragm Seals

The Ashcroft® 330 all-welded flush mini-diaphragm seal or isolation device protect pressure measuring instruments.

Diaphragm MaterialBottom Housing MaterialPressure Ratings
316L Stainless Steel316L Stainless Steel200 bar
400-401 All-Welded Diaphragm Seals
400-401 All-Welded Diaphragm Seals

400-401 All-Welded Diaphragm Seals

The Ashcroft® 400 and 401 all-welded diaphragm seals or isolation devices protect pressure measuring instruments.

Diaphragm MaterialBottom Housing MaterialPressure Ratings
Variety of metallic wetted materialsVariety of metallic materials320 bar, 400: 600 bar, 401: 345 bar
500-501 All-Welded Diaphragm Seals
500-501 All-Welded Diaphragm Seals

500-501 All-Welded Diaphragm Seals

The Ashcroft® 500 and 501 all-welded diaphragm seals or isolation devices protect pressure measuring instruments.

Diaphragm MaterialBottom Housing MaterialPressure Ratings
Variety of metallic wetted materialsVariety of metallic materials34 bar
510-511 All-Welded Diaphragm Seals
510-511 All-Welded Diaphragm Seals

510-511 All-Welded Diaphragm Seals

The Ashcroft® 510 and 511 compact, all-welded diaphragm seals or isolation devices protect pressure measuring instruments.

Diaphragm MaterialBottom Housing MaterialPressure Ratings
316L Stainless Steel, Hastelloy C 276, Monel 400316L Stainless Steel, Hastelloy C 276, Monel 400510: 345 bar, 511: 100 bar
702-703 Flanged High Displacement Diaphragm Seals
702-703 Flanged High Displacement Diaphragm Seals

702-703 Flanged High Displacement Diaphragm Seals

The Ashcroft® 702 and 703 high-displacement diaphragm seals or isolation devices are used with low pressure or differential pressure gauges with low differential pressure and elevated static pressure.

Diaphragm MaterialBottom Housing MaterialFlange Rating
Variety of metallic and non-metallic wetted materialsVariety of metallic and non-metallic materials150, 300, 600