All-welded 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 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

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

The Ashcroft® 402 and 403 flanged all-weld 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	150 to 1500 - class flanges

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

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

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

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