All specifications are subject to change without notice.

All sales subject to standard terms and conditions.

©2021 Ashcroft Inc. 400-500_Thread_Seal_ds_RevH_06-28-21

ashcroft.com

info@ashcroft.com

1.800.328.8258

Data Sheet

400/500 Threaded All-Welded Diaphragm Seal

of 4

4

400 THREADED SEAL

A

B

C

3.75

[95]

2.88

[73]

1.81

[46]

500 THREADED SEAL

A

B

C

2.50

[63]

2.88

[73]

1.81

[46]

C

A

B

A

B

C

DIMENSIONS in [ ] are millimeters

For reference only, consult Ashcroft for specific dimensional drawings

Bourdon Tube

Gauge Socket

Seal Top Housing

Seal Bottom Housing

50 100 150 200 250 300 350 400 450 500 550 600 650 700 750

DEGREES °F

This graph represents the heat dissipation based on results of a specific

laboratory test. These results may vary in the field based on multiple factors

such as ambient temperature, type of process media and/or velocity. This data

set is to be used as a reference point only. These test results are based on an

ambient temperature of 68°F.