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Data Sheet

DF Flush Flanged Diaphragm Seal

All specifications are subject to change without notice.

All sales subject to standard terms and conditions.

©2022 Ashcroft Inc. df_flush_flanged_seal_ds_RevF_04-14-22

ashcroft.com

info@ashcroft.com

1.800.328.8258

FEATURES

„

Flush mounted diaphragm seal prevents clogging

„

Engineered to minimize the use of expensive

wetted materials

„

Continuous-duty construction

„

Available with a wide range of wetted materials

TYPICAL USES

„

Oil and gas

„

Refineries

„

Chemical and petrochemical

„

Water and wastewater

„

NACE Compliant processes

„

Biogas and diesel

SPECIFICATIONS

Connection Style:

Flanges, flush diaphragm

Process Connection

Size:

1, 1½, 2, 3 or 4 NPS

Instrument Connection

Size:

¼ or ½ NPT Female

Flange Ratings:

ASME 150, 300, 600, 900, 1500, 2500

Flange:

Raised face or ring joint

Added Tolerance:

±0.5% typical

Approvals and

Certificates:

CRN, NACE, ATEX, PMI, EN10204 3.1

•KEY BENEFITS

•Compact design eliminates need for lower

housing

• Protects process and instrumentation with

materials to fit your application

WETTED COMPONENTS

Diaphragm Materials

316L SS, Monel® 400, Tantalum, Hastelloy®C-276,

Halar® coated 316L SS, Gold plated 316 SS, Teflon coated 316SSL,

Hastelloy C-276 Teflon coated, Inconel 625, Inconel 825,

Teflon coated Tantalum, Duplex 2205

NON-WETTED COMPONENTS

Top Housing and Flange

316L Stainless Steel

ATEX

Conformity according to RL 94/9/EC

appendix X for mechanical equipment

in potential hazardous areas:

Optional marking

0044

II 2 GD c II TX

File no. 35101282 at notified body 0044,

TÜV NORD CERT

The temperature class will be determined

by the used measuring device.

DF

Flanged Seal

When selecting an instrument, refer to the Min/Max Guide for compatibility with this diaphragm seal or scan the QR code to the right.