Data Sheet

82 Threaded Isolation Ring

of 2

1

All specifications are subject to change without notice. All sales subject to standard terms and

conditions. Ashcroft®, Safe Quick Release (SQR)™ and Trust the Shield® are trademarks of Ashcroft Inc.

The following non-Ashcroft trademarks are the property of their respective owners: Halocarbon® and Viton™.

For more information, see Ashcroft Brands & Trademarks

©2024 Ashcroft Inc. 82_thread_isoring_ds_RevD_08-16-24

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KEY BENEFITS

• Protects instrumentation from clogging

• Short lead times

• Economical design

• Variety of fill fluids for every application

FEATURES

360° instrument rotation and removal with

Safe Quick Release™ (SQR™) option

Process connections 1/2 thru 2 NPT

Selection of 1/4 or 1/2 NPT instrument connections

Non-clogging, low maintenance flow-thru design

Ensures reliable and accurate pressure readings

Attaches to a variety of instruments

NSF-61 Compliant

(316LStainless steel / EPDM Only)

TYPICAL USES

Water and wastewater

Mining

Pulp and paper

Chemicals

WETTED COMPONENTS

End Plate Material

Flexible Liner

Carbon steel, 316L Stainless steel,

PVDF

Buna-N, PTFE, EPDM,

Natural rubber, and Viton™

NON-WETTED COMPONENTS

Body

Instrument Fittings

Carbon Steel, 316 Stainless steel

Adapters: 316L Stainless steel

Needle Valve: 316L Stainless steel

SQR: Zinc-plated carbon steel

SPECIFICATIONS

Process connection:

1/2 thru 2 NPT

Flexible liner:

Buna-N, EPDM, Natural rubber, Viton™, PTFE

End plate material

316 Stainless steel, carbon steel, PVDF

Body material:

316 Stainless steel or carbon steel

Instrument

connection size

1/4 or 1/2 NPT

Added Tolerance:

±0.5% typical

Pressure Rating:

150-PSI

Approvals:

NSF-61 (316L Stainless steel / EPDM Only)

TEMPERATURE LIMITS

Liner:

Buna-N

–30/225 °F (–34/107 °C)

Viton™

–15/350 °F (–25/177 °C)

Natural rubber

–30/225 °F (–34/107 °C)

EPDM

–40/300 °F (–40/149 °C)

Fill fluids:

Glycerin

0/400 °F (–18/204 °C)

Silicone (10Cst):

–40/500 °F (–40/260 °C)

Halocarbon®

–30/225 °F (–34/107 °C)

Consult Factory for Additional Fluids