John C. Ernst Co, Inc.
John C. Ernst Co, Inc.
21 Gail Court
Sparta, NJ 07871-3438
USA

Toll Free: 888.943.5000
Phone: 973.940.1600
Fax: 973.940.1620
Email: sales@johnernst.com
Website: www.johnernst.com
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Flapper
Carbon Steel
Unit of Measure

Specifications

Series

 N/A S16FB

ASME Class

 N/A 300

Former JCE Model Number

 N/A 212SM

Size

 N/A 1 in

End Connections

 N/A 300 lb Flange

Type

 N/A Flapper

Window

 N/A Double

Visible Diameter/Length

 N/A 1.25 in

Weight

 N/A 17 lbs

Packaging Material

 N/A Cardboard Box

Standard Wetted Materials

Body Material

 N/A Carbon Steel

Gasket Material

 N/A Neoprene

Indicating Device

 N/A Flapper

Lens

 N/A Tempered Borosilicate

Flapper Material

 N/A 316 Stainless Steel

Standard Non-Wetted Materials

Glass Retainer

 N/A Carbon Steel

Fasteners

 N/A Plated Carbon Steel

Standard Ratings

Pressure Rating @ 100 ºF

 N/A 740 PSIG

Pressure Rating @ 250 ºF

 N/A 665 PSIG

Dimensions

Length

 N/A 6.88 in

Width

 N/A 5.25 in

Height

 N/A 4.88 in

Application Notes

Application Notes

 N/A
  • Saturated Steam Service: Upgraded gaskets and mica shields are recommended for saturated steam service. All ratings stated on our website and in our literature are non-steam ratings unless specified otherwise. Always contact our sales office for saturated steam ratings when needed.
  • Vacuum Service: Acceptable except when using with hard gaskets
  • Gaseous Service: Not acceptable for lightweight gases
  • Corrosion: Before ordering, verify all materials of our sight flow indicators are compatible with the service media(s), intermittently used cleaners, the environment, and cleaning processes in conjunction with the temperatures and pressures of the application(s) and future applications. John C. Ernst Co. does not make chemical compatibility recommendations. Compatibility is the responsibility of the user.

Replacement Parts

Replacement Parts

 N/A Please contact our sales department