Rosemount 1199 Diaphragm Seal (FFW / RFW / RTW)

Rosemount1 configuration

Configure Your Rosemount 1199 Diaphragm Seal System

Diaphragm seal system that protects pressure transmitters from hot/cold, corrosive, or erosive process media. Direct-mount or capillary style. Wide variety of seal types (threaded, flanged, hygienic, flush flange, pancake). Pairs with 3051C/T/S, 2051, and 4051S transmitters via the S1/S2 assemble-to codes. The encoded entry is the RTW threaded seal variant (one of multiple 1199 sub-products).

Required Specifications

5 of 6 selected

Fill Fluid*

Industry Standard*

Diaphragm & Wetted Material*

Lower Housing Material*

Flushing Connection Quantity & Size*

Bolt Material*

Complete the remaining 1 required specification to generate a part number.

Pre-configured Options(1)

Rosemount

1199 Direct Mount Diaphragm Seal

Direct-mount diaphragm seal that bolts to the high side of a Coplanar transmitter (3051C, 2051C, or 3051S_C). Couples process pressure to the transmitter sensor through an isolating diaphragm and silicone fill fluid — protects the transmitter from hot, cold, corrosive, viscous, or clogging processes. Configured factory-direct via the seals selection (S1/S2) on the 3051/2051 transmitter or the B11/B12 process connection on the 3051S. Flush Flanged (FFW) style covered by the online configurator; threaded, hygienic, and specialty seal styles available by quote.

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