Rosemount 1199 - Tagging; Flanged Type Seals: Flush or Extended Diaphragm

Model 1199 Diaphragm Seal Systems Manual
2-2
Tagging
Each diaphragm seal system is tagged in accordance with the customer
requirements. The standard tag is attached to the transmitter/seal
system. Tag is 0.020 in. (0.051cm) thick with 0.125 in. (0.318 cm) high
letters. A sample tag is shown below. 3-A
®
approved sanitary seal
systems have a 3-A symbol marked on the diaphragm seal.
The Maximum Working Pressure (MWP) of the transmitter/seal system
is stamped on the transmitter neck tag. This is dependent upon the
maximum pressure rating of the seal system or transmitter upper
range limit.
Flanged Type Seals: Flush
or Extended Diaphragm
FIGURE 2-1. Flanged Type Seal.
Bolt Torquing When connecting the process and mating flange, the bolts should be
torqued to the applicable flange requirements. Required torque is a
function of the gasket material and surface treatment of the bolts and
nuts which are customer supplied.
Flushing Connection Ring
Installation
The flanged type seals are available with an optional flushing
connection ring (or lower housing.) For certain seal types the flushing
connection ring is supplied with four clips and screws that hold the
diaphragm seal to the lower housing in order to make installation
easier.
Gasket Installation When connecting the diaphragm seal, gasket, and flushing connection
ring make sure the gasket is properly aligned on the gasket sealing
surface.
Mounting
Flange
Upper Housing
Capillary Connection
Diaphragm
Flushing Connection
Ring (Lower Housing)
Gasket
Process Side
Mounting Clip
3051A23C
1199-0561A01A