Emerson Rosemount 3051 Reference Manual page 58

Hardware installation
August 2019
• When using a sealing fluid, fill both piping legs to the same level.
• When purging, make the purge connection close to the process taps and purge
through equal lengths of the same size pipe. Avoid purging through the transmitter.
• Keep corrosive or hot (above 250 °F [121 °C]) process material out of direct contact
with the sensor modules and flanges.
• Prevent sediment deposits in the impulse piping.
• Maintain equal leg of head pressure on both legs of the impulse piping.
• Avoid conditions that might allow process fluids to freeze within the process flange.
3.4.3 Process connections
Coplanar or traditional process connection
WARNING
Process leaks
Process leaks could result in death or serious injury.
When properly installed, the flange bolts will protrude through the top of the sensor
module housing.
Install flange adapters
Rosemount
NPT. Flange adapters are available with standard ½–14 NPT Class 2 connections. Use the
flange adapters to disconnect from the process by removing the flange adapter bolts.
WARNING
Process leaks
Process leaks could result in death or serious injury.
Use plant-approved lubricant or sealant when making the process connections. Refer to
the Dimensional drawings section of the Rosemount 3051
distance between pressure connections. This distance may be varied ±¼-in. (6.4 mm) by
rotating one or both of the flange adapters.
To install adapters to a coplanar flange:
Procedure
1. Remove the flange bolts.
58
Install and tighten all four flange bolts before applying pressure.
Do not attempt to loosen or remove flange bolts while the transmitter is in service.
™
3051DP and GP process connections on the transmitter flanges are ¼-18
Install and tighten all four flange bolts before applying pressure.
Do not attempt to loosen or remove flange bolts while the transmitter is in service.
Reference Manual
00809-0100-4007
Product Data Sheet for the
Rosemount 3051