|
|
|
|
 |
MODEL 4150 INSTALLATION INSTRUCTIONS |
 General: Many of the installation problems associated with standard orifice plates have been eliminated by the
use of the Oripac. Simply follow these instructions for an accurate and reliable meter.
Pipe Requirements: Upstream and downstream pipe requirements are contingent upon two factors: (a) Beta Ratio-ratio of the orifice bore to the inlet bore (pipe l.D.) dID. (b) The type of fitting or disturbance upstream of the
Oripac. For most
applications, 10 pipe dia. upstream & 5 dia. downstream are
sufficient. (5 pipe dia. up
and 2 dia. down are
acceptable for non-critical
application.)
Installation Tips: (a) If possible, do not install a valve upstream if it is going to be throttled. Install on the downstream a minimum of 6 diameters from the Oripac. (b) The use of straightening vanes is not necessary for most applications.
Actual Installation: (a) Insert bolts through bottom half of the flange bolt circle. (b) Slide Oripac between flanges (make sure arrow on Oripac faces in the direction of flow) (c) Make sure pressure connections are properly positioned. For horizontal liquid lines, install the Oripac with the connections on or under the horizontal center line. For horizontal air or gas lines, install with the connections on or above the horizontal center line. They should also be correctly oriented so as to not be blocked by bolts when remainder of bolts are inserted: (d) Add rest of bolts and nuts leaving all bolts loose so Oripac is free to move. (e) If necessary, the Oripac can be centered using a steel ruler to measure the total side to side movement and set Oripac at half way point all around. (f) Lubricate & tighten bolts diametrically alternating to recommend flange torque. (g) Check to insure the Oripac is installed with the arrow facing in the same direction as flow. |
 |
|
|
|
