74
“Extended time” procedure
Section 4: Orifice plate installation and removal instructions
Owner and operator manual
January 2015
3-9008-001 Rev M
Procedure:
To remove the Orifice Plate (13) from the Daniel Senior Orifice Fitting, the operator must first
balance the pressure between the Top (14) and the Body (4).
1.
Open the Equalizer Valve (1) one half to two full turns using the Operating Wrench (2).
Step 1
Step 2
2.
Wait several seconds while the pressure in the Top (14) equalizes to that of the Body
(4).
3.
Using the Operating Wrench (2) rotate the Slide Valve Shaft (5) until it stops and the
OPEN position is specified on the Indicator Plate (5A) with the Indicator Pointer (5B).
Step 3
Step 4
4.
Rotate the Lower Plate Carrier Shaft (6), located on the Body (4), using the Operating
Wrench (2) in a direction that will move the Plate Carrier (8DM or 8DMC) out of the
Body (4) into the Top (14).
