Emerson Daniel Senior Orifice Fitting Series - Selecting an appropriate plate change procedure

36 Commissioning line pressure test
Section 2: Installation Owner and operator manual
January 2015 3-9008-001 Rev M
1. Install a pressure gauge in a location on the Senior or the piping system that will
indicate the pressure contained in the Fitting. The gauge should have a maximum
pressure, rating slightly above the maximum pressure to be applied during the test.
Important
Daniel hydrostatically tests every Senior unit for fluid retention, under factory controlled
conditions, to a minimum pressure of 1.5 times its rated maximum allowable operating
pressure. If purchased alone, without a meter tube, any hydrostatic testing of the meter tube
assembly is the responsibility of the product owners or product operating personnel.
2. Slowly pressurize the system containing the Senior at a rate of 1 psig per second (0.07
bars per second) until the pressure inside the Senior reaches 20 psig (1.4 bar) then stop
and hold that pressure for five minutes.
Important
During the five-minute hold period, apply a leak detection solution to all joint and connector
areas of the Senior and line connections. No leakage should be visibly detectable or audibly
detectable during the hold period.
3. If a leak is detected, mark the leak area with a marker and reduce the pressure inside the
Senior to 0 psig (0 bar). Tighten any fastener or connector adjacent to the leak area and
repeat the leak test again.
4. If after several attempts to contain the leakage, the leakage persists, call Daniel
Customer Service for assistance. Contact information is found in the back of this
manual.
5. Once the 20 psig (1.4 bar) leak test is complete, and no leaks are detected, slowly raise
the pressure inside the Senior at a rate of 10 psig per second (0.7 bars per second) to
the maximum operating pressure of the lowest rated item in the system. However, it
should not to exceed 1.5 times the noted rated working pressure of the Senior. Hold the
maximum operating pressure on the system for a period of ten minutes.
Important
During the ten-minute hold period, apply a leak detection solution to all joint and connector
areas of the Senior and line connections. No leakage should be visibly detectable or audibly
detectable during the hold period.
FLUID EXPLOSION HAZARD
Never pressurize a unit above the limits recommended in Section 1.2.1: Technical data of this
manual. Before pressurizing the Daniel Senior Orifice Fitting, confirm the maximum allowable
operating pressure (MAOP) of each item in the system.
Over-pressurizing the Senior could lead to an explosive release of fluid resulting in serious injury
or death.