Day 1
What are the three essential elements of a regulator?
Restricting, Measuring and Loading.
Will also accept: Orifice/Plug/Disc, Diaphragm, Spring/Weight/Person
What additional part is used/required on a Pilot-Operated regulator compared to a Self-Operated Regulator?
Hint: This part is not used on a Self-Op
Restrictor
OR
Pilot
How many pilots in total will be in a Working Monitor setup?
3
Note: 2 on the first regulator, 1 on the second
What are the two most common places for a regulator to fail?
1. Disc
2. Orifice
For a Fisher Product : What document provides product diagrams and component part numbers?
Instruction Manual
What are the two rules of thumb you should consider when sizing a regulator?
1. Lightest Spring
2. Smallest Orifice
What type of regulator is the EZR?
Unloading style Pilot-Operated regulator
Note: Boot style is only valid if the above is included
Must answer BOTH to get points!
In a WORKING MONITOR system:
1) Which regulator takes the largest pressure cut (Worker or Monitor), and
2) What percentage of the total pressure cut does it take?
Worker
65% cut
What is a common diaphragm/ plug material used for steam applications?
+ 20 points : Name the gasket material
Metal, or Metal-to-metal trim
+ 20 points : Graphoil for the gasket
How should the T205 be mounted for best performance in Tank Blanketing applications?
+ 50 points : Justify your answer.
Spring case pointing down
+ 50 points :This orientation removes the added force caused by the weight of the spring, which can make a difference at very low set points.
Must list all 3!
What do the B, M and R stand for in the 627BMR?
B = Balanced Port
M = Enternal Registration (Monitor)
R= Internal Relief
You have a Fixed Factor billing meter set that needs a regulator to provide a set point of 2 psig, and the line size 1-1/2". Which Fisher Pilot-Operated regulator is designed for this kind of application?
299H
Note: Other regulators can be used but this one is the most cost effective and best-suited.
Get your paper and marker:
One diagram per group.
Draw a working SERIES regulator system and a Downstream WIDE OPEN MONITOR SYSTEM
Label the setpoints: 10 psig & 15 psig on your schematic
A/E to verify
If there's a tear in the boot-style EZR, what will the downstream pressure do?
+ 50 points : Justify your answer.
Downstream pressure will Rise
+ 50 points : Inlet pressure will leak by the diaphragm/ plug and flow downstream.
Name of the certification standard for sour gas/ corrosive service for metal parts.
+ 20 points : What is the full name?
NACE
+ 20 points : National Association of Corrosion Engineers
What is one purpose of the Shroud in the CS800?
1. To create boost
OR
2. To optimize flow for each spring range
Name at least two ways to achieve Low Gain on a Loading Style Pilot Operated Regulator?
Larger restrictor
Smaller Pilot orifice
Stiffer Spring
Smaller Pilot or Main valve diaphragm
Lower inlet pressure (low pressure differential), Use a Pilot Supply Regulator
What is the rule of thumb for capacity when sizing a Wide Open Monitor system?
There will be a 30% capacity drop through the wide-open regulator (monitor)
Name one Self-Operated regulator and one Pilot-Operated regulator that could be used with corrosive process gas AND liquids.
Self Op: MR95, T205 (also accept 67C, 67D)
Pilot Op: 1098 (also accept MR105, LR125)
Name three Fisher regulators that offer integral Slam Shut solutions.
Any of the following:
CS800/CSR Series (CS804)
299H (299HV)
EZH (EZH-OSX)
EZR (EZR-OSX)
EZL (EZL-OSX)
627 (627-OSX)
The ___ series is our new regulator that bridges the capacity gap between self-operated and pilot-operated regulators.
LSR
Name the one pilot-operated regulator we offer that has a Spring-to-Open Main Valve.
EZHSO
When sizing for relief:
What equation must be used to determine Qwo, the relief capacity required (in SCFH) of Natural Gas?
Qwo = P1,abs X CGwide-open X 1.29
Note: P1,abs = (Absolute) Inlet Pressure
Will also accept 1.3 (instead of 1.29)
In an EZH : if my control line breaks completely, will the regulator fail open or closed?
+ 50 points : Justify your answer
Fail Open
+ 50 points : Pilot will only sense atmospheric pressure.
Pilot will sense atmospheric pressure under the diaphragm, open, load pressure to open the main valve, but can't sense the rise in ds pressure, so it won't close the valve again.
Refer to your worksheet:
Please label the components of the CS800 in the photo.
Refer to A/E