pressure sensor accessories
DESCRIPTION
PRESSURE SENSOR ACCESSORIES. 2008-CHEM-83 2008-CHEM-63 2008-CHEM-27 2008-CHEM-129 2008-CHEM-147. SYNOPSIS. Introduction Categories/Kinds of Pressure Sensing Accessories Purpose References. INTRODUCTION. Definition - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: PRESSURE SENSOR ACCESSORIES](https://reader035.vdocuments.us/reader035/viewer/2022081503/568166a9550346895dda9ea6/html5/thumbnails/1.jpg)
PRESSURE SENSOR
ACCESSORIES2008-CHEM-832008-CHEM-632008-CHEM-27
2008-CHEM-129 2008-CHEM-147
1
![Page 2: PRESSURE SENSOR ACCESSORIES](https://reader035.vdocuments.us/reader035/viewer/2022081503/568166a9550346895dda9ea6/html5/thumbnails/2.jpg)
2
Introduction
Categories/Kinds of Pressure Sensing Accessories
Purpose
References
SYNOPSIS
![Page 3: PRESSURE SENSOR ACCESSORIES](https://reader035.vdocuments.us/reader035/viewer/2022081503/568166a9550346895dda9ea6/html5/thumbnails/3.jpg)
3
Definition To avoid excessive maintenance problems
and damage of instruments, special accessories provide a safe and reliable working of instrument as well as the process
Working Principle
INTRODUCTION
![Page 4: PRESSURE SENSOR ACCESSORIES](https://reader035.vdocuments.us/reader035/viewer/2022081503/568166a9550346895dda9ea6/html5/thumbnails/4.jpg)
4
Valve Manifolds
Bleed (Vent) Fittings
Pressure Pulsation Damping
Fill Fluid Mechanism
Remote and Chemical Seals
CATEGORIES/KINDS OF PRESSURE SENSING ACCESSORIES
![Page 5: PRESSURE SENSOR ACCESSORIES](https://reader035.vdocuments.us/reader035/viewer/2022081503/568166a9550346895dda9ea6/html5/thumbnails/5.jpg)
5
Three Valve ManifoldValve Manifolds
A fourth valve called a “bleed” valve used to vent trapped fluid pressure to atmosphere
![Page 6: PRESSURE SENSOR ACCESSORIES](https://reader035.vdocuments.us/reader035/viewer/2022081503/568166a9550346895dda9ea6/html5/thumbnails/6.jpg)
6
Two block valves are left open to allow process fluid pressure to reach the transmitter. The equalizing valve is left tightly shut so no fluid can pass between the “high” and “low” pressure sides
![Page 7: PRESSURE SENSOR ACCESSORIES](https://reader035.vdocuments.us/reader035/viewer/2022081503/568166a9550346895dda9ea6/html5/thumbnails/7.jpg)
7
Five Valve Manifold
For normal operation and maintenance Never open while both block valves
![Page 8: PRESSURE SENSOR ACCESSORIES](https://reader035.vdocuments.us/reader035/viewer/2022081503/568166a9550346895dda9ea6/html5/thumbnails/8.jpg)
8
Bleed (Vent) FittingsClose-up views of a bleed fitting both assembled (left) and with the plug fully extracted from the fitting (right)
Bleed fittings installed in two different ways
![Page 9: PRESSURE SENSOR ACCESSORIES](https://reader035.vdocuments.us/reader035/viewer/2022081503/568166a9550346895dda9ea6/html5/thumbnails/9.jpg)
9
Pressure Pulsation Damping
An oil-filled pressure gauge Snubber
![Page 10: PRESSURE SENSOR ACCESSORIES](https://reader035.vdocuments.us/reader035/viewer/2022081503/568166a9550346895dda9ea6/html5/thumbnails/10.jpg)
10
Electrical Pressure Snubber
![Page 11: PRESSURE SENSOR ACCESSORIES](https://reader035.vdocuments.us/reader035/viewer/2022081503/568166a9550346895dda9ea6/html5/thumbnails/11.jpg)
11
Fill Fluid Mechanism Fill the pressure sensor mechanism with a clean liquid (called a fill fluid) Transfer pressure from the process fluid to the fill fluid
![Page 12: PRESSURE SENSOR ACCESSORIES](https://reader035.vdocuments.us/reader035/viewer/2022081503/568166a9550346895dda9ea6/html5/thumbnails/12.jpg)
12
Remote and Chemical Seal
![Page 13: PRESSURE SENSOR ACCESSORIES](https://reader035.vdocuments.us/reader035/viewer/2022081503/568166a9550346895dda9ea6/html5/thumbnails/13.jpg)
13
Pressure gauge with a chemical seal diaphragm
Thin metal isolating diaphragm Chemical Seal Diaphragm
![Page 14: PRESSURE SENSOR ACCESSORIES](https://reader035.vdocuments.us/reader035/viewer/2022081503/568166a9550346895dda9ea6/html5/thumbnails/14.jpg)
14
Electronic PT Remote Seal
Capillary tube with coiled metal (“armor”) sheath
Close-up view of the sealing diaphragm with corrugated design
![Page 15: PRESSURE SENSOR ACCESSORIES](https://reader035.vdocuments.us/reader035/viewer/2022081503/568166a9550346895dda9ea6/html5/thumbnails/15.jpg)
15
Water Traps & Pigtal Siphon
Pigtail Siphons Transmitter with Pigtail Siphons
![Page 16: PRESSURE SENSOR ACCESSORIES](https://reader035.vdocuments.us/reader035/viewer/2022081503/568166a9550346895dda9ea6/html5/thumbnails/16.jpg)
16
Singh S.K., “Industrial Instrumentation and Control”, Tata McGraw Hill Publishing Company Limited New Delhi, Edition Ist, Chapter 12, Page 393-397
Tony R. Kuphaldt, Jan11, 2009, lessons in industrial instrumentation, Creative Commons, page 397-425
http://iamechatronics.com/notes/general-engineering
Dr. Shahid Naveed, Dr. Ing Naveed Ramzan & Ms. Sana Yousuf 2011, Industrial instrumentation, First Edition, Allied Book company, Pages 77-78
REFERENCES