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1. Adjusting Screw
Sets the preload of the actuator spring. Controls sensitivity, spring compression, and fail-position behavior.
2. Adjusting Screw Gasket
Seals around the adjusting screw to prevent air leakage.
3. Spring Button
Supports and aligns the top of the spring so compression stays uniform.
4. Cylinder
Main actuator housing that holds compressed air. Air pressure acts on the piston inside.
5. Spring
Provides the opposing force to the piston. Determines fail-open/fail-close action and ensures return travel.
6. Piston
Moves up or down based on air pressure, transferring force to the actuator stem.
7. Piston Retaining Nut
Locks the piston onto the actuator stem, ensuring both move together.
8. Piston O-Ring / Piston Stem O-Ring
Creates an airtight seal around the piston to prevent air leakage between cylinder chambers.
9. Actuator Stem
The shaft connected to the piston. Transfers movement directly to the valve stem and plug.
10. Actuator Stem Spacer
Maintains proper actuator stem height and ensures correct travel alignment.
11. Actuator Stem Bushing & O-Ring
– Bushing: Guides the stem to ensure straight, smooth movement.
– O-Ring: Prevents air leakage along the stem passage.
12. Stem Bellows
Protects the stem from dust, moisture, and contamination.
13. Cylinder Retaining Ring
Holds the cylinder securely to the actuator housing.
14. Stroke Plate
Indicates actuator travel position (e.g., % open). Used for calibration and troubleshooting.
15. Yoke
Structural connector between actuator and valve body. Must withstand all actuator forces.
16. Yoke Clamp / Yoke O-Ring
Provides a sealed and rigid mechanical connection between the actuator and yoke.
17. Stem Clamp
Locks the actuator stem to the valve stem so movement is transferred correctly.
18. Upper Packing / Lower Packing
Soft sealing materials around the valve stem to prevent process fluid from leaking while the stem moves.
19. Packing Spacer
Ensures equal compression on packing layers for consistent sealing performance.
20. Gland Flange
Applies downward force on the packing to create a tight seal.
21. Upper & Lower Stem Guide / Guide Liner
Keep the stem centered and stable, preventing sideways movement.
Essential for accuracy and smooth control valve operation.
22. Bonnet
Covers and protects the stem assembly. Houses the packing and guides.
23. Bonnet Flange & Bolting
Mechanical connection between bonnet and valve body.
24. Bonnet Gasket
Provides sealing between bonnet and body to prevent process leakage.
25. Seat Retainer
Holds the seat ring firmly in position.
26. Seat Ring
The primary sealing surface where the plug closes against to stop flow.
27. Seat Ring Gasket
Seals between the seat ring and valve body to prevent bypass leakage.
28. Plug
The control element of the valve. Moves up/down to regulate flow.
29. Body
Main pressure-containing housing where fluid flows through.
Today, let’s take a smooth dive into one of the most important building blocks of modern automation — the Remote Terminal Unit, or simply the RTU.

If you’ve ever wondered how information travels from instruments in the field all the way to the control room screens, the RTU is basically the quiet hero making it all happen.
—
What Exactly Is an RTU?
Think of an RTU as a small but smart field computer. It sits right where the action is. It is near your instruments and equipment. It quietly collects data like pressure, temperature, or valve positions.
Once it picks up this information, it sends it to the SCADA system. When SCADA sends back a command, the RTU carries it out. Simple, reliable, and honestly… pretty impressive for a box of electronics.
—
How RTUs Connect at the Field Level
Input Signals
Analog Inputs: These are the smooth, continuous signals such as temperature, pressure, or flow (like 4–20 mA or 0–10 V).
Digital Inputs: These are more like yes/no signals — a pump is ON or OFF, an alarm is triggered or not.
Output Signals
Digital Outputs: Used for actions like starting or stopping pumps, or opening and closing valves.
Analog Outputs: These help send fine control signals to devices like control valve positioners.
—
Protocols Used to Talk to SCADA
Every RTU needs a language to communicate. A few common ones include:
MODBUS RTU: A simple, old-school serial protocol that still runs many legacy systems.
MODBUS TCP/IP: The modern, Ethernet-based version — faster and more flexible.
DNP3: Known for its reliability, event logging, and time-stamping — a favorite in utilities.
IEC 60870-5-101/104: Widely used in power transmission and distribution setups.
Each one has its own strengths, and engineers pick what fits the application best.
—
How SCADA Works With RTUs
Once the RTU sends data to the SCADA system, that’s where operators and engineers get the full picture. SCADA handles:
Real-time monitoring of process parameters
Logging and handling alarms (very helpful on a busy day!)
Trends and historical data for analysis
Issuing remote commands and running automation logic
It’s a smooth partnership — RTUs collect and act, while SCADA visualizes and supervises.
—
Most proximity sensors do not fail because they’re bad.
Most times they fail because of how they’re wired, grounded, or interpreted.

Here are the 5 silent killers I’ve seen on the field 👇🏽
1️⃣ Loose connections – Vibration loosens terminals, causing flickering inputs.
Seen it happen on a compressor skid. Tighten once, save hours of troubleshooting.
2️⃣ Cables too close to power lines – Induced noise creates false signals.
One wrong tray routing once stopped an entire conveyor system.
3️⃣ Poor grounding – Floating grounds = unstable readings.
Always ensure the PLC and sensors share one clean reference.
4️⃣ Moisture in junction boxes – moisture on junction box caused a false trip at a gas plant as result of transmitter not sensing the process.
Seal your boxes like your data depends on it — because it does.
5️⃣ Misreading wiring diagrams – Many mix up NPN and PNP.
One wrong assumption once kept a line down for 6 hours.
Understand the diagram before you touch the wire.
Sensors rarely lie.
It’s the wiring that tells stories.
🔧 Your turn:
What’s the strangest wiring issue you’ve ever faced on site?
♻️Repost in your networks. Sharing is caring.
Key Tags:
#Instrumentation #Instrument #Sensor #ProximitySensor #OilandGas
18 Malayalam Movie to Watch – Movies Inside 501
Kannur Squad
| Movie Name | Kannur Squad |
| Story/Direction | Muhammed Shafi/Roby Varghese Raj |
| Music | Sushin Shyam |
| Artist | Mammootty, Azees Nedumangad, Rony David Raj, Shabareesh Varma |
| Genre | Thriller/Action |
| Movie Available In | Disney+ Hotstar |
| Launguage | Malayalam, Tamil, Telungu, Kannada, Hindi |
OhOhm Shanthi Oshaanam
| Movie Name | Ohm Shanthi Oshaana |
| Story/Direction | Midhun Manuel Thomas/Jude Anthany Joseph |
| Music | Shaan Rahman |
| Artist | Nazriya Nazim, Nivin Pauly, Vineeth Sreenivasan, Renji Panicker, Aju Varghese |
| Genre | Romance/Comedy |
| Movie Available In | Disney+ Hotstar / Prime Video |
| Launguage | Malayalam |
Neru
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Mukundan Unni Associates
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Aattam
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Maheshinte Prathikaaram
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Iyobinte Pusthakam
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Ustad Hotel
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Ullozhukku
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Kumbalangi Nights
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Anweshippin Kandethum
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Kooman
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Kala
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Perumani
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Thinkalazhcha Nishchayam
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Thamaasha
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Manjummel Boys
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Pookkaalam
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Bgm Inside 201 – Top Five Coolest Bgm Ringtone Download Playlists-1
Soul of Doctor
| Music Name | Soul of Doctor |
| Music Director | Anirudh Ravichandran |
| Movie Name | Doctor |
| Director of the Movie | Nelson |
| Movie Genre | Comedy/Action |
| Movie Available In | Netflix |
Doctor is a movie of Nelson, with music by Anirudh Ravichander, that attained a new music culture (BGM). The Bgm of this movie adds a different flavor to this film. The movie, which is of action-comedy genre, has parts that are thrilling and make you laugh and music is responsible for the overall experience being great. Anirudh’s music, primarily, the Soul of Doctor is often praised for the electrifying feel it gives and the environment it conjures, a mood that fits in with the genre of the film. Available on the Netflix platform, Doctor is a film that not only has great direction and performances but also is an unforgettable one because of the BGM that comes in at the right moment of the film while streaming Netflix.
I’m Scared
| Music Name | I’m Scared |
| Music Director | Anirudh Ravichandran |
| Movie Name | Leo |
| Director of the Movie | Lokesh Kanagaraj |
| Movie Genre | Action/Thriller |
| Movie Available In | Netflix |
The racing named “I’m Scared” by *Leo* is the music that exposes Anirudh Ravichandran’s characteristic music style. *Leo*, directed by Lokesh Kanagaraj, is a world of cinema with a gripping narrative. It is a movie that keeps the audience on the edge of their seat due to the action/thriller genre. It is the easy option to watch Leo as it is part of the movie stock on Netflix; the movie unearth himself to a wide audience. The film’s Sales advisors and Director have played a significant role in the movie’s victory.
Rest in Peace
| Music Name | Rest in Peace |
| Music Director | Anirudh Ravichandran |
| Movie Name | Leo |
| Director of the Movie | Lokesh Kanagaraj |
| Movie Genre | Action/Thriller |
| Movie Available In | Netflix |
Anirudh Ravichandran’s composition “Rest in Peace” for the film *Leo* is one of his notable works. The spellbinding thriller helmed by Lokesh Kanagaraj attracted the audience with its goosebumps-provoking plot and intense sequences. The powerful music gives the movie’s most crucial moments extra emotions, thus, heightening the emotional satisfaction of the picture. If you want to watch *Leo* you can just go to Netflix and stream it. Anirudh’s score and Lokesh’s direction are working together to make an action/thriller that will be the feature of a great many next year.
Sighting Whistles
| Music Name | Sighting Whistle |
| Music Director | Harris Jayaraj |
| Movie Name | Ayan |
| Director of the Movie | K.V. Anandh |
| Movie Genre | Action/Thriller |
| Movie Available In | SunNXT |
Directed by K. V. Anandh, *Ayan* is an action thriller which is essentially an action part of the narrative with a lot of suspense and physicality. Harris Jayaraj, a popular composer, has earned this reputation by giving the hitlist “Ayan” its memorable “Sighting Whistle” track. The tracks are so well woven into the entirety of the film than can hardly tell the film without the songs. All of the songs in the movie totally belong where they are, the lyrics are spot on, and they initiate the emotional journey that drives the story. Moreover, listeners can watch *Ayan* as they are allowed to navigate SunNXT and its services. *Ayan* is the epitome of what an action-packed movie looks like with its thumping BGM (which means background music) and the unique soundtrack.
Ordinary Person
| Music Name | I’m Ordinary Person |
| Music Director | Anirudh Ravichandran |
| Movie Name | Leo |
| Director of the Movie | Lokesh Kanagaraj |
| Movie Genre | Action/Thriller |
| Movie Available In | Netflix |
Synopsis Leo, which includes a solid plot and emotional direction by Lokesh Kanagaraj, has made the movie a catch from the start the film LeoThe music, which has the song “I’m Ordinary Person”, this has seen Anirudh Ravichandran having a style that you can quickly notice in films on the rise and an overload of energy caused by the rest of the film is to the movie’s advantage. Leo provides action and thrill, keeping the audience on the edge of its seats with its fast and surprising episodes. The movie’s moving story along with the background music (BGM) which was special for it were brought to the world by Netflix which now holds a wider base of viewers in every corner of the world.
Top Ten Moto Vloggers in Tamilnadu
Top Ten Tamil YouTube Moto Vloggers -ModernPedia
Cherry Vlogs

Cherry Vlogs
Real Name :- SureshBabu
Date of Birth :- 03.10.1986
Cherry vlogs real name is Suresh Babu. His Date of birth is 03-10-1986. Cherry Vlogs Biography
Cherry Vlogs is Best Moto Vlogger in Tamilnadu. He doing 100+ Country World Ride. He is an Engineer. After Engineering he Continues his Passion on making Biking, Travel, MotoVlogs. And he had Two Channel Mainly Focused on Cherry Vlogs and the another one is Tagore cherry.
Twin Throttlers

TwinThrottlers
Real Name :- Vaasan
Date of Birth :- 29-june-2000
TwinThrottlers Real name is Vaasan. Vasan Date of birth is 29-06-2000. TTF Vasan Biography.
TTF Vasan is Famous Moto Vlogger. His Native is Coimbatore. He has biggest audience fanbase of youth Young Generation. He has Top most Subscribe count in Tamil Moto Vlogging and he has Two YouTube channel one named as Twin Throttlers and another One is Vaasan Enfielder. His Channel Got Peaked at the Ladak Moto Vlogging Series. After His Birthday Fans Meetup He got More Popular by Controversy.
Now TTF Vasan is Debut his film named Manjal Veeran.
Heart Racer RC

Heart Racer RC
Real Name :- Sathish
Date of Birth :- Nil
Heart Racer Rc Real name is Sathis. Heart Racer Rc Date of Birth is (Unknown). Heart Racer RC Biography.
He is Famous Moto Vlogger in Tamil. He is famous by Making Shorts Video. Now he is Doing Exploring Places By Moto vlogging.
Azarkettavan

Azar Kettavan
Real Name :- Azar
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Azarkettavan’s Real name is Azar. Azarkettavan’s date of birth is Unknown. Azarkettavan Biography.
Azarkettavan is Famous youtuber in Tamilnadu and his native place is Trichy. He has 3+ Highly Cost Bikes. He had Million+ subscribers Count
Content Illa Mamey

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Real Name:- Ajees
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Content illa Mamey Real name is Ajees. Content illa Mamet Ajees Date of Birth is (Unknown). Content illa Mamey Ajees Biography.
He is Famous Tamil Youtuber by Making Walk Lift From Chennai to Ladak and make World Record. And He Now doing Moto Vlogs, Walk and Lift from Chennai to Singapore. Like more Life style Vlogs.
Enowaytion Plus

Enowation Plus
Real Name :- Vijay Immanuel
Date of Birth :- NIL
Enowation plus Real name is Vijay Immanuel. Enowation plus Vijay date of birth is Unknown.
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Enowation plus is Famous Youtuber. He is doing Bike rides and he is big fan of Thalapathy,. So he do Movie Review and Thalapathy vijay Movie Updates.
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Real Name :- Arun Parthipan
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Arun Parthipan is a Motto vlogger and he is a Certified Trainer and Life coach.
Number Plate

Number plate
Real Name :- Gowthaman
Date of Birth :- NIL
Number plate Real name is Gowthaman. Number plate Date of Birth is (Unknown). Black Buddy Tamil Biography.
Number plate is Motto Vlogger in Tamil community. An Regular IT Guy Loves to Explore the world by Motorcycle
Nitish Rider

Real Name :- Nithis R
Date of Birth :- NIL
Nithish Rider Real name is Nithish R.
Nithish Rider Date of Birth is (Unknown).
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Nithis rider is famous Moto Vlogger.He called his as NRF(NithisRiderFamily).
3j Auto Expert தமிழ்

Auto Expert Tamil Real name is Jai.
Jai Date of Birth is (Unknown).
3j Auto Expert Tamil Jai Biography.
Jai is famous Moto Vlogger and do a Review of All types of Bikes.Jai is well known for Bike Reviews
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