A DWYER MAGNEHELIC DIFFERENTIAL PRESSURE GAUGE on a Coffee Roaster is Used to Measure and Monitor The Static Pressure and Airflow Inside The Roasting Drum. It Helps Maintain Roasting Consistency, Prevent Drum Blockages, And Ensure Safe Venting.
Here is What That Gauge is Specifically Doing On The Roaster:
1. Measuring Airflow and Vacuum (Draft)Most Drum Roasters Use An Exhaust Fan to Draw Hot Air And Chaff Away From The Beans, Creating a Negative Pressure (Vacuum) Inside The Drum. The DWYER MAGNEHELIC DIFFERENTIAL PRESSURE GAUGE Connects Via Silicone Tubing To a Port in The Neck of The Roaster to Read This Negative Pressure in Unit like MM H₂O or Pascals (Pa).
2. Preventing Clogging and Drift As You Roast, Chaff, Oils, And Particulate Matter Build up in The Exhaust Piping And Cyclone. This Buildup Creates Airflow Resistance.
The Problem: If Airflow Resistance Increases, Less Heat is Transferred To The Coffee Beans And The Roast Profile Is Compromised.
The Gauge: By Tracking The Pressure Differential, You Know Exactly When Your Airflow is Dropping So You Can Clean The Exhaust.
3. Profile Reproduction Consistent Air Flow Equals Consistent Roasting. Instead of Blindly Quessing The Exhaust Fan’s Setting, The Pressure Gauge Provides Hard, Quantifiable Data. If a Past Roast Was Exceptional, You Can Adjust The Fan Damper Until The Pressure Gauge Reads The Exact Target Differential For That Specific Recipe.
The Pressure Test Outlet DUMBO Is Used For The Connection Of Air Pressure Testing Devices Inside The AHU. Applied Through The Panel Or Door, It Connects The Rubber Pipes Normally Used By The Measuring Instruments. The Shape At 90° Allows The External Pipe To Remain Adjacent To The Panel, Avoiding Any Possible Obstructions Or Accidental Disconnection.
Used For The Connection Of Air Pressure Testing Devices Inside The AHU
The Shape At 90° Allows The External Pipe To Remain Adjacent To The Panel, Avoiding Any Possible Obstructions Or Accidental Disconnection
Nylon Static Pressure Port – envirotechindustrialproducts
The Pressure Test Outlet DUMBO Is Used For The Connection Of Air Pressure Testing Devices Inside The AHU. Applied Through The Panel Or Door, It Connects The Rubber Pipes Normally Used By The Measuring Instruments. The Shape At 90° Allows The External Pipe To Remain Adjacent To The Panel, Avoiding Any Possible Obstructions Or Accidental Disconnection.Used For The Connection Of Air Pressure Testing Devices Inside The AHUThe Shape At 90° Allows The External Pipe To Remain Adjacent To The Panel, Avoiding Any Possible Obstructions Or Accidental Disconnection.
DOWNLOAD TECHNICAL DATASHEET
CODICE / CODE
DUMB0.0000
MATERIALE / MATERIAL
NYLON+FIBRA DI VETRONYLON+FIBERGLASS
TIPO / TYPE
PA6 FV20%
ACCESSORI / ACCESSORIES
CON TAPPO / WITH PLUG
PCS / BOX
200
Additional Information:
Item Code:Nylon Static Pressure Port – envirotechindustrialproducts
The SS Pressure Knob is Designed For Use With Differential Pressure Gauges in HVAC, Clean Room, AHU, and Ventilation Systems. Manufactured from High-Quality Stainless Steel, it Provides Reliable Pressure Sensing And Long-Lasting Performance In Industrial Environments.
Features:
Made From High-Quality Stainless Steel (SS)
Corrosion And Rust Resistant Construction
Suitable For Positive, Negative, and Differential Pressure Measurement
Easy Installation and Maintenance
Durable and Long Service Life
Compatible With Flexible Tubing Connections
Provides Accurate Pressure Sampling For Monitoring Systems
AHU Unit Nozzle is a Specially Designed Pressure Test Outlet Used in Air Handling Units (AHU)For Measuring Differential Pressure Across Filters, Fans, And Clean Room Applications. It Provides An Easy Connection Point For Magnehelic Gauges, Manometers, And Differential Pressure Transmitters Through Flexible Tubing. The 90° Design Allows The Tube to Remain Close To The Panel, Reducing The Risk of Accidental Disconnection And Damage. It is Manufactured From High-Quality Engineering Plastic For Long Service Life And Reliable Performance in HVAC Systems.
Features:
High Quality Black Engineering Plastic Construction
90° Elbow Design For Easy Tubing Connection
Lightweight, Durable And Corrosion Resistant
Easy Installation on AHU Panels And Doors
Suitable For Positive, Negative And Differential Pressure Measurement
Leak-Proof And Maintenance Free Design
Compatible With Magnehelic Gauges, Manometers and Pressure Transmitters
Applications:
Air Handling Units (AHU)
HVAC Systems
Clean Rooms
Pharmaceutical Industries
Hospitals
Food Processing Plants
Filter Monitoring Systems
Dust Collection Systems
Technical Specifications:
Material: Engineering Plastic / Nylon
Color: Black
Connection Size: 6 MM Tube Connection
Mounting Type: Panel Mount
Application: Pressure Testing and Monitoring
Country of Origin: Made in India 🇮🇳
The AHU Unit Nozzle is Widely Used For Accurate Pressure Monitoring in HVAC And Filtration Systems, Ensuring Efficient Operation And Timely Filter Replacement.
PVC Components Air Pressure Check Nozzle is a High-Quality Air Pressure Sensing Nozzle Designed for Accurate Measurement of Differential Pressure, Static Pressure, And Airflow in HVAC, Clean Room, And Industrial Ventilation Systems. Manufactured From Durable PVC Material, it Offers Excellent Resistance To Corrosion, Moisture, And Chemicals, Ensuring Long Service Life And Reliable Performance. Features:
Made From High-Quality PVC material.
Corrosion And Chemical Resistant Construction.
Lightweight And Easy To Install.
Suitable For Positive, Negative, And Differential Pressure Measurement.
Flange Mounting Design For Secure Installation.
Provides Accurate Air Pressure Sensing.
Low Maintenance And Long Operational Life.
Applications:
HVAC Systems
AHU (Air Handling Units)
Clean Rooms
Dust Collection Systems
Air Filters Monitoring
Ventilation and Exhaust Systems
Pharmaceutical Industries
Food Processing Industries
Industrial Airflow Monitoring
Specifications:
Material: PVC
Connection Type: Air Pressure Check Nozzle
Mounting: Flange Type with Two Fixing Holes
Application: Air Pressure and Differential Pressure Measurement
Color: Black
Country of Origin: Made in India
ENVIRO TECH INDUSTRIAL PRODUCTS (Since 1995) Supplies High-Quality PVC Air Pressure Check Nozzles For Industrial And HVAC Applications With Reliable Performance And Competitive Pricing.
Manufactured From Premium Grade SS 304 Stainless Steel
Corrosion Resistant And Rust-Proof Construction
Compact And Robust Design
Easy Installation On Ducts And AHU Panels
Accurate Pressure Sensing Performance
Suitable For Positive, Negative And Differential Pressure Measurement
Long Service Life With Minimal Maintenance
Compatible With Magnehelic Gauges and Differential Pressure Instruments.
Technical Specifications:
Material: SS 304 Stainless Steel
Connection Type: Hose Barb / Tube Connection
Thread Connection: Suitable For Standard Panel Mounting
Finish: Polished Stainless Steel
Media: Air and Non-Corrosive Gases
Application: Pressure Sensing And Air Velocity Monitoring
Country of Origin: Made in India.
Applications:
HVAC Systems
AHU and FCU Units
Clean Rooms
Pharmaceutical Industries
Hospitals and Operation Theatres
HEPA Filter Monitoring
Duct Static Pressure Measurement
Fan and Blower Pressure Monitoring
Differential Pressure Measurement Systems.
Product Identification From Your Image:
The Item Shown In Your Photo Appears To Be An SS 304 Pressure Pickup Nozzle / Magnehelic Gauge Nozzle With Hose Connection For Pneumatic Tubing. It is Commonly Installed On AHU Ducts, Filter Housings, And Clean Room Panels To Connect Tubing Between The Pressure Source And a Magnehelic Differential Pressure Gauge.
Brass Silver Chrome Pressure Probe is a Precision-Engineered Pressure Sensing Accessory Manufactured From High-Quality Brass Material With Chrome Plating Finish For Excellent Corrosion Resistance, Durability, And Long Service Life.
These Probes Are Widely Used For Air Pressure Measurement, Differential Pressure Monitoring, Airflow Balancing, And HVAC Applications. Product Features:
Manufactured From Premium Quality Brass with Chrome Plating
High Strength And Corrosion Resistant Construction
Smooth Surface Finish For Long-Lasting Performance
Suitable For Positive, Negative And Differential Pressure Measurement
Easy Installation With Hose Connection
Accurate Pressure Sensing Through Multi-Hole Probe Design
ENVIRO TECH INDUSTRIAL PRODUCTS (Since 1995) Supplier of Pressure Probes, Differential Pressure Gauges, Magnehelic Gauges, Pressure Transmitters and HVAC Accessories.Your File Library Is Full. New Files Won’t Be Saved To Your Library, But You Can Still Use Them In This Chat. To Store New Files For Later, Free Up Space Or Upgrade Your Storage.