Question:
Pneumatically operated 1st stage valve in homogenizer requires which one of the following for its operation?
Pneumatically operated 1st stage valve in homogenizer requires which one of the following for its operation?
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Homogenizer Control Systems: Pneumatic homogenizing valves use an AIR PRESSURE ACTUATOR to apply precise, automated hydraulic force onto the valve seat.
Updated On: Sep 15, 2026
- Air cylinder
- Air pressure actuator
- Supply air pressure reducing valve
- Solenoid valve in air supply
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
Automated pneumatic homogenizer pressure control: modern dairy homogenizers utilize a high-thrust Air Pressure Actuator (pneumatic diaphragm/piston actuator) to exert continuous, controlled hydraulic force onto the first-stage homogenizing valve rod.
Key Formula or Approach:
\[ F_{\text{valve}} = P_{\text{air}} \times A_{\text{actuator}} \quad \implies \quad \mathbf{Air \text{ } Pressure \text{ } Actuator \text{ maintains constant 1st stage pressure}} \]
Step 2: Detailed Explanation:
In dairy automation and modern high-pressure homogenizer design:
- In traditional manual homogenizers, valve pressure was applied via a heavy mechanical handwheel spring.
- In modern automated CIP homogenizers:
1. The first-stage homogenizing valve is loaded pneumatically using an Air Pressure Actuator (Pneumatic Diaphragm Piston Actuator) (B).
2. The actuator receives a proportional compressed air control signal ($0.2 - 6\text{ bar}$) from the plant PLC and multiplies this force across a large diaphragm area to exert tons of linear force onto the tungsten carbide valve rod.
3. This maintains precise, instantaneous, drift-free homogenizing pressure ($150 - 200\text{ bar}$) and allows instantaneous pressure release during automated CIP cleaning.
Step 3: Final Answer:
Hence, pneumatically operated 1st stage valve requires an Air pressure actuator, matching option (B).
Automated pneumatic homogenizer pressure control: modern dairy homogenizers utilize a high-thrust Air Pressure Actuator (pneumatic diaphragm/piston actuator) to exert continuous, controlled hydraulic force onto the first-stage homogenizing valve rod.
Key Formula or Approach:
\[ F_{\text{valve}} = P_{\text{air}} \times A_{\text{actuator}} \quad \implies \quad \mathbf{Air \text{ } Pressure \text{ } Actuator \text{ maintains constant 1st stage pressure}} \]
Step 2: Detailed Explanation:
In dairy automation and modern high-pressure homogenizer design:
- In traditional manual homogenizers, valve pressure was applied via a heavy mechanical handwheel spring.
- In modern automated CIP homogenizers:
1. The first-stage homogenizing valve is loaded pneumatically using an Air Pressure Actuator (Pneumatic Diaphragm Piston Actuator) (B).
2. The actuator receives a proportional compressed air control signal ($0.2 - 6\text{ bar}$) from the plant PLC and multiplies this force across a large diaphragm area to exert tons of linear force onto the tungsten carbide valve rod.
3. This maintains precise, instantaneous, drift-free homogenizing pressure ($150 - 200\text{ bar}$) and allows instantaneous pressure release during automated CIP cleaning.
Step 3: Final Answer:
Hence, pneumatically operated 1st stage valve requires an Air pressure actuator, matching option (B).
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