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| Rotary Valve or Air Lock Valve |
A rotary valve is a type of valve in which the rotation of a passage or passages in a transverse plug regulates the flow of liquid or gas through the attached pipes. The common stopcock is the simplest form of rotary valve.
Despite its simplicity it offers several functional uses:-
* Control product flow rate to the required rate (fixed or variable)
* Maintain a gas pressure differential between the inlet & outlet (airlock)
* Act as an explosion barrier
* Act as a Flame Barrier
* Act as a process isolator / barrier
Typical Design / Feature Considerations
1. Housing Body & End Covers
2. Body Design
3. Inline Inlets
4. Offset Inlets
5. Housing End Covers
6. Blowing Seals
7. Entrainment Boxes
8. Rotors
Replaceable Blades
These are by nature adjustable on assembly but should not be considered as being supplied to be
able to adjust for wear as wear is never even, neither is it confined to the blades. It is however an
economic way of introducing alternative materials of construction that may be required to satisfy
the duty.
Common examples include
• Hardened steel; or alloy steel; or hard faced: for abrasion resistance
• Scraper: to control product build-up on the housing bore and end cover faces when
necessary
• Flexible: (usually polyurethane or natural rubber) for fibrous or products containing large
non friable particles
• Plastic: product compatible or non-stick
• Bronze or bronze tipped: for ultra close clearances
9. Shaft Sealing
10. Bearings
11. Drive Arrangements
12. Accessories
Common additions to rotary valves include:
• Positive Overload protection (shear pin or proprietary torque limiting devices)
• Non Rotation detection
• Speed monitors
• Safety switches on Easy Clean valves
• Variable speed controls
• Pressure regulators and flow meters for air purge seals
• Rotor pocket purging equipment
Applications:
Food & Pharmaceutical
We provide customized rotary valve as per requirement of customer.
Contact -
VTech Solutions
vtechsolutions2020@gmail.com
info@vtechsolutionsindia.com
9922955643
Pune, Maharashtra, india
