Butterfly Valve
Butterfly Valve & Actuators
R.A. Enterprises supplies butterfly valves and actuators for cement silos, fly ash silos, hoppers and dry bulk material handling systems. These valves are used at silo and hopper discharge points to provide reliable material shut-off and controlled discharge of cement, fly ash and other compatible dry powders. Butterfly valves can be supplied with manual or pneumatic actuator arrangements depending on plant operating and automation requirements.
Function / Operating Principle
A rotating disc opens or closes the material passage. The valve can be operated manually or by a suitable actuator to provide remote or automated opening and closing.
Construction
- Valve body with internal rotating disc
- Shaft and sealing arrangement
- Flanged or compatible mounting interface
- Manual, pneumatic or electric actuation options
- Limit switches and solenoid arrangements where required
Key Features
- Compact shut-off valve for bulk solids
- Quick quarter-turn operation
- Suitable for automation
- Multiple actuation options
- Application-specific material and size selection
Design & Maintenance
Valve size, body construction, seal arrangement and actuator torque should be selected according to the actual material and service conditions. Periodic inspection of disc movement, seals, actuator and fasteners is recommended.
System Integration
- Cement and fly ash silos
- Screw conveyor inlets
- Weigh hoppers
- Dust collection hoppers
- Batching plants
Applications
- Silo outlet isolation
- Powder hopper discharge
- Cement feeding systems
- Fly ash handling systems
- Bulk material process lines
Benefits
- Compact installation
- Fast opening and closing
- Manual or automated operation
- Suitable for integration with plant controls
Why Choose R.A. Enterprises?
R.A. Enterprises supplies butterfly valves, actuators and silo accessories from Pune, Maharashtra with application-based selection and supply across India.
Technical Specification – Butterfly Valve & Actuators
| Parameter | Technical Specification |
|---|---|
| Valve Type | Butterfly valve for compatible bulk material applications |
| Operation | Quarter-turn |
| Actuation | Manual / pneumatic / electric as required |
| Valve Size | As per application |
| Body Material | Model dependent |
| Disc Material | Model dependent |
| Seal | Selected according to application |
| Mounting | Compatible flange / equipment interface |
| Accessories | Limit switches, solenoid valves or controls where required |
Typical Applications
- Silo discharge
- Hopper outlets
- Screw conveyors
- Cement feeding
- Powder handling
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Frequently Asked Questions
What is a silo butterfly valve?
A silo butterfly valve is a compact quarter-turn valve commonly fitted at a silo or hopper outlet to isolate or control the discharge path of compatible dry bulk material.
How does a butterfly valve work?
The internal disc rotates around its shaft. When aligned with the flow path the passage opens, and when rotated across the passage it closes the material flow path.
Where are butterfly valves used in silos?
They are commonly installed below silo cones, hoppers, weigh bins and at interfaces between storage equipment and screw conveyors or other material handling equipment.
Can a butterfly valve be pneumatically operated?
Yes. A compatible pneumatic actuator can provide remote opening and closing when appropriate compressed-air controls, solenoid valves and limit switches are included in the system.
Can an electric actuator be used?
Electric actuation may be used where required. The actuator must be selected for the valve torque requirement, available electrical supply, duty cycle and plant control system.
Can butterfly valves be manually operated?
Yes. Manual lever or gearbox arrangements may be used for applications where remote or automatic operation is not required.
Are butterfly valves suitable for cement?
Properly selected butterfly valves are widely used in cement handling systems. Valve size, body, disc and seal construction should be selected for the actual material and operating conditions.
Can they be used for fly ash?
Suitable designs may be used for fly ash and other compatible powders. Fine abrasive or difficult materials require appropriate consideration of the sealing and wear arrangement.
How do I choose the correct valve size?
The valve should match the silo outlet, hopper connection or process equipment interface while also satisfying the required material flow rate and installation arrangement.
What is a butterfly valve actuator?
An actuator provides the mechanical torque required to rotate the butterfly valve shaft. Common actuator arrangements include pneumatic and electric operation.
What are limit switches used for?
Limit switches provide electrical confirmation of valve position, such as open or closed status, to the control panel or automation system.
What maintenance is required?
Periodic checks should include disc movement, seals, fasteners, actuator condition, air or electrical connections and position feedback devices where fitted.
Can an existing manual valve be automated?
In some cases a compatible actuator can be retrofitted. Shaft interface, mounting dimensions, valve condition and required actuator torque must first be verified.
Do you supply butterfly valves and actuators in Pune?
R.A. Enterprises supplies butterfly valves, actuators and associated silo accessories from Pune, Maharashtra for industrial powder and bulk-material handling systems.
Can you supply butterfly valves across India?
Yes. R.A. Enterprises can supply selected butterfly valves and actuators for industrial projects across India according to the approved application and specification.