Electric-Actuated Flange Type Telescopic Butterfly Valve
The Electric-Actuated Flange Type Telescopic Butterfly Valve is a project-built industrial valve for engineers who need a clear selection path before issuing a purchase inquiry. This page focuses on working principle, configuration checks, application fit and documentation requirements. Final dimensions, trim materials, actuator torque, seat design and test standards should be confirmed against the selected model, datasheet and approved drawing.
Engineering Application
It is commonly considered for water supply, plant utility lines, cooling water, non-critical process water and other pipeline systems where remote operation is needed. The telescopic section can help absorb installation tolerance or pipeline movement, but allowable movement must be checked against the approved drawing instead of assumed from a generic product page.
- Electric actuator selection should be based on valve torque, service factor, power supply, control signal and site enclosure requirement.
- The valve should be installed with sufficient straight pipe, access space and support so the telescopic section is not used as a pipe alignment tool.
- Seat material, disc material and body coating should be selected according to media chemistry and operating temperature confirmed by the project.
- Limit switches, manual override, local indicator and control feedback should be specified before quotation when remote automation is required.
Electric-Actuated Flange Type Telescopic Butterfly Valve Selection Notes
The Electric-Actuated Flange Type Telescopic Butterfly Valve should be selected as an engineered valve assembly, not as a generic butterfly valve. When Vcore Valve reviews a request for an Electric-Actuated Flange Type Telescopic Butterfly Valve, the key checks are actuator torque, flange compatibility, telescopic allowance, sealing material and installation support.
For an automated pipeline, the Electric-Actuated Flange Type Telescopic Butterfly Valve can reduce manual operation while keeping the valve body accessible for inspection. Final actuator sizing and telescopic movement are confirmed only after the project data is reviewed.
Product Configuration
| Selection Item | Engineering Check | What Vcore Valve Confirms Before Quotation |
|---|---|---|
| Body connection | Flanged butterfly valve with telescopic compensation section | Flange drilling, face-to-face requirement, gasket contact and installation drawing |
| Actuator | Electric quarter-turn actuator | Voltage, control mode, open-close or modulating duty, enclosure and feedback signal |
| Sealing pair | Soft seat or project-specified sealing arrangement | Media, temperature, expected shutoff class and compatibility |
| Operation mode | Remote electric operation with manual override if required | Control logic, fail position and site accessibility |
| Documentation | Drawing and test records prepared per order | Datasheet, inspection plan and export packing requirement |
Technical Specifications
| Parameter | Selection Guidance | Confirmation Needed |
|---|---|---|
| Nominal size | Project-specific; not fixed here | Pipeline size and flange standard from drawing |
| Pressure class | Confirmed by selected body and flange design | Design pressure, test pressure and governing standard |
| Temperature range | Depends on seat, body and actuator environment | Normal and upset operating temperature |
| Media | Clean water or compatible process media after review | Fluid name, solids content, corrosion risk and flow direction |
| Actuator signal | On-off or modulating as required | Power supply, command signal and feedback signal |
Design Comparison
| Option | Best Fit | Selection Note |
|---|---|---|
| Standard butterfly valve | Simple shutoff where pipe movement is controlled elsewhere | Lower complexity, but no integrated telescopic compensation |
| Telescopic butterfly valve | Pipelines needing installation tolerance or axial compensation | Movement allowance must be verified by drawing |
| Electric actuated type | Remote operation, frequent operation or automation loop | Requires torque and electrical specification confirmation |
Pre-Order Checklist
| Checklist Item | Why It Matters | Required From Customer |
|---|---|---|
| Pipeline drawing | Prevents flange and face-to-face mismatch | GA drawing or dimensional sketch |
| Control requirement | Avoids wrong actuator selection | Voltage, signal and fail-position details |
| Media condition | Prevents seat or coating mismatch | Media, concentration, solids and temperature |
| Installation space | Protects actuator and telescopic section | Clearance, support and maintenance access |
| Inspection package | Aligns QC expectations before production | Required certificates, test records and packing photos |
Quality and Documentation
For production orders, Vcore Valve can prepare inspection records, material traceability documents, pressure test records, packing photos and export documentation according to the agreed purchase specification. The exact document package depends on the valve model, order quantity and project requirements.
For broader valve terminology, engineers may also reference the Valve Manufacturers Association valve basics. For matched valve selection support, compare this product with other Vcore Valve product options.
FAQ
Can the telescopic section absorb all pipeline movement?
No. The allowable movement must be confirmed from the selected model drawing. It should not replace proper pipe support or compensate for major misalignment.
Can this valve be supplied with modulating electric control?
Yes, when the actuator, torque margin, control signal and duty cycle are specified during selection.
Why are size and pressure ratings not fixed on this page?
They depend on the selected model, flange standard, seat material and approved datasheet, so Vcore Valve confirms them during quotation.
What information is needed for a quotation?
Pipeline size, flange standard, media, pressure, temperature, actuator voltage, control mode and any inspection document requirements are needed.