What Information Is Needed for a Rotary Valve Quotation?
Sep 04, 2026|
View:49Answer-First
A rotary valve quotation usually requires the product model or drawing, handled material, bulk density, required capacity, working temperature, pressure or negative pressure condition, material requirement, drive requirement, quantity and trade term. These details help the manufacturer select the valve type, size, rotor structure, body material, sealing design, motor and connection type.
Providing complete working condition information reduces back-and-forth communication and helps avoid selecting a valve that does not match the material or system.
Rotary Valve Quotation Checklist
| Information | Why It Matters |
|---|---|
| Product model or drawing | Helps match existing equipment or confirm custom dimensions. |
| Required capacity | Affects valve size, rotor volume and speed. |
| Material handled | Determines material compatibility, flow behavior and possible special design. |
| Bulk density | Helps calculate valve capacity and feeding performance. |
| Particle size | Affects clearance, rotor structure and discharge behavior. |
| Working temperature | Affects material selection, sealing and drive configuration. |
| Pressure condition | Affects airlock performance, leakage and sealing design. |
| Material requirement | Determines cast iron, carbon steel, stainless steel or coated options. |
| Drive requirement | Helps select motor, reducer and speed requirement. |
| Quantity | Affects production planning and quotation scope. |
| Trade term | Clarifies EXW, FOB, CIF or other delivery requirements. |
| Destination country | Helps estimate export packing, logistics and documentation requirements. |
Product Model or Drawing
If you already have a drawing, old valve model or installation layout, send it with the inquiry. A drawing helps confirm inlet and outlet dimensions, flange hole positions, installation height and connection requirements.
If you do not have a drawing, provide photos of the installation position and the upstream and downstream equipment information.
Material Handled
The handled material is one of the most important details. A valve used for dry cement powder may require a different design from a valve used for plastic pellets, chemical powder, sticky powder or high-temperature material.
Useful material details:
- Material name
- Bulk density
- Particle size
- Moisture
- Flowability
- Abrasiveness
- Corrosiveness
- Temperature
Required Capacity
Capacity can be provided in kg/h, t/h, m3/h or another clear unit. If the capacity is not fixed, provide the normal working range and maximum required capacity.
Avoid selecting a rotary valve only by appearance. The valve must match the required throughput and material characteristics.
Pressure or Negative Pressure Condition
For airlock feeding and pneumatic conveying, pressure information is important. The manufacturer needs to know whether the valve works under positive pressure, negative pressure or atmospheric discharge.
If the system is pneumatic conveying, provide:
- Positive or negative pressure
- Pipeline size
- Conveying distance if available
- Material feeding point
- System layout if available
Material and Surface Requirement
Valve body material and surface treatment should match the material handled and working condition.
Common options include:
- Cast iron
- Carbon steel
- Stainless steel
- PTFE coating
- Tungsten carbide coating
- Other customized material or surface treatment
Do not choose material only by price. Corrosion, abrasion, hygiene and temperature may affect the final choice.
Example Inquiry Format
Use this format when contacting FUWEI:
Product needed:
Drawing or model:
Material handled:
Bulk density:
Particle size:
Required capacity:
Working temperature:
Pressure condition:
Material requirement:
Drive requirement:
Connection requirement:
Quantity:
Trade term:
Destination country:
Additional notes:
FAQ
Can I get a quotation without a drawing?
Yes, but the quotation may require confirmation after more details are provided. If there is no drawing, send material data, capacity, connection size and photos of the installation position.
Why is bulk density needed?
Bulk density helps estimate how much material the rotary valve can discharge at a given rotor volume and speed.
Why is pressure condition important?
Pressure condition affects air leakage, sealing structure, rotor clearance and whether the valve is suitable for pneumatic conveying or airlock feeding.
What trade terms can be provided?
Customers can specify trade terms such as EXW, FOB or CIF. The final available terms should be confirmed during quotation.
Recommended Internal Links
- Home: https://www.czfwvalves.com/
- Cast Iron Rotary Airlock Valve: https://www.czfwvalves.com/Rotary-Airlock-Feeder-Discharge-Valve-Feeding-System-Cast-Iron-Accept-Customization.html
- Stainless Steel Rotary Airlock Valve: https://www.czfwvalves.com/Rotating-Discharge-Control-Discharge-Flow-Stainless-Steel-Valve-Acceptable-Customization.html
- Quick Disassembly Rotary Valve: https://www.czfwvalves.com/Quick-Disassembly-and-Cleaning-Rotary-Discharge-Valve.html
- Contact: https://www.czfwvalves.com/contactus.html
Request a Quotation
Send your product model or drawing, required capacity, material handled, bulk density, working temperature, pressure condition, material requirement, drive requirement, quantity and trade term. FUWEI will review the working condition and provide rotary valve quotation support.
