ANSI Class 300 Flanged Ball Valve is made of stainless steel and carbon steel. Large diameter can be equipped with Gear Operated. The upper flange conforms to ISO 5211 standard, so it can also become a pneumatic flanged ball valve and an electric flanged ball valve.
Stainless Steel ANSI Class 300 Flange Ball Valve Structure diagram
ANSI Class 300 Ball Valve Construction Materials
The ball valve includes a pressure-containing body, rotating ball, stem, seating elements and stem seals. The material combinations below identify the construction families and components described for this product. Individual component grades depend on the supplied assembly configuration.
| Component | Material or construction identified |
|---|---|
| Pressure-containing body | Cast carbon steel or cast stainless steel construction; WCB and CF8 are listed body grades |
| Ball | 304 / 316 stainless-steel material options described in the product information |
| Stem | 304 / 316 stainless-steel material options described in the product information |
| Seat | PTFE seating configuration |
| Stem packing | PTFE packing configuration |
For assembly replacement parts and pressure-boundary material traceability, use the component schedule corresponding to the supplied valve drawing and selected configuration. The valve pressure-temperature capability must be evaluated with the selected body and seat materials.
Chinese Flanged ball valve made in China-Product advantages
- Confirm the required pressure class for the actual ordered configuration.
- Specify nominal size and obtain the corresponding installation drawing.
- Confirm end connections and mating dimensions for the selected model.
- Use the pressure-temperature limits approved for the actual body, seat and seals.
- Identify manual, geared or requested automated operation in the quotation.
Forged F304 Class 300 Ball Valve
ANSI Class 300 Flanged Ball Valve explain
The stainless steel Class 300 ball valve body is mainly composed of two-piece casting, the middle seat material can be selected from PTFE and PPL, and the valve has a full bore.
ASME Class 300 Mating-Flange Connection Reference
ASME B16.5 Class 300 flanged connections use a different flange diameter and bolt-hole pattern from Class 150. The dimensions below are standard mating-flange references, not the overall dimensions of a complete valve assembly.
| NPS | Nominal size | Flange outside diameter D (mm) | Bolt circle K (mm) | Bolt holes |
|---|---|---|---|---|
| 2" | DN50 | 165 | 127.0 | 8 × 19 mm |
| 3" | DN80 | 210 | 168.1 | 8 × 22 mm |
| 4" | DN100 | 254 | 200.2 | 8 × 22 mm |
| 6" | DN150 | 318 | 269.7 | 12 × 22 mm |
These nominal flange reference dimensions are based on published ASME B16.5 Class 300 connection data. The required project standard edition, flange facing and bolt arrangement must be applied. Valve face-to-face length, overall height and operator envelope are separate assembly dimensions established by the selected valve drawing.
Design Standard: ASME B 16.34
Construction Length: ASME B 16.10
Flange Standard: ASME B16.5
Inspection and Testing: API 598
Class 300 Flanged Ball Valve Selection Data
- Pressure class: ASME Class 300.
- End connection: Flanged connection to the applicable ASME B16.5 Class 300 requirements.
- Valve operation: Manual handle or worm-gear operation as configured for the selected valve.
- Body construction: Cast carbon steel or cast stainless steel, with the actual material grade established for the supplied assembly.
- Pressure-temperature capability: Determined by the selected body, seat and stem-sealing materials and applicable valve rating.
Features
1. The valve stem has an anti-static setting
2. The valve stem is designed with an anti-disengagement device.
3. There is a pressure relief hole design on the ball groove of the steel ball.
4. Adopt ISO 5211 direct installation actuator platform design.
Product Overview
For a Class 300 order, confirm the matching flange and face-to-face dimensions, body and trim, seat and seal materials and operating method. A custom request should identify what differs from the illustrated configuration so the proposal and approved drawing remain unambiguous.
Selection and Ordering Notes
- State whether the order is for the illustrated Class 300 configuration or a specified custom alternative.
- Provide medium, design and operating conditions and the required material and seat specification.
- Check the selected drawing and dimensions instead of assuming one series table covers every configuration.
- Confirm manual or geared operation, mounting interfaces and any automation requirements.
Related information: Compare the ball-valve range | Valve technical guidance | About Trekre.
Frequently Asked Questions
Does the image show the Class 300 configuration?
Yes. Class 300 is the confirmed illustrated configuration. Other requested configurations must be separately identified and approved in the quotation.
Can I request a different pressure class or operating arrangement?
Customization can be requested. Provide the required class, connection, materials, process conditions and operating method; availability and the final design must be confirmed for the order.
Can I apply a broad series temperature or size range to the pictured valve?
Use the approved specification and drawing for the actual assembly. A general series range does not establish that every seat, material or illustrated configuration has the same limits.