DN40-PN16-RF Pneumatic Y Pattern Bellows Seal Globe Valve

Technical Datasheet

Product Name: Pneumatic Y Pattern Bellows Seal Globe Valve
Model: DN40-PN16-RF Pneumatic Y Pattern Bellows Seal Globe Valve

1. General Information

2. Technical Specifications

3. Pneumatic Actuator Specifications

4. Main Material of Parts

5. Main Dimensions & Connection Data (Unit: mm)

*Note: Flange dimensions conform to ASME B16.5 (Class 150) or EN 1092-1 (PN16).*

Note: Dimensions above are typical. Overall height increases significantly with pneumatic actuator. Final dimensions should be based on approved manufacturer drawings.

6. Applicable Design Standards

• Valve Design & Manufacture: BS 1873 / API 623 / ASME B16.34

• Face-to-Face Dimensions: ASME B16.10 / EN 558 (Y pattern specific)

• Flange Dimensions: ASME B16.5 (Class 150) / EN 1092-1 (PN16)

• Pressure-Temperature Rating: ASME B16.34 / EN 1092-1

• Inspection & Testing: API 598 / EN 12266

• Bellows Design: ISO 15761 / BS 6364

• Actuator Mounting: ISO 5211 / VDI/VDE 3845

• Fugitive Emissions: ISO 15848-1 (Optional)

• Control Valve Testing: IEC 60534 / FCI 70-2 (for modulating service)

7. Product Features

1. Y Pattern (Oblique) Design: Angled seat and stem design significantly reduces flow resistance (lower pressure drop) compared to standard globe valves, ideal for applications requiring continuous flow with throttling capability.

2. Bellows Seal: Fully welded stainless steel bellows provides a hermetic seal, eliminating fugitive emissions and ensuring zero stem leakage—critical for steam, thermal oil, and hazardous media applications.

3. Pneumatic Actuation: Enables remote, automated operation for on-off or modulating control, improving system efficiency and safety.

4. Fail-Safe Operation (Spring Return): Spring-return actuators ensure valve returns to a safe position (fail-open or fail-closed) upon loss of air supply, providing critical safety protection.

5. Raised Face Flanged Ends: Standard RF flanges ensure reliable, leak-free connections compatible with ASME or EN piping systems.

6. PN16 Pressure Rating: Suitable for low to medium pressure applications commonly found in steam distribution, HVAC, and industrial processing.

7. Hard-Faced Trim (Optional): Stellite hard-facing on seat and disc surfaces provides excellent wear resistance and tight shut-off for demanding services.

8. ISO 5211 Mounting Pad: Standardized mounting interface ensures easy actuator installation, alignment, and maintenance.

9. Accessories Ready: Designed to accommodate solenoid valves, positioners, limit switches, and air filter regulators for complete automation packages.

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Remarks:

• Material Selection: Specify body material based on media:

  • WCB: Water, oil, steam, non-corrosive services

  • CF8 (304): Mildly corrosive services

  • CF8M (316): Highly corrosive services, chlorides, and marine applications

• Actuator Selection: Specify actuation mode:

  • Spring Return (Fail Closed): Air to open, spring to close

  • Spring Return (Fail Open): Air to close, spring to open

  • Double Acting: No fail-safe, requires air supply to both open and close

• Control Type: Specify whether the valve is for on-off service (solenoid valve control) or modulating service (positioner with 4–20 mA signal).

• Accessories: Specify required accessories for complete automation:

  • Solenoid valve (voltage: 24VDC, 110VAC, 220VAC, etc.)

  • Positioner (analog 4–20 mA / digital / HART / Profibus)

  • Limit switches (mechanical / proximity / inductive)

  • Air filter regulator (with pressure gauge)

• Fugitive Emissions: For applications with strict environmental compliance, specify ISO 15848-1 certification.

• For specific dimensional data, actuator sizing, torque requirements, and wiring diagrams, please refer to the official certified drawings and actuator assembly documentation from the manufacturer.