YNTO Stainless Steel Pneumatic Flanged Soft Sealed Butterfly Valve

Product Description

YNTO Stainless Steel Pneumatic Flanged Soft Sealed Butterfly Valve (D641X) is a high-quality butterfly valve designed for reliable shut-off and flow regulation in industrial pipeline systems. Featuring a pneumatic actuator and flanged connection, this valve offers fast opening and closing, simple operation, and excellent sealing performance.

Its compact and lightweight structure ensures low flow resistance and high flow capacity. The bidirectional soft sealing design guarantees zero leakage, regardless of flow direction, while allowing flexible installation. With optional accessories, the valve can be fully integrated into automated control systems.

This valve is widely applied in oil & gas, petrochemical, chemical processing, water treatment, food & beverage, environmental protection, power plants, and general industrial automation, delivering stable and long service performance even under demanding operating conditions.

PT. Karya Manaru Energi, as an Authorized Distributor and Main Distributor of YNTO in Indonesia, supplies this valve with complete technical support for industrial and energy-sector applications.

Key Features

• Pneumatic actuator for rapid and reliable ON/OFF or control operation

• Excellent bidirectional soft sealing with zero leakage

• Compact, lightweight design with low torque requirement

• Linear flow characteristics for good regulating performance

• Flanged connection suitable for vertical and horizontal installation

• Multiple sealing material options for various operating conditions

• Integrated sealing ring design to extend service life

• High abrasion resistance for harsh working environments

• Suitable for end-of-line service as a drain valve

Technical Specifications

General Information

• Valve Type: Pneumatic Flanged Soft Sealed Butterfly Valve

• Model: D641X

• Operation: Pneumatic Actuated (Quarter-Turn)

• Sealing Type: Soft Seated, Bidirectional

• Nominal Diameter: DN50 – DN800

• Nominal Pressure:

  • PN10 (1.0 MPa)

  • PN16 (1.6 MPa)

Pressure Testing

• Strength Test Pressure:

  • PN10: 1.5 MPa

  • PN16: 2.4 MPa

• Seal Test Pressure:

  • PN10: 1.1 MPa

  • PN16: 1.76 MPa

Materials of Construction

Operating Conditions

• Applicable Media:
  Fresh water, sea water, food products, natural gas, alcohols, salts, acids, alkalis, oil, steam, air, and other compatible media

• Applicable Temperature:

  • EPDM: -20°C to +120°C

  • NBR: -20°C to +93°C

  • PTFE: -10°C to +150°C

Applications

• Oil & Gas Facilities

• Petrochemical and Chemical Plants

• Power Plants

• Water & Wastewater Treatment

• Food & Beverage Industry

• Environmental Protection Systems

• Industrial Automation and Process Control