YNTO Stainless Steel Pneumatic Flanged 90° Quarter-Turn Ball Valve (Q641F)

YNTO Stainless Steel Pneumatic Flanged 90° Quarter-Turn Ball Valve (Q641F)

Product Overview

The YNTO Pneumatic Flanged Ball Valve (Q641F) is a 90° quarter-turn valve engineered for tight shut-off, high flow capacity, and minimal pressure loss. Its full-bore design keeps the valve body channel equal to the pipeline diameter, allowing media to pass through with very low resistance. The valve features a simple internal structure for easy maintenance and a long service life.

Designed for applications with strict sealing requirements, the Q641F performs reliably with gases, liquids, steam, and media containing fibrous impurities (e.g., in water systems). It is widely applied across petroleum, chemical processing, metallurgy, light industry, papermaking, power generation, and refrigeration.

Technical Specifications

Valve Type

• Pneumatic Flanged Ball Valve

• Model: Q641F

• Operation: 90° Quarter-Turn

Nominal Diameter

• DN15 – DN200

Nominal Pressure

• PN10 (1.0 MPa) to PN64 (6.4 MPa)

Applicable Temperature

• PTFE Seat: up to 150 °C

• PPL Seat: up to 200 °C

• Metal Hard Sealing: up to 425 °C

Applicable Media

• Water

• Oil

• Steam

• Acids and Alkalis

Connection

• Flanged Connection

Valve Body Material

• Cast Steel

• Stainless Steel: 304 / 316 / 316L

• Duplex Stainless Steel

Ball (Valve Disc) Material

• Stainless Steel: 304 / 316 / 317L

• Duplex Stainless Steel

Stem Material

• Stainless Steel: 304 / 316 / 317L

• Duplex Stainless Steel

Seat Material

• PTFE

• High-Temperature PPL

• Metal Hard Sealing (optional)

Actuation

• Pneumatic Actuator (Quarter-Turn)

Key Features & Benefits

• Excellent sealing performance for demanding shut-off duties

• Full-bore design with low flow resistance coefficient

• Simple, robust structure for easy maintenance

• Wide pressure and temperature capability

• Suitable for fibrous and mixed media

• Long service life in harsh industrial environments

Typical Applications

• Oil & gas pipelines and terminals

• Chemical and petrochemical plants

• Metallurgy and heavy industries

• Paper mills and light industry

• Power plants and refrigeration systems

Supplied by PT. Karya Manaru Energi, a trusted Authorized Distributor Electrical Actuator Valve, Authorized Distributor Control Valve, and Authorized Distributor Pneumatic Actuator, and an Authorized Distributor of YNTO products in Indonesia. We provide reliable pneumatic valve automation solutions backed by professional technical support.