YNTO Stainless Steel Valve Body Pneumatic Flanged

Authorized Distributor YNTO Stainless Steel Valve Body Pneumatic Flanged

Triple Offset Hard Sealing Butterfly Valve (D673H/W)

Product Overview

The YNTO Pneumatic Flanged Triple Offset Hard Sealing Butterfly Valve (D673H/W) is engineered for high-temperature, high-performance shut-off and flow regulation in demanding industrial services. Its three-offset (triple eccentric) design eliminates friction between sealing surfaces during operation, significantly extending service life and ensuring zero-leakage performance.

The valve employs a precision U-shaped elastic sealing ring combined with a multi-layer metal hard seal. As the valve closes, the wedge-effect geometry generates elastic sealing torque that tightens progressively, delivering reliable compensatory sealing even under thermal cycling. Compact, lightweight, and easy to install, this valve supports pneumatic (standard) and optional electric actuation for remote and programmable control.

Widely used in metallurgy, power generation, petroleum, chemical processing, water supply & drainage, and municipal construction, the D673H/W is suitable for water, steam, oils, acids, and alkalis at temperatures up to 425 °C.

Key Features

1. Triple-offset design removes sealing friction, extending service life.

2. Torque-generated elastic sealing for dependable shut-off.

3. Automatic wedge sealing tightens on closing for zero leakage.

4. Compact & lightweight construction for easy operation and installation.

5. Actuator flexibility: pneumatic standard; electric optional for remote/PLC control.

6. Material adaptability and optional linings for corrosion protection across media.

Technical Specifications

Valve Type

• Pneumatic Flanged Triple Offset Butterfly Valve

• Model: D673H / D673W

Nominal Diameter

• DN50 – DN600

Nominal Pressure

• PN10 (1.0 MPa) to PN25 (2.5 MPa)

Applicable Temperature

• –30 °C to +425 °C

Applicable Media

• Water

• Steam

• Oil products

• Acids and alkalis

Connection Method

• Flanged Connection

Body Material

• Cast Steel

• Stainless Steel

Disc (Plate) Material

• Cast Steel

• Stainless Steel

• Special alloys (on request)

Stem Material

• Cast Steel

• Stainless Steel

• Special alloys (on request)

Packing

• PTFE

• Flexible Graphite

Actuation

• Pneumatic actuator (standard)

• Electric actuator (optional)

Advantages & Benefits

• Zero-leakage hard sealing suitable for high temperatures

• Long service life with minimal maintenance

• Stable performance under thermal expansion and pressure fluctuation

• Broad material options for corrosive and severe services

• Ideal for critical isolation and throttling duties

Typical Applications

• Metallurgy and heavy industry pipelines

• Power plants (steam and auxiliary systems)

• Petroleum and chemical processing

• Water supply, drainage, and municipal infrastructure

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 deliver reliable valve automation solutions with professional technical support for critical industrial applications.