YDF-20F - Differential Pressure & Flow Control Valve

This valve performs the two control functions of restricting flow and maintaining a differential pressure of supply and return lines. It can be installed in a supply line or return line according
to its purpose of use.

Features

• High-performing differential pressure flow control valve that is installed in a supply or return line of a load device to control the differential pressure and flow comprehensively.
• In addition to differential pressure control, it offers a wide flow control range, from small to large flows, thanks to an embedded equal % cone for flow control.
• The diaphragm is separated from the body and thus is not affected by temperature. Since it is a perfect balance type, the set differential pressure does not change due to pressure fluctuations.
• Has a solid structure, and thus offers an outstanding level of durability.
• A diaphragm method enables to be installed horizontally or vertically.
• The opening percentage of the valve can be easily checked, thanks to the attached indicator.
• Leakage from packings can be visually checked, enabling easy identification of the appropriate time for repair.

Specification:

• Type: YDF-20F
• Size: 25 (1”) ~ 150 (6”)
• Applicable pressure: Maximum 2.0MPa
• Applicable fluid: Cold / hot water
• Fluid temperature: Maximum 120°C
• Differential pressure control range: 0.15~0.50MPa
• Flow control range: ±5% of the constant flow rate
• End connection: KS 20K RF FLANGE
• Materials
  • Body: SCPH2
  • Disc, seat: STS
  • Diaphragm: EPDM
• Hydraulic test pressure : 3.0MPa

▶ The basic pressure regulating range is 0.02~0.15MPa
▶ When using the valve, install a strainer (40 MEsh or more) on the leaflet.