QDYQ340Y-25 Piston Flow and Pressure Regulating Valve
The pressure-specific model heading on printed page 09 of the KOZO flow and pressure regulating valve catalog shows drive-code alternatives 3, 6 Und 9 and sealing-code alternatives H, F and Y. This page separates the 3 drive / Y sealing-code / 25 pressure entry as QDYQ340Y-25; body-material codes are not multiplied into unverified products.
Features and applications
The piston-type design adjusts the flow passage for flow regulation and pressure management. The catalog describes reservoir discharge, long-distance water transmission, waterworks and municipal water networks. Confirm flow range, Ventilgröße, pressure differential and installation duty with KOZO for the intended service.
Catalog specifications
- Modell: QDYQ340Y-25
- Nominal pressure designation: PN25
- Listed size range: DN150-DN2000
- Verbindung: geflanscht
- Betätigung: Schneckengetriebe
- Katalog-Versiegelungscode: Y
C, ICH, P and R remain selectable body-material codes. The actual body grade, seat material and temperature capability must be confirmed together for the selected configuration. The sealing-code letter is preserved from the source, not used to invent a specific alloy or unverified temperature rating. Gearbox selection and operating torque depend on valve size and duty. Keine Sonderlegierung, cryogenic or certification claim is inferred.
Original image reference
The main image is an original catalog worm gear series photograph, not proof of a separately verified pressure-, Sitz- oder materialspezifischer Fertigauftrag. The image carries a KOZO VALVE watermark and retains the original catalog structure without generated hardware. Appearance and dimensions vary with size, pressure and configuration. Request a configuration-specific drawing and actual product photograph before confirming an order.
Quelle: KOZO flow and pressure regulating valve manufacturer catalog, printed page 09 model and dimension heading; applications on printed page05. Confirm final specifications and availability before ordering.

