The RDF model is a direct acting pressure reducing valve made from ductile iron with flanged connections. This control valve is designed to reduce inlet pressure to a desired and stable outlet pressure. Ductile iron material offers greater flexibility and mechanical strength compared to traditional cast iron, making it highly suitable for modern piping systems.

Key Features and Benefits of the RDF Ductile Iron Pressure Reducing Valve (Flanged)
- Direct-acting design: Ideal for regulating pressure in general liquid applications.
- Versatile usage: Suitable for a wide range of water systems and general-purpose applications.
- Flexible installation: Can be mounted horizontally or vertically for convenience.
- User-friendly pressure adjustment: Equipped with an adjusting nut for easy and accurate pressure adjustment.
- Stable output pressure: Balanced piston design ensures consistent outlet pressure, even when inlet pressure fluctuates. A built-in pressure gauge displays outlet pressure for setting.
- Simple maintenance: Easy for service with maintenance kits which are available upon request.
Why choose Z-TIDE Model RDF – Direct Acting Pressure Reducing Valve (Ductile Iron, Flanged Connection)
Ductile iron material are known for their high strength, toughness, and ductility, which result from their unique nodular graphite structure that gives them superior impact and fatigue resistance compared to cast iron. These properties make this model suitable for applications in water plumbing, wastewater, gas, and industrial settings. Fully compliant with Malaysia SIRIM and SPAN approval, this ensured the pressure reducing valve's quality and its applications.
In a hotel water supply system in Malaysia, our RDF model was chosen to provide consistent and reliable water pressure throughout the building. Engineered specifically for building water infrastructure, the RDF valve ensures precise control of water pressure, helping to maintain the outlet pressure effectively. With its ductile iron construction and robust flanged connection, the RDF valve offers superior strength and durability. This pressure reducing valve meets the demanding standards of building applications, fully satisfying client’s expectations for reliability and long-term use.
Frequently Asked Questions (FAQ) about Ductile Iron Pressure Reducing Valve (Flanged)
Q1: What's the max. applied pressure of this RDF model Ductile Iron Pressure reducing valve(PRV)?
We suggest the max. applied pressure of this RDF model is 16 kg/cm2 for long-term use.
Q2: Why choose Ductile Iron? What are the features of Ductile Iron?
- High Strength and Toughness, closely matching cast steel.
- Superior Impact and Fatigue Resistance compared to Cast Iron.
- Higher Elongation & Corrosion Resistance better than Cast Iron.
Catalogue(Model RDF) Add to Inquiry Project Reference