NORVAL pressure regulators are direct-acting devices controlled by a diaphragm and an opposing spring, designed for low, medium and high-pressure applications. Depending on their specific configuration, they are suitable for pre-filtered, non-corrosive gases and biogas. The modular design allows the addition of a slam-shut device within the same body without altering face-to-face dimensions, or configuration as an in-line monitor. The true top-entry design ensures easy maintenance without removing the regulator body from the pipeline. These features make the regulator versatile for a wide range of applications. It can also be installed upside down.
Specifications
- Accuracy class AC: Up to 5; absolute error up to 1% (depending on operating conditions)
- Nominal sizes DN: 1″; 1½″; 2″; 2½″; 3″; 4″; 6″; 8″
- Lock-up pressure class SG: Up to 10
- Design pressure: Up to 18.9 bar
- Design temperature: −20…+60 °C
- Connections: Class 150 RF per ASME B16.5; PN 16 per ISO 7005
- Downstream pressure range Wd: Up to DN 4″: 0.008–4.4 bar; DN 6″ and 8″: 0.012–1.8 bar
- Inlet pressure range bpu: Up to DN 3″: 0.1–18.9 bar; DN 6″ and 8″: 0.1–8.6 bar
