Control Valves 2-way DN 100-150mm - Cast Iron | Clorius Controls

Clorius M2F – 2-Way Control Valve DN100–DN150

The Clorius M2F DN100–DN150 is a flanged, double-seated control valve with an EN-GJS-400-15 body and PN16 rating. It is designed for flow regulation in hot water, steam, and thermal oil applications, suitable for district heating, industrial processes, and marine installations.

Construction and Standards

• Available sizes: DN100, DN125, DN150.
• Flanges: EN 1092-2 compliant.
• Counter flanges: DIN 2633.
• Actuator connection: G1B as per ISO 228.
• Internal components: stainless steel.
• Gasket: graphite.
• Pressure/temperature diagram: DIN 2401.
• Nominal pressure: PN16, with pressure derating at higher temperatures per manufacturer’s diagram.

Hydraulic Characteristics

The M2F features a double-seated design, reducing hydraulic force on the stem compared to large single-seated valves. Seat leakage is ≤0.5% of Kvs according to VDI/VDE 2174, a critical factor for applications requiring tight shut-off. The flow characteristic is almost quadratic, with a control ratio of Kvs/Kvr >25.

Kvs and Stroke

• DN100: Kvs 125 m³/h, stroke 20 mm, weight 32 kg.
• DN125: Kvs 215 m³/h, stroke 20 mm, weight 50 kg.
• DN150: Kvs 310 m³/h, stroke 20 mm, weight 70 kg.

Operation with Actuator

Without an actuator, the valve remains open via a spring. It closes with pressure on the stem. Compatible with thermostats, pneumatic, or electric actuators; the valve closes with temperature increase. For cooling circuits, a reverse acting electric actuator or reverse acting setup is required.

Installation

Installation is permissible with vertical or horizontal stem. Up to 170°C, the thermostat or actuator can be mounted above or below the valve. Above 170°C, a cooling unit for the thermostat or a high-temperature adaptor for the electric actuator is necessary.