Control valve 2-way DN 15/4-50mm - Cast Iron | Clorius Controls

Clorius M1F – 2-Way Control Valve DN15/4–DN50

The Clorius M1F is a flanged, single-seated control valve designed for flow regulation in low, medium, or high-pressure hot water, steam, and lubricating oils. It is compatible with thermostats, differential pressure controllers, pneumatic or electric actuators for use in process applications, district heating, central heating systems, and marine installations.

Construction and Standards

• Body: EN-GJS-400-15.
• Stem, seat, and cone: stainless steel.
• Gasket: graphite.
• Nominal pressure: PN16.
• Flanges according to EN 1092-2, PN16.
• Counter flanges: DIN 2633 / BS 4504.
• Actuator connection: G1B according to ISO 228.
• Pressure/temperature diagram according to DIN 2401.

Hydraulic Characteristics

The M1F features a quadratic flow characteristic and a regulating capability Kvs/Kvr >25. Seat leakage is ≤0.05% of Kvs according to VDI/VDE 2174, suitable for thermal load regulation but not for line isolation as a shut-off valve.

DN and Kvs Versions

• DN15/4: Kvs 0.20 m³/h, stroke 6 mm.
• DN15/6: Kvs 0.45 m³/h.
• DN15/9: Kvs 0.95 m³/h.
• DN15/12: Kvs 1.70 m³/h.
• DN15: Kvs 2.75 m³/h.
• DN20 to DN50: Kvs 5 to 30 m³/h, stroke 6.5–10 mm.

Operation with Actuator

Without an actuator, the valve remains open via a spring. It closes with pressure on the stem. With a thermostat or pneumatic/electric actuator, it can close upon temperature increase. In cooling circuits, a reverse acting electric actuator or equivalent self-acting control arrangement is required.

Installation

Installation can be done with a 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 required.