42-34/42-38 - Differential pressure limiters with flow limitation

The Type 42-34 (and 42-38) self-operated differential pressure limiters with flow limitation for installation in the return flow pipe are designed to work in district heating supply networks with an indirect connection.

The regulators consist of a valve and an actuator with adjustable restriction. They limit the differential pressure to the set point adjusted at the actuator and limit the flow rate to the value adjusted at the restriction.

• Nominal diameters: DN15 to DN250
• Pressure classes: PN16 to PN40
• Materials: Cast iron, Spheroidal graphite iron, Cast steel
• Temperature range: +5°C to +150°C
• Differential pressure set points: 0.1 to 1.5 bar