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AFA Pressure Relief Controller for VFG 2 (1)
Brand: DanfossThe controller is a self-acting pressure relief controller primarily for use in district heating systems. The controller is normally closed and opens on rising pressure.
The controller has a control valve, an actuator with one control diaphragm and a spring(s) for pressure setting.
Specifications
Brand
Actuator Size
- 4.960 to 97.65 In² (32 to 630 cm²)
Applications
- Used in District Heating Systems
Diaphragm Material
- EPDM (Rolling, Fibre Enforced)
Differential Pressure
- psi: 0.725 to 232 (kPa: 5 to 1,600, bar: 0.05 to 16)
Enclosure, Body Material
- Actuator Housing: 1008 Stainless Steel
- Actuator Housing: Zinc-Plated & Yellow Chromate
Mounting Position
- Any Position for DN 15 to 80, Tmax ≤ 120° C (248° F)
- Horizontal for DN 15 to 80, Tmax > 120° C (248° F), DN 100 to 250
Operating Pressure
- Bar: 25
- District Heating Systems
