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AFD Pressure Reduction Controller for VFG 2 (1) & VFGS 2
Brand: DanfossThe controller is a self-acting pressure reduction controller primarily for use in district heating systems. The controller is normally open and closes on rising differential pressure.
The controller has a control valve, an actuator with one control diaphragm and a spring for pressure setting.
Further on three valve versions are available:
- VFG 2 for water, with metallic sealing cone
- VFG 21 for water, with soft sealing cone
- VFGS 2 for steam, with metallic sealing cone
Specifications
Brand
Actuator Size
- 4.960 to 97.65 In² (32 to 630 cm²)
Applications
- District Heating Systems
Diaphragm Material
- Control Diaphragm: EPDM (Rolling: Fibre Enforced)
Differential Pressure
- psi: 0.725 to 232 (kPa: 5 to 1,600, bar: 0.05 to 16)
Enclosure, Body Material
- 1008 Stainless Steel
- Zinc-Plated & Yellow Chromate
Mounting Position
- Any For, Maximum
- Horizontal For, Maximum
Operating Pressure
- psi: 232.1 (kPa: 1,600, bar: 16), Maximum
- psi: 362.6 (kPa: 2,500, bar: 25), Maximum
Temperature Range
- 2° C (36° F) Minimum