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SAVA Safety Pressure Relief Controller
Brand: Danfoss
SAVA is a self-acting safety pressure relief controller primarily for use in district heating systems.
The controller is normally closed and opens on rising pressure. It is used for pressure relief control and as a protection against excess pressure in front of the valve.
The controller has a control valve, an actuator with two control diaphragms and a spring(s) for pressure setting.
Specifications
Brand
Actuator Size
- 8.37 In² (54 cm²)
Applications
- District Heating
Approvals & Certifications
- DIN-Gepruft
- EN 1092-2
BSP Connection
- G 1” A Male
- G 1-1/4” A Male
- G 1-3/4” A Male
- G 2” A Male
- G 2-1/2” A Male
- G 3/4” A Male
Cone Material
- Valve Cone: Dezincing Free Brass CuZn36Pb2As
Connection Style
- External Thread
- Flange
Diaphragm Material
- EPDM
Differential Pressure
- Actuator - psi: 14.5 to 159.5 (kPa: 100 to 1,100, bar: 1 to 11)
- Maximum
Electrical Contacts
- Normally Closed
Enclosure, Body Material
- Actuator Housing: 304 Stainless Steel, 1.4301 (Upper Casing of Diaphragm)
- Actuator Housing: Dezincing Free Brass CuZn36Pb2As (Lower Casing of Diaphragm)
- Valve Body (Thread): Red Bronze CuSn5ZnPb (Rg5)
- Valve Body: Ductile Iron EN-GJS-400-18-LT (GGG-40.3)
Flange Size - 1-1/2” (DN 40)
- 1-1/2” (DN 40) - PN 25
Flange Size - 1-1/4” (DN 32)
- 1-1/4” (DN 32) - PN 25
Flange Size - 1” (DN 25)
- 1” (DN 25) - PN 25
Flange Size - 1/2” (DN 15)
- 1/2” (DN 25) - PN 25
Flange Size - 2” (DN 50)
- 2” (DN 50) - PN 25
Flange Size - 3/4” (DN 20)
- 3/4” (DN 20) - PN 25
Flow Rate
- 4 to 25 m³/hour (Kvs)
Function
- Control
- Safety Function
Materials of Construction
- Copper - Impulse Tube
Measuring Range
- Medium PH: 7 to 10
Media
- Circulation Water
- Glycolic Water up to 30 %
Mounting Position
- Any Orientation
- Horizontal
Nominal Pressure
- psi: 362.6 (kPa: 2,500, bar: 25)
Process Temperature
- 2° to 150° C (35.6° to 302° F)
Seat / Seal Material
- EPDM: Seal
- Valve Seat: 316Ti Stainless Steel, 1.4542
Size
- Valve: 1” (DN 25)
- Valve: 1/2” (DN 15)
- Valve: 1-1/2” (DN 40)
- Valve: 1-1/4” (DN 32)
- Valve: 2” (DN 50)
- Valve: 3/4” (DN 20)
Tube Connection
- Impulse Tube: Copper Tube Ø 6 x 1 mm
Welded Connection
- DN 15 Weld End
- DN 20 Weld End
- DN 25 Weld End
- DN 32 Weld End
- DN 40 Weld End
- DN 50 Weld End
- District Heating
