Pressure regulator, LR Series
Brand :
FESTO
Caution
Product Description
Pressure regulator, LR Series
Features
- Two pressure gauge connections for different fitting options
- Good regulating characteristics with minimal pressure hysteresis
- High flow rate
- Two pressure regulation ranges: 0.5...7 bar and 0.5...12 bar
- Setting values are secured by locking the rotary knob
- Return flow option for venting from output 2 to input 1
Specifications
| Size | Mini | Midi | Maxi |
|---|---|---|---|
| Pneumatic connection 1, 2 | G1/8, G1/4, G3/8 | G1/4, G3/8, G1/2, G3/4 | G1/2, G3/4, G1 |
| Constructional design | Directly actuated diaphragm regulator | Pilot actuated piston regulator | |
| Directly actuated diaphragm regulator LR/LRS-...-DI | |||
| Regulating function | Output pressure constant, with secondary venting, with primary pressure compensation, with return flow action | Output pressure constant, with secondary venting, with primary pressure compensation, with return flow action | |
| Type of mounting | Via accessories | ||
| In-line installation | |||
| Front panel mounting | |||
| Assembly position | Any | ||
| Regulator lock | Rotary knob with detent | ||
| Rotary knob with integrated lock | |||
| Pressure regulation range [bar] | 0.5...7 | ||
| 0.5...12 | |||
| Max. hysteresis [bar] | 0.2 | 0.4 | |
| Pressure indication | Via pressure gauge | - | - |
| G1/8 prepared | G1/4 prepared | G1/4 prepared | |
Standard nominal flow rate qnN
| Size | Mini | Midi | Maxi | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pneumatic connection 1, 2 | G1/8 | G1/4 | G3/8 | G1/4 | G3/8 | G1/2 | G3/4 | G1/2 | G3/4 | G1 | |
| Pressure regulation range | 0.5...7 bar | 1,000 | 1,600 | 1,800 | 2,200 | 3,300 | 4,000 | 4,500 | 10,700 (7,300) | 12,000 (8,350) | 12,500 (8,400) |
| 0.5...12 bar | 800 | 1,500 | 1,700 | 2,100 | 3,200 | 3,500 | 3,500 | 10,500 (5,400) | 11,000 (6,800) | 11,500 (7,000) | |
Operating and environmental conditions
| Size | Mini | Midi | Maxi |
|---|---|---|---|
| Operating pressure [bar] | 1...16 | ||
| Operating medium | Compressed air in accordance with ISO 8573-1:2010 [7:4:4] | ||
| Inert gases | |||
| Note on operating/pilot medium | Operation with lubricated medium possible (in which case lubricated operation will always be required) | ||
| Ambient temperature [°C] | -10...+60 | ||
| Temperature of medium [°C] | -10...+60 | ||
| Storage temperature [°C] | -10...+60 | ||
| Corrosion resistance class CRC | 2 | ||
| Maritime classification | See certificate (only LR, pneumatic connection G1/8...G1) | ||