Hydraulic Control Valves
GDBY Explosion Isolation Proportional Pilot-operated Relief Valve
GDBY Explosion isolation proportional pilot-operated relief valve is made up of a proportional directly-operated relief valve, a pressure limiting valve and a low-noise relief valve. It governs system pressure in accordance with the value of input current. Our Explosion isolation valves are enabling creative solutions. You can read off the Valve performance on the chart
Model Description
Technical Specification of GDBY Explosion Isolation Proportional Pilot-operated Relief Valve
| Model | 03 | 06 | 10 |
| Maximum pressure (MPa) | 31.5 | 31.5 | 31.5 |
| Maximum flow (l/min) | 100 | 200 | 400 |
| Minimum flow (l/min) | 3 | 3 | 3 |
| Rated current (mA) | 750 | 750 | 750 |
| Coil resistance(Ω) | 10～19.5 | ||
| Hysteresis (%) | ＜2 | ＜2 | ＜2 |
| Repeatability (%) | 1 | 1 | 1 |
| Weight (Kg) | 5.6 | 6.3 | 10 |
Function Symbol
Mounting Dimensions of GDBY Explosion Isolation Proportional Pilot-operated Relief Valve 
| Model | A | B | C | D | E | F | G | H | J | K | d1 | d2 | d3 |
| GDBY-03 | 197 | 193 | 112 | 54 | 80 | 22.2 | 47.6 | 0 | 54 | 25.8 | 14 | 6 | 13 |
| GDBY-06 | 197 | 197 | 119 | 69.8 | 102 | 11.1 | 55.6 | 23.8 | 66.7 | 16.3 | 24 | 6 | 18 |
| GDBY-10 | 197 | 200 | 150 | 82.5 | 116 | 12.7 | 76.2 | 31.7 | 89 | 18 | 32 | 6 | 20 |
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