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Differential pressure controller
Brief DescriptionD520/7DD Differential pressure controller has bellows sensor, can be used in neutral gas and water like air, gas and water steam as well as liquid medium like water, oil and cryogen. The setting value is adjustable, adjust range is 0.02-1.6MPa, working p
DetailsMain Technical Parameters
Applicable to air, gas, water, hydraulic oil, lubricant oil, cryogen, light fuel oil, etc.
Working viscosity: ＜1×10-3m2/s
Switch: micro switch
Housing protection: IP65 (DIN40050, same as IP65 in GB4208)
Environment temperature: -20～+40℃
Medium temperature: 0～+95℃
Repeatability error: ≤ 1％
Vibration-resistant: Max. 2g
Contact capacity: AC 380V 6A(resistance)
Specifications
D520/7DD switch difference is not adjustable
| Setting value Range MPa | Switch difference not more than (MPa) | Working pressure MPa | MPa | Switch freq- uency | Sensor material | Female thread | Weight Kg | Overall size | Ordering No.
| ||
| Range lower limit | Range upper limit | Hous- ing | Bellows | ||||||||
| 0.02-0.1 0.02-0.16 0.025-0.25 0.03-0.4 | 0.012 0.012 0.015 0.02 | 0.015 0.017 0.02 0.025 | 0.05-1.6 | 2 2 2 2 | 10 10 10 10 | Yellow steel | Stainless steel 00Cr17Ni 14Mo2 (316L) |
G1/4” |
1.2
|
01
| 0819100 0819200 0819300 0819400 |
| 0.05-0.6 0.05-1 0.05-1.6 | 0.06 0.07 0.08 | 0.07 0.08 0.09 | 0.1-2.5 | 3 3 3 | 10 10 10 | 0819500 0819600 0819700 | |||||
D520/7DD switch difference is adjustable
| Setting value Range MPa | Switch difference not more than (MPa) | Working pressure MPa | Rated
MPa | Switch freq- uency | Sensor material | Female thread | Weight kg | Overall size | Ordering No.
| ||
| Range lower limit | Range Upper limit | Case | Bellows | ||||||||
| 0.02-0.1 0.02-0.16 0.02-0.25 0.03-0.4 | 0.035-0.1 0.035-0.15 0.04-0.25 0.045-0.4 | 0.04-0.1 0.04-0.15 0.045-0.25 0.05-0.4 | 0.05 ～ 1.6 | 2 2 2 2 | 10 10 10 10 | Yellow steel | Stainless steel 00Cr17 Ni14 M02 (316L) | G1/4" G1/4" G1/4" G1/4" | 1.25 1.25 1.25 1.25 | 01 01 01 01 | 0809100 0809200 0809300 0809400 |
| 0.05-0.6 0.05-1 0.05-1.6 | 0.16-0.4 0.17-0.8 0.18-1.2 | 0.17-0.4 0.18-0.8 0.2-1.2 | 0.1 ～ 2.5 | 3 3 3 | 10 10 10 | G1/4" G1/4" G1/4" | 1.25 1.25 1.25 | 01 01 01 | 0809500 0809600 0809700 | ||
D520/7DDK switch difference is not adjustable (small switch difference)
| Setting value Range MPa | Switch difference not more than (MPa) | Working pressure MPa | Rated MPa | Switch frequency | Sensor material | Female thread | Weight kg | Overall size | Ordering No.
| ||
| Range lower limit MPa | Range Upper limit MPa | Housing | Bellows | ||||||||
| 0.02-0.1 0.02-0.16 0.02-0.25 0.03-0.4 | 0.006 0.006 0.008 0.009 | 0.0075 0.008 0.01 0.012 | 0.05 ～ 1.6 | 2 2 2 2 | 10 10 10 10 | Yellow steel | Stainless steel 00Cr17 Ni14 M02 (316L) | G1/4" G1/4" G1/4" G1/4" | 1.20 1.20 1.20 1.20 | 01 01 01 01 | 0819107 8019207 0819307 0819407 |
| 0.05-0.6 0.05-1 0.05-1.6 | 0.03 0.035 0.04 | 0.035 0.04 0.045 | 0.1 ～ 2.5 | 3 3 3 | 10 10 10 | G1/4" G1/4" G1/4" | 1.20 1.20 1.20 | 01 01 01 | 0819507 0819607 0819707 | ||
