D520/7DD Explosion-proof Differential Pressure Controller
Brief Description
D520/7DD Explosion-proof 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 pressure range is 0.05-2.5MPa.
Main 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 |
Rated MPa |
Switch frequency |
Sensor material |
Female thread |
Weight Kg |
Overall size |
Ordering No.
|
||
Range lower limit |
Range upper limit |
Housing |
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
|
02
|
0859180 0859280 0859380 0859480
|
|
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 |
0859580 0859680 0859780 |
|||||
D520/7DD switch difference is adjustable
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 |
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 |
02 |
0859180 0859280 0859380 0859480 |
|
|
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 |
0859580 0859680 0859780 |
||||
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