Differential pressure controller
Differential pressure controller
Brief Description

D520/7DD 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

Details

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 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