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BOSCH REXROTH
ABZSS-P30E-3X/330E/S630G24K4V
R901252558
Safety & Shut-off Blocks

Accumulator safety blocks: ABZSS -standa

$4,266.00

BOSCH REXROTH

MATERIAL:  R901252558

SUMMARY:  Accumulator safety blocks: ABZSS -standa

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Function

The accumulator shut-off block serves for the protection, isolation and unloading of hydraulic accumulators. It is classified based on its use according to the Pressure Equipment Directive 2014/68/EU article 4, section 3. The connection between the accumulator shut-off block and the accumulator is realized by means of an accumulator adapter.

 

The accumulator is protected from inadmissible overpressure by means of the pressure relief valve. The pressure relief valve must not be used for any control tasks. Sufficient difference between the maximum operating pressure and the working pressure must be ensured. Response of the pressure relief valve should be prevented, if possible.

Ordering code

01

02

03

04

05

06

07

08

09

10

11

12

13

14

ABZSS

3X

/

E

/

*

Device designation

01

Accumulator shut-off block

ABZSS

Type of connection

02

Piping connection

no code

Subplate mounting

-P1)

Nominal diameter

03

DN08

08

DN10

10

DN20

20

DN30

30

Unloading

04

manual

M

manual and electro-magnetic (without manual override)

E2)

Component series

05

Component series 30 ... 39 (30 ... 39: unchanged installation and connection dimensions)

3X

Pressure adjustment (others upon request)

06

50 bar

50

100 bar

100

140 bar

140

210 bar

210

350 bar

3503)

Pressure relief valve

07

Pressure relief valve, type-examination tested (with CE mark) 4)

E

Accumulator adapter

08

Without accumulator adapter

no code

With BSP thread G1/2

DN08

S104

DN10; DN20

S30

With BSP thread G3/4

DN08

S108

DN10; DN20

S31

DN08

S105

DN10; DN20

S10

With BSP thread G1 1/4

DN08

S107

DN10; DN20

S12

DN30

S307

With BSP thread G2

DN08

S109

DN10; DN20

S13

DN30

S309

With SAE thread 3/4-16 UNF

DN10; DN20

S64

With SAE thread 1 1/18-12 UN

DN10; DN20

S60

With SAE thread 1 5/8-12 UN

DN10; DN20

S62

DN30

S620

With SAE thread 1 7/8-12 UN

DN10; DN20

S63

DN30

S630

Voltage type 5)

09

Direct voltage 24 V

G24

Alternating voltage 110 V

G968)

Alternating voltage 230 V

G2058)

Electrical connection 5)

10

Without mating connector with protective cap

K46)

Seal material

11

FKM seals

V

NBR seals

W7)

Connection thread

12

BSP thread according to ISO 228 Part 1

no code

SAE thread to ANSI B1.1

122)

Special version

13

DN30 with DBDS valve NG30

SO30

Shut-off device (2 positions) DN10 … DN30

103

Shut-off device (1 position) DN10 … DN30

104

Connection thread

14

Further details in the plain text

1) Only “DN30”
2) Not with “DN08”
3) Type SO30 is supplied with a pressure rating of 315 bar
4) According to Pressure Equipment Directive 2014/68/EU
5) Only with electro-magnetic unloading design “E”
6) Mating connectors, separate order (data sheet 08006).
7) Special version
8) For connection to the AC voltage mains , a DC solenoid controlled via a rectifier is to be used (see table). For individual connection, a mating connector with integrated rectifier can be used (separate order).

Notice:

Unlike the standard accumulator safety block, the ABZSS30 … SO30 is equipped with a direct operated pressure relief valve NG30.

Version ABZSS-P30 for subplate mounting.

AC voltage mains (admissible voltage tolerance ± 10%)

Nominal voltage of the DC solenoid in case of operation with alternating voltage

Ordering code

110​ V ‒ 50/60 Hz
120 -V ‒ 60 Hz

96 V

G96

230 V ‒ 50/60 Hz

205 V

G205

general

Nominal diameter

DN08 DN10 DN20 DN30 DN30SO30 DNP30…

Weight

Version "M"

kg

4 5.2 8.5 20.5 26.5 33.1

Version "E"

kg

- 5.5 8.8 20.8 26.8 33.4

Ambient temperature range

°C

-15 … +80

hydraulic

Maximum operating pressure

bar

350

Hydraulic fluid temperature range

°C

-10 … +60

Seal material

FKM seals or NBR seals (special version)

Block material

Steel

Viscosity range

mm²/s

12 … 230

Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 1)

Class 20/18/15
1) The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter.

Hydraulic fluid

Classification

Suitable sealing materials

Standards

Data sheet

Mineral oil

HL, HLP, HLPD, HVLP, HVLPD

FKM, NBR

DIN 51524

90220

Bio-degradable

Insoluble in water

HETG

FKM, NBR

ISO 15380

90221

HEES

FKM

Soluble in water

HEPG

FKM

Important information on hydraulic fluids:
▶ For more information and data on the use of other hydraulic fluids, please refer to the data sheets above or contact us!
▶ There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.)!
▶ The ignition temperature of the hydraulic fluid used must be 40 K higher than the maximum solenoid surface temperature.
▶ Bio-degradable and flame-resistant:
When using hydraulic fluids that are simultaneously zinc-solving, zinc may accumulate (700 mg zinc per pole tube).

electrical

Protection class according to DIN EN 60529 1)

With connector "K4"

IP65
1) With mating connector mounted and locked

For applications outside these parameters, please consult us!

Type-examination tested safety valves type DBD1)

Size 6 (ABZSS 08, 10)

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Size 10 (ABZSS 20)

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Size 20 (ABZSS 30, -P30)

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Size 30 (ABZSS 30…SO30)

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Notice:

Value pairs located in the areas of the characteristic curves with gray background cannot be realized with the safety valve. The characteristic curves shown here are only valid for a counter pressure of 0 bar in the discharge line.

 

1) Component series 1X, according to the Pressure Equipment Directive 2014/68/EU

Characteristic curves: Counter pressure in the discharge line

In principle, the valve should be operated without counter pressure in the discharge line, if possible. In case of counter pressure in the discharge line, the maximum possible flow is reduced. There is a relationship between maximum counter pressure pT in the discharge line and flow qV, which can be seen from the following characteristic curve. Characteristic curves for intermediate values of the response pressure which are not listed must be determined by means of interpolation.

When the flow approaches zero, the maximum counter pressure pT is in each case 10% of the response pressure. With increasing flow, the maximum counter pressure pT decreases.

 

Interpolation of intermediate values from the diagram

At the axis pT, mark 1/10 of the value of pA. Determine the next lower and the next higher characteristic curve for this point. The point marked at pT divides the section between lower and higher characteristic curve on the pT axis with a certain percentage. At the qVmax axis, divide the section between next lower and next higher characteristic curve in the same percentage as the section at the pT axis. From the zero position flow on the qVmax axis determined in that way, draw a straight line to the value on the pT axis marked before. Mark the system flow to be secured at the qVmax axis. Read off the maximum counter pressure for this value using the line at the pT axis drawn before.

Characteristic curves: Counter pressure in the discharge line – size 6

Diagram for determining the maximum counter pressure pT in the discharge line at port T of the valve dependent on the flow qVmax for valves DBDS 6...1X/...E with different response pressures pA.

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Characteristic curves

Response pressurepA in bar

1

30

2

60

3

110

4

115

5

170

6

210

7

315

8

400

Characteristic curves for intermediate values can be generated by interpolation. See "Counter pressure in the discharge line".

pA Response pressure in bar

pT Maximum counter pressure in the discharge line (port T) in bar

qVmax Maximum flow in l/min

Area I Interpolation area I, for valves with pA = 30 … 110 bar and qVmax = 14 … 27 l/min

Area II Interpolation area II, for valves with pA = 115 … 400 bar and qVmax = 52 l/min

 

Determination of the maximum counter pressure

Example 1 (with already existing characteristic curve): Flow of the system/accumulator that has to be secured: qVmax = 15 l/min

Safety valve set to: pA = 315 bar.

From the diagram (see arrows, characteristic curve 7), read off the maximum counter pressure pT of approx. 22.5 bar.

 

Example 2 (with interpolated characteristic curve):

Flow of the system / accumulator to be secured: qVmax = 15 l/min

Safety valve set to: pA = 80 bar.

The value to be marked at the pT axis is calculated as follows: 1/10 x 80 bar = 8 bar.

From the diagram (see arrows, dashed characteristic curve), read off the maximum counter pressure pT of approx. 3 bar.

Characteristic curves: Counter pressure in the discharge line – size 10

Diagram for determining the maximum counter pressure pT in the discharge line at port T of the valve dependent on the flow qVmax for valves DBDS 10...1X/...E with different response pressures pA.

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Characteristic curves

Response pressurepA in bar

1

30

2

60

3

110

4

170

5

175

6

210

7

315

8

400

9

405

10

630

Characteristic curves for intermediate values can be generated by interpolation. See "Counter pressure in the discharge line".

pA Response pressure in bar

pT Maximum counter pressure in the discharge line (port T) in bar

qVmax Maximum flow in l/min

Interpolations

Characteristic curves: Counter pressure in the discharge line – size 20

Diagram for determining the maximum admissible counter pressure pT in the discharge line at port T of the valve dependent on the flow qVmax for valves DBDS 20...1X/...E with different response pressures pA.

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Characteristic curves

Response pressurepA in bar

1

30

2

60

3

110

4

170

5

210

6

315

7

320

8

400

Characteristic curves for intermediate values can be generated by interpolation. See "Counter pressure in the discharge line".

pA response pressure in bar

pT Maximum counter pressure in the discharge line (port T) in bar

qVmax Maximum flow in l/min

Characteristic curves: Counter pressure in the discharge line – size 30

Diagram for determining the maximum counter pressure pT in the discharge line at port T of the valve dependent on the flow qVmax for valves DBDS 30...1X/...E with different response pressures pA.

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Characteristic curves

Response pressurepA in bar

1

30

2

60

3

110

4

170

5

210

6

315

Characteristic curves for intermediate values can be generated by interpolation. See "Counter pressure in the discharge line".

pA response pressure in bar

pT Maximum counter pressure in the discharge line (port T) in bar

qVmax Maximum flow in l/min

DN08

Version "M" (manual unloading)

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Version "E" (manual and electro-magnetic unloading)

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

DN10, 20 and 30

Version "M" (manual unloading)

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

1

System shut-off cock

2

Pressure relief valve

3

Manual unloading

4

Electro-magnetic unloading, optional

Connection designation

M, M1, M2

Measuring port

P, P1, P2

Pump connection

S

Accumulator port

T

Tank port

Dimensions: Version "08…" (DN08)

Dimensions in mm

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Connection thread

BSP

M1; M2

Measuring port

G1/4

P1

Pump connection

G3/8

P2

Pump connection

G1/2

T

Tank port

G1/4

S

Accumulator port

M20 x 1.51)

1) Mounting cavity according to DIN EN 9974-1

Item explanations at the end.

Characteristic curves for type-examination tested safety valves type DBDS see “Diagrams/characteristic curves”.

Dimensions: Version "10…" (DN10)

Dimensions in mm

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Connection thread

BSP

SAE

M1; M2

Measuring port

G1/4

7/6-20 UNF

P

Pump connection

G1/2

3/4-16 UNF

T

Tank port

G3/8

9/16-18 UNF

S

Accumulator port

M33 x 2

M33 x 2

Item explanations at the end.

Characteristic curves for type-examination tested safety valves type DBDS see “Diagrams/characteristic curves”.

Dimensions: Version "20…" (DN20)

Dimensions in mm

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Connection thread

BSP

SAE

M1; M2

Measuring port

G1/4

7/6-20 UNF

P

Pump connection

G1

1 5/16-12 UNF

T

Tank port

G1/2

3/4-16 UNF

S

Accumulator port

M33 x 2

M33 x 2

Item explanations at the end.

Characteristic curves for type-examination tested safety valves type DBDS see “Diagrams/characteristic curves”.

Dimensions: Version "30…" (DN30)

Dimensions in mm

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Connection thread

BSP

SAE

M1; M2

Measuring port

G1/4

7/6-20 UNF

P

Pump connection

G1 1/2

1 7/8-12 UNF

T

Tank port

G1

1 5/16-12 UNF

S

Accumulator port (flange)

see "Accessories - Accumulator adapter BSP/SAE"

Item explanations at the end.

Characteristic curves for type-examination tested safety valves type DBDS see “Diagrams/characteristic curves”.

Dimensions: Version "30…SO30" (DN30)

Dimensions in mm

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Connection thread

BSP

SAE

M1; M2

Measuring port

G1/4

7/6-20 UNF

P

Pump connection

G1 1/2

1 7/8-12 UNF

T

Tank port

G1 1/2

1 7/8-12 UNF

S

Accumulator port (flange)

see "Accessories - Accumulator adapter BSP/SAE"

Item explanations at the end.

Characteristic curves for type-examination tested safety valves type DBDS see “Diagrams/characteristic curves”.

Dimensions: Version "P30…" subplate mounting (DN30)

Dimensions in mm

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Connection thread

BSP

SAE

M1; M2

Measuring port

G1/4

7/6-20 UNF

S

Accumulator port (flange)

see "Accessories - Accumulator adapter BSP/SAE"

Item explanations at the end.

Characteristic curves for type-examination tested safety valves type DBDS see “Diagrams/characteristic curves”.

Dimensions: Special versions "SO103" and "SO104" (for NG10 to NG30 only)

"SO103" shut-off device with two shut-off positions (open or closed)

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

"SO104" shut-off device with one shut-off position (closed)

(padlock not included in the scope of delivery) technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Dimensions: Item explanations

1

Block

2

System shut-off cock

3

Pressure relief valve

4

Accumulator adapter, see "Accessories"

5

Name plate

6

Manual unloading

7

Electro-magnetic unloading, optional (version "E" only)

8

Mating connectors, separate order

9

Hexagon socket head cap screws 4 pieces ISO 4762 - M16 x 45 - 10.9

Tightening torque MA = 250+10 Nm

10

Hexagon socket head cap screws 4 pieces ISO 4762 - M16 x 55 - 10.9

Tightening torque MA = 250+10 Nm

11

R-ring 42.5 x 3 x 3 Shore 90

12

R-ring 34.52 x 3.53 x 3.53 Shore 90

Tightening torque: Pressure relief valve DBD

Size

Tightening torques MA for screw-in cartridge valves

Pressure rating up to

200 bar

Pressure rating up to

400 bar

Nm

Nm

Nm 1)

Nm

8 50 1) ± 5 80 ± 5
10 100 1) ± 5 150 ± 10
20 150 1) ± 10 300 ± 15
30 350 1) ± 20 500 ± 30
1) The tightening torques are guidelines with a friction coefficient μtotal = 0.12 and when using a manual torque wrench.

Mating connectors according to DIN EN 175301-803

For details and more mating connectors see data sheet 08006

Valve side

Color

Part number

Without circuitry

With indicator light

With rectifier

With indicator light and Zener diode suppression circuit

a

gray

R901017010

b

black

R901017011

a/b

black

R901017022

R901017025

R901017026

Accumulator adapter BSP thread, maximum operating pressure 350 bar

Fig. 1

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Fig. 2
Dimensions in mm

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Fig. 3

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Nominal diameter version

Accumulator type

Accumulator DN

Accumulator adapter

Fig.

D

ØD1

ØD2

H1

H2

M

O

O1

S

ABZSS10, ABZSS20

ABZSS08

ABZSS10, ABZSS20

ABZSS08

ABZSS10, ABZSS20

ABZSS10, ABZSS20

ABZSS08

ABZSS10, ABZSS20

ABZSS08

 

 

ABZSS10, ABZSS20

ABZSS08

mm

mm

mm

mm

mm

mm

ABZSS08
ABZSS10
ABZSS20
Diaphragm type accumulator data sheet 50150 0.075 S30 S104 1 G1/2A 26.9 39.9 35 14 19.5 M33 x 2 M20 x 1.5 Profile seal ring G1/2A according to DIN 3869 24 x 2 - Profile seal ring G1/2A according to DIN 3869 SW41 SW36
0.16
0.32
0.5
0.7
1
1.4
2 S31 S108 G3/4A 32 16 Profile seal ring G3/4A according to DIN 3869 Profile seal ring G3/4A according to DIN 3869
2.8
3.5
Bladder-type accumulator Data sheet 50171 1 S10 S105 2 - 28 15.5 - 18 x 2.5 -
2.5 S12 S107 G1 1/14A 37 16.5 30 x 3 SW46 -
4
6
10 S13 S109 G2A 43 20.5 48 x 3 SW65
20
35
50
ABZSS30
ABZSSP30
-
2.5 S307 - 3 G1 1/4A - - 37 30 - - 56.52 x 5.33 30 x 3 -
4
6
10 S309 G2A 43 48 x 3
20
35
50

Ordering code accumulator adapter BSP thread

Version

Accumulator adapter

Part number

Accumulator adapter

Part number

FKM

NBR2)

S10

S10V/G3/4-M33X2 *BG

R900545254

S10M/G3/4-M33X2 *BG

R900862699

S12

S12V/G1 1/4-M33X2 *BG

R900545255

S12M/G1 1/4-M33X2 *BG

R900862700

S13

S13V/G2-M33X2 *BG

R900545256

S13M/G2-M33X2 *BG

R900862701

S30

S30V/G1/2-M33X2 *BG

R900545252

S30M/G1/2-M33X2 *BG

R900862695

S31

S31V/G3/4-M33X2 *BG

R900545253

S31M/G3/4-M33X2 *BG

R900862697

S104

S104V/G1/2-M20X1,5* &

R901265402

S104M/G1/2-M20X1,5* &

R901265401

S105

S105V/G3/4-M20X1,5* &

R901265411

S105M/G3/4-M20X1,5* &

R901265407

S107

S107V/G11/4-M20X1,5*&

R901265412

S107M/G11/4-M20X1,5*&

R901265422

S108

S108V/G3/4-M20X1,5* &

R901265434

S108M/G3/4-M20X1,5* &

R901265425

S109

S109V/G2-M20X1,5* &

R901265408

S109M/G2-M20X1,5* &

R901265404

S3071)

S307V/G 11/4-DN32 *BG

R900085303

S307M/G 11/4-DN32 *BG

R900067050

S3091)

S309V/G2-DN32 *BG

R900545858

S309M/G2-DN32 *BG

R900862702

1) Scope of delivery includes 4 hexagon socket head cap screws ISO 4762 - M16 x 45 - 10.9

2) Special version

Accumulator adapter SAE thread, maximum operating pressure 350 bar

Fig. 1

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Fig. 2
Dimensions in mm

technical illustration-ABZSS-P30E-3X/330E/S630G24K4V-Accumulator safety blocks: ABZSS -standa

Nominal diameter version

Accumulator type

Accumulator DN

Accumulator adapter

Fig.

D

ØD1

H1

H2

O-ring

S

mm

mm

mm

mm

ABZSS10
ABZSS20
-
Diaphragm type accumulator data sheet 50150 0.075 S64 1 3/4-16 UNF-2A 23 11.4 18.1 16.36 x 2.21 SW41
0.16
0.32
0.5
0.7
1
1.4
2 S60 1 1/16-12 UN-2A 32 15.2 18.3 23 x 3
2.8
3.5
Bladder-type accumulator Data sheet 50171 1
2.5 S62 1 5/8-12 UN-2A 48 20.3 38 x 3 SW65
4
6
10 S63 1 7/8-12 UN-2A 54 44 x 3
20
35
50
ABZSS30
-
-
1 S620 2 1 5/8-12 UN-2A 48 33.8 38 x 3 -
4
6
10 S630 1 7/8-12 UN-2A 54 44 x 3
20
35
50

Ordering code accumulator adapter SAE thread

Version

Accumulator adapter

Part number

Accumulator adapter

Part number

FKM

NBR2)

S60

S60V/ 1 1/16-12UN-M33x2

R900618788

S60M/ 1 1/16-12UN-M33x2

R900618799

S62

S62V/ 1 5/8-12UN-M33x2

R900618800

S62M/ 1 5/8-12UN-M33x2

R900618801

S63

S63V/ 1 7/8-12UN-M33x2

R900618803

S63M/ 1 7/8-12UN-M33x2

R900618804

S64

S64V/ 3/4-16UNF-M33x2

R900618805

S64M/ 3/4-16UNF-M33x2

R900618806

S6201)

S620V/ 1 5/8-12UN-DN32

R900618813

S620M/ 1 5/8-12UN-DN32

R900618814

S6301)

S630V/ 1 7/8-12UN-DN32

R900618817

S630M/ 1 7/8-12UN-DN32

R900618815

1) Scope of delivery includes 4 hexagon socket head cap screws ISO 4762 - M16 x 45 - 10.9

2) Special version

Safety instructions: Type-examination tested safety valves type DBDS 1)

Before ordering a type-examination tested safety valve, it must be observed that for the desired response pressure p, the maximum admissible flow qVmax of the safety valve must be larger than the maximum possible flow of the system/accumulator to be secured. According to the Pressure Equipment Directive 2014/68/EU, the increase in the system pressure due to the flow must not exceed 10 % of the set response pressure (see component marking). The maximum admissible flow qVmax stated in the component marking must not be exceeded. Discharge lines of safety valves must end in a risk-free manner. Fluid must not accumulate in the discharge system (see data sheet AD2000 A2).

 

Always observe application notes!

In the plant, the response pressure specified in the component marking is set at a flow of 2 l/min. The maximum flow stated in the component marking applies for applications without counter pressure in the discharge line (port T). By removing the lead seal at the safety valve, the approval according to the Pressure Equipment Directive becomes void! Basically, the requirements of the Pressure Equipment Directive and of data sheet AD 2000 A2 have to be observed! It is recommended to secure type-examination tested safety valves against inadmissible disassembly by means of wiring and sealing with the housing/block (bore available in the adjustment type).

 

Notice:

The system pressure increases by the counter pressure in the discharge line (port T) due to the increasing flow. (Observe the data sheet AD 2000 A 2, point 6.3!) To ensure that this increase in system pressure caused by the flow does not exceed the value of 10 % of the set response pressure, the admissible flow has to be reduced dependent on the counter pressure in the discharge line (port T) (see diagrams/characteristic curves).

 

1) Component series 1X, according to the Pressure Equipment Directive 2014/68/EU