Accumulator shut-off block. Type ABZSS. Contents. RE Edition: Replaces: 05.13

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1 Accumulator shut-off block Type ABZSS RE 011 Edition: Replaces: 0.1 Nominal diameter DN08; DN10; DN20; DN0 Component series X Maximum operating pressure 0 bar [07 psi] HAD8066 Contents Features 1 Ordering code 2, Symbols, function 4 Preferred types, 6 Technical data 7 Characteristic curves 8 Dimensions 9 14 Special versions 1 Tightening torque 16 Mating connectors 16 Accessories Type-examination tested safety valves type DBD E according to Pressure Equipment Directive 2014/68/EU (in the following shortly PED) Safety instructions 20 Characteristic curves 21 2 Further information 26 RE 011, edition: , Bosch Rexroth AG

2 2/26 ABZSS Accumulator shut-off block Ordering code ABZSS X / E / * 01 Accumulator shut-off block ABZSS Type of connection 02 Piping connection no code Subplate mounting Nominal diameter 0 DN08 08 DN10 10 DN20 20 DN0 0 Unloading 04 Manual M Manual and electro-magnetic (without manual override) E 2) Component series 0 Component series 0 9 (0 9: unchanged installation and connection dimensions) X Pressure adjustment (others upon request) 06 0 bar [70 psi] bar [140 psi] bar [200 psi] bar [00 psi] bar [07 psi] 0 ) 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 S0 With BSP thread G/4 DN08 S108 DN10; DN20 S1 DN08 S10 DN10; DN20 S10 With BSP thread G1 1/4 DN08 S107 DN10; DN20 S12 DN0 S07 With BSP thread G2 DN08 S109 DN10; DN20 S1 DN0 S09 -P 1) Notice: Preferred types and standard units are contained in the EPS (standard price list). Bosch Rexroth AG, RE 011, edition:

3 Accumulator shut-off block ABZSS /26 Ordering code ABZSS X / E / * Accumulator adapter 08 With SAE thread /4-16 UNF DN10; DN20 With SAE thread 1 1/18-12 UN DN10; DN20 With SAE thread 1 /8-12 UN DN10; DN20 DN0 With SAE thread 1 7/8-12 UN DN10; DN20 DN0 S64 S60 S62 S620 S6 S60 Voltage type ) 09 Direct voltage 24 V G24 Alternating voltage 110 V G96 8) Alternating voltage 20 V G20 8) Electrical connection ) 10 Without mating connector with protective cap K4 6) Seal material 11 FKM seals V NBR seals for water glycol HFC W 7) Connection thread 12 BSP thread (ISO 228 Part 1) no code SAE thread (ANSI B1.1) 12 2) Special versions 1 DN0 with DBDS valve NG0 SO0 Shut-off device (2 positions) DN10 DN0 10 Shut-off device (1 position) DN10 DN0 104 Connection thread 14 Further details in the plain text 1) "DN0" only 2) Not with "DN08" ) Type SO0 is supplied with a pressure rating of 1 bar [470 psi] 4) According to the Pressure Equipment Directive 2014/68/EU ) Only with electro-magnetic unloading design "E" 6) Mating connectors, separate order, see page 16 and data sheet ) Special version 8) For the connection to the AC voltage mains, a DC solenoid which is controlled by a rectifier is to be used (see table on the right). For individual connection, a large mating connector with integrated rectifier can be used (separate order, see page 16). AC voltage mains (admissible voltage tolerance ±10%) 110 V - 0/60 Hz 120 V - 60 Hz Nominal voltage of the DC solenoid in case of operation with alternating voltage Ordering code 96 V G96 20V - 0/60Hz 20 V G20 Notice: Unlike the ABZSS0 standard accumulator safety block, the ABZSS0 SO0 is equipped with a direct operated pressure relief valve NG0. Version ABZSS-P0 for subplate mounting. RE 011, edition: , Bosch Rexroth AG

4 4/26 ABZSS Accumulator shut-off block Symbols DN08 Version "M" (manual unloading) DN10, 20 and 0 Version "M" (manual unloading) S S M1 M2 M P2 2 P1 T 1, P 1 T 2 Version "E" (manual and electro-magnetic unloading) S P T M1 M a b Connection designation M; M1; M2 Measuring port P; P1; P2 Pump port S Accumulator port T Tank port 1 System shut-off cock 2 Pressure relief valve Manual unloading 4 Electro-magnetic unloading, optional 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. 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. Bosch Rexroth AG, RE 011, edition:

5 Accumulator shut-off block ABZSS /26 Preferred types Accumulator type Data sheet Accumulator NG in l [gal] Pressure set at the pressure relief valve in bar [psi] Accumulator shut-off block DN Denomination Material no. 0. [0.1] 160 [220] 08 ABZSS 08 M-X/160E/S104V R ABZSS 10 M-X/160E/S0V R [0.18] 180 [2610] 20 [62] 08 ABZSS 08 M-X/180E/S104V R ABZSS 10 M-X/180E/S0V R ABZSS 08 M-X/260E/S104V R ABZSS 10 M-X/260E/S0V R Diaphragm type accumulator [0.26] 200 [2900] 1.4 [0.7] 2.0 [0.] 140 [200] 20 [62] 100 [140] 20 [62] 08 ABZSS 08 M-X/200E/S104V R ABZSS 10 M-X/200E/S0V R ABZSS 08 M-X/140E/S104V R ABZSS 10 M-X/140E/S0V R ABZSS 08 M-X/260E/S104V R ABZSS 10 M-X/260E/S0V R ABZSS 08 M-X/100E/S108V R ABZSS 10 M-X/100E/S1V R ABZSS 08 M-X/260E/S108V R ABZSS 10 M-X/260E/S1V R [0.74] 70 [101] 20 [62] 08 ABZSS 08 M-X/070E/S108V R ABZSS 10 M-X/070E/S1V R ABZSS 08 M-X/260E/S108V R ABZSS 10 M-X/260E/S1V R [0.91] 20 [62] 08 ABZSS 08 M-X/260E/S108V R ABZSS 10 M-X/260E/S1V R [0.26] 08 ABZSS 08 M-X/0E/S10V R ABZSS 10 M-X/0E/S10V R Bladder-type accumulator [0.66] 4.0 [1.06] 6.0 [1.6] 10 [2.64] 20 [.28] 2 [8.4] 0 [1.2] 0 [07] 0 [478] 08 ABZSS 08 M-X/0E/S107V R ABZSS 10 M-X/0E/S12V R ABZSS 08 M-X/0E/S107V R ABZSS 10 M-X/0E/S12V R ABZSS 08 M-X/0E/S107V R ABZSS 10 M-X/0E/S12V R ABZSS 20 M-X/0E/S1V R ABZSS 0 M-X/0E/S 09V ABZSS-P 0 M-X/0E/S09V ABZSS 0 M-X/0E/S 09V ABZSS-P 0 M-X/0E/S09V R R R R Notice: Preferred types and standard units are contained in the EPS (standard price list). RE 011, edition: , Bosch Rexroth AG

6 6/26 ABZSS Accumulator shut-off block Preferred types Accumulator type Data sheet Accumulator NG in l [gal] Pressure set at the pressure relief valve in bar [psi] Accumulator shut-off block DN Denomination Material no. 0. [0.1] 160 [220] 10 ABZSS 10 E-X/160E/S0G R [0.18] 180 [2610] [62] 10 ABZSS 10 E-X/180E/S0G ABZSS 10 E-X/260E/S0G R R Diaphragm type accumulator [0.26] 200 [2900] [0.7] 2.0 [0.] 140 [2020] [62] [140] [62] 10 ABZSS 10 E-X/200E/S0G ABZSS 10 E-X/140E/S0G ABZSS 10 E-X/260E/S0G ABZSS 10 E-X/100E/S1G ABZSS 10 E-X/260E/S1G R R R R R [0.74] 70 [101] [62] 10. [0.91] 10 ABZSS 10 E-X/070E/S1G ABZSS 10 E-X/260E/S1G ABZSS 10 E-X/260E/S1G R R R [0.26] 10 ABZSS 10 E-X/0E/S10G R Bladder-type accumulator [0.66] 10 0 [07] 4.0 [1.06] [1.6] [2.64] 20 [.28] 2 [8.4] 0 [1.2] 0 [478] 20 0 ABZSS 10 E-X/0E/S12G ABZSS 10 E-X/0E/S12G ABZSS 10 E-X/0E/S12G ABZSS 20 E-X/0E/S1G ABZSS 0 E-X/0E/S 09G ABZSS-P 0 E-X/0E/S 09G ABZSS 0 E-X/0E/S 09G ABZSS-P 0 E-X/0E/S 09G R R R R R R R R Notice: Preferred types and standard units are contained in the EPS (standard price list). Bosch Rexroth AG, RE 011, edition:

7 Accumulator shut-off block ABZSS 7/26 Technical data (For application outside these values, please consult us!) general Nominal diameter DN S00 P0 Weight Version "M" Version "E" kg [lbs] kg [lbs] 4.0 [8.8].2 [11.]. [12.1] Operating temperature range C [ F] [+ +176] 8. [18.7] 8.8 [19.4] 20. [4.2] 20.8 [4.8] 26. [8.4] 26.8 [9.1].1 [72.8].4 [7.] hydraulic Maximum operating pressure bar [psi] 0 [076] Seal material FKM seals or NBR seals 1) Block material Hydraulic fluid Maximum admissible degree of contamination of the hydraulic fluid Cleanliness class according to ISO 4406 (c) Steel See table below Class 20/18/1 2) Hydraulic fluid Classification Suitable sealing materials Standards Mineral oils HL, HLP, HLPD, HVLP, HVLPD NBR, FKM DIN Bio-degradable Data sheet Insoluble in water HETG NBR, FKM ISO HEES Soluble in water HEPG FKM ISO 180 FKM Important notices 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 6029 With connector "K4" IP 6 (with mating connector mounted and locked) 1) Special version 2) 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 RE 011, edition: , Bosch Rexroth AG

8 8/26 ABZSS Accumulator shut-off block Characteristic curves: Type-examination tested safety valves type DBD 1) Size 6 (ABZSS 08, 10) Size 10 (ABZSS 20) [801] 400 [801] 400 Operating pressure in bar [psi] [41] 00 [2901] 200 [1610] 111 [140] 100 [1160] 80 [870] 60 [72] 0 [80] 40 [4] [0] [2] [4] [6] [8] [10] [12] [1.7] Operating pressure in bar [psi] [41] 00 [2901] 200 [2480] [220] [2176] 10 [1740] 120 [140] 100 [1160] 80 [870] [72] [80] [4] [0] [] [10] [1] [20] [2] [0] [7] Flow in l/min [US gpm] Flow in l/min [US gpm] Size 20 (ABZSS 0, -P0) Size 0 (ABZSS 0 SO0) Operating pressure in bar [psi] [801] 400 [48] 16 [41] 00 [771] [190] [2901] 200 [2610] 180 [220] 160 [200] 140 [1740] 120 [140] 100 [1160] [870] [72] [80] Operating pressure in bar [psi] [801] 400 [48] 16 [41] [771] 260 [190] 220 [2901] 200 [2610] 180 [220] 160 [200] 140 [1740] 120 [140] 100 [1160] [870] [72] [80] [4] [4] [0] [] [10] [1] [20] [2] [0] [] [40] [47.] Flow in l/min [US gpm] [0] [10] [20] [0] [40] [0] [60] [70] [80] [9] Flow in l/min [US gpm] Notice: Value pairs located in the areas of the characteristic curves with gray background can not 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 Bosch Rexroth AG, RE 011, edition:

9 Accumulator shut-off block ABZSS 9/26 Dimensions: Version "08 " (DN08) (dimensions in mm [inch]) 4 x Ø9 [4 x Ø0.] 4 42 [1.6] 22, [0.89] 1 M P1 9 [.74] 110 [4.] 1 [0.9] P2 7 [1.46] 7 [1.46] P2 2, [0.92] 70 [2.76] 180 [7.09] 1 [0.9] 9 [1.4] 6 [2.6] 78, [.09] 9 [.74] 100 [.94] 2, 6 9 [1.4] 4 [1.77] 17 [6.89] 180 [7.09] Connection thread BSP M1; M2 Measuring port G1/4 P1 Pump port G/8 P2 Pump port G1/2 T Tank port G1/4 S Accumulator port M20 x 1. 1) 1) Mounting cavity according to DIN EN Item explanations see page 16 Characteristic curves for type-examination tested safety valves type DBDS can be found on page 8 RE 011, edition: , Bosch Rexroth AG

10 10/26 ABZSS Accumulator shut-off block Dimensions: Version "10 " (DN10) (dimensions in mm [inch]) 2 [0.98] 4 42 [1.6] [0.2] 2x Ø9 [0.] M1 T 6 [2.48] 100 [.94] 117 [4.61] 7 nur bei ABZSS 10 E P 46 [1.81] M2 92 [.62] 192 [7.6] 8 [0.2] [1.8] 8 [.] 94 [.70] 110 [4.] 2 M1 (T) 48 [1.89] 67 [2.64] 208 [8.19] 190 [7.48] M2 1 [2.01] Connection thread BSP SAE M1; M2 Measuring port G1/4 7/6 20 UNF P Pump port G1/2 /4-16 UNF T Tank port G/8 9/16-18 UNF S Accumulator port M x 2 M x 2 Item explanations see page 16 Characteristic curves for type-examination tested safety valves type DBDS can be found on page 8 Bosch Rexroth AG, RE 011, edition:

11 Accumulator shut-off block ABZSS 11/26 Dimensions: Version "20 " (DN20) (dimensions in mm [inch]) [1.0] 4 9, [1.6] M2 120 [4.72] 14 [.6] 7 nur bei ABZSS 20 E M1 T 41 [1.61] P 28 [10.1] 97 [.82] 2 9, [1.6] 18 [.4] 10 [.12] M1 (T) 47 [1.8] 7 [2.9] 24 [9.21] 204 [8.0] M2 68 [2.68] Connection thread BSP SAE M1; M2 Measuring port G1/4 7/6 20 UNF P Pump port G1 1 /16-12 UNF T Tank port G1/2 /4-16 UNF S Accumulator port M x 2 M x 2 Item explanations see page 16 Characteristic curves for type-examination tested safety valves type DBDS can be found on page 8 RE 011, edition: , Bosch Rexroth AG

12 12/26 ABZSS Accumulator shut-off block Dimensions: Version "0 " (DN0) (dimensions in mm [inch]) 0 [1.97] 9 0 [1.97] [6.0] 181 [7.1] 7 nur bei ABZSS 0 E M2 M1 T 4, [1.78] 12 [4.92] 2 P 0 [1.97] 191 [7.2] 1 [1.82] 17 [6.89] M1 (T) 6 [2.20] 10 [4.06] 281 [11.06] 28 [11.14] M2 88 [.46] Connection thread BSP SAE M1; M2 Measuring port G1/4 7/6 20 UNF P Pump port G1 1/2 1 7/8-12 UNF T Tank port G1 1 /16-12 UNF S Accumulator port (flange) Page 16 Page 19 Item explanations see page 16 Characteristic curves for type-examination tested safety valves type DBDS can be found on page 8 Bosch Rexroth AG, RE 011, edition:

13 Accumulator shut-off block ABZSS 1/26 Dimensions: Version "0 SO0" (DN0) (dimensions in mm [inch]) 0 [1.97] [1.97] 1 8 M1 182 [7.17] 20 [7.99] 7 nur bei ABZSS 0 E M2 T 9 [1.4] 10 [.91] 2 P 0 [1.97] 191 [7.2] 7 [14.69] 200 [7.87] M1 (T) 6 [2.20] 10 [4.06] 281 [11.06] 294 [11.7] M2 68 [2.68] Connection thread BSP SAE M1; M2 Measuring port G1/4 7/6 20 UNF P Pump port G1 1/2 1 7/8-12 UNF T Tank port G1 1/2 1 7/8-12 UNF S Accumulator port (flange) Page 16 Page 19 Item explanations see page 16 Characteristic curves for type-examination tested safety valves type DBDS can be found on page 8 RE 011, edition: , Bosch Rexroth AG

14 14/26 ABZSS Accumulator shut-off block Dimensions: Version "P0 " subplate mounting (DN0) (dimension in mm [inch]) [1.18] 190 [7.48] nur bei ABZSS P 0 E M2 2 [0.98] 08 [12.1] 12 T P T (P) 2 [2.0] 0,01/100 [0.0004/4.0] 11 11, [4.] 142 [.9] Rzmax4 28 [11.22] 142 [.9] 74,2 [2.92] 14,9 [0.9] max. 0 [max. 1.18] max. 8 [max. 1.0] M1 (T) (P) 1 [0.1] 6 [2.48] 129 [.08] 1 [6.10] 217 [8.4] 4 x M16x26/1 [4 x M16x1.02/1.22] 6 [2.48] 129 [.08] 7,1 [1.46] 74,2 [2.92] 100,6 [.96] 28 [11.22] Connection thread BSP SAE M1; M2 Measuring port G1/4 7/6 20 UNF S Accumulator port Page Page 19 (flange) 16 Item explanations see page 16 Characteristic curves for type-examination tested safety valves type DBDS can be found on page 8 Bosch Rexroth AG, RE 011, edition:

15 Accumulator shut-off block ABZSS 1/26 Dimensions: Special versions "SO10" and "SO104" (for NG10 to NG0 only) "SO10" shut-off device with two shut-off positions (open or closed) "SO104" shut-off device with one shut-off position (closed) (padlock not included in the scope of delivery) RE 011, edition: , Bosch Rexroth AG

16 16/26 ABZSS Accumulator shut-off block Dimensions 1 Block 2 System shut-off cock Pressure relief valve, tightening torque see page 16 4 Accumulator adapter, see Accessories on page Name plate 6 Manual unloading 7 Electro-magnetic unloading, optional 8 Mating connector, separate order, see page 16 9 Hexagon socket head cap screws 4 pieces ISO M16 x Tightening torque M A = Nm [ ft-ibs] 10 Hexagon socket head cap screws 4 pieces ISO M16 x Tightening torque M A = Nm [ ft-ibs] 11 R-ring 42. x.00 x.00 Shore R-ring 4.2 x. x. Shore 90 Tightening torque: Pressure relief valve DBD Tightening torques M A in Nm [ft-lbs] for screw-in cartridge valves 1) Pressure rating in bar [psi] NG up to 200 [2900] up to 400 [800] 6 0± [7±.7] 80± [9±4] ± [74±.] 10±10 [110±.] 20 10±10 [111±7.] 00±1 [221±11] 0 0±20 [28±19.] 00±0 [69±22] 1) The tightening torques are guidelines with a friction coefficient µ total = 0.12 and when using a manual torque wrench. Mating connectors according to DIN EN For details and more mating connectors see data sheet Valve side Color Without circuitry With indicator light V Material number With rectifier V With indicator light and Zener diode suppression circuit 24 V a gray R b black R a/b black R R R Bosch Rexroth AG, RE 011, edition:

17 Accumulator shut-off block ABZSS 17/26 Accessories: Accumulator adapter BSP thread, maximum operating pressure 0 bar [07 psi] (dimensions in mm [inch]) 19 [0.7] 2, [0.10] Fig. 1 O1 Nominal version ABZSS ØD1 D M ØD2 S Accumulator type Diaphragm type accumulator data sheet 010 H1 H2 O Accumulator DN Accumulator adapter S0 1) 19 [0.7] 2, [0.10] O1 D M ØD2 H2 H1 S Fig. 2 Fig. S104 2) 1 S1 1) S108 2) S10 1) S10 2) O Ø18 [Ø0.71] O1 D Ø10 [Ø4.1] 100 [.94] Fig. D ØD1 ØD2 H1 H2 M O O1 S G1/2A G/4A G/4A 26.9 [1.06] 2 [1.26] 9.9 [1.7] 1).0 [1.7] 2) 14 [0.] 16 [0.6] 28 [1.10] 19. [0.76] [0.68] 2) 19. [0.76] 1 18 [0.70] 1. [0.61] 2) x2 1) ; 20x1. 2) 29.7x2.8 1) ; 24x2.0 2) Profile seal ring G1/2A according to DIN 869 Profile seal ring G/4A according to DIN x2. [0.71x0.10] H2 H1 O S0 1), S1 1), S108 2), Wrench size 41 [1.61A/F], S104 2) Wrench size 6 [1.41A/F] Wrench size 41 [1.61A/F] 1) Wrench size 6 [1.41A/F] 2) ABZSS 0 P0 Bladder-type accumulator data sheet S12 1) S107 2) S1 1) S109 2) S07 S09 2 G2A G1 1/4A G2A G1 1/4A 4 [1.69] 7 [1.46] 4 [1.69] 7 [1.46] 16. [0.6] 1) 20. [0.81] [0.7] 0 [1.18] 17. [0.68] 2) 2) 6.2 x. 0x [1.18x0.12] 48x [1.89x0.12] [1.18x0.12] 48x [1.89x0.12] Wrench size 46 [1.81A/F] Wrench size 6 [2.A/F] 1) applies to ABZSS10 and ABZSS20 only 2) applies to ABZSS08 only RE 011, edition: , Bosch Rexroth AG

18 18/26 ABZSS Accumulator shut-off block Accessories: ordering code accumulator adapter BSP thread Version ACCUMULATOR ADAPTER Material no. FKM ACCUMULATOR ADAPTER Material no. NBR 2) S10 S10V/G/4-MX2 *BG R S10M/G/4-MX2 *BG R S12 S12V/G1 1/4-MX2 *BG R90042 S12M/G1 1/4-MX2 *BG R S1 S1V/G2-MX2 *BG R S1M/G2-MX2 *BG R S0 S0V/G1/2-MX2 *BG R S0M/G1/2-MX2 *BG R S1 S1V/G/4-MX2 *BG R90042 S1M/G/4-MX2 *BG R S104 S104V/G1/2-M20X1.* & R S104M/G1/2-M20X1.* & R S10 S10V/G/4-M20X1.* & R S10M/G/4-M20X1.* & R S107 S107V/G11/4-M20X1.*& R S107M/G11/4-M20X1.*& R S108 S108V/G/4-M20X1.* & R S108M/G/4-M20X1.* & R S109 S109V/G2-M20X1,* & R S109M/G2-M20X1,* & R S07 1) S07V/G 11/4-DN2 *BG R S07M/G 11/4-DN2 *BG R S09 1) S09V/G2-DN2 *BG R S09M/G2-DN2 *BG R ) Scope of delivery includes 4 hexagon socket head cap screws ISO 4762-M16 x ) Special version Bosch Rexroth AG, RE 011, edition:

19 Accumulator shut-off block ABZSS 19/26 Accessories: Accumulator adapter SAE thread, maximum operating pressure 0 bar [07 psi] (dimensions in mm [inch]) O-ring ØD1 D ØD1 D 19 [0.7] 2, [0.10] H1 M x 2 Ø9,9 [Ø1.7] Fig. 1 S Fig. 2 H2 29,7 x 2,8 [1.17 x 0.11] O-ring Ø18 [Ø0.71] Ø10 [Ø4.1] 100 [.94] H2 H1 7,7 x, [1.48 x 0.14] Nominal version ABZSS Accumulator type Diaphragm type accumulator data sheet 010 Accumulator DN Accumulator adapter S64 S S60 Fig. S H1 H2 D ØD1 O-ring 1 Wrench size 41 [1.61A/F] Wrench size 41 [1.61A/F] 11.4 [0.4] 1.2 [0.60] 1.2 [0.60] 18.1 [0.71] 18. [0.72] 18. [0.72] /4-16UNF-2A 1 1/16-12UN- 2A 1 1/16-12UN- 2A 2 [0.91] 2 [1.26] 2 [1.26] 16.6 x 2.21 [0.64 x 0.87] 2.0 x.0 [0.91 x 0.12] 2.0 x.0 [0.91 x 0.12] ABZSS 0 Bladder-type accumulator data sheet S62 S6 S620 S60 1 Wrench size 6 [2.A/F] Wrench size 6 [2.A/F] [0.60] 1.2 [0.60] 1.2 [0.60] 1.2 [0.60] 20. [0.80] 20. [0.80].8 [1.].8 [1.] 1 /8-12UN-2A 1 7/8-12UN-2A 1 /8-12UN-2A 1 7/8-12UN-2A 48 [1.89] 4 [2.1] 48 [1.89] 4 [2.1] 8.0 x.0 [1.0 x 0.12] 44.0 x.0 [1.7 x 0.12] 8.0 x.0 [1.0 x 0.12] 44.0 x.0 [1.7 x 0.12] RE 011, edition: , Bosch Rexroth AG

20 20/26 ABZSS Accumulator shut-off block Accessories: ordering code accumulator adapter SAE thread Version ACCUMULATOR ADAPTER Material no. FKM ACCUMULATOR ADAPTER Material no. NBR 2) S60 S60V/ 1 1/16-12UN-Mx2 R S60M/ 1 1/16-12UN-Mx2 R S62 S62V/ 1 /8-12UN-Mx2 R S62M/ 1 /8-12UN-Mx2 R S6 S6V/ 1 7/8-12UN-Mx2 R S6M/ 1 7/8-12UN-Mx2 R S64 S64V/ /4-16UNF-Mx2 R S64M/ /4-16UNF-Mx2 R S620 1) S620V/ 1 /8-12UN-DN2 R S620M/ 1 /8-12UN-DN2 R S60 1) S60V/ 1 7/8-12UN-DN2 R S60M/ 1 7/8-12UN-DN2 R ) Scope of delivery includes 4 hexagon socket head cap screws ISO 4762-M16 x ) Special version Safety instructions: Type-examination tested safety valves type DBDS 1) Before ordering a type-examination tested safety valve, ensure that for the desired response pressure p, the maximum admissible flow q Vmax of the safety valve is 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 q Vmax stated in the component marking must not be exceeded. Discharge lines of safety valves must end in a risk-free manner. An accumulation of fluids in the discharge system must not be possible (see data sheet AD2000 A2). It is imperative to observe the application notes! In the plant, the response pressure specified in the component marking is set at a flow of 2 l/min [0. US gpm]. 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 wiring and sealing them 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.!) To ensure that this increase in system pressure caused by the flow does not exceed 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 on page 22 2). 1) Component series 1X according to the Pressure Equipment Directive 2014/68/EU Bosch Rexroth AG, RE 011, edition:

21 Accumulator shut-off block ABZSS 21/26 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 p T in the discharge line and flow q V, 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 p T is in each case 10% of the response pressure. With increasing flow, the maximum counter pressure p T decreases. Interpolation of intermediate values from the diagram 1. At the axis p T, mark 1/10 of the value of p A. 2. Determine the next lower and the next higher characteristic curve for this point. The point marked at p T divides the section between lower and higher characteristic curve on the p T axis with a certain percentage.. At the q Vmax axis, divide the section between next lower and next higher characteristic curve in the same percentage as the section at the p T axis. From the zero position flow on the q Vmax axis determined in that way, draw a straight line to the value on the p T axis marked before. 4. Mark the system flow to be secured at the q Vmax axis.. Read off the maximum counter pressure for this value using the line at the p T axis drawn before. RE 011, edition: , Bosch Rexroth AG

22 22/26 ABZSS Accumulator shut-off block Characteristic curves: Counter pressure in the discharge line size 6 Diagram for determining the maximum counter pressure p T in the discharge line at port T of the valve dependent on the flow q Vmax for valves DBDS 6...1X/...E with different response pressures p A. p A [bar] , 22, , % 6 p T [bar] x% 2 I x% % II Characteristic curves q Vmax [l/min] Response pressure p A in bar [psi] 1 0 [4] 2 60 [870] 110 [19] 4 11 [1668] 170 [246] [046] 7 1 [468] [800] Characteristic curves for intermediate values can be generated by interpolation. Further explanations can be found on page 21. p A Response pressure in bar p T Maximum counter pressure in the discharge line (port T) in bar q Vmax I II Maximum flow in l/min Interpolation area I, for valves with p A = bar and q Vmax = l/min Interpolation area II, for valves with p A = bar and q Vmax = 2 l/min Determination of the maximum counter pressure Example 1 (with already existing characteristic curve): Flow of the system / accumulator to be secured: q Vmax = 1 l/min Safety valve set to: p A = 1 bar. Read off the maximum counter pressure p T of approx. 22. bar from the diagram (see arrows, characteristic curve 7). Example 2 (with interpolated characteristic curve): Flow of the system / accumulator to be secured: q Vmax = 1 l/min Safety valve set to: p A = 80 bar. Value to be marked at the axis referred to as p T : 1/10 x 80 bar = 8 bar. Read off the maximum counter pressure p T of approx. bar from the diagram (see arrows, dashed characteristic curve). Bosch Rexroth AG, RE 011, edition:

23 Accumulator shut-off block ABZSS 2/26 Characteristic curves: Counter pressure in the discharge line size 10 Diagram for determining the maximum counter pressure p T in the discharge line at port T of the valve dependent on the flow q Vmax for valves DBDS X/...E with different response pressures p A. p A [bar] p T [bar] , 1, 22, 21 11, Characteristic curves Response pressure p A in bar [psi] 1 0 [4] 2 60 [870] 110 [19] [246] 17 [28] [046] 7 1 [468] [800] 9 40 [874] [910] Characteristic curves for intermediate values can be generated by interpolation. Further explanations can be found on page q Vmax [l/min] p A Response pressure in bar p T Maximum counter pressure in the discharge line (port T) in bar q Vmax Maximum flow in l/min Interpolation areas RE 011, edition: , Bosch Rexroth AG

24 24/26 ABZSS Accumulator shut-off block Characteristic curves: Counter pressure in the discharge line size 20 Diagram for determining the maximum admissible counter pressure p T in the discharge line at port T of the valve dependent on the flow q Vmax for valves DBDS X/...E with different response pressures p A. p A [bar] 400 p T [bar] , q Vmax [l/min] p A Response pressure in bar p T Maximum counter pressure in the discharge line (port T) in bar Maximum flow in l/min q Vmax Characteristic curves Response pressure p A in bar [psi] 1 0 [4] 2 60 [870] 110 [19] [246] 210 [046] 6 1 [468] 7 20 [4641] [800] Characteristic curves for intermediate values can be generated by interpolation. Further explanations can be found on page 21. Bosch Rexroth AG, RE 011, edition:

25 Accumulator shut-off block ABZSS 2/26 Characteristic curves: Counter pressure in the discharge line size 0 Diagram for determining the maximum counter pressure p T in the discharge line at port T of the valve dependent on the flow q Vmax for valves DBDS 0...1X/...E with different response pressures p A. p A [bar] 400 p T [bar] , q Vmax [l/min] p A Response pressure in bar p T Maximum counter pressure in the discharge line (port T) in bar Maximum flow in l/min q Vmax Characteristic curves Response pressure p A in bar [psi] 1 0 [4] 2 60 [870] 110 [19] [246] 210 [046] 6 1 [468] Characteristic curves for intermediate values can be generated by interpolation. Further explanations can be found on page 21. RE 011, edition: , Bosch Rexroth AG

26 26/26 ABZSS Accumulator shut-off block Further information Accumulator shut-off block 2/2 directional seat valve, direct operated with solenoid actuation Pressure relief valve, direct operated Hydraulic fluids on mineral oil basis Operating instructions 0129-B Data sheet Data sheet 2402 Data sheet Environmentally compatible hydraulic fluids Data sheet Hexagon socket head cap screw, metric/unc Data sheet 0896 Hydraulic valves for industrial applications Operating instructions B General product information on hydraulic products Data sheet Selection of the filters Information on available spare parts Bosch Rexroth AG Hydraulics Zum Eisengießer Lohr am Main, Germany Phone +49 (0) 9 2 / 18-0 documentation@boschrexroth.de This document, as well as the data, specifications and other information set forth in it, are the exclusive property of Bosch Rexroth AG. It may not be reproduced or given to third parties without its consent. The data specified above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application can be derived from our information. The information given does not release the user from the obligation of own judgment and verification. It must be remembered that our products are subject to a natural process of wear and aging. Bosch Rexroth AG, RE 011, edition:

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