Hydraulic Diaphragm Metering Pump ORLITA Evolution

Capacity range of single-head pump: 3 – 7400 l/h, 400 – 10 bar

The ORLITA Evolution meets the most exacting safety requirements as an extremely robust hydraulic diaphragm metering pump. It is characterised by its PTFE multi-layer diaphragm with integral diaphragm rupture warning/signalling and unique diaphragm position control.

Maximum Process Reliability and Flexibility.

The ORLITA Evolution hydraulic diaphragm metering pump range of EF1a, EF2a, EF3a and EF4a form an integrated product range with stroke lengths of 15 to 40 mm. This covers the capacity range of 3 to 7,400 l/h at 400 – 10 bar. A wide range of drive versions is available, including some with ATEX certification for use in Zone 1 or Zone 2 areas at risk from explosion. The ORLITA Evolution product range is designed to comply with API 675.

Your benefits

Maximum process reliability:

  • PTFE multi-layer diaphragm with integral diaphragm rupture warning / signalling system
  • Integral hydraulic relief valve
  • The new diaphragm position control protects against impermissible operating statuses (e.g. no damage in the event of a blockage on the suction or discharge side)
  • The dosing precision is better than ± 1 % within the 10-100 % stroke length adjustment range under defined conditions and with correct installation
  • Continuous bleeding of the oil chamber ensures reliable operation

Excellent flexibility:

  • The modular and compact construction with single and multiple pump versions permits a wide range of applications. In multiple pump systems up to 5 metering units can be combined, including units with different pump capacities

Technical Details

  • Stroke length: 0 – 16 mm (Evo 1, Evo 2), 0 – 25 mm (Evo 3), 0 – 40 mm (Evo 4)
  • Rod force: 2600 N (Evo 1), 5400 N (Evo 2), 8000 N (Evo 3), 15,700 N (Evo 4)
  • Stroke length adjustment range: 0 – 100%. Stroke length adjustment: manually using manual adjustment wheel and scaled display (optionally with electric actuator or control drive). A fixed stroke variant in accordance with API 674 is also available as an alternative
  • The dosing precision is better than ± 1 % within the 10 – 100 % stroke length range under defined conditions and with correct installation
  • PTFE multi-layer diaphragm with electrical diaphragm rupture warning / signalling system via a contact
  • Integrated hydraulic relief and vent valve
  • Wetted materials:  Stainless steel 1.4404, special designs available on request Plastics PVC, PVDF, special designs available on request
  • A wide range of power end/drive versions is available: Three-phase AC standard motors also for use in areas at risk from explosion, different flange designs for use of customer-specific motors
  • Degree of protection: IP 55
  • Design in compliance with API 675 / API 674 among others

ORLITA Evolution EF1a

Technical data for Evolution EF1a single head pump 50 Hz SST

Plunger Ø Max. pressure Max. pump capacity in l/h at strokes/min Theor. stroke volume Suction lift Connection on suction/discharge side Shipping weight
71 97 116 145 165 181 201
mm bar l/h l/h l/h l/h l/h l/h l/h ml/stroke m WC G-DN kg
8 400 1.5 2.0 2.4 3.0 3.4 3.8 4.2 0.80 3.0 DN 3 80
10 337 3.3 4.5 5.3 6.7 7.6 8.3 9.2 1.26 3.0 DN 3 80
11 278 4.6 6.3 7.5 9.4 10.7 11.7 13.0 1.52 3.0 DN 6 80
12 234 5.9 8.1 9.7 12.1 13.8 15.1 16.8 1.81 3.0 DN 6 80
13 200 7.5 10.3 12.3 15.3 17.5 19.1 21.3 2.12 3.0 DN 6 80
14 172 6.5 8.9 10.6 13.3 15.1 16.6 18.4 2.46 3.0 DN 6 80
15 150 8.1 11.0 13.2 16.5 18.8 20.6 22.9 2.83 3.0 DN 6 80
16 132 9.9 13.5 16.1 20.2 22.9 25.2 27.9 3.22 3.0 DN 6 80
17 117 11.9 16.3 19.5 24.3 27.7 30.4 33.7 3.63 3.0 DN 6 80
18 104 14.2 19.4 23.2 29.1 33.1 36.3 40.3 4.07 3.0 DN 6 80
19 93 16.8 23.0 27.5 34.3 39.1 42.9 47.6 4.54 3.0 DN 6 80
20 84 17.8 24.3 29.0 36.3 41.3 45.3 50.3 5.03 3.0 DN 10 80
21 76 20.1 27.4 32.8 41.0 46.6 51.2 56.8 5.54 3.0 DN 10 80
22 70 22.3 30.4 36.4 45.5 51.8 56.8 63.1 6.08 3.0 DN 10 80
23 64 24.6 33.6 40.3 50.3 57.3 62.8 69.8 6.65 3.0 DN 10 80
25 54 30.1 41.1 49.2 61.5 70.0 76.8 85.3 7.85 3.0 DN 10 80
29 40 42.8 58.4 69.9 87.4 99.4 109.0 121.1 10.57 3.0 DN 10 80
32 34 48.8 66.7 79.7 99.6 113.4 124.4 138.1 12.87 3.0 DN 10 80
38 25 71.9 98.2 117.5 146.8 167.1 183.3 203.5 18.15 3.0 DN 10 80
44 17 97.4 133.1 159.2 199.0 226.4 248.4 275.8 24.33 3.0 DN 16 80
47 14 111.2 151.9 181.6 227.0 258.3 283.4 314.7 27.76 3.0 DN 16 80
50 14 127.1 173.7 207.7 259.7 295.5 324.1 359.9 31.42 3.0 DN 16 80
54 12 148.3 202.6 242.3 302.9 344.6 378.1 419.8 36.64 3.0 DN 16 80
58 10 171.1 233.7 279.5 349.4 397.6 436.1 484.3 42.27 3.0 DN 16 80
60 10 183.1 250.1 299.1 373.9 425.5 466.7 518.3 45.24 3.0 DN 16 80

Valve type: Double ball valve up to DN 10, plate valve as of DN 16

Version PVC, PVDF max. 16 bar (slight deviation in pump capacity possible)

Technical data for Evolution EF1a single-head pump 60 Hz

Plunger Ø Max. pressure Max. pump capacity in l/h at strokes/min Theor. stroke volume Suction lift Connection on suction/discharge side Shipping weight
88 117 140 175 199
mm bar l/h l/h l/h l/h l/h ml/stroke m WC G-DN kg
8 400 1.8 2.4 2.9 3.6 4.1 0.80 3.0 DN 3 80
10 337 4.1 5.4 6.4 8.1 9.2 1.26 3.0 DN 3 80
11 278 5.7 7.6 9.1 11.3 12.9 1.52 3.0 DN 6 80
12 234 7.4 9.8 11.7 14.6 16.6 1.81 3.0 DN 6 80
13 200 9.3 12.4 14.8 18.5 21.1 2.12 3.0 DN 6 80
14 172 8.1 10.7 12.8 16.0 18.2 2.46 3.0 DN 6 80
15 150 10.0 13.3 15.9 19.9 22.6 2.83 3.0 DN 6 80
16 132 12.2 16.3 19.5 24.3 27.7 3.22 3.0 DN 6 80
17 117 14.8 19.6 23.5 29.4 33.4 3.63 3.0 DN 6 80
18 104 17.6 23.4 28.0 35.1 39.9 4.07 3.0 DN 6 80
19 93 20.8 27.7 33.2 41.4 47.1 4.54 3.0 DN 6 80
20 84 22.0 29.3 35.1 43.8 49.8 5.03 3.0 DN 10 80
21 76 24.9 33.1 39.6 49.5 56.2 5.54 3.0 DN 10 80
22 70 27.6 36.7 43.9 54.9 62.5 6.08 3.0 DN 10 80
23 64 30.5 40.6 48.6 60.7 69.1 6.65 3.0 DN 10 80
25 54 37.3 49.6 59.4 74.2 84.4 7.85 3.0 DN 10 80
29 40 53.0 70.5 84.3 105.4 119.9 10.57 3.0 DN 10 80
32 34 60.5 80.4 96.2 120.3 136.7 12.87 3.0 DN 10 80
38 25 89.1 118.5 141.8 177.2 201.5 18.15 3.0 DN 10 80
44 17 120.8 160.5 192.1 240.1 273.1 24.33 3.0 DN 16 80
47 14 137.8 183.2 219.1 274.0 311.6 27.76 3.0 DN 16 80
50 14 157.6 209.5 250.7 313.4 356.4 31.42 3.0 DN 16 80
54 12 183.8 244.4 292.4 365.5 415.7 36.64 3.0 DN 16 80
58 10 212.0 281.9 337.3 421.7 479.5 42.27 3.0 DN 16 80
60 10 226.9 301.7 361.0 451.3 513.2 45.24 3.0 DN 16 80

Valve type: Double ball valve up to DN 10, plate valve as of DN 16

Version PVC, PVDF max. 16 bar (slight deviation in pump capacity possible)

Important note:

Abridged presentation of our complete product range. Other types on request

Wetted materials for Evolution EF1a

Identity code of material Dosing head Diaphragm/diaphragm mounting screw Connection on suction/discharge side Seals Valve seats Valve balls up to DN 10 Valve plates/valve springs as of DN 16
S2 Stainless steel 1.4571/1.4404 PTFE / stainless steel 1.4462 Stainless steel 1.4404 stainless steel 1.4404 Stainless steel 1.4404 Al2O3 ceramic Stainless steel 1.4462
P1 PVDF PTFE / Hastelloy C PVDF PTFE PTFE Glass Ceramic / E-CTFE
V1 PVC PTFE / Hastelloy C PVDF PTFE PTFE Glass Ceramic / E-CTFE

Motor data for EVOLUTION EF1a single-head pump

Identity code specification Power supply Remarks
S 3-phase, IP 55 230 V/400 V 50 Hz 0.37 kW With PTC, speed control range 1:5
T 3-phase, IP 55 230 V/400 V
265 V/460 V
50 Hz
60 Hz
0.37 kW
L 3-phase, IP 55, II 2G Ex de IIC T4 Gb 230 V/400 V 50 Hz 0.37 kW With PTC, speed control range 1:5
Q 3-phase, IP 55, II 2G Ex de IIC T4 265 V/460 V 60 Hz 0.45 kW With PTC, speed control range 1:5
V 1-phase, IP 55 230 V 50 Hz 0.75 kW Variable speed stroke control motor with integrated frequency converter

ORLITA Evolution EF2a

Technical data for Evolution EF2a single-head pump 50 Hz

Plunger Ø Max. pressure Max. pump capacity in l/h at strokes/min Theor. stroke volume Suction lift Connection on suction/discharge side Shipping weight
71 97 116 145 165 181 201
mm bar l/h l/h l/h l/h l/h l/h l/h ml/stroke m WC G-DN kg
11 400 3.9 5.2 6.2 7.8 8.9 10.1 10.8 1.52 3.0 DN 6 95
12 400 5.5 7.3 8.7 10.9 12.4 14.0 15.1 1.81 3.0 DN 6 95
13 400 7.3 9.8 11.7 14.6 16.6 18.8 20.2 2.12 3.0 DN 6 95
14 400 3.8 5.1 6.0 7.6 8.5 9.7 10.4 2.46 3.0 DN 6 95
15 351 5.4 7.1 8.5 10.7 12.1 13.7 14.8 2.83 3.0 DN 6 95
16 309 7.3 9.7 11.6 14.5 16.5 18.7 20.1 3.22 3.0 DN 6 95
17 274 9.5 12.4 15.3 18.9 21.6 24.4 26.3 3.63 3.0 DN 6 95
18 244 12.2 16.2 19.4 24.2 27.6 31.2 33.6 4.07 3.0 DN 6 95
19 219 15.2 20.3 24.2 30.3 34.4 39.0 42.0 4.54 3.0 DN 6 95
20 198 16.1 21.4 26.5 31.9 36.3 41.2 44.3 5.03 3.0 DN 10 95
21 179 18.2 24.2 28.9 36.1 41.1 46.6 50.1 5.54 3.0 DN 10 95
22 163 20.5 27.2 32.5 40.6 46.2 52.4 56.3 6.08 3.0 DN 10 95
23 149 22.9 30.4 36.4 45.5 51.8 58.7 63.1 6.65 3.0 DN 10 95
25 127 28.4 37.7 45.1 56.3 64.1 72.7 78.1 7.85 3.0 DN 10 95
29 94 41.7 55.4 66.3 82.8 94.3 106.8 114.8 10.57 3.0 DN 10 95
32 77 42.9 57.0 68.1 85.2 96.9 109.9 118.1 12.87 3.0 DN 10 95
38 55 69.1 91.9 109.9 137.3 156.3 177.1 190.4 18.15 3.0 DN 10 95
44 41 95.6 127.0 151.9 189.9 216.1 244.9 263.2 24.33 3.0 DN 16 95
47 36 110.0 146.2 174.8 218.5 248.7 281.8 302.9 27.76 3.0 DN 16 95
50 32 125.4 166.6 199.3 249.1 283.5 321.3 345.3 31.42 3.0 DN 16 95
54 27 148.0 196.7 235.2 294.0 334.5 379.1 407.5 36.64 3.0 DN 16 95
58 24 172.4 229.0 273.9 342.4 389.6 441.6 474.6 42.27 3.0 DN 16 95
60 22 185.7 246.7 295.0 368.8 419.6 475.6 511.2 45.24 3.0 DN 16 95
65 19 217.7 289.3 346.0 432.5 492.1 557.8 599.5 53.09 3.0 DN 20 95
70 16 254.7 338.5 404.8 506.0 575.8 652.6 701.4 61.58 3.0 DN 20 95
76 14 303.2 402.9 481.8 602.2 685.3 776.7 834.8 72.58 3.0 DN 20 95
78 13 320.4 425.8 509.2 636.4 724.2 820.8 882.2 76.45 3.0 DN 20 95
80 12 338.2 449.3 537.4 671.7 764.4 866.3 931.1 80.42 3.0 DN 20 95

Valve type: Double ball valve up to DN 10, plate valve as of DN 16

Version PVC, PVDF max. 16 bar (slight deviation in pump capacity possible)

Technical data for Evolution EF2a single-head pump 60 Hz

Plunger Ø Max. pressure Max. pump capacity in l/h at strokes/min Theor. stroke volume Suction lift Connection on suction/discharge side Shipping weight
88 117 140 175 199
mm bar l/h l/h l/h l/h l/h ml/stroke m WC G-DN kg
11 400 4.7 6.3 7.5 9.4 10.7 1.52 3.0 DN 6 95
12 400 6.6 8.8 10.5 13.1 14.9 1.81 3.0 DN 6 95
13 400 8.8 11.8 14.1 17.6 20.0 2.12 3.0 DN 6 95
14 400 4.6 6.1 7.4 9.2 10.5 2.46 3.0 DN 6 95
15 351 6.5 8.6 10.3 12.9 14.6 2.83 3.0 DN 6 95
16 309 8.8 11.7 14.0 17.4 19.8 3.22 3.0 DN 6 95
17 274 11.4 15.3 18.3 22.9 26.0 3.63 3.0 DN 6 95
18 244 14.6 19.5 23.4 29.2 33.2 4.07 3.0 DN 6 95
19 219 18.2 24.4 29.2 36.5 41.5 4.54 3.0 DN 6 95
20 198 19.3 25.8 30.8 38.5 43.8 5.03 3.0 DN 10 95
21 179 21.8 29.2 34.9 43.6 49.6 5.54 3.0 DN 10 95
22 163 24.6 32.8 39.2 49.0 55.8 6.08 3.0 DN 10 95
23 149 27.5 36.7 43.9 54.9 62.5 6.65 3.0 DN 10 95
25 127 34.1 45.5 54.4 68.0 77.3 7.85 3.0 DN 10 95
29 94 50.0 66.8 80.0 100.0 113.7 10.57 3.0 DN 10 95
32 77 51.5 68.7 82.2 102.8 116.9 12.87 3.0 DN 10 95
38 55 82.9 110.8 132.6 165.7 188.5 18.15 3.0 DN 10 95
44 41 114.7 153.2 183.3 229.2 260.6 24.33 3.0 DN 16 95
47 36 132.0 176.3 211.0 263.7 299.9 27.76 3.0 DN 16 95
50 32 150.5 201.0 240.5 300.6 341.9 31.42 3.0 DN 16 95
54 27 177.6 237.2 251.1 413.8 403.5 36.64 3.0 DN 16 95
58 24 206.9 276.3 330.6 413.2 469.9 42.27 3.0 DN 16 95
60 22 222.8 297.6 356.1 445.1 506.1 45.24 3.0 DN 16 95
65 19 261.2 349.0 417.6 522.0 593.6 53.09 3.0 DN 20 95
70 16 305.6 408.3 488.6 610.7 694.4 61.58 3.0 DN 20 95
76 14 363.8 485.9 581.5 726.8 826.5 72.58 3.0 DN 20 95
78 13 384.5 513.5 614.5 768.1 873.5 76.45 3.0 DN 20 95
80 12 405.8 542.0 648.5 810.7 921.9 80.42 3.0 DN 20 95

Valve type: Double ball valve up to DN 10, plate valve as of DN 16

Version PVC, PVDF max. 16 bar (slight deviation in pump capacity possible)

Important note:

Abridged presentation of our complete product range. Other types on request

Wetted materials for Evolution EF2a

Identity code of material Dosing head Diaphragm/diaphragm mounting screw Connection on suction/discharge side Seals Valve seats Valve balls up to DN 10 Valve plates/valve springs as of DN 16
S2 Stainless steel 1.4404 PTFE / stainless steel 1.4462 Stainless steel 1.4404 stainless steel 1.4404 Stainless steel 1.4404 Al2O3 ceramic Stainless steel 1.4462
P1 PVDF PTFE / Hastelloy C PVDF PTFE PTFE Glass Ceramic / E-CTFE
V1 PVC PTFE / Hastelloy C PVDF PTFE PTFE Glass Ceramic / E-CTFE

Motor data for EVOLUTION EF2a single-head pump

Identity code specification Power supply Remarks
S 3-phase, IP 55 230 V/400 V 50 Hz 1.1 kW With PTC, speed control range 1:5
T 3-phase, IP 55 230 V/400 V
265 V/460 V
50 Hz
60 Hz
1.1 kW
L 3-phase, IP 55, II 2G Ex de IIC T4 Gb 230 V/400 V 50 Hz 1.1 kW With PTC, speed control range 1:5
Q 3-phase, IP 55, II 2G Ex de IIC T4 265 V/460 V 60 Hz 1.1 kW With PTC, speed control range 1:5
V 3-phase, IP 55 230 V 50 Hz 1.5 kW Variable speed stroke control motor with integrated frequency converter

ORLITA Evolution EF3a

Technical data for Evolution EF3a single head pump 50 Hz SST

Plunger Ø Theor. stroke volume Theoretical pump capacity in l/h at strokes/min Max. pressure Efficiency Nominal diameter
73 [2] 97 [3] 116 [4] 145 [5] 165 [6] 181 [7] 201 [8]
mm ml/stroke l/h l/h l/h l/h l/h l/h l/h bar At 100 % pressure At 50 % pressure  
17 5.67 24 33 39 49 56 61 68 397 0.72 0.80 DN 6
22 9.50 41 55 66 82 94 103 114 237 0.87 0.93 DN 6
25 12.27 53 71 85 106 121 133 148 183 0.83 0.85 DN 10
30 17.67 77 102 123 153 174 191 213 127 0.92 0.95 DN 10
34 22.70 99 132 158 197 224 246 273 99 0.90 0.94 DN 16
38 28.35 124 165 197 246 280 307 341 79 0.93 0.95 DN 16
44 38.01 166 221 264 330 376 412 458 59 0.95 0.97 DN 20
50 49.09 215 285 341 427 486 533 592 46 0.97 0.98 DN 20
58 66.05 289 384 459 574 653 717 796 34 0.98 0.99 DN 20
63 77.93 341 453 542 678 771 846 939 29 0.97 0.98 DN 25
70 96.21 421 559 669 837 952 1,044 1,160 23 0.97 0.98 DN 25
75 110.45 483 642 768 960 1,093 1,199 1,332 20 0.98 0.98 DN 25
100 196.35 860 1,142 1,366 1,708 1,943 2,132 2,368 11 0.99 0.98 DN 40

Version PVC, PVDF max. 16 bar

Technical data for Evolution EF3a single head pump 60 Hz SST

Plunger Ø Theor. stroke volume Theoretical pump capacity in l/h at strokes/min Max. pressure Efficiency Nominal diameter
88 [2] 117 [3] 140 [4] 175 [5] 199 [6]
mm ml/stroke l/h l/h l/h l/h l/h bar At 100 % pressure At 50 % pressure  
17 5.67 30 39 47 59 67 397 0.72 0.77 DN 6
22 9.50 50 66 79 99 113 237 0.83 0.85 DN 6
25 12.27 64 86 103 128 146 183 0.83 0.85 DN 10
30 17.67 93 124 148 185 211 127 0.87 0.89 DN 10
34 22.70 119 159 190 238 271 99 0.88 0.89 DN 16
38 28.35 149 199 238 297 338 79 0.89 0.90 DN 16
44 38.01 200 266 319 399 453 59 9.00 0.91 DN 20
50 49.09 259 344 412 515 586 46 0.91 0.91 DN 20
58 66.05 348 463 554 693 788 34 0.92 0.92 DN 20
63 77.93 411 547 654 818 930 29 0.92 0.93 DN 25
70 96.21 508 675 808 1,010 1,148 23 0.93 0.94 DN 25
75 110.45 583 775 927 1,159 1,318 20 0.94 0.95 DN 25
100 196.35 1,036 1,378 1,649 2,061 2,344 11 0.96 0.96 DN 40

Note:

Abridged presentation of our complete product range. Additional plunger diameters (14-100 mm) on request.

Wetted materials for Evolution EF3a

Dosing head assembly

Dosing head Diaphragm retaining screw Diaphragm
Stainless steel 1.4404 Stainless steel 1.4462 PTFE multi-layer diaphragm

Ball valve DN 6 – DN 10

Nominal diameter Connection on suction/discharge side Valve/head seal Valve balls Valve seats Valve housing Clamp ring
DN 6 Stainless steel 1.4404 Stainless steel 1.4404 SiN ceramic Stainless steel 1.4404 Stainless steel 1.4404 Hastelloy C
DN 10 Stainless steel 1.4404 Stainless steel 1.4404 Al2O3 ceramic Stainless steel 1.4404 Stainless steel 1.4404 Hastelloy C

Plate valve DN 16 – DN 40

Nominal diameter Connection on suction/discharge side Valve/head seal Valve plate Valve seats Valve housing Clamp ring
DN 16 Stainless steel 1.4404 Stainless steel 1.4404 Stainless steel 1.4462 Stainless steel 1.4404 Stainless steel 1.4404 Hastelloy C
DN 20 Stainless steel 1.4404 Stainless steel 1.4404 Stainless steel 1.4462 Stainless steel 1.4404 Stainless steel 1.4404 Hastelloy C
DN 25 Stainless steel 1.4404 Stainless steel 1.4404 Stainless steel 1.4462 Stainless steel 1.4404 Stainless steel 1.4404 Hastelloy C

Further material versions and details available on request.

ORLITA Evolution EF4a

Technical data for Evolution EF4a single head pump 50 Hz SST

Plunger Ø Theor. stroke volume Theoretical pump capacity in l/h at strokes/min Max. pressure Efficiency Nominal diameter
73 [2] 97 [3] 116 [4] 145 [5] 165 [6] 181 [7] 201 [8]
mm ml/stroke l/h l/h l/h l/h l/h l/h l/h bar At 100 % pressure At 50 % pressure  
22 15.21 66 88 105 132 150 165 183 400 0.64 0.67 DN 16
25 19.63 86 114 136 170 194 213 236 368 0.67 0.74 DN 16
30 28.27 123 164 196 246 279 307 341 255 0.70 0.76 DN 16
34 36.32 159 211 252 316 359 394 438 199 0.81 0.84 DN 16
38 45.36 198 264 315 394 449 492 547 159 0.82 0.84 DN 20
44 60.82 266 354 423 529 602 660 733 119 0.87 0.88 DN 20
50 78.54 344 457 546 683 777 852 947 92 0.90 0.92 DN 25
60 113.10 495 658 787 983 1,119 1,228 1,364 64 0.91 0.93 DN 32
70 153.94 674 895 1,071 1,339 1,524 1,671 1,856 47 0.91 0.93 DN 40
75 176.71 774 1,028 1,229 1,537 1,749 1,919 2,131 41 0.91 0.93 DN 40
86 232.35 1,017 1,352 1,617 2,021 2,300 2,523 2,802 31 0.93 0.94 DN 50
90 254.47 1,114 1,481 1,771 2,213 2,519 2,763 3,068 28 0.93 0.94 DN 50
100 314.16 1,376 1,828 2,186 2,733 3,110 3,411 3,788 23 0.94 0.94 DN 50
110 380.13 1,665 2,212 2,645 3,307 3,763 4,128 4,584 19 0.95 0.95 DN 50
115 415.48 1,819 2,418 2,891 3,614 4,113 4,512 5,010 17 0.93 0.95 DN 65
130 530.93 2,325 3,090 3,695 4,619 5,256 5,765 6,403 14 0.94 0.95 DN 65
140 615.75 2,697 3,583 4,285 5,357 6,095 6,687 7,426 12 0.95 0.96 DN 65

Version PVC, PVDF max. 16 bar

Technical data for Evolution EF4a single head pump 60 Hz SST

Plunger Ø Theor. stroke volume Theoretical pump capacity in l/h at strokes/min Max. pressure Efficiency Nominal diameter
88 [2] 117 [3] 140 [4] 175 [5] 199 [6]
mm ml/stroke l/h l/h l/h l/h l/h bar At 100 % pressure At 50 % pressure  
22 15.21 80 106 127 159 181 400 0.67 0.81 DN 16
25 19.63 103 137 164 206 234 368 0.74 0.85 DN 16
30 28.27 149 198 237 269 337 255 0.76 0.85 DN 16
34 36.32 191 254 305 381 433 199 0.84 0.87 DN 16
38 45.36 239 318 381 476 541 159 0.84 0.90 DN 20
44 60.82 321 427 510 638 726 119 0.88 0.87 DN 20
50 78.54 414 551 659 824 937 92 0.92 0.90 DN 25
60 113.10 597 793 950 1,187 1,350 64 0.93 0.91 DN 32
70 153.94 812 1,080 1,293 1,616 1,838 47 0.93 0.91 DN 40
75 176.71 933 1,240 1,484 1,855 2,110 41 0.93 0.91 DN 40
86 232.35 1,226 1,631 1,951 2,439 2,774 31 0.94 0.93 DN 50
90 254.47 1,343 1,786 2,137 2,671 3,038 28 0.94 0.93 DN 50
100 314.16 1,658 2,205 2,638 3,298 3,751 23 0.94 0.94 DN 50
110 380.13 2,007 2,668 3,193 3,991 4,538 19 0.95 0.95 DN 50
115 415.48 2,193 2,916 3,490 4,362 4,960 17 0.95 0.93 DN 65
130 530.93 2,803 3,727 4,459 5,574 6,339 14 0.95 0.94 DN 65
140 615.75 3,251 4,322 5,172 6,465 7,352 12 0.96 0.96 DN 65

Wetted materials for Evolution EF4a

Dosing head assembly

Dosing head Diaphragm retaining screw Diaphragm
Stainless steel 1.4404 Stainless steel 1.4462 PTFE multi-layer diaphragm

Plate valve

Nominal diameter Connection on suction/discharge side Valve/head seal Valve plate Valve seats Valve housing
DN 16 Stainless steel 1.4404 Stainless steel 1.4571 Stainless steel 1.4462 Stainless steel 1.4404 Stainless steel 1.4404
DN 20 Stainless steel 1.4404 Stainless steel 1.4571 Stainless steel 1.4462 Stainless steel 1.4404 Stainless steel 1.4404
DN 25 Stainless steel 1.4404 Stainless steel 1.4571 Stainless steel 1.4462 Stainless steel 1.4404 Stainless steel 1.4404
DN 32 Stainless steel 1.4404 Stainless steel 1.4571 Stainless steel 1.4462 Stainless steel 1.4404 Stainless steel 1.4404
DN 40 Stainless steel 1.4404 Stainless steel 1.4571 Stainless steel 1.4462 Stainless steel 1.4404 Stainless steel 1.4404
DN 50 Stainless steel 1.4404 Stainless steel 1.4571 Stainless steel 1.4462 Stainless steel 1.4404 Stainless steel 1.4404
DN 65 Stainless steel 1.4404 Stainless steel 1.4571 Stainless steel 1.4462 Stainless steel 1.4404 Stainless steel 1.4404

Note:

Abridged presentation of our complete product range. Other piston diameters (22–140 mm) on request.