Simple and flexible.
The Orlita® Evolution plunger metering pumps EP1a and EP2a form an integrated product range with stroke lengths of 15 mm. This covers a capacity range from 5 to 511 l/h at 293 – 8 bar. A wide range of drive versions is available, including some for use in Zone 1 or Zone 2 areas at risk from explosion with ATEX certification. The Orlita® Evolution product range is designed to comply with API 675.
Your benefits
Flexible adaptation to the process:
- Precise capacity even at maximum pressure
- Metering reproducibility is better than ± 0.5 % within the 10 - 100 % stroke length range under defined conditions and with correct installation.
- Excellent hydraulic efficiency
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
- 7 gear ratios are available
- Power end configuration ideal for installation in any position (vertical or horizontal)
Technical Details
- Stroke length: 0-16 mm, Rod force: 2,600 N (EP1a), 6,200 N (EP2a)
- Stroke length adjustment: 0 – 100 %
- Stroke length adjustment range: 0 – 100% in operation and idle
- The plunger packing can be tightened by the tensioning screw on the front even during operation
- Metering reproducibility is better than ± 0.5 % within the 10 – 100 % stroke length range under defined conditions and with correct installation
- Wetted materials: Stainless steel, special designs are available on request
- A wide range of power end versions is available: 3-phase AC motors, motors for use in areas at risk from explosion and different flange designs for use in customer-specific motors
- Degree of protection: IP 55
- Temperature range - 40 °C to + 200 °C
- Design in compliance with API 675 among others
Technical data for EP1a single pump 50 Hz SST
Plunger Ø | Theor. stroke volume | Theoretical pump capacity in l/h at strokes/min | Max. pressure | Efficiency at 100 % pressure | Efficiency at 50 % pressure | Standard type of valve |
|---|
| | 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 |
|
|
|
|---|
10 | 1.26 | 5.5 | 7.3 | 8.7 | 10.9 | 12.4 | 13.6 | 15.2 | 331 | 0.85 | 0.95 | DN 6 |
19 | 4.54 | 19.9 | 26.4 | 31.6 | 39.5 | 44.9 | 49.3 | 54.7 | 92 | 0.89 | 0.95 | DN 10 |
26 | 8.49 | 37.2 | 49.4 | 59.1 | 73.9 | 84.1 | 92.3 | 102.4 | 49 | 0.92 | 0.95 | DN 10 |
35 | 15.39 | 67.4 | 89.6 | 107.1 | 133.9 | 152.4 | 167.2 | 185.6 | 27 | 0.94 | 0.96 | DN 16 |
Technical data for EP1a single pump 60 Hz SST
Plunger Ø | Theor. stroke volume | Theoretical pump capacity in l/h at strokes/min | Max. pressure | Efficiency at 100 % pressure | Efficiency at 50 % pressure | Standard type of valve |
|---|
| | 88 [2] | 117 [3] | 140 [4] | 175 [5] | 199 [6] | | | | |
|---|
mm | ml/stroke | l/h | l/h | l/h | l/h | l/h | bar |
|
|
|
|---|
10 | 1.26 | 6.6 | 8.8 | 10.6 | 13.2 | 15.0 | 331 | 0.85 | 0.95 | DN 6 |
19 | 4.54 | 24.0 | 31.8 | 38.1 | 47.6 | 54.2 | 92 | 0.89 | 0.95 | DN 10 |
26 | 8.49 | 44.9 | 59.6 | 71.4 | 59.2 | 101.4 | 49 | 0.92 | 0.95 | DN 10 |
35 | 15.39 | 81.3 | 108.1 | 129.3 | 161.6 | 183.8 | 27 | 0.94 | 0.96 | DN 16 |
Materials in Contact With the Medium
Ball valve DN 6 - DN 10
Identity code of material | Suction/discharge connection | Valve/head seal | Valve balls | Valve seats | Valve housing | Clamp ring |
|---|
DN 6 (double ball) | Stainless steel 1.4404 | Stainless steel 1.4404 | SiN ceramic | Stainless steel 1.4404 | Stainless steel 1.4404 | Hastelloy C-4 |
DN 10 (single ball) | Stainless steel 1.4404 | Stainless steel 1.4404 | Al2O3 ceramic | Stainless steel 1.4404 | Stainless steel 1.4404 | Hastelloy C-4 |
Note:
Abridged presentation of our complete product range. Other piston diameters (8–60 mm) on request.
Plate valve DN 16 - DN 20
Standard type of valve | Suction/discharge connection | 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 |
Further material versions and details available on request.
Technical data for EP2a single pump 50 Hz SST
Plunger Ø | Theor. stroke volume | Theoretical pump capacity in l/h at strokes/min | Max. pressure | Efficiency at 100 % pressure | Efficiency at 50 % pressure | Standard type of valve |
|---|
| | 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 |
|
|
|
|---|
10 | 1.26 | 5.5 | 7.3 | 8.7 | 10.9 | 12.4 | 13.6 | 15.2 | 520 | 0.82 | 0.95 | DN 6 |
19 | 4.54 | 19.9 | 26.4 | 31.6 | 39.5 | 44.9 | 49.3 | 54.7 | 219 | 0.86 | 0.95 | DN 10 |
26 | 8.49 | 37.2 | 49.4 | 59.1 | 73.9 | 84.1 | 92.3 | 102.4 | 117 | 0.90 | 0.96 | DN 10 |
35 | 15.39 | 67.4 | 89.6 | 107.1 | 133.9 | 152.4 | 167.2 | 185.6 | 65 | 0.92 | 0.96 | DN 16 |
Technical data for EP2a single pump 60 Hz SST
Plunger Ø | Theor. stroke volume | Theoretical pump capacity in l/h at strokes/min | Max. pressure | Efficiency at 100 % pressure | Efficiency at 50 % pressure | Standard type of valve |
|---|
| | 88 [2] | 117 [3] | 140 [4] | 175 [5] | 199 [6] | | | | |
|---|
mm | ml/stroke | l/h | l/h | l/h | l/h | l/h | bar |
|
|
|
|---|
10 | 1.26 | 6.6 | 8.8 | 10.6 | 13.2 | 15.0 | 520 | 0.82 | 0.95 | DN 6 |
19 | 4.54 | 24.0 | 31.8 | 38.1 | 47.6 | 54.2 | 219 | 0.86 | 0.95 | DN 10 |
26 | 8.49 | 44.9 | 59.6 | 71.4 | 89.2 | 101.4 | 117 | 0.90 | 0.95 | DN 10 |
35 | 15.39 | 81.3 | 108.1 | 129.3 | 161.6 | 183.8 | 65 | 0.92 | 0.96 | DN 16 |
Note:
Abridged presentation of our complete product range. Other types on request. Piston diameter 11 - 80 mm.
Identity code of material | Suction/discharge connection | Valve/head seal | Valve balls | Valve seats | Valve housing | Clamp ring |
|---|
DN 6 (double ball) | Stainless steel 1.4404 | Stainless steel 1.4404 | SiN ceramic | Stainless steel 1.4404 | Stainless steel 1.4404 | Hastelloy C-4 |
DN 10 (single ball) | Stainless steel 1.4404 | Stainless steel 1.4404 | Al2O3 ceramic | Stainless steel 1.4404 | Stainless steel 1.4404 | Hastelloy C-4 |
Plate valve DN 16
Standard type of valve | Suction/discharge connection | 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 |
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