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Hydraulic Diaphragm Metering Pump Orlita® Evolution

Capacity range of single head pump: 3 – 7,400 l/h, 400 – 8 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.

Product description

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 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)
  • Metering reproducibility is better than ± 1% within the 10-100% stroke length adjustment range under certain defined conditions and with proper 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

Field of application

  • Oil and gas industry
  • Metering of reactants and catalysts in the chemical industry
  • Volume-proportional metering of chemicals/additives in the treatment of boiler feed water
  • Level-dependent metering of auxiliary agents in industrial production engineering, for instance hot wax metering in the production of adhesive strips
    1 2 3 4

    Technical Details

    • Stroke length: 0 - 15 mm (Evo 1, Evo 2), 0 - 25 mm (Evo 3), 0 - 40 mm (Evo 4)
      Rod force: 2,300 N (Evo 1), 5,400 N (Evo 2), 8,000 N (Evo 3), 15,700 N (Evo 4)
    • Stroke length adjustment range: 0 – 100%
    • Stroke length adjustment: manually by means of a manual adjustment wheel and scaled display (optionally with electric actuator or control drive)
    • Metering reproducibility 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 system via a contact
    • Integrated hydraulic relief and bleed 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 versions is available: Three-phase 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 among others

    Technical data for EF1a single head pump 50 Hz SST

    Plunger ØStroke volumeTheoretical pump capacity in l/h at strokes/min (50 Hz)Max. pressureEfficiency atEfficiency atStandard 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 bar100% pressure50% pressure
    80.753.34.45.26.67.58.29.14000.430.69DN 3
    101.185.26.98.210.211.712.814.22930.610.79DN 3
    121.707.49.911.814.816.818.420.52030.770.86DN 6
    142.3110.113.416.120.122.925.127.81490.620.80DN 6
    173.4014.919.823.729.633.736.941.01010.770.88DN 6
    215.2022.830.336.245.251.556.562.7660.850.89DN 10
    257.3632.242.851.264.072.979.988.8470.900.93DN 10
    299.9143.457.769.083.298.1107.6119.5350.950.96DN 10
    3212.0652.870.283.9104.9119.4131.0145.4290.890.93DN 10
    3817.0174.599.0118.4148.0168.4184.7205.1200.930.95DN 10
    4422.8199.9132.8158.8198.4225.8247.7275.1150.940.96DN 16
    5029.45129.0171.4205.0256.2291.6319.9355.2120.950.96DN 16
    5839.63173.6230.6275.8344.8392.3430.4477.990.950.97DN 16

    Technical data for EF1a single head pump 60 Hz SST

    Plunger ØStroke volumeTheoretical pump capacity in l/h at strokes/min (60 Hz)Max. pressureEfficiency atEfficiency atStandard 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 bar100% pressure50% pressure
    80.754.05.36.37.99.04000.430.69DN 3
    101.186.28.39.912.414.12930.610.79DN 3
    121.709.011.914.317.820.32030.770.86DN 6
    142.3112.216.219.424.327.61490.620.80DN 6
    173.4018.023.928.635.740.61010.770.88DN 6
    215.2027.536.543.754.662.1660.850.89DN 10
    257.3638.951.761.877.387.9470.900.93DN 10
    299.9152.369.683.2104.1118.3350.950.96DN 10
    3212.0663.784.7101.3126.6144.0290.890.93DN 10
    3817.0189.8119.4142.9178.6203.1200.930.95DN 10
    4422.81120.4160.1191.6239.5272.4150.940.96DN 16
    5029.45155.5206.7247.4309.2351.6120.950.96DN 16
    5839.63209.2278.2332.9416.1473.290.950.97DN 16

    Note:

    Abridged presentation of our complete product range. Other piston diameters (8–60 mm) on request

    Materials in Contact With the Medium

    Dosing head complete

    Dosing headDiaphragm retaining screwDiaphragm
    Stainless steelStainless steel 1.4462PTFE multi-layer diaphragm

    Ball valve DN 3 – DN 10

     Suction/pressure connectorValve/head sealValve ballValve seatValve housingClamp ring
    DN 3 (double ball)Stainless steel 1.4404Stainless steel 1.4404Al2O3 ceramicStainless steel 1.4404Stainless steel 1.4404Hastelloy C4
    DN 6 (double ball)Stainless steel 1.4404Stainless steel 1.4404SiN ceramicStainless steel 1.4404Stainless steel 1.4404Hastelloy C4
    DN 10 (single ball)Stainless steel 1.4404Stainless steel 1.4404Al2O3 ceramicStainless steel 1.4404Stainless steel 1.4404Hastelloy C4

    Plate valve DN 16

     Suction/pressure connectorValve/head sealValve plateValve seatValve housing
    DN 16Stainless steel 1.4404Stainless steel 1.4571Stainless steel 1.4462Stainless steel 1.4404Stainless steel 1.4404

    Further material versions and details available on request.

    Technical data for EF2a single head pump 50 Hz SST

    Plunger ØStroke volumeTheoretical pump capacity in l/h at strokes/min (50 Hz)Max. pressureEfficiency atEfficiency atStandard 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 bar100% pressure50% pressure
    121.7071012151718214000.690.82DN 6
    142.31101316202225283510.350.67DN 6
    173.40152024303437412380.600.79DN 6
    215.20233036455156531560.750.85DN 10
    257.36324351647380891100.830.89DN 10
    299.914358698698108120820.900.93DN 10
    3212.06537084105119131145670.760.87DN 10
    3817.017599118148168185205480.870.92DN 10
    4422.81100133159198226248275360.900.94DN 16
    5029.45129171205256292320355280.910.95DN 16
    5839.63174231276345392430478200.930.96DN 16
    7057.73253336402502572627696140.940.96DN 20

    Technical data for EF2a single head pump 60 Hz SST

    Plunger ØStroke volumeTheoretical pump capacity in l/h at strokes/min (60 Hz)Max. pressureEfficiency atEfficiency atStandard 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 bar100% pressure50% pressure
    121.709121418204000.690.82DN 6
    142.3112161924283510.350.67DN 6
    173.4018242936412380.600.79DN 6
    215.2027374455621560.750.85DN 10
    257.3639526277881100.830.89DN 10
    299.91527083104118820.900.93DN 10
    3212.066485101127144670.760.87DN 10
    3817.0190119143179203480.870.92DN 10
    4422.81120160192240272360.900.94DN 16
    5029.45155207247309352280.910.95DN 16
    5839.63209278333416473200.930.96DN 16
    7057.73305405485606689140.940.96DN 20

    Note:

    Abridged presentation of our complete product range. Other piston diameters (11 – 80 mm) on request.

    Materials in Contact With the Medium

    Dosing head complete

    Dosing headDiaphragm retaining screwDiaphragm
    Stainless steel 1.4404Stainless steel 1.4462PTFE multi-layer diaphragm

    Ball valve DN 3 – DN 10

     Suction/pressure connectorValve/head sealValve ballValve seatValve housingClamp ring
    DN 3 (double ball)Stainless steel 1.4404Stainless steel 1.4404Al2O3 ceramicStainless steel 1.4404Stainless steel 1.4404Hastelloy C4
    DN 6 (double ball)Stainless steel 1.4404Stainless steel 1.4404SiN ceramicStainless steel 1.4404Stainless steel 1.4404Hastelloy C4
    DN 10 (double ball)Stainless steel 1.4404Stainless steel 1.4404Al2O3 ceramicStainless steel 1.4404Stainless steel 1.4404Hastelloy C4

    Plate valve DN 16 – DN 20

     Suction/pressure connectorValve/head sealValve plateValve seatValve housing
    DN 16/DN 20Stainless steel 1.4404Stainless steel 1.4571Stainless steel 1.4462Stainless steel 1.4404Stainless steel 1.4404

    Further material versions and details available on request.

    Technical data for EF3a single head pump 50 Hz SST

    Plunger ØStroke volumeTheoretical pump capacity in l/h at strokes/min (50 Hz)Max. pressureEfficiency atEfficiency atStandard 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 bar100% pressure50% pressure
    175.67243239495661683520.680.83DN 6
    229.5041556682931031142100.870.93DN 6
    2512.275371851061211331481630.860.92DN 10
    3017.67771021231741921922131130.920.95DN 10
    3422.7099132158197225247274880.900.94DN 16
    3828.35123164197247280308343710.930.95DN 16
    4438.01165220265331376413459530.950.97DN 20
    5049.09214285342427485534593410.970.98DN 20
    5866.05287383460575653718798300.980.99DN 20
    6377.93341454542678772846940260.970.98DN 25
    7096.214195586708379511,0461,163210.980.98DN 25
    75110.454806407689601,0911,2011,334180.980.98DN 25

    Technical data for EF3a single head pump 60 Hz SST

    Plunger ØStroke volumeTheoretical pump capacity in l/h at strokes/min (60 Hz)Max. pressureEfficiency atEfficiency atStandard 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 bar100% pressure50% pressure
    175.6729394759673520.680.83DN 6
    229.505067801001132100.870.93DN 6
    2512.2764861031291461630.860.92DN 10
    3017.67931241481862111130.920.95DN 10
    3422.70120159191238271880.900.94DN 16
    3828.35149198238298338710.930.95DN 16
    4438.01200266319399454530.950.97DN 20
    5049.09258344412515585410.970.98DN 20
    5866.05347462555694788300.980.99DN 20
    6377.93411547655818930260.970.98DN 25
    7096.215056738081,0101,148210.980.98DN 25
    75110.455807739271,1591,317180.980.98DN 25

    Note:

    Abridged presentation of our complete product range. Other piston diameters (14 – 75 mm) on request.

    Materials in Contact With the Medium

    Dosing head complete

    Dosing headDiaphragm retaining screwDiaphragm
    Stainless steel 1.4404Stainless steel 1.4462PTFE multi-layer diaphragm

    Ball valve DN 6 – DN 10

     Suction/pressure connectorValve/head sealValve ballValve seatValve housingClamp ring
    DN 6 (double ball)Stainless steel 1.4404Stainless steel 1.4404SIN ceramicStainless steel 1.4404Stainless steel 1.4404Hastelloy C4
    DN 10 (single ball)Stainless steel 1.4404Stainless steel 1.4404Al2O3 ceramicStainless steel 1.4404Stainless steel 1.4404Hastelloy C4

    Plate valve DN 16 – DN 25

     Suction/pressure connectorValve/head sealValve plateValve seatValve housing
    DN 16/DN 25Stainless steel 1.4404Stainless steel 1.4571Stainless steel 1.4462Stainless steel 1.4404Stainless steel 1.4404

    Further material versions and details available on request.

    Technical data for EF4a single head pump 50 Hz SST

    Plunger ØStroke volumeTheoretical pump capacity in l/h at strokes/min (50 Hz)Max. pressureEfficiency atEfficiency atStandard 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 bar100% pressure50% pressure
    2215.2167891061321511651834000.670.73DN 16
    2519.63861141371711942132373200.740.78DN 16
    3028.271241651972462803073412220.750.84DN 16
    3436.321592112533163603944381720.850.90DN 16
    3845.361992643163954494935471380.860.92DN 20
    4460.822663544235296026617331030.890.95DN 20
    5078.54344457547683778853947800.940.97DN 25
    60113.104956587879841,1201,2281,364550.950.97DN 32
    70153.946748961,0711,3391,5241,6721,857400.950.98DN 40
    75176.717741,0281,2301,5371,7491,9192,131350.950.98DN 40
    86232.351,0181,3521,6172,0212,3002,5232,802270.960.96DN 50
    90254.471,1151,4811,7712,2142,5192,7643,069240.960.96DN 50
    100314.161,3761,8282,1872,7333,1103,4123,789200.960.96DN 50
    110380.131,6652,2122,6463,3073,7634,1284,584160.970.97DN 50
    115415.481,8202,4182,8923,6154,1134,5125,011150.960.98DN 65
    130530.932,3253,0903,6954,6195,2565,7666,403120.970.99DN 65
    140615.752,6973,5844,2865,3576,0966,6877,426100.980.99DN 65

    Technical data for EF4a single head pump 60 Hz SST

    Plunger ØStroke volumeTheoretical pump capacity in l/h at strokes/min (60 Hz)Max. pressureEfficiency atEfficiency atStandard 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 bar100% pressure50% pressure
    2215.21801071281601824000.670.73DN 16
    2519.631041381652062343200.740.78DN 16
    3028.271491982372973372220.750.84DN 16
    3436.321922553053814341720.850.90DN 16
    3845.362403183814765421380.860.92DN 20
    4460.823214275116397261030.890.95DN 20
    5078.54415551660825938800.940.97DN 25
    60113.105977949501,1881,350550.950.97DN 32
    70153.948131,0811,2931,6161,838400.950.98DN 40
    75176.719331,2411,4841,8552,110350.950.98DN 40
    86232.351,2271,6311,9522,4402,774270.960.96DN 50
    90254.471,3441,7862,1382,6713,038240.960.96DN 50
    100314.161,6592,2052,6393,2993,751200.960.96DN 50
    110380.132,0072,6693,1933,9914,539160.970.97DN 50
    115415.482,1942,9173,4904,3634,961150.960.98DN 65
    130530.932,8033,7274,4605,5756,339120.970.99DN 65
    140615.753,2514,3235,1726,4657,352100.980.99DN 65

    Note:

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

    Materials in Contact With the Medium

    Dosing head complete

    Dosing headDiaphragm retaining screwDiaphragm
    Stainless steel 1.4404Stainless steel 1.4462PTFE multi-layer diaphragm

    Plate valve

     Suction/ pressure connectorValve/ head sealValve plateValve seatValve housing
    DN 16 – DN 65Stainless steel 1.4404Stainless steel 1.4571Stainless steel 1.4462Stainless steel 1.4404Stainless steel 1.4404

    Further material versions and details available on request.

    Technical data for EF1a single head pump 50 Hz PVC/PVDF

    Plunger ØStroke volumeTheoretical pump capacity in l/h at strokes/min (50 Hz)Max. pressureEfficiency atEfficiency atStandard 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 bar100% pressure50% pressure
    80.753.34.45.26.67.58.29.1160.650.70DN 3
    101.185.26.98.210.211.712.814.2160.810.88DN 3
    121.707.49.911.814.816.818.520.5160.790.82DN 6
    215.2022.830.236.245.251.456.462.7160.810.84DN 10
    257.3632.342.951.264.172.980.088.8160.840.87DN 10
    299.9143.457.769.086.298.1107.6119.5160.860.89DN 10
    4422.8199.9132.8158.8198.4225.8247.7275.1100.940.96DN 16
    5029.45129.0171.4205.0256.2291.6319.9355.2100.950.96DN 16
    6042.41185.8246.8295.2369.0419.9460.6511.580.960.97DN 16

    Technical data for EF1a single head pump 60 Hz PVC/PVDF

    Plunger ØStroke volumeTheoretical pump capacity in l/h at strokes/min (60 Hz)Max. pressureEfficiency atEfficiency atStandard 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 bar100% pressure50% pressure
    80.754.05.36.37.99.0160.650.70DN 3
    101.186.28.39.912.414.1160.810.88DN 3
    121.709.011.914.317.920.3160.790.82DN 6
    215.2027.536.543.754.662.1160.810.84DN 10
    257.3638.951.761.877.387.9160.840.87DN 10
    299.9152.369.683.2104.1118.3160.860.89DN 10
    4422.81120.4160.1191.6239.5272.4100.940.96DN 16
    5029.45155.5206.7247.4309.2351.6100.950.96DN 16
    6042.41223.9297.7356.2445.3506.480.960.97DN 16

    Note:

    Abridged presentation of our complete product range. Other piston diameters (8 - 60 mm) on request. Other pressures (16 and/or 21 bar) on request.

    Materials in Contact With the Medium

    Dosing head complete

    Dosing headDiaphragm retaining screwDiaphragm
    PVCHastelloy CPTFE
    PVDFHastelloy CPTFE

    Ball valve DN 6 – DN 10

     Suction/pressure connectorValve/head sealValve ballValve seatValve housingClamp ring
    DN 6 (single ball)PVDFPTFE moulded compositeAl2O3 ceramicPTFEPVDFPVDF
    DN 10 (single ball)PVDFPTFE moulded compositeAl2O3 ceramicPTFEPVDFPVDF

    Plate valve DN 16

     Suction/pressure connectorValve/head sealValve ballValve seatValve housing
    DN 16PVDFPTFEZrO2 ceramicPTFEPVDF

    Further material versions and details available on request.

    Technical data for EF2a single head pump 50 Hz PVC/PVDF

    Plunger ØStroke volumeTheoretical pump capacity in l/h at strokes/min (50 Hz)Max. pressureEfficiency atEfficiency atStandard 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 bar100% pressure50% pressure
    111.43681012141617160.660.72DN 6
    121.707101215171821160.790.82DN 6
    215.2023303645515663160.810.84DN 10
    257.3632435164738089160.840.87DN 10
    299.914358698698108120160.860.89DN 10
    4422.81100133159198226248275100.940.96DN 16
    5029.45129171205256292320355100.950.96DN 16
    6042.4118624729536942046051180.960.97DN 16

    Technical data for EF2a single head pump 60 Hz PVC/PVDF

    Plunger ØStroke volumeTheoretical pump capacity in l/h at strokes/min (60 Hz)Max. pressureEfficiency atEfficiency atStandard 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 bar100% pressure50% pressure
    111.43810121517160.660.72DN 6
    121.70912141820160.790.82DN 6
    215.202737445562160.810.84DN 10
    257.363952627788160.840.87DN 10
    299.91527083104118160.860.89DN 10
    4422.81120160192240272100.940.96DN 16
    5029.45155207247309352100.950.96DN 16
    6042.4122429835644550680.960.97DN 16

    Note:

    Abridged presentation of our complete product range. Other piston diameters on request. Other pressure stages (e.g. 21 bar) on request.

    Materials in Contact With the Medium

    Dosing head complete

    Dosing headDiaphragm retaining screwDiaphragm
    PVCHastelloy CPTFE
    PVDFHastelloy CPTFE

    Ball valve DN 6 – DN 10

     Suction/pressure connectorValve/head sealValve ballValve seatValve housingClamp ring
    DN 6 (single ball)PVDFPTFE moulded compositeAl2O3 ceramicPTFEPVDFPVDF
    DN 10 (single ball)PVDFPTFE moulded compositeAl2O3 ceramicPTFEPVDFPVDF

    Plate valve DN 16

     Suction/pressure connectorValve/head sealValve plateValve seatValve housing
    DN 16PVDFPTFEZr<subscript></subscript>O2 ceramicPTFEPVDF

    Further material versions and details available on request.

    Technical data for EF3a single head pump 50 Hz PVC/PVDF

    Plunger ØStroke volumeTheoretical pump capacity in l/h at strokes/min (50 Hz)Max. pressureEfficiency atEfficiency atStandard 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 bar100% pressure50% pressure
    6377.93339452542678770848942100.950.96DN 25
    6788.143865136137678739571,063100.950.96DN 25
    7096.214195586708379511,0461,163100.960.97DN 25
    75110.454806417699611,0921,2011,335100.970.98DN 25

    Technical data for EF3a single head pump 60 Hz PVC/PVDF

    Plunger ØStroke volumeTheoretical pump capacity in l/h at strokes/min (60 Hz)Max. pressureEfficiency atEfficiency atStandard 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 bar100% pressure50% pressure
    6377.93409546655818930100.950.96DN 25
    6788.144656197409251,052100.950.96DN 25
    7096.215056738081,0101,148100.960.97DN 25
    75110.455837759281,1601,319100.970.98DN 25

    Note:

    Abridged presentation of our complete product range. Other piston diameters on request. Other pressure stages (e.g. 16 bar) on request.

    Materials in Contact With the Medium

    Dosing head complete

    Dosing headDiaphragm retaining screwDiaphragm
    PVCHastelloy CPTFE
    PVDFHastelloy CPTFE

    Plate valve

     Suction/pressure connectorValve/head sealValve plateValve seatValve housing
    DN 25PVDFPTFEZrO2 ceramicPTFEPVDF

    Further material versions and details available on request.

    Technical data for EF4a single head pump 50 Hz PVC/PVDF

    Plunger ØStroke volumeTheoretical pump capacity in l/h at strokes/min (50 Hz)Max. pressureEfficiency atEfficiency atStandard 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 bar100% pressure50% pressure
    70153.946748961,0711,3391,5241,6721,857100.950.98DN 40
    86232.351,0181,3521,6172,0212,3002,5232,802100.960.96DN 50
    110380.131,6652,2122,6463,3073,7634,1284,584100.970.97DN 50
    140615.752,6973,5844,2865,3576,0966,6877,426100.980.99DN 65

    Technical data for EF4a single head pump 60 Hz PVC/PVDF

    Plunger ØStroke volumeTheoretical pump capacity in l/h at strokes/min (60 Hz)Max. pressureEfficiency atEfficiency atStandard 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 bar100% pressure50% pressure
    70153.948131,0811,2931,6161,838100.940.95DN 40
    110380.132,0072,6693,1933,9914,539100.980.98DN 50
    140615.753,2514,3235,1726,4657,352100.990.99DN 65
    86232.351,2271,6312,4402,5231,952100.960.97DN 50

    Note:

    Abridged presentation of our complete product range. Other piston diameters on request. Other pressure stages (16 and/or 21 bar) on request.

    Materials in Contact With the Medium

    Dosing head complete

    Dosing headDiaphragm retaining screwDiaphragm
    PVCHastelloy CPTFE
    PVDFHastelloy CPTFE

    Ball valve DN 3 – DN 10

     Suction/pressure connectorValve/head sealValve ballValve seatValve housingClamp ring
    DN 25 (single ball)PVDFPTFE moulded compositeAl2O3 ceramicPTFEPVDFPVDF

    Plate valve

     Suction/pressure connectorValve/head sealValve plateValve seatValve housing
    DN 40 – DN 65PVDFPTFEZrO2 ceramicPTFEPVDF

    Further material versions and details available on request.

    Downloads for Hydraulic Diaphragm Metering Pump Orlita® Evolution

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    Overview

    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 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)
    • Metering reproducibility is better than ± 1% within the 10-100% stroke length adjustment range under certain defined conditions and with proper 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

    Application

    Technical Data

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