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Process Hydraulic Diaphragm Metering Pump Orlita® Evolution API 674

Capacity range per pump head: 3 – 7,400 l/h, 400 – 8 bar

The hydraulic diaphragm metering pump Orlita® Evolution API 674 is characterised by a PTFE multilayer diaphragm with integral diaphragm rupture warning and by its unique diaphragm position control. For critical and heavy Industrial applications and when meeting exacting safety requirements.

Product description

Maximum process reliability in accordance with API 674.

Orlita® Evolution hydraulic diaphragm metering pumps ER1a, EF2F, EF3F and EF4F form an integrated product range with stroke lengths of 15 to 40 mm. This covers the capacity range from 3 to 7,400 l/h at 400 – 10 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 674.

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% under 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

    Technical Details

    • Stroke length: 16 mm (Evo 1, Evo 2), 25 mm (Evo 3), 40 mm (Evo 4)
      Rod force: 2,600 N (Evo 1), 6,200 N (Evo 2), 9,000 N (Evo 3), 18,000 N (Evo 4)
    • Metering reproducibility is better than ± 1% under defined conditions and with proper 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 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 674 among others

    Technical data for EF1F single head pump 50 Hz SST

    Plunger ØTheor. stroke 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
    80.803.54.75.67.08.08.79.74000.430.75DN 3
    101.265.57.38.710.912.413.615.23370.610.79DN 3
    121.817.910.512.615.717.919.721.82340.770.86DN 6
    142.4610.814.317.121.424.426.729.71720.620.80DN 6
    173.6315.921.125.331.636.039.443.81170.770.88DN 6
    215.5424.332.338.648.254.960.266.8760.850.90DN 10
    257.8534.445.754.768.377.885.394.7540.900.93DN 10
    2910.5746.361.573.691.9104.6114.8127.5400.950.96DN 10
    3212.8756.474.989.6112.0127.4139.7155.2330.890.93DN 16
    3818.1579.5105.6126.3157.9179.6197.1218.8230.930.95DN 16
    4424.33106.6141.6169.3211.7240.9264.2293.4170.940.96DN 16
    5031.42137.6182.8218.7273.3311.0341.2378.9130.950.96DN 16
    5842.27185.2246.0294.2367.8418.5459.1509.8100.950.97DN 16

    Technical data for EF1F single head pump 60 Hz SST

    Plunger ØTheor. stroke 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
    80.804.25.66.88.49.64000.430.69DN 3
    101.266.68.810.613.215.03370.610.79DN 3
    121.819.612.715.219.021.62340.770.86DN 6
    142.4613.017.320.725.929.41720.620.80DN 6
    173.6319.225.530.538.143.41170.770.88DN 6
    215.5429.338.946.658.266.2730.850.90DN 10
    257.8541.555.182.593.866.0540.900.93DN 10
    2910.5755.8126.274.288.8111.0400.950.96DN 10
    3212.8767.990.3108.1135.1153.6330.890.93DN 16
    3818.1595.8127.4152.4190.5216.7230.930.95DN 16
    4424.33128.5170.8204.4255.4290.5170.940.96DN 16
    5031.42165.9220.5263.9329.9375.1130.950.96DN 16
    5842.27223.2296.8355.1443.9504.7100.950.97DN 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 EF2F single head pump 50 Hz SST

    Plunger ØTheor. stroke 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
    121.817.910.512.615.717.920.321.84000.690.82DN 6
    142.4610.814.317.121.424.427.629.74000.350.67DN 6
    173.6315.921.125.331.636.040.743.82740.600.79DN 6
    215.5424.332.338.648.254.962.266.81790.750.85DN 10
    257.8534.445.754.768.377.888.194.71270.830.89DN 10
    2910.5746.361.573.691.9104.6118.6127.5940.900.93DN 10
    3212.8756.474.989.6112.0127.4144.4155.2770.760.87DN 16
    3818.1579.5105.6126.3157.9179.6203.6218.8550.870.92DN 16
    4424.33106.6141.6169.3211.7240.9273.0293.4410.900.94DN 16
    5031.42137.6182.8218.7273.3311.0352.5378.9320.910.95DN 16
    5842.27185.2246.0294.2367.8418.5474.3509.8240.930.96DN 16
    7061.58269.7358.4428.6535.7609.6690.9742.6160.940.96DN 20

    Technical data for EF2F single head pump 60 Hz SST

    Plunger ØTheor. stroke 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
    121.819.012.015.019.021.04000.690.82DN 6
    142.4613.017.020.025.029.04000.350.67DN 6
    173.6319.025.030.038.043.02740.600.79DN 6
    215.5429.038.046.058.066.01790.750.85DN 10
    257.8541.055.066.082.093.01270.830.89DN 10
    2910.5755.074.088.0111.0126.0940.900.93DN 10
    3212.8767.090.0108.0135.0153.0770.760.87DN 16
    3818.1595.0127.0152.0190.0216.0550.870.92DN 16
    4424.33128.0170.0204.0255.0290.0410.900.94DN 16
    5031.42165.0220.0263.0329.0375.0320.910.95DN 16
    5842.27223.0296.0355.0443.0504.0240.930.96DN 16
    7061.58325.0432.0517.0646.0735.0160.940.96DN 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 EF3F single head pump 50 Hz SST

    Plunger ØTheor. stroke 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
    175.67243339495661683970.720.77DN 6
    229.5041556682941031142370.830.85DN 6
    2512.275371851061211331481830.830.85DN 10
    3017.67771021231531741912131270.870.89DN 10
    3422.7099132158197224246273990.880.89DN 16
    3828.35124165197246280307341790.890.90DN 16
    4437.01166221264330376412458590.900.91DN 20
    5049.09215285341427416533592460.910.91DN 20
    5866.05289384459574653717796340.920.92DN 20
    6377.93341453542678771846939290.920.93DN 25
    7096.214215596698379521,0441,160230.930.94DN 25
    75100.454836427689601,0931,1991,332200.940.95DN 25
    100196.358601,1421,3661,7081,9432,1322,368110.960.96DN 40

    Technical data for EF3F single head pump 60 Hz SST

    Plunger ØTheor. stroke 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
    175.6730394759673970.720.77DN 6
    229.50506679991132370.830.85DN 6
    2512.2764861031281461830.830.85DN 10
    3017.67931241481862111270.870.89DN 10
    3422.70119159190238271990.880.89DN 16
    3828.35149199238297338790.890.90DN 16
    4438.01200266319399453590.900.91DN 20
    5049.09259344412515586460.910.91DN 20
    5866.05348463554693788340.920.92DN 20
    6377.93411547654818930290.920.93DN 25
    7096.215086758081,0101,148230.930.94DN 25
    75110.455837759271,1591,318200.940.95DN 25
    100196.351,0361,3781,6492,0612,344110.960.96DN 40

    Note:

    Abridged presentation of our complete product range. Additional plunger diameters (14-100 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 EF4F single head pump 50 Hz SST

    Plunger ØTheor. stroke 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
    2215.2166881051321501651834000.640.67DN 16
    2519.63861141361701942132363680.670.74DN 16
    3028.271231641962462793073412550.700.76DN 16
    3436.321592112523163593944381990.810.84DN 16
    3845.361982643153944494925471590.820.84DN 20
    4460.822663544235296026607331190.870.88DN 20
    5078.54344457546683777852947920.900.92DN 25
    60113.104956587879831,1191,2281,364640.910.93DN 32
    70153.946748951,0711,3391,5241,6711,856470.910.93DN 40
    75176.717741,0281,2291,5371,7491,9192,131410.910.93DN 40
    86232.351,0171,3521,6172,0212,3002,5232,802310.930.94DN 50
    90254.471,1141,4811,7712,2132,5192,7633,068280.930.94DN 50
    100314.161,3761,8282,1862,7333,1103,4113,788230.940.94DN 50
    110380.131,6652,2122,6453,3073,7634,1284,584190.950.95DN 50
    115415.481,8192,4182,8913,6144,1134,5125,010170.930.95DN 65
    130530.932,3253,0903,6954,6195,2565,7656,403140.940.95DN 65
    140615.752,6973,5834,2855,3576,0956,6877,426120.950.96DN 65

    Technical data for EF4F single head pump 60 Hz SST

    Plunger ØTheor. stroke 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
    2215.21801061271591814000.640.67DN 16
    2519.631031371642062343680.670.74DN 16
    3028.271491982372693372550.700.76DN 16
    3436.321912543053814331990.810.84DN 16
    5078.54414551659824937920.900.92DN 25
    3845.362393183814765411590.820.84DN 20
    4460.823214275106387261190.870.88DN 20
    360113.105977939501,1871,350640.910.93DN 32
    70153.948121,0801,2931,6161,838470.910.93DN 40
    75176.719331,2401,4841,8552,110410.910.93DN 40
    86232.351,2261,6311,9512,4392,774310.930.94DN 50
    90254.471,3431,7862,1372,6713,038280.930.94DN 50
    100314.161,6582,2052,3683,2983,751230.940.94DN 50
    110380.132,0072,6683,1933,9914,538190.950.95DN 50
    115415.482,1932,9163,4904,3624,960170.930.95DN 65
    130530.932,8033,7274,4595,5746,339140.940.95DN 65
    140615.753,2514,3225,1726,4657,352120.950.96DN 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 EF1F single head pump 50 Hz PVC/PVDF

    Plunger ØTheor. stroke 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
    80.803.54.75.67.08.08.79.7160.670.77DN 3
    101.265.57.38.710.912.413.615.2160.730.82DN 3
    121.817.910.512.615.717.919.721.8160.710.77DN 6
    215.5421.332.338.648.254.960.266.8160.780.82DN 10
    257.8534.445.754.768.377.885.394.7160.810.87DN 10
    2910.5746.361.573.691.9104.6114.8127.5160.840.89DN 10
    4424.33106.6141.6169.3211.7240.9264.2293.4150.940.96DN 16
    5031.42137.6182.8218.7273.3311.0341.2378.9120.950.96DN 16
    6042.27185.2246.0294.2367.8418.5459.1509.890.950.96DN 16

    Technical data for EF1F single head pump 60 Hz PVC/PVDF

    Plunger ØTheor. stroke 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
    80.804.25.66.88.49.6160.670.77DN 3
    101.266.68.810.613.215.0160.730.82DN 3
    121.819.612.715.219.021.6160.710.87DN 6
    215.5429.338.946.658.266.2160.780.85DN 10
    257.8541.555.166.082.593.8160.810.87DN 10
    2910.5755.874.288.8111.0126.2160.840.89DN 10
    4424.33128.5170.8204.4255.4290.5150.940.96DN 16
    5031.42165.9220.5263.9329.9375.1120.950.96DN 16
    6042.27223.2296.8355.1443.9504.790.950.96DN 16

    Note:

    Abridged presentation of our complete product range. Other plunger diameters (8 - 60 mm) on request. Other pressures (e.g. 21 bar) 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 EF2F single head pump 50 Hz PVC/PVDF

    Plunger ØTheor. stroke 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
    121.817.910.512.615.717.919.721.8160.710.77DN 6
    215.5424.332.338.648.254.960.266.8160.780.85DN 10
    257.8534.445.754.768.377.885.894.7160.810.87DN 10
    2910.5746.361.573.691.9104.6114.8127.5160.840.89DN 10
    4424.33106.6141.6169.3211.7240.9264.2296.4160.940.96DN 16
    5031.42137.6182.8218.7273.3311.0341.2378.9160.950.96DN 16
    5842.27185.2246.0294.2367.8418.5459.1509.8160.950.96DN 16

    Technical data for EF2F single head pump 60 Hz PVC/PVDF

    Plunger ØTheor. stroke 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
    121.819.612.715.219.021.6160.710.77DN 6
    215.5429.338.946.658.266.2160.780.85DN 10
    257.8541.555.166.082.593.8160.840.85DN 10
    2910.5755.874.288.8111.0126.2160.840.87DN 10
    4424.33128.5170.8204.4255.4290.5160.940.96DN 16
    5031.42165.9220.5263.9329.9375.1160.950.96DN 16
    5842.27223.2296.8355.1433.9504.7160.950.96DN 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
    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 EF3F single head pump 50 Hz PVC/PVDF

    Plunger ØTheor. stroke 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
    6377.93341453542678771846939160.920.93DN 32
    7096.214215596698379521,0441,160160.930.94DN 32
    75110.454836427689601,0931,1991,332160.940.95DN 32
    100196.358601,1421,3661,7081,9432,1321,063110.950.96DN 50

    Technical data for EF3F single head pump 60 Hz PVC/PVDF

    Plunger ØTheor. stroke 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
    6377.93411547654818930100.920.93DN 32
    7096.215086748021,0101,148100.930.94DN 32
    75110.455837759271,1591,318100.940.95DN 32
    100196.351,0361,3781,6492,0612,344100.950.96DN 50

    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
    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 EF4F single head pump 50 Hz PVC/PVDF

    Plunger ØTheor. stroke 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
    70153.906748951,0711,3391,5241,6711,856100.840.85DN 50
    75176.707741,0281,2291,5371,7491,9192,131100.850.86DN 50
    115415.501,8192,4182,8913,6144,1134,5125,010100.900.91DN 50
    130530.902,3253,0903,6954,6195,2535,7656,403100.920.93DN 65
    140615.802,6973,5834,2855,3576,0956,6877,426100.930.94DN 65

    Technical data for EF4F single head pump 60 Hz PVC/PVDF

    Plunger ØTheor. stroke 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
    70153.908121,0801,2931,6161,838100.840.85DN 50
    75176.709331,2401,8552,1101,484100.850.86DN 50
    115415.502,1932,9163,4904,3624,960100.900.91DN 50
    130615.802,8033,7274,4595,5746,339100.920.93DN 65
    140530.903,2514,3225,1726,4657,352100.930.94DN 65

    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
    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.

    Downloads for Process Hydraulic Diaphragm Metering Pump Orlita® Evolution API 674

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    Overview

    Maximum process reliability in accordance with API 674.

    Orlita® Evolution hydraulic diaphragm metering pumps ER1a, EF2F, EF3F and EF4F form an integrated product range with stroke lengths of 15 to 40 mm. This covers the capacity range from 3 to 7,400 l/h at 400 – 10 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 674.

    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% under 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

    Downloads

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