The Prominent ORLITA Evolution Hydraulic Diaphragm Metering Pump features a hydraulic drive that provides a smooth, uniform pumping action, which reduces diaphragm wear and extends pump life, ensuring leak-free operation and chemical resistance.

The ORLITA Evolution is available in a range of options, such as API 675 compliant designs for the oil and gas industry and explosion proof designs for hazardous environments. ATEX certified for use in explosion-hazardous Zone 1 or Zone 2.

The ORLITA Evolution hydraulic diaphragm metering pumps of the EF1a, EF2a, EF3a and EF4a series form a complete product range with stroke lengths from 15 to 40 mm. this covers a capacity range of 3 to 7,400 l/h at 400 – 10 bar.

 

Your benefits

• PTFE multi-layer diaphragm with integral diaphragm rupture warning/signalling system
• Unique diaphragm position control system ensures that the diaphragm is always in the correct position, helping to prevent leakage and improve pump accuracy.
• Integral hydraulic relief valve
• Automatic air venting system, able to discharge an effective amount of air bubbles from the piping and air inside the pump.
• Metering reproducibility is better than ± 1% within the 10-100% stroke length adjustment range under certain defined conditions and with proper installation
• Flexible modular design. Can be adjusted according to customer’s flow pressure temperature to achieve a maximum flow rate of 40L/h to a maximum of 52,000L/h.
• 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
• 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/signalling 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 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	Al2O3ceramic	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	230V/400V	50Hz	0.37kW	With PTC, speed control range 1:5
T	3-phase, IP 55	230V/400V 265V/460V	50Hz 60Hz	0.37kW
L	3-phase, IP 55, II 2G Ex de IIC T4 Gb	230V/400V	50Hz	0.37kW	With PTC, speed control range 1:5
Q	3-phase, IP 55, II 2G Ex de IIC T4	265V/460V	60Hz	0.45kW	With PTC, speed control range 1:5
V	1-phase, IP 55	230V	50Hz	0.75kW	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	230V/400V	50Hz	1.1kW	With PTC, speed control range 1:5
T	3-phase, IP 55	230V/400V 265V/460V	50Hz 60Hz	1.1kW
L	3-phase, IP 55, II 2G Ex de IIC T4 Gb	230V/400V	50Hz	1.1kW	With PTC, speed control range 1:5
Q	3-phase, IP 55, II 2G Ex de IIC T4	265V/460V	60Hz	1.1kW	With PTC, speed control range 1:5
V	3-phase, IP 55	230V	50Hz	1.5kW	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		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	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		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	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

 

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		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	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		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	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

Standard type of valve	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.

 

Field of application

The following list of applications is an example of applications that are generally suitable for this product. If necessary, please contact us and we will find a suitable product for your requirements.

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