Datasheet Content
E3B1021
TECHNICAL INFORMATION
Flow (L/min) 21
Flow (US Gpm) 5,55
Rotation regime (rpm) 1450
Pressure (MPa) 10
Pressure (bar) 100
Pressure (psi) 1450
Power (hp) 5,5
Power (kW) 4,04
Overall dimensions L x l x h (mm) 265x223x140
Weight (kg) 9,5
E3B1021 3/21/2026 Page 1 - 11
Copyright INTERPUMP GROUP S.P.A
E3B1021
Documents
Male shaft (key)
Pump head with VH integrated valve
Hollow shaft (key) Ø28 - vers. B
E3B1021 3/21/2026 Page 2 - 11
Copyright INTERPUMP GROUP S.P.A
Illustration Male shaft (key)
E3B1021 3/21/2026 Page 3 - 11
Copyright INTERPUMP GROUP S.P.A
Illustration Male shaft (key)
Pos. Code Description Qty Notes
KIT291 34029101 KIT 291*TENUTA COMPLETA 1
D.22 (59)
KIT286 34028601 KIT 286 PACKING D.22 58 1
SERIES
KIT271 34027101 KIT 271 OIL SEAL D.15 1
58/59 SERIES
KIT270 34027001 KIT 270 VALVE PLUGS 58 1
SERIES
KIT269 34026901 KIT 269 INTAKE/DELIVERY 1
VALVES
63 50200074 PUMP FOOT 2
62 96701600 WASHER 8,4 4
61 99303700 SCREW M 8x16-5739 4
60 91489200 KEY 8(h9)X7X35 UNI 6604/A 1
59 90164800 OIL SEAL 30x55x7 1
58 47151022 OPEN SIDE COVER (47-66) 1
57 90358500 O-RING 10,82X1,78 (2043) 1
56 98204250 PLUG G1/4"x12 1
55 59160022 REAR CRANKCASE COVER 1
54 90392200 O-RING D.133.02X 2,62(3525) 1
53 98211300 ASTA LIVELLO OLIO G3/8x54 D.4 1
52 97567800 SHIM D.74,5X104X0,1 1
52 97568000 SHIM D.74.5X104X0.3 1
51 90391300 O-RING 67,95X2,62 (3268) 2
50 91837500 TAPER BEARING 2
49 99303900 SCREW M 8x16 UNI 5931 12
48 90075600 CIRCLIP D.45 (ZJ45) 1
47 59020135 CRANKSHAFT C. 13 1
46 70211801 OIL SIGHT GLASS 1
45 90387700 O-RING 39,34X2,62 (3156) 1
44 47151222 SIDE CRANKCASE COVER FOR 1
OIL GAUGE
43 99309900 SCREW M 8x35 UNI 5931 6
42 59030001 CONNECTING ROD COMPLETE 3
41 97739900 GUDGEON PIN D.14X34 3
40 59050066 PISTON GUIDE 3
39 90156550 OIL SEAL D.15X24X5/7 3
38 58210451 PROTECTION 1
37 59010022 PUMP CRANKCASE 1
36 59211082 SPONGE GASKET D.3X103 1
35 96699000 WASHER D.7.5X23X0.5 3
E3B1021 3/21/2026 Page 4 - 11
Copyright INTERPUMP GROUP S.P.A
Illustration Male shaft (key)
Pos. Code Description Qty Notes
34 96751400 WASHER 21,5X27X1,5 1
33 98217600 PLUG G1/2X10 1
32 96738000 WASHER 17,5X23X1,5 1
31 98210000 PLUG G3/8X13 1
30 59210970 RING FOR SEAL D.22 3
29 90271500 PACKING D.22X30X6.5 LP (66) 3
27 90361200 O-RING 31,47X1,78 (2125) 3
26 59606201 PACKING RETAINER+SLEEVE 3
D.22
25 90514850 ANTI-EXTRUSION RING 3
D.22X32X2
24 90271600 PACKING D.22X32X6/3.7 H.P. 3
66 SERIES
23 66100951 HEAD RING D. 22 H.P. 3
22 99317700 VITE M08x60 5931 12.9 8
G321A+M
21 98213700 VALVE CAP M18X1,5X10 3
20 90359300 O-RING 15,60X1,78 (2062) 3
19 98196600 PLUG G1/8X8 1
18 36719301 OUTLET VALVE 3
17 36211151 VALVE CAGE 3
16 94733300 SPRING D.6.2x10.5 S.S. 3
15 36211276 SPHERICAL VALVE 3
14 36211366 VALVE SEAT 3
13 90367400 O-RING D. 12X2 (120-20) 3
12 59040109 PISTON D.22X42 3
11 96690500 WASHER D.5X11.5x0.4 3
INOX+FKM58/59/63HT
10 99169000 SCREW M05X55 SPEC. A2-70 3
9 98222600 VALVE CAP M24X1,5X17 3
8 90384700 O-RING 20,29X2,62(3081) 3
7 36711501 INTAKE/DELIVERY VALVE 3
6 90384100 O-RING 17,12X2,62 (3068) 3
5 36200366 VALVE SEAT 3
4 36200176 VALVE PLATE 3
3 94737600 SPRING D. 9,4X14,8 3
2 36202551 VALVE CAGE 3
1 59120441 MANIFOLD FOR PISTON D.22 1
E3B1021 3/21/2026 Page 5 - 11
Copyright INTERPUMP GROUP S.P.A
Illustration Pump head with VH integrated valve
E3B1021 3/21/2026 Page 6 - 11
Copyright INTERPUMP GROUP S.P.A
Illustration Pump head with VH integrated valve
Pos. Code Description Qty Notes
KIT280 34028001 KIT 280 FIXED CHEM.INJECTOR 1
58-59
KIT279 34027901 KIT 279 ADJUSTABLE CHEM. INJ. 1
58-59
KIT278 34027801 KIT 278 BUILT-IN VALVE 58-59 1
47 36605401 H REG.VALVE ASSY. 1
46 59120941 MANIFOLD D.22 W/VALVE 1
45 36349270 CHEM. HOSE BARB FITTING 1
44 36348451 DETERGENT KNOB 1
43 97661500 ELASTIC PIN D. 2X12 1
42 36334270 SHUTTER WITH HOSE FITTING 1
41 94733400 SPRING D.6.4X12.5 1
40 36348270 CHEM. HOSE BARB FITTING 1
39 90357300 O-RING D. 5,28X1,78 (2021) 2
38 97478200 BALL 7/32(5,556) STAINLESS 1
37 94821700 TAPER SPRING D.4,3X7,3X11 1
36 10079866 INJECTOR NOZZLE D.2.20 1
ORANGE
36 10079566 NOZZLE D. 2.00 1
35 92982800 WING NUT G3/4 1
34 36256951 INLET HOSE BARB FITTING (PL.) 1
33 90382800 O-RING 12,37X2,62 (3050) 1
32 92892500 FILTER D. 12X35 1
31 36318251 INLET NIPPLE G 3/4 1
30 90384100 O-RING 17,12X2,62 (3068) 1
29 98204100 PLUG G1/4X9 1
28 90358500 O-RING 10,82X1,78 (2043) 1
27 36348870 NIPPLE D.3 M22X1.5 M 1
27 36348970 NIPPLE D.3 G3/8F 1
27 36347970 NIPPLE D.3 G3/8M 1
27 36348770 NIPPLE D.3 3/8NPT M 1
27 36349070 NIPPLE D.3 3/8NPT F 1
26 90383900 O-RING 15,88X2,62 (121) 1
25 36310451 VALVE GUIDE 1
24 94735500 SPRING D. 8,5X12 1
23 97483800 BALL 13/32 (10,319) 1
22 90382300 O-RING 9,92X2,62 (112) 1
21 36348366 REG. VALVE SEAT 1
20 90357800 O-RING 7,66X1,78 (2031) 1
E3B1021 3/21/2026 Page 7 - 11
Copyright INTERPUMP GROUP S.P.A
Illustration Pump head with VH integrated valve
Pos. Code Description Qty Notes
19 90503800 ANTI-EXTR.RING D.9X12X1.5 1
18 90358100 O-RING 8,73X1,78 - (108) 1
17 90358700 O-RING D. 11,11X1,78 (114) 1
15 36347770 MAX.PRESSURE NUT 1
14 99126700 SCREW M4X5 UNI5929 S.S. 1
6 94739500 SPRING D.11,3x34,5 1
5 36348651 SLIDE WASHER 2
4 36348170 PRESSURE ADJUST SCREW 1
3 90384500 O-RING 18,72X2,6 (3075) 1
2 10084666 REGULATION KNOB YOKE 1
1 36350651 REGULATION KNOB - RED S. 1
53-58-59
E3B1021 3/21/2026 Page 8 - 11
Copyright INTERPUMP GROUP S.P.A
Illustration Hollow shaft (key) Ø28 - vers. B
E3B1021 3/21/2026 Page 9 - 11
Copyright INTERPUMP GROUP S.P.A
Illustration Hollow shaft (key) Ø28 - vers. B
Pos. Code Description Qty Notes
KIT291 34029101 KIT 291*TENUTA COMPLETA 1
D.22 (59)
KIT286 34028601 KIT 286 PACKING D.22 58 1
SERIES
KIT271 34027101 KIT 271 OIL SEAL D.15 1
58/59 SERIES
KIT270 34027001 KIT 270 VALVE PLUGS 58 1
SERIES
KIT269 34026901 KIT 269 INTAKE/DELIVERY 1
VALVES
65 96701400 WASHER 8,4X13X0,8 4
64 99306700 SCREW M 8x25 UNI 5739 4
63 99308400 SCREW M 8x30 UNI 5931 4
62 91858500 NEEDLE BEARING HK5025 1
61 90169000 OIL SEAL D. 45X62X8 1
60 10086622 FLANGIA MOT. ELETT. 100-112 1
B14 "B" (S.59)
59 99303900 SCREW M 8x16 UNI 5931 4
58 90358500 O-RING 10,82X1,78 (2043) 1
57 98204250 PLUG G1/4"x12 1
56 59160022 REAR CRANKCASE COVER 1
55 90392200 O-RING D.133.02X 2,62(3525) 1
54 98211300 ASTA LIVELLO OLIO G3/8x54 D.4 1
53 66150274 SIDE COVER 1
52 91837600 ROLLER BEARING NUP206ECP 1
51 99306900 SCREW M 8x25 UNI 5931 4
50 90066700 CIRCLIP D. 30 UNI 7435 1
49 59020965 CRANKSHAFT C.13 (HOLLOW 1
D.28)
48 44211801 SPACER+OIL LEVEL GAUGE 1
47 90409700 O-RING 55,56X3,53 (159) 1
46 90391300 O-RING 67,95X2,62 (3268) 2
45 90085000 CIRCLIP D. 62 UNI 7437 1
44 59150022 SIDE CRANKCASE COVER 1
43 99309900 SCREW M 8x35 UNI 5931 6
42 59030001 CONNECTING ROD COMPLETE 3
41 97739900 GUDGEON PIN D.14X34 3
40 59050066 PISTON GUIDE 3
39 90156550 OIL SEAL D.15X24X5/7 3
38 58210451 PROTECTION 1
37 59010022 PUMP CRANKCASE 1
E3B1021 3/21/2026 Page 10 - 11
Copyright INTERPUMP GROUP S.P.A
Illustration Hollow shaft (key) Ø28 - vers. B
Pos. Code Description Qty Notes
36 59211082 SPONGE GASKET D.3X103 1
35 96699000 WASHER D.7.5X23X0.5 3
34 96751400 WASHER 21,5X27X1,5 1
33 98217600 PLUG G1/2X10 1
32 96738000 WASHER 17,5X23X1,5 1
31 98210000 PLUG G3/8X13 1
30 59210970 RING FOR SEAL D.22 3
29 90271500 PACKING D.22X30X6.5 LP (66) 3
27 90361200…
