Datasheet Content
TT551
TECHNICAL INFORMATION
Flow (L/min) 8
Flow (US Gpm) 2,11
Rotation regime (rpm) 2800
Pressure (MPa) 5
Pressure (bar) 50
Pressure (psi) 725
Power (hp) 1
Power (kW) 0,73
Overall dimensions L x l x h (mm) 177x175x130
Weight (kg) 5,2
TT551 3/21/2026 Page 1 - 11
Copyright INTERPUMP GROUP S.P.A
TT551
Documents
Male shaft (key) - GAS
Hollow shaft (key) + vers. B - GAS
VH Version
TT551 3/21/2026 Page 2 - 11
Copyright INTERPUMP GROUP S.P.A
Illustration Male shaft (key) - GAS
TT551 3/21/2026 Page 3 - 11
Copyright INTERPUMP GROUP S.P.A
Illustration Male shaft (key) - GAS
Pos. Code Description Qty Notes
KIT1 34000101 KIT 1 INTAKE/DELIVERY VALVE 1
KIT97 34009701 1
KIT96 34009601 1
KIT86 34008601 1
KIT84 34008401 1
KIT83 34008301 1
46 36200251 VALVE CAGE 6
45 94737600 SPRING D. 9,4X14,8 6
44 36200176 VALVE PLATE 6
43 36200366 VALVE SEAT 6
42 90384100 O-RING 17,12X2,62 (3068) 6
41 90383300 O-RING 13,95X2,62 (3056) 1
40 91487700 KEY 8(h9)X7X25 UNI 6604/A 1
39 36703201 VALVE ASSY. 6
38 90385900 O-RING 25,07X2,62 (3100) 1
37 47221301 OIL SIGHT GLASS ASSY G3/4 1
36 91801400 1
35 51030022 3
34 97731000 3
33 51050056 3
32 90156500 3
31 96707000 3
30 51040009 3
29 96693800 WASHER 6,4X10X0,7 8
28 99194300 8
27 51080070 3
26 90262000 PACKING D. 15X25X5/3,1 3
25 51100051 HEAD RING D. 15 3
24 90383500 O-RING 15,08X2,62 (119) 3
23 90360400 O-RING 25,12X1,78 (2100) 3
22 98210000 PLUG G3/8X13 1
21 51010622 1
20 50150074 CRANKCASE COVER 1
19 90164100 OIL SEAL D.25X62X10 1
18 91832800 1
17 90063500 CIRCLIP D. 25 UNI 7435 1
16 51020065 1
15 98210050 PLUG G3/8x13 TE22 1
14 99180700 SCREW M 6x12 UNI 5739 4
TT551 3/21/2026 Page 4 - 11
Copyright INTERPUMP GROUP S.P.A
Illustration Male shaft (key) - GAS
Pos. Code Description Qty Notes
13 90391700 1
12 51160022 1
11 51209051 1
10 90502200 ANTI-EXTRUSION RING 3
9 90357300 O-RING D. 5,28X1,78 (2021) 3
8 92221600 NUT M8X13X5 3
7 44211570 WASHER D. 8 3
6 51120041 1
5 90384700 O-RING 20,29X2,62(3081) 6
4 98221800 6
3 98204100 PLUG G1/4X9 1
2 98210300 OIL DIP-STICK G3/8X51 1
1 99186700 SCREW M 6x18 UNI 5931 4
TT551 3/21/2026 Page 5 - 11
Copyright INTERPUMP GROUP S.P.A
Illustration Hollow shaft (key) + vers. B - GAS
TT551 3/21/2026 Page 6 - 11
Copyright INTERPUMP GROUP S.P.A
Illustration Hollow shaft (key) + vers. B - GAS
Pos. Code Description Qty Notes
KIT1 34000101 KIT 1 INTAKE/DELIVERY VALVE 1
KIT97 34009701 1
KIT96 34009601 1
KIT86 34008601 1
KIT84 34008401 1
KIT83 34008301 1
49 99306700 SCREW M 8x25 UNI 5739 4
48 96701400 WASHER 8,4X13X0,8 4
47 10034522 1
46 36200251 VALVE CAGE 6
45 94737600 SPRING D. 9,4X14,8 6
44 36200176 VALVE PLATE 6
43 36200366 VALVE SEAT 6
42 90384100 O-RING 17,12X2,62 (3068) 6
41 90383300 O-RING 13,95X2,62 (3056) 1
39 36703201 VALVE ASSY. 6
38 90385900 O-RING 25,07X2,62 (3100) 1
37 47221301 OIL SIGHT GLASS ASSY G3/4 1
36 91801400 1
35 51030022 3
34 97731000 3
33 51050056 3
32 90156500 3
31 96707000 3
30 51040009 3
29 96693800 WASHER 6,4X10X0,7 12
28 99194300 8
27 51080070 3
26 90262000 PACKING D. 15X25X5/3,1 3
25 51100051 HEAD RING D. 15 3
24 90383500 O-RING 15,08X2,62 (119) 3
23 90360400 O-RING 25,12X1,78 (2100) 3
22 98210000 PLUG G3/8X13 1
21 51010622 1
19 90165100 ANELLO RAD. 30.0x62.0x10.0 1
18 91837300 1
17 90066700 CIRCLIP D. 30 UNI 7435 1
16 51021265 1
15 98210050 PLUG G3/8x13 TE22 1
TT551 3/21/2026 Page 7 - 11
Copyright INTERPUMP GROUP S.P.A
Illustration Hollow shaft (key) + vers. B - GAS
Pos. Code Description Qty Notes
13 90391700 1
12 51160022 1
11 51209051 1
10 90502200 ANTI-EXTRUSION RING 3
9 90357300 O-RING D. 5,28X1,78 (2021) 3
8 92221600 NUT M8X13X5 3
7 44211570 WASHER D. 8 3
6 51120041 1
5 90384700 O-RING 20,29X2,62(3081) 6
4 98221800 6
3 98204100 PLUG G1/4X9 1
2 98210300 OIL DIP-STICK G3/8X51 1
1 99186700 SCREW M 6x18 UNI 5931 8
TT551 3/21/2026 Page 8 - 11
Copyright INTERPUMP GROUP S.P.A
Illustration VH Version
TT551 3/21/2026 Page 9 - 11
Copyright INTERPUMP GROUP S.P.A
Illustration VH Version
Pos. Code Description Qty Notes
KIT102 34010201 1
KIT94 34009401 KIT 94 CHIMJET 1
KR/CONTROLSET
135 92982800 WING NUT G3/4 1
134 36256970 1
133 90382800 O-RING 12,37X2,62 (3050) 1
132 92892500 FILTER D. 12X35 1
131 36318251 INLET NIPPLE G 3/4 1
130 90384100 O-RING 17,12X2,62 (3068) 1
127 36256670 CHEM. HOSE BARB FITTING 1
126 90357000 O-RING 4,48X1,78 (2018) 2
125 36256551 CHEM. REGULATION KNOB 1
124 36256470 INJECTOR SHUTTER 1
123 36256370 CHEM. INJECTOR VALVE SEAT 1
122 90358500 O-RING 10,82X1,78 (2043) 1
121 36318151 INJECTOR BODY 1
120 90358000 O-RING 8,73X1,78 SPEC. (108) 1
119 94738300 SPRING D.9,75X10 1
118 90357200 O-RING 5,28X1,78 SPEC. (2021) 1
117 97478200 BALL 7/32(5,556) STAINLESS 1
116 94821700 TAPER SPRING D.4,3X7,3X11 1
115 90358200 O-RING 9,25X1,78 (2037) 1
114 10007666 NOZZLE DIAM. 2,2 1
114 10015166 NOZZLE D. 2.0 1
114 10043770 1
109 98204100 PLUG G1/4X9 2
108 98205700 PLUG M14X1,5X9 1
107 51120541 1
107 51120141 1
105 10031870 1
105 10007870 NIPPLE D. 3 G3/8 1
105 10014770 NIPPLE G3/8 / M22X1,5 BORE 1
D.3
103 36316466 CONTROLSET W1 VALVE SEAT 1
102 99150900 SCREW M5X7.5 STAINLESS 1
101 36319066 SPHERICAL VALVE 1
100 90507500 1
99 90358900 1
98 36316570 1
TT551 3/21/2026 Page 10 - 11
Copyright INTERPUMP GROUP S.P.A
Illustration VH Version
Pos. Code Description Qty Notes
97 90502500 ANTI-EXTRUSION RING (OR 106) 1
96 36318970 1
95 90382200 O-RING 9,92X2,62 SPEC. (112) 3
94 90506500 ANTI-EXTRUSION RING (OR 112) 2
93 36333151 1
92 90357500 O-RING 6,75X1,78 SPEC. (2106) 3
91 94733200 1
90 36318870 1
89 90384700 O-RING 20,29X2,62(3081) 1
88 36318470 1
87 94743600 SPRING Dm 15X35 1
86 36316970 SPRING PLATE 1
85 36318570 PRESSURE REG.SCREW 1
84 90359800 O-RING 20,35X1,78 (2081) 1
83 99305400 SCREW M8X20 UNI 5923 12.9 1
82 92221800 NUT M8X1,25X5X13 UNI 5589 1
81 36318751 PRESSURE REGULATION KNOB 1
55 90383200 O-RING 13,95X2,62 SPEC. (3056) 1
TT551 3/21/2026 Page 11 - 11
Copyright INTERPUMP GROUP S.P.A
