Marzocchi gear pump GHP series gear pump specifications

Marzocchi GHP series gear pumps include three core series of GHP1, GHP2, and GHP3. Each series has differences in key parameters such as displacement, pressure, and speed, and some models are identified by suffixes. Functional characteristics.The following is a summary of specific specifications：

1. GHP1 series
   Common models: GHP1, GHP1-T, GHP1-MU, GHP1A, GHP1A-D-5-FG, etc.
   Displacement: 1.4 to 13.8 cc/rev (some models such as GHP1-D-5 have a geometric displacement of 93 cc/rev, which may be contradictory due to differences in measurement methods or models, and the specific product specifications shall prevail).
   Pressure level：
   Maximum continuous pressure: 270 bar；
   Maximum intermittent pressure: 290 bar；
   Maximum peak pressure: 310 bar.
   Speed: 1000 to 6000 rpm (some models such as GHP1-D-5 have a speed range of 1000-3000 rpm).
   Features: Compact structure, suitable for hydraulic systems with limited space; some models support high-temperature liquid applications (temperature range -10℃ to 120℃, no more than 80℃ with pressure valve).
2. GHP2 series
   Common models: GHP2, GHP2-T, GHP2-MU, GHP2A, GHP2A-KA, GHP2-D-20, etc.
   Displacement: 4.5 to 28.2 cc/rev (for example, GHP2-D-20 displacement is 20 cc/rev).
   Pressure level：
   Maximum continuous pressure: 280 bar；
   Maximum intermittent pressure: 295 bar；
   Maximum peak pressure: 310 bar.
   Speed: up to 4000 rpm.
   Application: plastic forming machine, construction hydraulic equipment, etc.
   Features: High speed, high pressure bearing capacity, some models support customized specifications.

Third, GHP3 series
Common models: GHP3, GHP3-MU, GHP3A, GHP3A-MU, GHP3A2, GHP3BK1, GHP35, GHP3-D-30/33/40, etc.
Displacement: 20 to 87 cc/Rev.
Pressure level：
Maximum continuous pressure: 280 bar；
Maximum intermittent pressure: 295 bar；
Maximum peak pressure: 310 bar.
Speed: up to 3500 rpm.
Features: It is suitable for high-flow and high-pressure applications. Some models are designed with triple pumps (such as GHP3-D-50).

Fourth, the meaning of the model suffix
D-X-FG: such as GHP1A-D-5-FG, where “D” may represent displacement or performance parameters, and “FG” may involve surface treatment, material or configuration (such as flange type, sealing material).
T/MU: Such as GHP1-T, GHP1-MU, may represent a specific installation method (such as interface type) or modular design.
A/A2/AF: Such as GHP1A, GHP1A2, GHP1AF, it may be designed for different flow or pressure requirements.

5. General parameters and characteristics
   Material: The pump body is aluminum alloy, and the end cap is cast aluminum.
   Drive method: electric or hydraulic.
   Installation oil port: European standard flange oil port, standard oil port has strong versatility.
   Media compatibility: mineral oil, bio-oil and other hydraulic oils.
   Conditions of use：
   Oil temperature: 15-60℃ (some models support -40℃ to 120℃)；
   Viscosity range: 20-400 cSt；
   Hydraulic oil cleanliness: NAS10 level, 100µm oil filter needs to be installed at the oil suction port.
6. Application areas
   Industrial hydraulic system: provide stable power for hydraulic equipment.
   Mobile machinery: construction machinery, agricultural equipment, etc.
   Special working conditions: high-temperature liquids, high- and low-temperature fluids, phosphate-containing media, etc. (You need to choose the corresponding model).

GHP1 series gear pump
GHP1-D-2 2. GHP1-D-3 3. GHP1-D-4 4. GHP1-D-5 5. GHP1-D-6
GHP1-D-7 7. GHP1-D-9 8. GHP1-D-11 9. GHP1-D-13 10. GHP1-D-16
GHP1-D-20 12. GHP1-S-2 13. GHP1-S-3 14. GHP1-S-4 15. GHP1-S-5
GHP1-S-6 17. GHP1-S-7 18. GHP1-S-9 19. GHP1-S-11 20. GHP1-S-13
GHP1-R-2 22. GHP1-R-3 23. GHP1-R-4 24. GHP1-R-5 25. GHP1-R-6
GHP1-R-7 27. GHP1-R-9 28. GHP1-R-11 29. GHP1-R-13 30. GHP1-R-16
GHP1A-D-2 32. GHP1A-D-3 33. GHP1A-D-4 34. GHP1A-D-5 35. GHP1A-D-6
GHP1A-D-7 37. GHP1A-D-9 38. GHP1A-D-11 39. GHP1A-D-13 40. GHP1A-D-16
GHP1A-S-2 42. GHP1A-S-3 43. GHP1A-S-4 44. GHP1A-S-5 45. GHP1A-S-6
GHP1A-R-2 47. GHP1A-R-3 48. GHP1A-R-4 49. GHP1A-R-5 50. GHP1A-R-6
GHP1AQ-D-4 52. GHP1AQ-D-6 53. GHP1AQ-D-9 54. GHP1AQ-S-4 55. GHP1AQ-S-6
GHP1A2-D-3 57. GHP1A2-D-5 58. GHP1A2-D-7 59. GHP1A2-R-4 60. GHP1A2-R-6
GHP2 series gear pump
GHP2-D-6 62. GHP2-D-9 63. GHP2-D-10 64. GHP2-D-12 65. GHP2-D-13
GHP2-D-16 67. GHP2-D-20 68. GHP2-D-22 69. GHP2-D-25 70. GHP2-D-30
GHP2-D-34 72. GHP2-D-37 73. GHP2-D-40 74. GHP2-D-50 75. GHP2-S-6
GHP2-S-9 77. GHP2-S-10 78. GHP2-S-12 79. GHP2-S-13 80. GHP2-S-16
GHP2-S-20 82. GHP2-S-25 83. GHP2-S-30 84. GHP2-S-34 85. GHP2-R-6
GHP2-R-9 87. GHP2-R-10 88. GHP2-R-12 89. GHP2-R-13 90. GHP2-R-16
GHP2-R-20 92. GHP2-R-25 93. GHP2-R-30 94. GHP2A-D-6 95. GHP2A-D-9
GHP2A-D-10 97. GHP2A-D-12 98. GHP2A-D-13 99. GHP2A-D-16 100. GHP2A-D-20
GHP2A-D-22 102. GHP2A-D-25 103. GHP2A-D-30 104. GHP2A-D-34 105. GHP2A-D-37
GHP2A-D-40 107. GHP2A-D-50 108. GHP2A-S-6 109. GHP2A-S-9 110. GHP2A-S-12
GHP2A-S-16 112. GHP2A-S-20 113. GHP2A-S-25 114. GHP2A-S-30 115. GHP2A-R-6
GHP2A-R-9 117. GHP2A-R-12 118. GHP2A-R-16 119. GHP2A-R-20 120. GHP2A-R-25
GHP2A-R-30 122. GHP2A-R-40 123. GHP2A-R-50 124. GHP2-T-D-16 125. GHP2-MU-D-20
GHP2A-KA-D-25 127. GHP2A-D-16-FG 128. GHP2A-D-25-FG 129. GHP2A-D-34-FG 130. GHP2A-D-40-FG
GHP3 series gear pump
GHP3-D-20 132. GHP3-D-30 133. GHP3-D-33 134. GHP3-D-40 135. GHP3-D-50
GHP3-D-60 137. GHP3-D-63 138. GHP3-D-70 139. GHP3-D-80 140. GHP3-D-87
GHP3-S-20 138. GHP3-S-30 139. GHP3-S-40 140. GHP3-S-50 141. GHP3-S-60
GHP3-R-20 143. GHP3-R-30 144. GHP3-R-40 145. GHP3-R-50 146. GHP3-R-60
GHP3A-D-20 148. GHP3A-D-30 149. GHP3A-D-33 150. GHP3A-D-40 151. GHP3A-D-50
GHP3A-D-60 153. GHP3A-D-63 154. GHP3A-D-70 155. GHP3A-D-80 156. GHP3A-D-87
GHP3A-S-20 158. GHP3A-S-30 159. GHP3A-S-40 160. GHP3A-S-50 161. GHP3A-R-20
GHP3A-R-30 163. GHP3A-R-40 164. GHP3A-MU-D-30 165. GHP3A2-D-40 166. GHP3BK1-D-16
GHP35-D-50 168. GHP3-D-80-FG 169. GHP3A-D-40-FG 170. GHP3A-D-60-FG 171. GHP3-D-120
GHP3-D-33-FG 173. GHP3A-D-30-FG 174. GHP3A-D-50-FG 175. GHP3A-D-70-FG 176. GHP3A2-D-60
GHP3-MU-D-40 178. GHP3A-MU-D-50 179. GHP3BK1-D-20 180. GHP35-D-60
GHP-H ultra-high pressure series + double pump
GHP-H1-D-20 182. GHP-H2-D-40 183. GHP-H1-D-20-FG 184. GHP-H2-D-40-FG
GHPA3-D-33+GHPP2-D-22 186. GHPA3-D-30+GHPP2-D-25 187. ALPA3-D-50-FG+GHPP2-D-16-FG
ALPA2-D-20+ALPP1-D-6 189. GHP3-D-50 triple pump 190. GHPA3-1-33+GHPP2-D-22
GHP1A-D-4+GHP2-D-16 192. GHP2A-D-20+GHP3-D-30 193. GHP1AQ-D-6+GHP2A-D-12
GHP3A-D-40+GHP2A-D-25 195. GHP-H1-D-20+GHP2-D-16 196. GHP1A-D-13-FG 197. GHP1-D-6-FG
GHP1-D-7-G-FG 199. GHP2-D-34-FG 200. GHP3A-D-80-FG