Complete Model List of Marzocchi Gear Pump GHP Series
The Marzocchi GHP series is a high-pressure external gear pump, featuring a structure of aluminum pump body + cast iron flanges and end caps. It is suitable for heavy-duty working conditions such as construction machinery and agricultural machinery. The series is divided into three main sub-series: GHP1 (1.4-13.8cc/rev), GHP2 (4.5-28.2cc/rev), and GHP3 (20-87cc/rev), each with a variety of installation configurations and displacement options.
I. Nomenclature Rules for GHP Series Models
The model of the GHP series consists of the following parts: GHP[Series][Variant]-[Rotation Direction]-[Displacement Code]-[Installation Option]-[Special Function]
|
Part
|
Description
|
Common Options
|
|---|---|---|
|
Series
|
GHP1/GHP2/GHP3
|
1 (Small), 2 (Medium), 3 (Large)
|
|
Variant
|
A/A2/BK1/MU, etc.
|
A (SAE Flange), A2 (Dual Outlet), BK1 (Bosch Flange), MU (Special Installation)
|
|
Rotation Direction
|
D/S/R
|
D (Clockwise), S (Counterclockwise), R (Reversible)
|
|
Displacement Code
|
2/3/4/5/6, etc.
|
Corresponding to different displacement values (cc/rev)
|
|
Installation Option
|
Flange + Shaft + Port Combination
|
C0/C1/C2 (Shaft Type), TO/T (Flange Type), E/FA (Port Type)
|
|
Special Function
|
FG/V/ST, etc.
|
FG (Standard Seal), V (Special Seal), ST (Silent Type)
|
II. GHP1 Series (1.4-13.8cc/rev)
Basic Models and Variants
-
Basic Model: GHP1
-
Derived Models: GHP1-T, GHP1-MU, GHP1A, GHP1A2, GHP1AQ, GHP1BK1
Common Displacement Specifications (cc/rev) and Corresponding Codes
|
Displacement Code
|
Displacement Value
|
Displacement Code
|
Displacement Value
|
|---|---|---|---|
|
2
|
1.4
|
9
|
6.7
|
|
3
|
2.0
|
11
|
7.8
|
|
4
|
2.8
|
13
|
9.3
|
|
5
|
3.5
|
16
|
11.4
|
|
6
|
4.2
|
–
|
–
|
|
7
|
5.0
|
–
|
–
|
Typical Model Examples
-
GHP1-D-2-FG: Rotates clockwise, 1.4cc/rev, standard installation, standard seal
-
GHP1A-D-4-C0: Rotates clockwise, 2.8cc/rev, SAE flange, standard cylindrical shaft
-
GHP1A2-D-13: Rotates clockwise, 9.3cc/rev, SAE flange with dual outlets
-
GHP1-D-2-TO-E-FG: Rotates clockwise, 1.4cc/rev, European standard flange, threaded port
-
GHP1-R-6: Reversible rotation, 4.2cc/rev, basic installation configuration
III. GHP2 Series (4.5-28.2cc/rev)
Basic Models and Variants
-
Basic Model: GHP2
-
Derived Models: GHP2-T, GHP2-MU, GHP2A, GHP2A2, GHP2AQ, GHP2BK1
Common Displacement Specifications (cc/rev) and Corresponding Codes
|
Displacement Code
|
Displacement Value
|
Displacement Code
|
Displacement Value
|
|---|---|---|---|
|
6
|
4.5
|
20
|
14.8
|
|
9
|
6.7
|
22
|
16.3
|
|
10
|
7.4
|
25
|
18.2
|
|
12
|
8.8
|
28
|
20.6
|
|
13
|
9.3
|
30
|
22.0
|
|
16
|
11.4
|
35
|
25.6
|
|
18
|
12.8
|
40
|
28.2
|
Typical Model Examples
-
GHP2A-D-10-FG: Rotates clockwise, 7.4cc/rev, SAE flange, standard seal
-
GHP2-D-20: Rotates clockwise, 14.8cc/rev, basic installation configuration
-
GHP2A2-D-13: Rotates clockwise, 9.3cc/rev, SAE flange with dual outlets
-
GHP2BK1-D-25-C1: Rotates clockwise, 18.2cc/rev, Bosch flange, special shaft configuration
-
GHP2A-D-40-FG: Rotates clockwise, 28.2cc/rev, SAE flange, standard seal
IV. GHP3 Series (20-87cc/rev)
Basic Models and Variants
-
Basic Model: GHP3
-
Derived Models: GHP3-T, GHP3-MU, GHP3A, GHP3A2, GHP3BK1, GHP35
Common Displacement Specifications (cc/rev) and Corresponding Codes
|
Displacement Code
|
Displacement Value
|
Displacement Code
|
Displacement Value
|
|---|---|---|---|
|
30
|
20.0
|
63
|
45.0
|
|
40
|
28.2
|
71
|
50.0
|
|
50
|
35.0
|
80
|
56.0
|
|
56
|
40.0
|
87
|
61.0
|
Typical Model Examples
-
GHP3-D-30: Rotates clockwise, 20.0cc/rev, basic installation configuration
-
GHP3A-D-50-FG: Rotates clockwise, 35.0cc/rev, SAE flange, standard seal
-
GHP3-D-87: Rotates clockwise, 61.0cc/rev, basic installation configuration
-
GHP3A2-D-63: Rotates clockwise, 45.0cc/rev, SAE flange with dual outlets
-
GHP3BK1-D-71: Rotates clockwise, 50.0cc/rev, Bosch flange, special shaft configuration
V. Special Configuration Models
1. Reversible Models (R)
-
GHP1-R-4, GHP2-R-10, GHP3-R-50: Bidirectional rotation, suitable for applications requiring forward and reverse rotation
2. Independent Transmission Models (T/RA)
-
GHP1-T-6, GHP2A-RA-13, GHP3-T-40: Equipped with an independent transmission system, suitable for special installation requirements
3. Silent Models (ST)
-
GHP1A-D-5-ST, GHP2-D-20-ST, GHP3A-D-50-ST: Optimized design to reduce operating noise
VI. Installation Configuration Options for GHP Series
|
Configuration Type
|
Common Options
|
Description
|
|---|---|---|
|
Flange Type
|
European Standard / SAE A/B / Bosch Rectangular
|
Different connection methods and installation dimensions
|
|
Shaft Type
|
Tapered Shaft / Cylindrical Shaft / Splined Shaft (9T/11T)
|
Different transmission connection methods
|
|
Port Type
|
E (Standard) / FA (Special) / Threaded Port
|
Different positions and connection methods of oil inlet and outlet
|
|
Seal Type
|
FG (Standard) / V (Chemical Resistant) / Other Special
|
Suitable for different working media and environments
|
VII. Differences Between GHP Series and ALP Series
The GHP series is similar in structure to the ALP series, but theGHP series adopts cast iron flanges and end caps, which can withstand higher pressure (up to 310bar) and is suitable for harsher working conditions; while the ALP series has an all-aluminum structure with a slightly lower pressure level (up to 250bar).
Summary
The Marzocchi GHP series offers a wide displacement range from1.4cc/rev to 87cc/rev, as well as a variety of installation configuration options, which can meet the needs of different application scenarios. When selecting a model, comprehensive consideration should be given to factors such as system pressure, flow requirements, installation space and connection method.
