JB/T 7876.1-1999 This standard is a revision of JB/T 7876.1-95 "Types and basic parameters of manual pumps". This standard is part of the JB/T 7876 "Manual pump" series of standards. This series of standards includes the following three parts: JB/T 7876.1-1999 Types and basic parameters of manual pumps JB/T 7876.2-1999 Technical conditions for manual pumps JB/T 7876.3-1999 Test methods for manual pumps This standard specifies the definition, type, model and basic parameters of manual pumps. This standard is applicable to piston pumps, diaphragm pumps and screw pumps driven by human power for pumping clean water at normal temperature. Other types of manual pumps can also be implemented as a reference. This standard was first issued in 1987 as GB 8092.1-87 and was adjusted to JB/T 7876.1-95 on April 14, 1996. JB/T 7876.1-1999 Manual pump types and basic parameters JB/T7876.1-1999 standard download decompression password: www.bzxz.net

ICS65.060.35
Machinery Industry Standard of the People's Republic of China
JB/T7876.1-1999
Hand Pump
Types and Basic Parameters
Types and basic parameters for hand pump1999-08-06 Issued
National Bureau of Machinery Industry
2000-01-01 Implementation
JB/T7876.1-1999
This standard is a revision of JB/T7876.1-95 "Hand Pump", except for the modification of the performance. Foreword
Types and Basic Parameters". During the revision, in addition to editing the original standard, this standard replaces JB/T7876.1-95 from the date of implementation. This standard is proposed and managed by the National Agricultural Machinery Standardization Technical Committee. The responsible drafting unit of this standard is China Agricultural Mechanization Science Research Institute. The main drafter of this standard is Wu Tonglin.
1 Scope
Machinery Industry Standard of the People's Republic of China
Hand Pump
Types and Basic Parameters
Types and Basic Parameters for Hand Pump This standard specifies the definition, type, model and basic parameters of hand pumps. JB/T 7876.11999
Replaces JB/T7876.1-95
This standard is applicable to piston pumps, diaphragm pumps and screw pumps (collectively referred to as hand pumps, hereinafter referred to as pumps) driven by human power for pumping clean water at normal temperature. Other types of human power pumps can also be implemented as a reference. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest version of the following standards. JB/T7876.2—1999 Technical conditions for manual pumps 3 Definitions
This standard adopts the following definitions.
3.1 Piston pump
A pump that pumps liquids by reciprocating motion of the piston. 3.2 Diaphragm pump
A pump that pumps liquids by reciprocating motion of the diaphragm. 3.3 Screw pump
A pump that pumps liquids by rotating the screw rotor in the spiral stator. 3.4 Single-acting pump
A pump that has only one suction process and one discharge process in one reciprocating motion. 3.5 Double-acting pump
A pump that has two suction processes and two discharge processes in one reciprocating motion. 3.6 Shallow well pump
A pump that works by suction stroke with the working part (piston or diaphragm) above the ground. 3.7 Deep well pump
A pump that works by lift with the working part (piston or screw) generally below the dynamic water level. 3.8 Piston (diaphragm or screw) diameter
The maximum diameter of the part of the piston (diaphragm or screw) that contacts the liquid when it moves. 3.9 Displacement
The volume (or mass) of liquid discharged when the piston (diaphragm) reciprocates once or the screw rotates one circleApproved by the State Bureau of Machinery Industry on August 6, 1999, and implemented on January 1, 2000
3.10 Reciprocating times (or revolutions)
JB/T7876.1-1999
The number of reciprocating movements of the piston (diaphragm) per minute or the number of revolutions of the screw per minute. 3.11 Suitable suction stroke
The actual installation height to ensure the normal operation of the pump. 4 Types and models
4.1 Type
Hand pumps can be divided into the following types according to their working principle and structure: Single cylinder
Piston pump
Shallow well pump
Diaphragm pump
Hand pump
Deep well pump
4.2 Model
4.2.1 Model indication method
Piston pump
Screw pump
The model of a hand pump consists of four parts, whose meanings are as follows: Double cylinder
Single acting
Double acting
Piston (diaphragm or screw) diameter (add 0 in front of shallow well pumps less than 100), mm Shallow and piston pump Number of cylinders or diaphragms Pump action mode (1-single cylinder or single-acting type, 2-double cylinder or double-acting type), deep well pump has no such code Manual pump
Characteristic code: S-piston pump, M diaphragm pump, L screw pump 4.2.2 Marking example
Single-cylinder shallow well piston pump with a piston diameter of 80mm, its mark is: SB1080 Deep well piston pump with a piston diameter of 80mm, its mark is: SB80 Single-acting diaphragm pump with a diaphragm diameter of 250mm, its mark is: MB12505 Basic parameters
Under the working conditions specified in JB/T7876.2, the basic parameters of manual piston pumps, diaphragm pumps and screw pumps shall comply with the provisions of Table 1, Table 2 and Table 3 respectively. The lower deviation of pump flow and efficiency shall not exceed 2% of the specified value, and the deviation of suitable suction head (or total head) shall not exceed ±2% of the specified value.
SB1060
SB1080
SB1100
SB1120
SB1150
SB2100
SB2120
SB2150
MB1150
MB1200
MB1250| |tt||MB1300
MB1350
MB2150
MB2200
MB2250
MB2300
Piston diameter
Diaphragm diameter
Piston or screw
Rod diameter d
Piston stroke
Diaphragm stroke
Piston stroke
JB/T7876.1-1999
Theoretical displacementbzxZ.net
Theoretical Displacement
Basic parameters of shallow well piston pump
Theoretical flow
Number of reciprocating strokes
Basic parameters of diaphragm pump
Theoretical flow
Number of reciprocating strokes
Suitable suction stroke
Suitable suction stroke
Table 3 Basic parameters of deep well piston pump and screw pump Theoretical displacement
Theoretical flow
Number of reciprocating strokes or
Number of revolutions n
min -or r/min
Total head
Total head
Volumetric efficiency
Volumetric efficiency
Volumetric efficiency
Total efficiency
Total efficiency
Total efficiency
6 Dimensions
JB/T7876.1-1999
The relevant dimensions of piston pumps and diaphragm pumps shall comply with the provisions of Table 4 and Figures 1, 2 and 3. Table 4
Piston pump
Diaphragm pump
Inlet or outlet pipe diameter
Handle displacement
600~700
600~700
Note: The maximum outer diameter of the lower part refers only to deep piston pumps. Height of the lowest point of the handle from the ground
Handle length
600~700
1200~1400
Maximum outer diameter of the lower part
1—handle: 2—bracket: 3 pump body; 4—water outlet joint: 5 piston; 6—water inlet valve: 7—water inlet joint Figure 1 Schematic diagram of shallow well piston pump
JB/T7876.1-1999
1—handle; 2—Pump cover; 3 Diaphragm; 4—Water outlet joint; 5—Pump body; 6—Water inlet joint; 7—Pump frame Figure 2 Schematic diagram of diaphragm pump
JB/T7876.1-1999
1 Handle: 2 Pump head: 3 Pull rod: 4 Drain pipe: 5 Piston: 6 Pump cylinder Figure 3 Schematic diagram of deep well piston pump
JB/T7876.1-1999
The relevant dimensions of the screw pump shall comply with the requirements of Table 5 and Figure 4. Table 5
Screw pump
Diameter of drain pipe
Radius of handle
Height of the lowest point of handle from the ground
Diameter of handle grip
1 Gear box; 2 Handle; 3 Water outlet joint; 4 Pump seat; 5 Drive shaft; 6 Flexible shaft; 7—Stator; 8 Rotor; 9—Bottom valve Assembly diagram 4 Screw pump schematic
Maximum outer diameter of the lower part
People's Republic of China
Mechanical industry standard
Types and basic parameters of manual pumps
JB/T 7876.11999
Published by the Mechanical Science Research Institute
Printed by the Mechanical Science Research Institute
(No. 2 Shouti South Road, Beijing
Postal Code: 100044)
Format: 880×1230
1/16 Printing Sheet: 3/4
Number of Words: 16,000
First edition in April 2000
First printing in April 2000
Print run 1-500
Price 10.00 yuan
No. 99-1434
Mechanical Industry Standard Service Network: http://wwwJB.ac.cnJ
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