JB/T 6664.1-1993 Self-priming pump types and basic parameters JB/T6664.1-1993 standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T6664.1-1993
Self-priming pump
Published on June 4, 1993
Type and basic parameters
Implemented on January 1, 1994
Ministry of Machinery Industry of the People's Republic of China
Mechanical Industry Standard of the People's Republic of China
Self-priming pump
Subject content and scope of application
Type and basic parameters
This standard specifies the terms, types, models and basic parameters of self-priming pumps. JB/T 6664.11993
This standard applies to self-priming pumps (hereinafter referred to as pumps) with a flow rate of 2~200m/h, a head of 8~100m, and a matching power of 0.25kW and above.
Cited Standards
GB3216
GB6956
JB/T 6664.2
3Terms
Terms of Centrifugal Pumps, Mixed Flow Pumps, Axial Flow Pumps and Vortex Pumps Sprinkler Machinery
Technical Conditions for Self-priming Pumps
General terms for self-priming pumps shall comply with the provisions of GB6956. 3.1 Self-priming Height
The geometric height from the static liquid surface to the center line of the pump inlet, in meters. 3.2 Specified Self-priming Height
Test Method
Under specified test conditions, the pump does not produce cavitation when operating at the specified operating point, ensuring the self-priming height achieved, in meters. 3.3
Self-priming Time
Under specified test conditions, the time required for the pump to continuously operate from the start to the pump outlet to continuously output liquid, in seconds. 3.4 Specified self-priming time
The self-priming time measured at the specified self-priming height, in seconds. 4 Typesbzxz.net
According to the type of power machine supporting the pump, it can be divided into:
Self-priming pump supporting electric motor;
Self-priming pump supporting diesel engine.
According to the structure of the pump to achieve the self-priming function, it can be divided into: internal mixing type;
External mixing type;
Water ring wheel type;
Other types.
4.3 Transmission and steering
The transmission mode can be divided into:
Direct drive (including coaxial);
Belt drive.
Approved by the Ministry of Machinery Industry on June 4, 1993
Implemented on January 1, 1994
Direction of rotation
JB/T 6664.11993
The impeller of a self-priming pump with direct drive rotates counterclockwise from the impeller inlet direction; the impeller of a self-priming pump with belt drive rotates clockwise from the impeller inlet direction. 5 Model
5.1 Model indication method
The pump model consists of uppercase Latin letters and Arabic numerals, and its meaning is as follows: ZB
Matching power machine type: C indicates diesel engine (can be omitted); D indicates the rated (standard) power of the matching power machine of the electric motor (keep one decimal place when matching diesel engine), kW Specified head, m
Self-priming pump
Nominal diameter of pump inlet, mm
5.2 Marking example
The nominal diameter of the pump inlet is 50mm, the specified head is 25m, and the matching power machine is a self-priming pump with a rated power of 2.94kW diesel engine. Its mark is:
50ZB25-2.9C
6 Basic parameters
6.1 Under the conditions specified in JB/T6664.2, the basic parameters of the pump when conveying normal temperature clean water: the self-priming pump matched with the diesel engine shall comply with the provisions of Table 1; the self-priming pump matched with the motor shall comply with the provisions of Table 2. 6.2 When the basic parameters such as the flow rate, head or speed of the pump do not comply with the provisions of Table 1 and Table 2, other parameters shall comply with the following provisions. 6.2.1 The specified efficiency of the pump shall not be lower than the calculated value obtained based on Figure 1 (or Table 3) and Figure 2 (or Table 4). The specified critical NPSH value of the pump shall not be greater than the specified value of the pump with the same (or similar) head and specific speed in Table 1 and Table 2. 6.2.2
6.2.3 The power reserve coefficient of the power machine supporting the pump should be between 1.1 and 1.4, and the upper limit value should be taken for the motor. 6.2.4
The specified self-priming height of the pump should not be less than the specified value of the pump with the same (or similar) head and flow specified in Table 1 and Table 2; the specified self-priming time should not be greater than the specified value of the pump with the same (or similar) head and flow specified in Table 1 and Table 2. 6.2.5
Other technical requirements of the pump should comply with the provisions of JB/T6664.2. The deviation of the basic parameters of the pump should comply with the provisions of Class C in GB3216, but the critical cavitation margin shall not have a lower deviation. 6.3
50ZB302.2C
50ZB25-2.4C
50ZB352.9C
50ZB454.4C
50ZB404.4C
Critical steam
Position margin
Specified by
Suction height
Specified by
Suction time
Specific speed
50ZB20-2.2C
50ZB25-2.9C
50 ZB353.7C | .4C
65ZB35-5.9C
65ZB558.8C
65ZB60-11C
80ZB102.2C
80ZB15-2.9C
80ZB30-5.9C
80ZB408.8C
80ZB50-11C
80ZB12-2.9C
80ZB153.7C
80ZB20-4.4C
80ZB25-5.9C
80ZB358.8C
80ZB40-11C
90ZB20-5.9C
9 0ZB308.8C | 5ZB2511C
125ZB208.8C
125ZB158.8C
150ZB1511C
JB/T 6664.11993
Continued Table 1
Critical steam
Positive displacement margin
Specified self
Suction height
Specified first
Suction time
Specific speed
25ZB150.37D
25ZB10-0.25D
32ZB180.55D
32ZB12.5-0.37D
32ZB2 00.75D | D
65ZB8-1.1D
65ZB18-2.2D
65Z B253D | |tt | tt||65ZB55-11D
80ZB12.5-2.2D
80Z B25-5.5D | | tt | |tt||80ZB55-15D
80ZB6518.5D
JB/T 6664.11993
Critical steam
Positive displacement margin
Specified self
Suction height
Specified self
Suction time
Specific speed
80ZB80-22D
80ZB20-5.5D
90ZB35-11D
90ZB257.5D
90ZB65-22D
100ZB155.5D
100ZB30-11D
100ZB40-15 D
100ZB257.5D
125ZB65-30D
125ZB9545D
125ZB12.5-5.5D
125ZB2511D
125ZB3215D
125ZB50-22D| tt||125ZB157.5D
150ZB15-11D
150ZB2515D
150ZB107.5D
200ZB2 018.5D
JB/T6664.1-1993
Continued Table 2
5678910
Critical steam
Positive erosion margin
304950
Figure 1n,=130~160Specified efficiency curve of self-priming pumpSpecified self
Suction height
Specified self
Suction time
Specific speed
Flow rate Qm/h
Efficiency%
JB/T6664.1-1993
n,=130 ～160 Self-priming pump specified efficiency value table 3
708090100110120130
160170180190200210220230240250260270280 Figure 2n,=30～130, n,=160～280 Self-priming pump specified efficiency correction curve table 4
n,=30～130, n,=160～280 Self-priming pump specified efficiency correction value 30
Additional instructions:
This standard is proposed and managed by the China Agricultural Mechanization Science Research Institute of the Ministry of Machinery Industry. 44
This standard is drafted by the Drainage and Irrigation Machinery Research Institute of Jiangsu Institute of Technology and the China Agricultural Mechanization Science Research Institute. Hunan Agricultural Machinery Research Institute participated in the drafting.
The main drafters of this standard are Zhu Wenbin, Han Wenjun, Li Zhipeng and Bian Qiuli. 6
People's Republic of China
Mechanical Industry Standard
Types and Basic Parameters of Self-priming Pumps
JB/T 6664.11993
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Words 12,000
1/16 Printing Sheet 5/8
Format 880×1230
First Edition in December 1993
First Printing in December 1993
Print Quantity 1-500
Price 5.00 Yuan
Mechanical Industry Standard Service Network: http://www.JB.ac.cn661_1t999 /
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