JB/T 5415-2000 This standard is a compilation of JB/T 3788-84 "Basic Parameters of Micro Centrifugal Pumps", JB/T 5415-91 "Technical Conditions of Micro Centrifugal Pumps" and JB/T 5415.2-1999 "Appearance of Micro Centrifugal Pumps" and installation dimensions". This standard specifies the type and basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of micro centrifugal pumps. This standard applies to axial suction horizontal micro centrifugal pumps coaxial with the motor. The motor power of the pump is no more than 1500W, the maximum working pressure is 0.6MPa, and the maximum working temperature is 60 degrees Celsius. It can transport industrial and agricultural water, drinking water or media with similar physical and chemical properties. JB 3788-84 was first released in 1988; JB/T 5415-91 was first released on July 22, 1991; JB/T 5415.2-1999 was first released on June 10, 1988 as ZB J71 008-88, in 1999 In April this year, the standard number was adjusted to JB/T5415.2-1999. JB/T 5415-2000 Micro centrifugal pump JB/T5415-2000 standard download and decompression password: www.bzxz.net

ICS23.080
J71
JB
Mechanical Industry Standard of the People's Republic of China
JB/T5415--2000
Micro centrifugal pump
Miniaturecentrifugalpumps
Released on 2000-03-30
National Machinery Industry Bureau
Released
Implemented on 2000-10-01
JB/T5415-2000|| tt | Pump Appearance and Installation Dimensions" and merged it into one standard.
Compared with JB3788-84, JB/T5415-91, and JB/T5415.2-1999, the main technical content of this standard has been changed as follows: the name of the standard has been modified;
The scope of application of the standard has been modified ;
- Added two specifications "25-25-140" and "65-65-71"; added safety requirements;
Removed the mechanical seal cavity size and lengthened shaft motor Shaft extension size, pump shape and installation dimensions and other regulations. This standard replaces JB3788-84, JB/T5415--91, and JB/T5415.2-1999 from the date of implementation. Appendix A of this standard is the inclusion of the standard.
This standard is proposed and centralized by the National Pump Standardization Technical Committee. The bearing and stamping organizations of this standard are: Hefei General Machinery Research Institute, Haicheng Sanyu Ticket Co., Ltd. The main drafters of this standard: Kong Fanyu, Qin Yuhua, Chen Yongbo. 1 Scope
Machinery Industry Standard of the People's Republic of China
Miniature centrifugal pumps
Miniaturecentrifugalpumps
JB/T54152000
replaces JB3788-84
JB /T5145——91
JB/T 5415.2-199
This standard specifies the type and basic parameters of micro centrifugal pumps, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage .
This standard applies to axial suction horizontal micro centrifugal pumps (hereinafter referred to as pumps) with coaxial motors. The power of the pump supporting motor is not more than 1500W, the maximum operating pressure is 0.6MPa, and the maximum operating temperature is 60 ℃, transporting agricultural water, drinking water or media with similar physical and chemical properties.
2 Reference standards
The provisions contained in the following standards constitute provisions of this standard by being quoted in this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties using this standard should explore the possibility of using the latest version of the standard listed below. GB 1911990
GB/T 1415—1992
GB/T 2555-1981
GB/T3216—1989
GB/T 51711991
GB/ T 13306—1991
GB/T13384—1992
JB/T 4127.11999
JB/T 4376—1986
JB/T4297—1992
JB /T 6879-1993
JB/T6880.1—1993
JB/T8097—1999
JB/T 8098—1999
JB/T8687—1998|| tt||3 Types and Basic Parameters
3.1 Pump Type
Packaging, Storage and Transportation Illustrations
Metric Taper Thread
General Purpose Pipe Flange Connection Dimensions|| tt||Test methods for centrifugal discs, mixed flow pumps, axial flow pumps and vortex pumps General technical conditions for small power motors
Label
General technical conditions for mechanical and electrical product packaging
Technical conditions for mechanical seals| |tt||Technical conditions for small-power asynchronous motors for water pumps General technical conditions for painting pump products
Dimensional tolerances of the flow-passing parts of centrifugal ticket castings
Gray iron castings for pumps
Vibration of pumps Measurement and evaluation methods
Measurement and evaluation methods of pump noise
Sampling inspection of pump products
The types of pumps are shown in Figure 1 and Figure 2.
3.1.1 The suction and discharge ports of the pump can be flange type, complying with the regulations of GB/T2555 (Figure 1): it can also be implosion pattern connection type approved by the National Machinery Industry Bureau 2000-03-30 2000-10-01 Implementation of
-
JB/T 5415-2000
formula, in line with the provisions of GB/T1415 (Figure 2); other connection methods can also be used, such as soft Pipe connections, etc. Figure 1
Figure 2
3.1.2 The pump can be a single-stage impeller or a multi-stage impeller. The number of multi-stage impeller stages should not exceed 3 stages. 3.1.3 The rotation direction of the pump is clockwise when viewed from the driving end. 3.1.4 Except for special needs, the pump does not have an additional base. 3.2 Basic parameters
3.2.1 The basic parameters (performance specification points) of the single-stage impeller pump should comply with the provisions of Table 1. The performance range of the pump is shown in Figure 3. Table 1
Dimensional mark
Suction door diameter
mE
25
32
Discharge port diameter
m
25
32
impeller nominal diameter
mm
71
85
100
118
140
71
85
100
118
140
speed n
r/ min
2900
stream
most
0
m'h
1.25
2.5
Cheng H
Yang
m
4.0
6.3
10.0
16.0
25.0
4.0
6.3
10.0
16.0
25.0
What is the diameter of suction
mm
40||tt| |50
65
25-25-140
16
foot mark
discharge port diameter
mm
40
50
65
JB/T5415-2000
Table丨(End)
Speed ??n
Nominal true diameter of impeller| |tt||mm
71
85
100
118
71
85
100||tt ||118
71
85
100
32-32140
25-25118
2525100
6.3| |tt||2525-85
2525-71
6.70.8 0.9 1.0
1.23
1.5
32-32-118||tt ||3232100
3232-85
323271
2.5
40-40118
40-40-100
40-40- 85
4040-71
r/min
2900
5050-118
5050-100
50-5085||tt ||5050-71
10
most 0
stream
m/h
5.0
10.0
20 .0
--65-65-100
65-65-85
656571
16
Figure 3
Micro centrifugal pump Performance range (n=2900r/min) 20
Cheng H
Yang
m
4.0
6.3
10.0||tt ||16.3
4.0
6.3
10.0
16.0
6.3
10.0
g
0ma
JB/r5415-2000
3.2.2 The efficiency of the specified point of pump performance should meet the following requirements a) When the specific rotation number n-120~210, the value n of the efficiency of the specified point of pump performance is not Lower than specified in Table 2; Table 2
o
m/hbZxz.net
%
1.25
42
2.5||tt| |52
n
60
b) When n,<120, use the specified value 4> in Table 3 to modify Table 2, that is, the specified point efficiency Table 3||tt| |n,
%
23
23
33
17
47
c) Non-performance specification points The efficiency is determined according to Appendix A (Standard Appendix) using the above method. 3.2.3 Critical NPSH
The critical NPSH (NPSH) at the specified point of pump performance should not be greater than the requirements in Table 4. Table 4
g
m/h
(NPSH).
≤4
2.0
>4~15
2.5
10
64
66||tt| |6
20
66
93
2
>15~30
3.0
3.2.4 in If the supporting power permits, the pump head can be increased by increasing the number of impeller stages. The efficiency index of multi-stage pumps (stages 2~3) can be reduced by 2% from the corresponding specified value in 3.2.2. 4 Technical requirements
4.1
General requirements
The pump shall comply with the provisions of this standard and be manufactured in accordance with the product drawings and technical documents or agreements approved by the prescribed procedures. 4.2 Performance of the pump
4.2.1 The prescribed point flow rate and head deviation of the pump shall comply with the Class C regulations of GB/T3216-1989. 4.2.2 The pump manufacturer should determine the working range of the product and draw the performance curve of the pump (the relationship curve between head, efficiency, NPSH and flow rate).
4.3 Motor
4.3.1
The performance of the pump motor should comply with the corresponding requirements of GB/T5171, JB/T4376 and other standards. 4.3.2 The motor capacity is selected according to Figure 4.
4
of
130
20,
100
JB/T5415—2000
200||tt ||500
Figure 4
1000
2000
deep orbit power
4.3.3 The pump operates at 0.8 times the rated voltage and 1.3 times the specified flow rate It should be normal to start three consecutive times during working conditions. 4.4 Pump structural design
4.4.1 The shaft seal of the pump is preferably a mechanical seal, and its performance should comply with the regulations of JB/T4127.1. , 4.4.2 If necessary, the ticket body should be equipped with a drain hole. 4.4.3 When the axial force of the rotor is large, a rear sealing ring and a balance hole can be provided, or a back blade can be provided to balance the axial force. 4.4.4 When setting the sealing ring, the sealing ring should be reliably fixed on the pump body, and the minimum diameter gap between the sealing ring and the impeller is 0.25mm. When there is no sealing ring, this gap is the minimum gap between the pump body and the impeller. 4.4.5 When the shaft rotates, the direction of rotation of the shaft head should keep the nut in a tight state. 4.4.6 A liquid retaining ring should be installed at the shaft extension of the motor to prevent shaft seal leakage liquid from entering the motor. 4.5 Vibration and Noise
The vibration intensity of the pump unit should not exceed the Class C regulations of JB/T8097-1999, and the noise should not exceed the Class C regulations of JB/T8098-1999. The vibration and noise of the pump generally do not need to be detected, but will be detected if necessary. 4.6 Static balance
The impeller should undergo a static balance test. The unbalanced mass on the maximum outer diameter of the impeller shall not exceed 3. 4.7 Hydraulic pressure test
The parts and components of the pump that are subject to liquid pressure should be subjected to a hydrostatic test, or the entire machine should be subjected to a hydrostatic test. During the test process under the specified test conditions, the components and parts that are subject to liquid pressure should be and its joints should be free of leakage and stomach sweat. 4.8 Pump materials
4.8.1 The chemical composition and mechanical properties of the materials of the main parts of the pump should comply with the relevant material standards. 4.8.2 series castings should comply with the requirements of JB/T6880.1. 4.9 Manufacturing, assembly and surface treatment
4.9, 1 Pump castings should have no defects that affect processing and use. The casting size deviation of the flow-passing parts of the pump should comply with the regulations of JB/T6879. 4.9.2 All parts of the pump must pass inspection before assembly. 4.9.3 Before assembly, iron filings, sand accumulation and lumps in the impeller and pump body flow channels must be removed. Non-processed surfaces in contact with the wave body should be coated with anti-rust primer, and processed surfaces in contact with liquids should be coated with anti-rust grease. 4.9.4 The outer surface of the pump should be free of rust and oil stains, and the non-added surface should be coated with primer and topcoat. Painting should comply with the regulations of JB/T4297. The paint coating should be uniform and should not have defects such as sharp marks, blistering, peeling, wrinkling, sagging, and siltation. 4.9.5 After the assembled pump, the rotor rotation should be smooth and flexible, without sticking or abnormal friction. All fasteners must not be loose. 4.9.6 After the pump passes the test, the accumulated water in the system should be removed and anti-rust treatment should be carried out. 4.10 Safety requirements
JB/T5415—2000
4.10.1 The motor supporting the pump should comply with the safety regulations of the corresponding product standards. When the pump and matching motor form a unit, necessary safety protection devices and safety signs should be installed on the exposed rotating parts. 4.10.2 The insulation resistance of the motor winding should not be less than 20MQ under normal conditions. 4.10.3 Withstand voltage test
The motor is subjected to a voltage withstand test under specified conditions. The windings should have no flashover or breakdown. 4.10.4 The motor must be equipped with a grounding terminal. If there is a junction box, it should be placed inside the junction box and must not be removed during use. The grounding wire end should be marked with an obvious grounding symbol and must not be easy to fall off. 5 Test methods
The chemical composition analysis method and mechanical property test method of the material should comply with the provisions of the relevant standards, 5.1
5.2 The flow, lift, efficiency, power and NPSH of the pump The measurement is carried out in accordance with the provisions of GB/T3216. 5.3 The insulation resistance, withstand voltage test and grounding device of the motor shall be carried out in accordance with the provisions of GB/T5171. 5.4 Hydraulic pressure test
5.4.1 The hydraulic pressure test pressure for Chengle's parts and components is 1.5 times the working pressure, and the pressure holding period is not less than 3 minutes. Observe whether there is any leakage during the test.
5.4.2 Carry out a hydraulic pressure test on the entire machine. The test pressure is 1.3 times the working pressure. The test pressure lasts for no less than 3 minutes. Observe the parts, components and connections that bear the water pressure during the test. Is there any leakage everywhere? 5.5 The static balance test is carried out on the balancing device. 5.6 The quality of assembly and surface treatment shall be inspected by visual inspection and hand feel. 6 Inspection Rules
Product inspection is divided into factory inspection and type inspection. 6.1 Factory inspection
6.1.1 Mass-produced pumps must pass the factory inspection and be accompanied by product certificates and instructions for use before leaving the factory. 6.1.2 The inspection items are specified in Table 5.
Table 5
Test items
Hydraulic test
Operation test
Low voltage starting test
Factory test
Performance Test
Safety inspection
Alarm test
Noise test
Type test
v
V
x| |tt||v
o
o
Note: V means must be done; O means when necessary: ??* means not done, 6
Inspection Category|| tt||Factory inspection
V
V
x
V
x
V
+||tt ||JB/T54152000
6.1.3. The number of factory inspection units and sampling rules are in accordance with JB/T8687. The sampling plan can adopt primary sampling or secondary sampling. The general inspection level is II and the qualified quality level AQL is 4.0. 6.2 Type test | During finalization and appraisal;
b) After formal production, such as when there are major changes in structure, materials, and processes; c) For mass-produced products, periodic inspections must be conducted at least once a year; d) After the product has been discontinued for a long time, When production is resumed: e) When the Ideko inspection results are significantly different from the last type test. 6.2.2 Inspection items are specified in Table 5.
6.2.3 The number of type tests shall be no less than 2 units each time. , 6.3 Final inspection
Each pump should be inspected by the relevant quality inspection department of the manufacturer according to the pump supply, complete set of accessories, packing information, etc. After passing the inspection, a product certificate will be issued before leaving the factory.
7 Complete sets of accessories and usage guarantee
7.1 According to user needs, complete sets of accessories such as bottom valves and pipe joints can be provided. 7.2 Under the condition that the user abides by the provisions in the product manual, within 18 months from the date of shipment from the manufacturer, the continuous operation does not exceed 12 months. If the pump is damaged or cannot work properly due to poor manufacturing quality, the manufacturer The factory shall replace or repair the product free of charge for the user, excluding normal wear and tear of wearing parts.
8 Logo, packaging, transportation and storage
8.1 Logo
8.1.1 Signage
Each pump should have a product sign firmly set in an obvious location, and its size and technical requirements should comply with the provisions of GB/T13306. The content of the sign should include:
a) Manufacturer's name and trademark:
b) Product name and model:
c) Main parameters specified: flow (m/h), head (m), rotation speed (r/min), supporting power (W), required NPSH (m), efficiency or unit efficiency (%)
d) mass of pump unit (kg); ||tt ||e) Factory date and factory number.
8.1.2 Direction of rotation
When the pump is equipped with a three-phase motor, the direction of rotation of the pump shaft should be marked with a red arrow in an obvious position. 8.2 Packaging and transportation
The packaging of case 8.2.1 shall be in accordance with the provisions of GB/T13384. Special packaging may be determined by negotiation between the supplier and the buyer. 8.2.2 Each machine ticket should have the following accessories and documents when leaving the factory, and the documents should be sealed in a waterproof bag: a) Certificate and instruction manual;
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.