Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T 6909-93
Ultra-High Pressure Pump
Published on July 13, 1993
Ministry of Machinery Industry of the People's Republic of China
Implementation on July 1, 1994
Mechanical Industry Standard of the People's Republic of China
Ultra-High Pressure Pump
1 Subject Content and Scope of Application
JB/T6909-93
This standard specifies the type, basic parameters, technical requirements, test methods, marking, packaging and storage of ultra-high pressure pumps. This standard applies to motor-driven, pneumatic, manual ultra-high pressure pumps and hydraulic ultra-high pressure boosters (hereinafter referred to as pumps): the rated discharge pressure is 1001000MPa, and the conveying medium is non-toxic, non-corrosive, non-explosive, and non-crystallizing. The normal temperature liquid pump is suitable for the occasions where the working environment temperature is normal temperature, the relative humidity is not more than 85%, and there is no corrosive gas. Reference standards
GB1029
GB1032
GB1220
GB1311
GB1979
GB2975
GB3077
GB6388
GB6394
GB7784
GB9439
GB10561
GB/T13306
GB/T13384
JB2121
Steel pressure vessel||tt| |Packaging, storage and transportation pictorial symbols
Sampling method for chemical analysis of steel and allowable deviation of chemical composition of finished productsChemical analysis methods for steel and alloys
Acid etching test method for macrostructure and defects of steelMetal tensile test method
Metal Charpy (U-notch) impact test methodMetal Rockwell hardness test method
Metal Brinell hardness test method
Technical conditions for high-quality carbon structural steel
Carbon structural steel
Mechanical properties test method for gray cast iron
Test method for three-phase asynchronous motor
Test method for three-phase asynchronous motor
Stainless steel bar
Test method for DC motor
Structural steel macrostructure defect rating chart||t t||Steel mechanical and process properties test sampling regulations Technical conditions for alloy structural steel
Explosion-proof electrical equipment for explosive atmospheres
Transport packaging delivery and receipt marks
Method for determining average grain size of metal
Test method for motor-driven reciprocating pumps
Gray iron castings
General requirements
Microscopic evaluation method for non-metallic inclusions in steel Label
General technical conditions for packaging of electromechanical products
Technical conditions for copper alloy castings
Approved by the Ministry of Machinery Industry on July 13, 1993
Implementation on July 1, 1994
3 Type
3.1 Type
The driving type of the pump shall be in accordance with the provisions of Table 1.
3.2 Model compilation
The model compilation method for diesel engine driven
pumps is as follows:
3.3 Model example
CB200-5.5 type
JB/T6909-93
Does not indicate
the power of the motor (or diesel engine), kW (manual pumps do not have this item)
pressure. MPa
Ultra-high pressure pump
Drive type (electric is not indicated)
Indicates ultra-high pressure pump driven by electric motor, with a pressure of 200MPa and a motor power of 5.5kW: b.
YCB320-45 type
Indicates ultra-high pressure pump driven by hydraulic pressure, with a pressure of 320MPa and a motor (or diesel engine) power of 45kW: SCB200 type
Indicates ultra-high pressure ticket with manual pressure of 200MPa. Basic parameters
The rated discharge pressure of the pump should be selected from Table 2. 4.1
The theoretical flow rate of the pump at normal pressure is taken as the flow rate of the pump. The unit is L/h. The plunger diameter of the pump should be selected from Table 3.
5 Technical requirements
JB/T6909-93
The pump shall comply with the requirements of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. Pumps with special requirements. According to the agreement, the pump shall be able to operate safely at the rated discharge pressure and rated pump speed. The pump shall meet the following conditions during operation:
The pump shall be started at normal pressure:
There is no leakage on the static sealing surface:
The lubricating oil pressure and oil level are within the specified range, the oil pool oil temperature does not exceed 75℃: The temperature of the bearing and transmission end moving pair does not exceed 75℃; there is no abnormal sound and vibration;
When the pump is running under rated conditions, the prime mover should not be overloaded, and the pump should have an overload protection device. During the operation of the pump, the assessment indicators are the allowable drop in working pressure and the volume coefficient under 100MPa discharge pressure, and the indicators should meet the requirements of Table 4.
Allowable drop in working pressure
320MPa
When the pump is running under rated working conditions, the noise should comply with the provisions of Table 5. Table 5
Rated input power
>22~75
400,500MPa
≥630MPa
Rated discharge pressure MPa
240~400
≥>500
The pump or pump system should be equipped with a safety valve or other overpressure protection device. When the safety valve or overpressure protection device is activated, the discharge pressure of the pump should comply with the provisions of 5.6
and Table 6.
Rated discharge pressure of pumpPar
Opening pressure of safety valve or discharge pressure of pump when overpressure protection device is actuated400
1.05~1.1Pdr
1.02~1.05Par
5.7The opening pressure of low-pressure relief valve driven by hydraulic pressure is 1.05~1.10 times of working pressure, and the opening pressure of low-pressure safety valve driven by compressed air is 1.0~1.1 times of working pressure. 5.8The cumulative operation time of main wearing parts of pump under load shall not be less than that specified in Table 7. The cumulative operation time of pump with pressure not more than 320MPa under rated working condition shall not be less than 50h. 3
Gui plug seal pair
Conveying medium
Non-oil
Non-oil
JB/T 6909-93
≤250
When the plunger seal pair and valve group of the pump are replaced, they should be replaced in pairs. 5.9
All pressure-bearing parts and components of the pump should be subjected to hydraulic test. 5.10.1 The pressure P of the hydraulic test is determined by the following formula: P,=μp
Where: P is the working pressure, MPa;
pressure coefficient of the hydraulic test.
Rated discharge pressure
>250~400
>400~630
250 (repair allowed)
400 (repair allowed)
The pressure coefficient of the hydraulic test is generally taken as μ=1.25, but for the cylinder body treated with self-strengthening, P should be controlled within the range of no re-yielding during the hydraulic test, so μ=1.1~1.25 is specified. When the test pressure exceeds 1000MPa, the hydraulic test can be carried out according to this standard. 5.10.2 The selection of the hydraulic test coefficient should be consistent with the safety factor. In the ultra-high pressure range, the low pressure coefficient is generally taken for the high pressure section, and the high pressure coefficient is taken for the low pressure section.
5.10.3 The low pressure cylinder body of the pneumatic transmission should be tested for air tightness at 1.15 times the design pressure value. There should be no leakage within 5 minutes. A hydraulic test should be carried out before the air tightness test, with a test pressure of 1.5P and a pressure maintenance of 30 minutes. 5.10.4 The hydraulic test shall be carried out at the design temperature. 5.10.5 The test medium shall be the working medium, and the fluid that will not cause brittle failure of the ultra-high pressure cylinder shall be used. 5.11
The assembly torque of ultra-high pressure bolts, nuts and other important threaded connections shall be specified. There shall be protective covers around couplings, transmission belts and other moving parts that may cause harm to the human body. When the pump is used in an explosive environment, the explosion-proof type, category, level and temperature group of its motor and electrical equipment shall comply with GB3836.1. bZxz.net
Material requirements
The materials of the parts shall be in accordance with the requirements of the drawings, but materials that can meet the design requirements after test and appraisal may be substituted. The materials of all parts that bear ultra-high pressure must have the mechanical properties specified in Table 8. Table 8
Ultimate strength
700~850
850~1000
1000~1200
800~900
900~1000
10001100
Yield limit
Elongation
Reduction of area
Test temperature
Impact test
Charpy impact absorption energy>
Average value
Minimum value
JB/T6909-93
When the minimum operating temperature of the pump is 20℃ lower than the pressure test temperature, the impact test is carried out at a lower temperature, and the average value and minimum value in Table 8 must be met at the same time. 5.14.3 The material should have a certificate of chemical composition and mechanical properties. In the absence of a certificate, chemical analysis and mechanical property inspection shall be carried out in accordance with the provisions of GB699, GB700, GB1220 and GB3077. 5.14.4 Chemical analysis and mechanical property inspection of materials shall be carried out in accordance with the provisions of GB222, GB223, GB228, GB229, GB230 and GB231.
5.14.5 Requirements for feeding
a. Ingots or profiles with a diameter of >80mm (need to be forged or directly machined) shall be subjected to low-power microstructure inspection in accordance with the provisions of GB226 and GB1979. The central porosity and general porosity shall not exceed 1.5 levels, the segregation shall not exceed 1.5 levels, there shall be no defects such as white spots, shrinkage cavities, bubbles, honeycombs, etc., the oxides and sulfides in non-metallic inclusions shall not exceed 1.5 levels each, and the total weight shall not exceed 2.5 levels. Non-metallic inclusions in forgings of important pressure-bearing parts shall be evaluated in accordance with the provisions of GB10561. b.
The materials leaving the warehouse should have a certificate of conformity.
If the material has been heat treated and the mechanical properties meet the requirements, it can be directly put into processing, but it must be specially stated on the material certificate of conformity.
The defects on the surface of the bad forgings should be removed or ground away. When forging with steel ingots, the loose parts at both ends must be cut off. 5.14.6
Forgings should not have overburning and severe decarburization, and the outer surface should not have defects such as cracks, folds, forging scratches, spots, slag inclusions, etc., and must be inspected according to the scrap judgment standards and inspection methods agreed between the forging orderer and the material manufacturer. For surfaces that require mechanical processing, if the above defects can be completely removed after processing, they are allowed to be used. 5.14.8 Defects of forgings should not be welded,
5.14.9 Forgings should have an appropriate forging ratio. If calculated by the main cross-sectional area, when forging with steel ingots, its forging ratio shall not be less than 3; when forging with profiles with a diameter of not less than 80mm, its forging ratio shall not be less than 2.5. 5.14.10 The grain size of the forgings after final heat treatment shall be checked in accordance with the provisions of GB6394 and shall not be less than Grade 5. The pipe shall be confirmed by microstructure test to confirm the absence of decarburization and abnormal structure. 5.14.11
5.14.12 Under the same furnace number and the same process conditions, the same batch of forgings or parts directly fed shall be subjected to mechanical property inspection in accordance with the following provisions;
a. Studs and nuts: 20% of the total number of parts in batches may be sampled for hardness test, but if one piece fails, 100% shall be inspected. 1% of the studs shall be sampled for mechanical property test, but not less than 2 pieces, and no less than 2 tensile specimens and 2 impact specimens shall be taken for each test. b. Ultra-high pressure cylinder: 1 forging shall be sampled for tensile and impact tests. The sampling position is more than 2/3 of the heat-treated thickness of the end. For the surface sampling position, the tensile test is at 1/4 of the heat-treated thickness of the solid material; the impact test is at 1/2 of the heat-treated thickness of the solid material. c. Other parts; the number of mechanical property test pieces is 10% of the total number of parts in the batch, but not less than 2 pieces, and 1 tensile test piece and 2 impact test pieces are taken from each test piece. For parts with a single weight exceeding 20kg and a batch not exceeding 10, the number of test pieces can be 1 piece, and 1 tensile test piece and 2 impact test pieces are taken from the test piece. 5.14.13 When one test piece is found to be unqualified during the test, the test should be repeated with double the number of test pieces. If one test piece is unqualified, the batch of parts should be reheat-treated, and the inspection method after reheat treatment is the same as before. The number of reheat treatments shall not exceed two times (excluding tempering times). If one test piece is still unqualified in the last test, all parts in the batch shall be scrapped. 5.14.14 The sampling method of mechanical property test pieces shall comply with the provisions of GB2975. 5.14.15 Pressure-bearing parts shall be subjected to non-destructive testing. The testing methods shall comply with the relevant standards and an inspection report shall be issued. 5.14.16 The technical requirements and test methods for pump castings shall comply with the provisions of GB9439 and GB977 respectively, and copper alloy castings shall comply with the provisions of JB2121.
5.15 Manufacturing technical requirements
5.15.1 Parts shall be free of defects that affect strength and damage appearance. 5.15.2 For the surface of parts with fatigue strength requirements, the surface roughness Rmax after processing shall be 3.2μm in both the circumferential and axial directions. 5.15.3
The sealing surface shall not have defects such as scratches and depressions. The self-strengthening treatment method for producing initial compressive residual stress in the inner layer of pressure-bearing parts is as follows: 5.15.41
JB/T6909-93
The pressure of self-strengthening treatment should be controlled to a level that does not produce re-strain after unloading, see Appendix A (reference); a.
The compressive residual stress after unloading should be calculated: b.
After self-strengthening treatment, no mechanical processing is performed. c.
The radius of the fillet is not less than the noted size. 5.15.6
If there are openings or screw holes on the cylinder body, the influence of stress concentration should be considered in the design. Parts subjected to ultra-high pressure cyclic pressure should not be welded. The fillets at the cross-section changes of high and low pressure cylinder bodies, crankshafts, connecting rods, plungers, and joints should have a smooth transition. The accuracy of high-pressure connection threads shall not be less than 6H/6h. 5.15.10
After the pump valve assembly is assembled and ground, a kerosene leakage test shall be conducted. No leakage shall be allowed within 5 minutes. The plunger and the sealing sleeve shall be ground evenly.
After the main parts are inspected and qualified, they shall be marked. Only qualified parts can be assembled. Purchased parts and outsourced parts shall be assembled only with certificates of conformity. Before assembly, the non-machined surfaces of parts in contact with lubricating oil shall be coated with oil-resistant anti-rust primer. All parts shall be deburred, cleaned one by one according to 5.15.14
, and then blown dry with compressed air.
The threaded connection assembly torque shall be assembled with a torque wrench. After assembly, the assembly quality shall be checked by turning the wheel. The plunger shall reciprocate for no less than 5 times and shall not be stuck. After the test, the following work shall be done:
The liquid in the pump shall be cleaned;
The exposed machined surface of the pump shall be treated with anti-rust treatment. The non-machined surface shall be coated with anti-rust primer and topcoat; the suction and discharge ports shall be sealed.
The surface paint layer of the pump should be smooth and flat, and the ultra-high pressure pipeline should be painted red. The pump supplied as a set should include:
One complete pump;
Safety or overpressure protection device, suction and discharge joints of the pump; One prime mover;
No less than one set of wearing parts and spare parts;
One set of special tools;
Accompanying documents.
If the quantity of the above supply scope is increased or decreased, it shall be in accordance with the provisions of the agreement. 5.15.20 If the user complies with the provisions of the product manual and uses it correctly, the manufacturer shall guarantee the pump for one year (excluding wearing parts) within 18 months from the third day of delivery. During the warranty period, if the product is damaged or cannot work normally due to improper design, manufacturing or materials, the manufacturer shall be responsible for free repair or replacement of parts. 6 Test method
6.1 Test device
6.1.1 The discharge pipeline of the pump shall be equipped with a pressure gauge, a pressure regulating valve, a safety valve or other overpressure protection devices and a pressure stabilizing device. 6.1.2 The pressure allowed to be borne by the discharge pipeline and the load container shall be compatible with the rated discharge pressure of the pump under test. 6.1.3 The joints of the suction pipeline shall not leak to prevent air from entering. 6.1.4 The pressure stabilizing device installed on the discharge pipeline shall ensure that the range of variation of the pressure gauge indication value meets the measurement requirements. 6.1.5 The valves, containers, connectors, fasteners, seals, pipelines, etc. used in the test device shall comply with the requirements of the relevant ultra-high pressure equipment standards, and shall be hydraulically tested in accordance with Article 5.10.
6.1.6 During the test, the pressure regulating valve shall be isolated from the pump and device under test, and the test personnel shall not face the axial pressure regulating valve. The isolation area of the pump and device shall not be close to people.
6.1.7 The test device should not use hot-bent pipes. 6
JB/T6909-93
The pressure regulator should use a needle valve, and the valve line and valve stem diameter should be minimized to reduce the axial load of the liquid on the valve stem. 6.1.8
6.1.9 When the performance of the safety valve is poor, other overpressure protection devices should be adopted. 6.2 The test should be carried out on the device that meets the requirements of Article 6.1 or on site. 6.3
The test should be carried out under rated conditions. Otherwise, the deviation of the parameter values under the test conditions from the rated values should comply with the provisions of Table 9. Table 9
Allowable drop in discharge pressure P.%
Allowable deviation of pump speed
≤320MPa
Allowable deviation of measured value
400, 500MPa
±5% of rated value
≥630MPa
6.4 The allowable fluctuation range of the instrument indication value measuring the pump pressure should be less than 10%. The allowable fluctuation range of the discharge pressure of the pump used in the process should meet the requirements of the process.
6.5 During the test, all instrument readings should be read and recorded synchronously after the pump reaches a stable operating condition. The number of measurements for each measured parameter shall be no less than 3 times for type inspection and sampling inspection, and no less than 1 time for factory test, and the arithmetic mean shall be taken as the measured value. 6.6 Test data and calculation results shall be recorded in the test record. The measurement error of measuring instruments and meters shall not be greater than the provisions of Table 10, and all measuring instruments and meters shall have the inspection certificate of the metrology department or relevant 6.7
department and be within the valid use period. Table 10
Measured quantity
Pump input power
6.8 Parameter measurement and measuring instrument accuracy
6.8.1 Pressure
Allowable error range %
6.8.1.1 The pressure is measured by a spring pressure gauge (seismic pressure gauge can also be used), and its accuracy level is 2.5. 6.8.1.2 There should be a straight pipe section between the pressure measuring hole and the pump discharge outlet. 6.8.1.3 To reduce the pulsation of pressure measurement, a damping device should be installed in front of the instrument. The swing of the instrument pointer should comply with the provisions of Article 6.4. The indicated value at 2/3 of the pointer swing range is taken as the measured value. 6.8.1.4 The range of the pressure gauge should be selected so that the indicated average value is 2/3 of the full scale. 6.8.2 Flow
6.8.2.1 The flow measurement adopts the volumetric method and the mass method. 6.8.2.2 When the volumetric method (i.e. measuring the time required to fill a certain volume) is used to measure the flow, the container should have a scale, the relative limit error of the container calibration should not exceed 0.5%, and the measured liquid level difference should be at least 200mm. When the volumetric method (i.e. measuring the mass of liquid within a certain time interval) is used to measure the flow, the sensitivity of the scale should be less than 0.5% of the measured value. It is generally used to measure liquids that can exclude gas. 6.8.2.3 When the mass method (i.e. measuring the mass of liquid within a certain time interval) is used to measure the flow, the sensitivity of the scale should be less than 0.5% of the measured value. Generally used to measure liquids that are difficult to remove gas from. 6.8.2.4 The flow measurement time interval shall be at least 20s. 6.8.2.5 The time measurement shall be carried out by a stopwatch, etc.
6.8.3 Pump speed
JB/T 690993
6.8.3.1 The pump speed shall be measured by a tachometer or other speed measuring instrument with a stopwatch, and the accuracy level of the measuring instrument shall not be less than 0.5%.
6.8.3.2 The pump speed may also be measured by the following method: Measure the cumulative number of reciprocating times within a certain time interval and then calculate the average value a.
Measure the speed of the prime mover and then convert it into pump speed. b.
6.8.3.3 When calculating the pump speed by measuring the cumulative number of reciprocating times or speed, the measurement time interval shall be the same as the flow measurement time interval and shall be carried out simultaneously.
6.8.4 Power
6.8.4.1 The output power of the prime mover is the input power (shaft power) of the pump. This value can be the product of the motor input power and the corresponding efficiency value on the motor full-operating efficiency curve. 6.8.4.2 The motor input power should be measured at the motor input terminal. Three-phase AC motors are measured using the two-wattmeter method or the three-wattmeter method. DC motors are measured using the voltage-current meter method. The meter accuracy is as specified in Table 11. During the test, the meter indication value should be above 1/3 of the full range. An exception can be made when using a two-watt three-phase power to be measured, but the indicated current and voltage values should not be less than 60% of the rated current and voltage values of the wattmeter. Table 11
Ammeter
Voltmeter
Wattmeter
Mutual inductor
The accuracy level shall not be lower than level
6.8.4.3The input power of the pump can also be obtained by measuring the speed and torque using a torque tachometer or a DC dynamometer. 6.8.4.4When calculating the output power of the motor, the relevant provisions of GB1311, GB1029 and GB1032 shall apply. 6.8.5Temperature
Temperature refers to the test ambient temperature, medium temperature and lubricating oil temperature. 6.8.5.1
6.8.5.2The measuring part of the thermometer or sensor shall be placed directly in the medium to be measured. 6.9Test run
6.9.1Test run is mainly to check the assembly quality and run the pump. 6.9.2Test run includes no-load and load-raising tests. The no-load test shall be conducted with the inlet and outlet valves fully open and liquid being transported, and the test shall be no less than 1 hour. a.
The load test shall be conducted at the rated pump speed, when the discharge pressure gradually rises from normal pressure to the rated discharge pressure. b.
The load test shall be conducted at every 50MPa pressure level in the full pressure range. 6.9.3 During the test run, the noise, vibration, lubrication, temperature rise, leakage and all protective devices of the pump shall be normal. 6.10 Performance test
6.10.1 The performance test shall determine the relationship between flow rate power and pressure difference, draw a curve and evaluate the volume coefficient of the pump at 100MPa pressure. 6.10.2 The performance test shall be conducted at the rated pump speed. The discharge pressure shall start from the minimum value (the discharge pressure required to overcome the resistance of the test system when the valve of the discharge pipeline is fully open). Then the pressure shall be increased by every 50MPa pressure level, but a 100MPa pressure point shall be added. For each discharge pressure level not exceeding 40MPa, the pump speed, flow, power and discharge pressure value shall be measured and recorded simultaneously. For each discharge pressure exceeding 400MPa, only the pump speed, power and discharge pressure value shall be recorded. 6.11 Safety valve or overpressure protection device test 6.11.1 The safety valve shall be tested and adjusted when the pump is running, and sealed after passing the test. 6.11.2 Gradually close the discharge pipeline valve and increase the discharge pressure. Under the opening pressure specified in Article 5.6, the safety valve shall act sensitively, and the test shall be performed no less than 3 times.
JB/T6909-93
6.11.3 The overpressure protection device shall act sensitively under the specified pressure, and the test shall be performed no less than 3 times. 6.12 Pressure holding test
For the pressure holding test of the pump, the pump shall be stopped at the rated discharge pressure. The drop value of the pressure gauge indication value within 5 minutes after the pressure is stabilized shall comply with the provisions of Table 12.
Rated discharge pressure PMPa
Permitted decrease in pressure gauge indication value%
Cumulative operation test
6.13.1 The cumulative operation test of the pump can be carried out in the test room or at the user's site. 6.13.2
≥630
During the cumulative operation test, the pump is frequently pressurized to the rated discharge pressure, and the cumulative number of pressure increases shall comply with the provisions of Table 13. Table 13
Rated discharge pressure
Cumulative number of pressure increases times
The cumulative operation time of the pump shall meet the requirements of Article 5.8 to verify the life of the main wearing parts. During the test, it is allowed to adjust the seal and repair the valve group, and the number of adjustments and repairs shall be recorded. If the performance of the pump is lower than the requirements of Article 5.4, the test shall be terminated. >400
During the test, if the plunger seal pair, valve group or high-pressure cylinder is damaged and needs to be replaced, the test that has been conducted is invalid. During the test, measure the pressure, flow, pump speed, power and lubricating oil temperature every 4 hours and record them. The cumulative running time refers to the sum of the test time of each pump. After the test, the pump should be disassembled and inspected, and the wear data of the main moving pair should be recorded and compared with the measured data before the test. Noise measurement
The noise measurement and calculation of the pump should comply with the relevant provisions of GB7784. Inspection rules
Each pump should be inspected and qualified by the quality inspection department, and can only be shipped with a product certificate. The pump should be tested only after the pressure-bearing parts material, manufacturing accuracy, equipment accuracy inspection and hydraulic test inspection are qualified. Various tests of the pump are carried out according to the items specified in Table 14. Table 14
Test items
Trial operation
Performance test
Safety valve or overpressure protection device test
Pressure holding test
Cumulative operation test
Noise measurement
Note: √ indicates that the test should be carried out, and X indicates that the test is not carried out. 7.4 Type inspection
7.4.1 The first prototype of a new product should be subjected to type inspection. Type
Spot check, factory delivery
JB/T690993
7.4.2. For new products in a series, only the basic prototype of the series shall be subject to type inspection. After passing the inspection, the prototype of the new product with a lower discharge pressure than the prototype may no longer be subject to type inspection.
7.4.3 Products transferred from other factories shall be subject to type inspection. 7.4.4 Products shall be subject to type inspection when there are major changes in design, process and materials. 7.5 The content of sampling inspection is the same as that of factory inspection. 7.6 Each pump shall be subject to factory inspection. During factory inspection, the various indicators of the pump shall comply with the provisions of Articles 5.2.5.3, 5.6 and 5.7. Data processing and drawing of performance curves
The data processing of various parameters and the drawing of performance curves shall comply with the provisions of Chapter 4 and Chapter 5 of GB7784. Test report
Type inspection report includes the following contents:
Data of test medium;
System diagram of test device;
Calibration record of test instruments and meters; Data on pump assembly and inspection of main parts before test; Data on pump disassembly inspection results and main friction pairs after test; Test records and pump performance curve;
Test conclusion.
9.2 Sampling inspection and factory inspection report includes the following contents:a.
Test record;
Pump performance curve;
Test conclusion,
9.3 Test record form is designed and filled in according to the test content. 9.41
The test report shall be signed by the person in charge of the test. 10
Marking, packaging and storage
Product marking
The product label shall be fixed on a conspicuous part of the pump, and the label shall comply with the provisions of GB/T13306. The label shall include the following contents: 10.1.1
Quantity.kg.
Model and name of the pump;
Main technical parameters;
Name of manufacturer:
Factory number:
Factory date.
Main technical parameters of the pump are as follows:
Motor pump: rated discharge pressure, MPa; flow, L/h: pump speed, min-, medium, prime mover power, kW, mass, kg. Manual pump; rated discharge pressure, MPa; flow, mL/time; medium, applied force, N, mass, kg. Pneumatic pump: rated discharge pressure.MPa; flow, L/h; intake pressure, MPa+intake flow, m?/h medium; pressure ratio: mass d.
Hydraulic pump: rated discharge pressure, MPa; flow.L/h; medium; pressure ratio: hydraulic medium: prime mover power, kW; mass.kg. 10.1.3
The pump should be marked with the registered trademark of the product.
The important supporting equipment of the pump should also have product labels and product certificates. 10.1.5 The crankshaft rotation direction mark should be marked on the pump body. 10.1.6 The key pressure-bearing parts of the pump should be marked after passing the inspection. 10
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