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GB/T 40077-2021: Reciprocating positive displacement pumps and pump units - Technical requirements
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Reciprocating positive displacement pumps and pump units - Technical requirements
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GB/T 40077-2021
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Basic data | Standard ID | GB/T 40077-2021 (GB/T40077-2021) | | Description (Translated English) | Reciprocating positive displacement pumps and pump units - Technical requirements | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J71 | | Word Count Estimation | 26,287 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 40077-2021: Reciprocating positive displacement pumps and pump units - Technical requirements
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Reciprocating positive displacement pumps and pump units-Technical requirements
ICS 23.080
J71
National Standards of People's Republic of China
Technical requirements for reciprocating positive displacement pumps and pump devices
(ISO 16330.2003, IDT)
Released on 2021-04-30
2021-11-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Table of contents
Foreword Ⅲ
Introduction Ⅳ
1 Scope 1
2 Normative references 1
3 Terms and definitions 3
3.1 Auxiliary equipment 3
3.2 Spare parts 3
3.3 Custom production 3
3.4 Small batch production 3
3.5 Motorized reciprocating positive displacement pump 3
3.6 Direct-acting reciprocating positive displacement pump 3
3.7 Reciprocating positive displacement pump device 3
3.8 Mass production 4
4 Confirm, agree and document information and requirements 4
4.1 Buyer Information 4
4.2 Optional item 4
4.3 Supplier Information 4
5 Application area 4
6 Pump related design 4
6.1 Environmental conditions 4
6.2 Basic design standards 5
6.3 Design of structure and pressure-bearing components 5
6.4 Sealing system 5
6.5 Bearing lubrication 5
6.6 Axis 5
6.7 Inlet and outlet pipe joints 6
6.8 Drain and exhaust 7
6.9 Threaded fasteners 7
7 Auxiliary equipment 7
7.1 Overview 7
7.2 Drive device 7
7.3 Coupling 7
7.4 Chassis 7
7.5 Protection 8
7.6 Heating and cooling 8
7.7 Safety relief device 8
7.8 Pulsation suppression device 8
7.9 Deceleration mechanism 8
7.10 Auxiliary pipeline connection 9
8 Noise 9
9 Installation and maintenance 9
10 Materials, welding and repair 9
10.1 Material selection 9
10.2 Manufacturing 9
10.3 Repair 10
11 Surface protection 10
12 Nameplate and marking 10
13 Delivery preparation 11
13.1 Anticorrosion 11
13.2 Opening 11
13.3 Piping, auxiliary equipment and spare parts 11
13.4 Identification 11
13.5 Installation and/or operating instructions 11
Appendix A (informative appendix) Data Sheet 12
Appendix B (Normative Appendix) Optional Requirements and Negotiable Items 16
Appendix C (informative appendix) Operating margin between NPIPA and NPIPR 17
Appendix D (informative appendix) Allowable maximum pressure pulsation margin 19
Appendix NA (informative appendix) The status of domestic standards corresponding to normative references in this standard 20
Technical requirements for reciprocating positive displacement pumps and pump devices
1 Scope
This standard specifies the technical requirements for reciprocating positive displacement pumps and pump devices, but does not provide for their safety and testing.
This standard applies to pumps that drive reciprocating motion through crankshafts and camshafts, as well as fluid-driven direct-acting pumps.
This standard does not apply to reciprocating positive displacement pumps where the delivery medium is not water and the entire pump is lubricated with the delivered liquid.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document.
ISO 14 Straight-sided Splines for Cylindrical Shafts (Straight-sided Splines for Cylindrical Shafts)
withinternalcentering-Dimensions, tolerancesandverification)
ISO 1027.Principles and Identification of Radiographic Image Quality Indexes for Nondestructive Testing (Radiographic Image Quality
indicatorsfornon-destructivetesting-Principlesandidentification)
ISO 2491 thin flat keys and their corresponding keyways (dimensions expressed in millimeters) [Thinparalelkeysandtheircorresponding
keyways(Dimensionsinmilimetres)]
ISO 2492 hook head wedge key or ordinary wedge key and its keyway (dimensions in millimeters) (Thintaperkeyswithorwithoutgib
headandtheircorrespondingkeyways(Dimensionsinmilimetres)]
ISO 3117 Tangential keys and keyways (Tangentialkeysandkeyways)
ISO 3453 Non-destructive testing liquid penetration inspection inspection method (Non-destructive testing-Liquidpenetrantinspec-
tion-Meansofverification.)
ISO 3912 Half-round keys and keyways (Woodruffkeysandkeyways)
ISO 4156 straight cylindrical involute spline metric module, side assembly versatility, size and inspection (Straightcylindricalin-
volutesplines-Metricmodule, sidefit-Generalities, dimensionsand inspection)
ISO 6149-1 for hydraulic transmission and general purpose pipe joints with ISO 261 metric thread and O-ring seal port and column head
Bolt end part 1.Port with O-ring seal in the counterbore groove (Connectionsforfluidpowerandgeneral
use-PortsandstudendswithISO 261threadsandO-ringsealing-Part 1.PortswithO-ringsealin-
truncatedhousing)
ISO 6149-2 Pipe joints for hydraulic transmission and general use. Ports and threaded ends with ISO 261 threads and O-ring seals
Part 2.Dimensions, design, test methods and technical requirements of heavy-duty (S series) stud ends [Connectionsforfluidpower
andgeneraluse-PortsandstudendswithISO 261threadsandO-ringsealing-Part 2.Heavyduty
(Sseries)studends-Dimensions,design,testmethodsandrequirements]
ISO 6149-3 Pipe joints for hydraulic transmission and general use. Ports and threaded ends with ISO 261 threads and O-ring seals
Part 3.Dimensions, design, test methods and technical requirements of light (L series) stud ends [Connectionsforfluidpower
andgeneraluse-PortsandstudendswithISO 261threadsandO-ringsealing-Part 3.Lightduty(L
series)studends-Dimensions,design,testmethodsandrequirements]
ISO 6162-1.2002 Flange joints of split clamps or integral flange clamps for hydraulic transmission belts and metric or inch screws. Part 1.
Use flange joints when the pressure is 3.5MPa (35bar) to 35MPa (350bar), DN13 to DN127 (Hydraulicfluid
power-Flangeconnectorswithsplitorone-pieceflangeclampsandmetricorinchscrews-Part 1.Flange
3.8
Series production
Regularly manufactured pumps or pump devices in accordance with the same specifications, and the number of production in a batch is not less than 10 units. Standards available from suppliers
Choose and purchase from the standard specification table. After reaching an agreement between the buyer and the supplier, the mass production pump can be some customized production pumps.
The specification is not within the standard specification.
Note. If the buyer is familiar with the supplier’s small-batch or mass-produced pumps or pump devices, he can choose from the specification sheet. The data in the specification table can be
Perform verification at the supplier’s test base. Unless otherwise specified on the specification sheet, clean water is generally used as the test medium.
4 Confirm, agree and document information and requirements
4.1 Buyer information
When the supplier is required to provide a pump, the buyer should provide the supplier with the information needed to select the correct pump or pump device. For this, you can use the appendix
The data sheet in A. The selection should consider all the information received and related performance requirements, environment and expected operating conditions. If some
If important information is missing, the supplier shall ask the buyer and obtain this information. In addition, the buyer is obliged to compare all possible factors that may affect the pump performance with
Inform the supplier of relevant information on the life span.
4.2 Optional items
If applicable and require deviations from this standard, the buyer’s information shall include the options and item descriptions of the special agreement. Special agreement options
And project terms can be found in Appendix B.
4.3 Supplier Information
The supplier shall provide a general layout drawing and provide at least the following information.
a) Overall dimensions;
b) Assembly size;
c) Shaft size;
d) Inlet connection size;
e) Outlet connection size.
The supplier should also provide a specification sheet, including detailed information on flow and pressure, and can obtain flow, pressure, and power at the same time at a specific shaft speed.
(Calculated by interpolation method), confirm whether it meets the buyer's requirements.
5 Application range
The design and selection of pumps and pump components shall be consistent with the delivery liquid, power fluid (if applicable), environment and operating conditions provided by the buyer in accordance with 4.1
Adapt.
6 Relevant design of the pump
6.1 Environmental conditions
Reciprocating positive displacement pumps and pump devices should be able to work under the following conditions.
a) The minimum temperature is 2℃;
b) The maximum temperature is 40℃;
c) The maximum relative humidity is 80%.
If the buyer has already specified the environmental or operating conditions (see Appendix C) when making the inquiry, as listed below, the buyer and the supplier will have to
Negotiate to determine that the pump and pump unit can meet these requirements.
---The ambient temperature or humidity is not within the above range;
---Direct sunlight;
---Air pollution, including solids in the air;
---Biochemical reaction;
---Water splashing equipment;
---Clean with hot water, steam or chemicals;
---External shock and vibration caused by machinery or earthquakes;
--- Poor ventilation;
---flood;
---Long-term shutdown or storage;
---Work below the water level;
---The marine environment.
6.2 Basic design standards
6.2.1 Under the relevant parameters provided by the buyer (see 4.1), the pump should be able to meet the requirements for continuous or intermittent operation.
6.2.2 The design of the pump structure and parts should consider the installation, maintenance, handling and replacement of vulnerable parts of the equipment, and the necessary opening bolts,
Install positioning pins, ring screws and other facilities.
6.2.3 The design should meet the safety requirements of EN809.
6.2.4 The direct-acting pump should be able to operate under the rated conditions and the specified power fluid conditions.
6.2.5 The power cylinder and valve of the direct-acting pump should adopt an overspeed limiting device to provide protection for the pump when the pump loses pressure.
6.3 Design of structure and pressure-bearing components
The design of the pump and its components shall meet the operating requirements and environmental requirements proposed by the buyer (see Appendix C), and shall be specified in advance by the supplier.
Under the combined action of long-term life and rated operating conditions, as well as normal stress and expected corrosion, pump parts cannot fail due to fatigue.
6.4 Sealing system
The following parts should be equipped with suitable seals.
---The part of the rotating shaft that extends outside the crankcase;
---The joint part of the reciprocating crosshead intermediate rod and the crankcase;
---The combination of the reciprocating plunger and the stuffing box;
---The combination of the reciprocating piston rod and the stuffing box;
---The combination of piston and cylinder.
The selection of the seal should be made according to the manufacturer's recommendation and the specific needs of the use.
6.5 Bearing lubrication
6.5.1 If grease-lubricated bearings need to be refilled during the service life of the pump, an appropriate refilling method should be provided. So
Detailed information should be provided in the maintenance manual.
6.5.2 For bearings that need to be lubricated, if process water is not used for lubrication, they should be equipped with a lubricating oil tank with visual oil in the tank.
Bit indicator. There should be no need to remove any parts other than the drain plug or the filler cap when refueling or draining oil. All details should be in the maintenance hand
Provided in the book.
Note. If the working oil level is clearly marked on the bearing box, a constant level oiler can be used.
6.6 axis
The structural dimensions of the shaft should meet the requirements of 6.6.1 to 6.6.6, so that the power of the drive can be effectively transmitted.
6.8 Drain and exhaust
After agreement between the buyer and the supplier, the pump drainage and exhaust method should be provided and shown in the instruction manual.
6.9 Threaded fasteners
Carbon steel or alloy steel threaded fasteners of pressure-bearing parts shall comply with ENISO 898-1 and EN20898-2.
When mating parts such as studs and nuts are used with easily scratched materials, in order to prevent seizure, suitable anti-bite compounds should be used before assembly.
lubricating.
7 auxiliary equipment
7.1 Overview
The supplier shall clearly indicate the auxiliary equipment used to operate the pump or pump device (including any auxiliary equipment that shall be provided by the buyer), and the location of the interface.
The location, joints, etc. should also be clearly indicated.
The equipment provided by the buyer shall be clearly marked. If the auxiliary equipment is assembled with the pump or pump unit, its design requirements should be the same as the pump or pump unit.
Set consistent.
7.2 Drive
The power of the drive device should be at least 5% higher than the maximum power required by the operating conditions, including the margin for the pressure accumulation of the safety valve, in order to meet 4.1
The requirements mentioned in. In addition to the above requirements, when considering parameters such as low temperature start, the power should be increased. If the drive is included in the scope of supply
Device, the pump supplier should choose a suitable drive device.
7.3 Coupling
7.3.1 Overview
When the pump shaft is directly connected to the shaft of a separately installed drive device, a flexible coupling should be used.
7.3.2 Grade
The type and grade of the coupling should be selected in accordance with the coupling manufacturer's recommendations, using the power calculated in 7.2.
7.3.3 Selection of coupling
The choice of coupling should comply with environmental conditions, see 6.1.
7.3.4 Parallel shaft coupling
When using an interference fit to install the coupling on a parallel shaft, the supplier should provide solutions for possible removal and replacement of the coupling in the future.
The transitional coupling should be reliably fastened to the shaft.
7.3.5 Tapered shaft coupling
The tapered hole hub and key should be effectively fixed to prevent radial and axial movement relative to the shaft. When the supplier installs the coupling, it shall ensure
Effective contact is achieved at the big end of the cone. Clamp the coupling in place with a reliable locker.
7.4 Chassis
7.4.1 The chassis or base shall have sufficient rigidity. If necessary, temporary measures shall be adopted to avoid permanent deformation during transportation.
When the maximum specified force and torque are applied to the port and the outlet joint, it should be ensured that the shaft alignment of the pump shaft and the drive device does not occur during operation.
Variety.
Note. If you need to set up a effusion tank or other facilities, you need to negotiate with the supplier.
7.4.2 Anchor points should be provided on the chassis.
7.5 Protection
The protective device should meet the requirements of EN809.
7.6 Heating and cooling
7.6.1 Design of heating/cooling channels
The design of all heating and cooling channels must meet the operating conditions specified by the buyer in 4.1.
7.6.2 Heating/cooling connector
7.6.2.1 If heating and/or cooling is required in the pump, the supplier shall provide auxiliary joints connected to the heating and/or cooling chamber.
7.6.2.2 The specifications of additional equipment to be supplied, such as pipes, isolation/drain/control valves, instruments, and condition monitoring equipment, shall be negotiated.
7.7 Safety relief device
7.7.1 Overview
Note. Systems using positive displacement pumps need to be equipped with safety relief devices.
7.7.2 The discharge flow of the safety relief device should match the maximum flow of the pump.
7.7.3 The maximum discharge pressure of the safety valve should be higher than the set pressure by 5 bar or within 25% of the set pressure. The pressure must not exceed
The maximum pressure for the test shall not exceed the pressure value corresponding to the maximum allowable power of the drive device.
7.7.4 The nameplate should clearly identify the cold water pressure test pressure of any internal pressure safety relief device of the pump. If you need to lower pressure
To provide protection for the pipeline or instrument, the user should additionally install a properly set external safety relief device.
7.8 Pulsation suppression device
7.8.1 The type of pulsation suppression device provided shall be negotiated between the buyer and the supplier.
7.8.2 When the inlet and outlet pulsation suppression devices are included in the scope of supply, you can refer to Appendix D for selection.
7.8.3 When the pulsation suppression device is supplied in bulk for installation in the buyer's process pipeline, the supplier shall provide information on the correct installation of the device.
Description. When the pump or pump unit is supplied for the first time, the buyer shall be provided with an approved overall installation layout drawing.
7.8.4 When the pulsation suppression device is supplied as a complete set with the pump or pump device, the process piping arrangement should be negotiated between the buyer and the supplier.
7.9 Speed reduction mechanism
7.9.1 Overview
Note. When the reduction mechanism and the pump are designed as one, the manufacturer is responsible for ensuring that its size is appropriate.
7.9.2 If the drive unit and the power pump should be decelerated, the type of deceleration mechanism should be negotiated between the buyer and the supplier.
7.9.3 The belt drive shall not be used at an ambient temperature exceeding 65°C. The application factor of the belt drive is as follows
select.
---For multi-cylinder plunger pumps, it shall not be less than 1.5;
---For the double-cylinder double-acting piston pump, it shall not be less than 1.6;
---For double-cylinder single-acting pumps, it shall not be less than 1.75.
For operation in hazardous areas, the belt should have electrostatic conduction function.
7.9.4 When using a belt drive, it should be protected in accordance with 7.5.
7.9.5 The enclosed gear drive between the motor and the pump shall comply with ISO /T R13593.If there is no suitable drive
When counting, a factor that is at least twice that of the rotary power pump should be used.
The flexible coupling between the gearbox shaft and the pump shaft should meet the requirements of 7.3.
7.10 Auxiliary pipeline connection
7.10.1 Unless otherwise agreed between the buyer and the supplier, each device can only be equipped with one inlet connection and one outlet connection.
7.10.2 All auxiliary connections should be clearly marked in the instruction manual.
7.10.3 All auxiliary port connections shall comply with ISO 7005-1, ISO 7005-2, ISO 7005-3, EN10226-1, ENISO 228-1,
ISO 6149-1, ISO 6149-2 and ISO 6149-3.
Note. If the buyer and the supplier reach an agreement, other connection specifications can be provided.
8 Noise
8.1 The requirements for noise emission shall comply with EN809.
8.2 Any test agreed between the buyer and the supplier shall comply with EN12639.
9 Installation and maintenance
9.1 Overview
When the transported medium is a dangerous liquid, the pump device should be installed in accordance with EN809.
9.2 The design and structure of the pump or pump device should be convenient for installation, regular maintenance, inspection and replacement of wearing parts, such as oil, packing, valves and gaskets, and
No need to disassemble the main parts.
9.3 The documents supplied with the pump or pump unit shall comply with EN809.
9.4 For installation, commissioning and maintenance, standard tools should be considered when designing, and non-standard tools can also be used when necessary, but a list should be listed and
Provide special tools.
9.5 In order to facilitate disassembly and assembly, the necessary opening bolts, lifting lugs or ring screw holes, and installation positioning pins should be provided.
When bolting, if any possible surface damage would endanger the tightness or use function, the uncap bolt should be partially removed from the surface where it is fixed.
release.
10 Materials, welding and repair
10.1 Material selection
Should be selected according to the physical properties and chemical composition of the material in order to meet the requirements of 4.1 and 6.1.
10.2 Manufacturing
10.2.1 Casting
Castings should be free of major defects, such as shrinkage holes, pores, cracks, dirt, blisters and other similar harmful defects. The surface of the casting should be sprayed
Sand, shot blasting, pickling or any other standard methods for cleaning. All casting burrs, flashes, gates and riser residues should be removed and filed
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