JB/T 10600-2006Vertical self-priming pumps (English PDF)

3.1 Type

3.1.1

The pump is self-priming without seal.

3.1.2

Based on the connection with the motor, pump is divided into:

a) Coaxial;

b) Non-coaxial.

4.2

The pump shall function properly under the following conditions of use:

a) The delivered medium and temperature shall comply with the provisions of Appendix A:

b) The volume of the solid phase of the delivered medium is less than 2%:

c) The kinematic viscosity of the delivered medium is (7 ~ 23) × 10

-6 m

2

/s;

d) The delivered medium density is not greater than 1.05 × 10

3 kg/m

3

.

4.3

During the operation of the pump, the variation of the supply voltage and frequency and its influence on the motor performance and temperature rise limits shall comply with the provisions of GB 755.

4.4

Performance and its deviations:

4.4.1

Under the prescribed flow rate, the head deviation shall comply with the level 2 requirements in GB/T 12785.

4.4.2

Pump flow rate is within the range of 0.7 ~ 1.3 times of the specified flow rate, AND the shaft power shall not exceed the rated power of the pump.

4.4.3

As for the coaxial connection pump, the motor electrical performance guarantee value and tolerance deviation shall comply with the provisions of GB 755.

4.4.4

Under the specified flow rate and the allowable suction depth, the pump shall be capable of normal startup and operation.

4.5

The vibration of the pump shall comply with Class C requirements of JB/T 8097.

4.6

The pump noise shall comply with the level C requirements of JB/T 8098.

4.7

The working pressure bearing parts of the pump shall be subjected to water (or gas) pressure test without leakage, AND the test pressure is 1.5 times the working pressure which lasts for 5 min.

4.8

Pump suction and discharge flanges shall be capable of withstanding the maximum permissible working pressure. The flange pressure of the non-metal pump shall be not less than 0.6MPa, the flange pressure of the metal pump shall be not less than 1.0MPa, AND the sizes shall comply with the provisions of the relevant standards.

4.9

Assembly:

4.20

Main parts material requirements of pumps:

4.20.1

Cast iron parts shall comply with the provisions of JB/T 6880.1.

4.20.2

Stainless steel parts shall comply with the provisions of GB/T 1220.

4.20.3

Alloy steel parts shall comply with the provisions of GB/T 3077.

4.20.4

Others shall comply with the provisions of the corresponding standards.

5.1

Performance tests of coaxial pumps shall follow the provisions of GB/T

12785.

5.2

Performance tests of non-coaxial pump shall follow the provisions of GB/T 3216; AND the performance tests of motor shall follow the provisions of GB/T 1032.

5.3

The diameters of the solid particles passing through the pump shall be determined in accordance with the provisions of GB/T 12785, AND the value shall comply with the provisions of 3.3.4.

6.1.2

Inspection items:

a) Appearance inspection;

b) Rotation inspection;

c) Suction inlet solenoid valve (or electric valve) and discharge outlet check valve test;

d) Self-priming test;

e) Allowable suction depth test;

f) Determination of head at specified flow rate;

g) Safety mark inspection;

h) Item a), b), c), d), g) is subjected to full inspection, AND item e), f) is subjected to spot inspection.

6.1.3

Sampling inspection and judgment disposal rules shall comply with the provisions of GB/T 2828.1. It may use normal inspection one time sampling plan, with the inspected batch in monthly (or daily) production or one time ordering number (set), the inspection level is ordinary inspection level II, AND the accepted quality level is 4.0; it may also be determined by the supplier and the buyer through negotiation.

6.2 Type inspection

6.2.1

Under any one of the following circumstances, it shall conduct type test:

a) The trial production type finalization for new product or old product trans- factory production;

b) After the official production, the structure, material or technology has greatly changed which may affect the product performance;

c) Production restoration after stop production for a long time;

d) When the products manufactured in batches are subjected to regular inspection (at least once every year);

e) There is major difference between the exit-factory test results and the last type test results;

7.1 Marking

7.1.1 Product plates

7.1.1.1

The material of the plates and the data on the plates shall be stamped

in such a way as to ensure that it is not easily erased throughout the life of the marking.

7.1.1.2

The plates shall be fixed to the obvious position of the pump. It shall indicate at least the following items:

a) The name of the manufacturer;

b) The pump model and name;

c) The specified flow rate, in m

3

/h;

d) The specified head, in m;

e) The synchronous speed, in r/min;

f) Rated (or matched) power, in kW;

g) Suction inlet diameter, in mm;

h) Discharge diameter (as required), in mm;

i) Allowable suction depth, in m;

j) Rated voltage, in V; rated current, in A (only for coaxially connected pumps);

k) Insulation class or temperature rise (only for coaxially connected pumps);

l) Exit-factory number;

m) The date of manufacture;

n) Mass (net), in kg;

o) Implemented product standard number.

7.1.2 Package marking