This standard includes all technical requirements and test methods of the test specifications of the German Delimon Company. In addition, according to the actual domestic situation, the assessment items such as cleanliness and life have been added, and the corresponding test methods have been added. This standard specifies the model, basic parameters and dimensions, technical requirements, test methods, inspection rules and signs, labels and packaging of the two-position four-way reversing valve 40 MPa (hereinafter referred to as the reversing valve). This standard is applicable to the two-position four-way reversing valve in the dual-line dry oil centralized lubrication system with a nominal pressure of 40 MPa. JB/T 8463-1996 Two-position four-way reversing valve 40MPa JB/T8463-1996 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JH/T8463-96
Two-way Four-way Reversing Valve
1996-09-03 Issued
People's Republic of China Mechanical Industry North
1997-07-01 Implementation
JB/T 8463-96
This standard includes all technical requirements and test methods of the German standard. In addition, according to the actual situation in China, it adds assessment items such as exhaust gas and life, and adds corresponding test methods. This standard is issued and managed by Zhe'an Heavy Machinery Research Institute. The drafting unit of this standard is Shangrun Design Institute. The main drafters of this standard are Tong Wenyuan.
1Fan Xian
Mechanical Industry Standard of the People's Republic of China
Two-position four-way reversing valve
JB/T8463:96
The standard stipulates the requirements for the performance and size of the vehicle, the test language, the inspection rules and standards. This standard is applicable to the two-position four-way reversing valve in the nominal force section 0M of the system. 2 Reference standards
The relevant texts contained in the following notes are also included in this standard and will become the standard references. When this standard is in service, the latest version is valid, and it will be revised later. It is recommended that engineers using this standard should explore the possibility of integrating the latest version: GB 4S85?
Renrun products and the total assembly of the Fengqi
2S more than one 8? Elimination code assembly component logo, package number, operation, storage model, basic parameters and dimensions
3.1 Model
32 Basic number
Press knife single stage, 40MP:
Full code
Liu Liu electric weakbzxz.net
Yi Xin Guo Dao
Reversing network all evil parameters Should be in accordance with the table 1 memory is. Length 1
Public station pressure
24F:FM
3.3 Overall dimensions
Channel intermediary
--27 years
Reversing color scale diagram 1
Machinery City Industry Department 1996-09-(3 Standard
Reversing time
Electric machine support
TE telephone
1997-(17-01 Implementation
A-tlry
4 Technical requirements
4.1 Connection performance
B8463-96
Figure 1 External dimensions
Changeable in nominal pressure, changeable in the end, flash this box from the original normal feeling of ten meters 4. 2 Internal seal
Environmental conditions can be read under nominal pressure, " The leakage of the screen shall not exceed 6mL at min. 4.3 The seal
The changer is sealed under the specified pressure, and the external seals are not induced to adjust. 4.4 The impurities discharged from the changer are more than 130mg. 4.5 The life of the changer is not less than 4 times: Under the nominal pressure, when the internal pressure of the changer is greater than 1m, it is the life limit of the changer valve.
5 Test method
5.1 Test of the quality improvement
changer (except for the oil intake test of the machine) s.2 Principle of the test system
The test system of the changer is shown in Figure 2
JB/T846306
1-Just broadcast the case: 2 force exchange:: the test switching width: "number of shapes") 5 load stop 15 a double line distributor: 2 a positive force diagram 2 test system Beijing diagram
5.3 press the danger test
the system Qiu Fang Xie full 40a with: /10z city event switching, continuous operation 15mim switching I should change the time or certificate, the base switching time m piece core spectrum to the two within the range of the size. The value will be specified in 4.1, 5.4
the switching position, increase the adjustment port to adjust the system pressure to 0MP measurement scale 1m leakage screen value its value should be specified in 4.2.
the question brain in the 5 mouth room to be subjected to the company's detailed test. 5.5 External seal
Seal 6, 2R. Adjust the pressure to 4MP. Check the valve part for any leakage.
5.6 Screen cleaning inspection
Wash all oil-passing parts of the deep parts with filtered petroleum. Use petroleum ether to wash the pieces. Dry them in a box with a temperature of 20℃ and then put them in a box with a temperature of 1℃. After weighing, the value of the flow is the soft vertical value, which should meet the requirements of the regulations of 4.
5.7 Full life test
Full life test should be carried out on the whole test of the simulated efficiency level and system working conditions. Acceptance test: the grease with a value not exceeding 25 (25.15g/m3) can be replaced by a valve with a frequency of 1/6I. After continuous operation for 10 times, the internal sealing test shall be carried out according to the provisions of 5. The leakage within the formula is small and the maximum leakage is 2a[. 6 Inspection rules
6.1 Stop inspection
The mold inspection shall be carried out according to the provisions of .3.5.4 and .5. 6.2. Type control
62.1 Type inspection shall be carried out when the following conditions occur: (1) the first trial production is reached, and the type control timing is: (2) when there are significant changes in the structure, materials, and ends that may affect the product performance, (3) after five years of normal production,
JT846396
6.2.2 The products inspected by type shall be accepted from the products that have been inspected or put into storage, and the number of each time is only: pieces. 6.2.3 Type inspection The product shall be inspected for any item that fails the type inspection. If any item fails to meet the requirements, the product shall be deemed as a defective product. The marking, labeling and packaging of the product shall comply with the provisions of Section 3 of this Regulation.
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