GB 5135.7-2003 Automatic sprinkler fire extinguishing systems Part 7: Water flow indicators
Some standard content:
The contents of Chapter 5 and Chapter 7 of this part are restrictive, and the rest are recommended. GB51558 Automatic water fire extinguishing system is divided into 15 parts: Part 1: Sprinkler heads Part 2: Virtual alarm and delay devices Part 3: Water sprinkler heads Part 4: Local alarm network Part 5: Sprinkler roots Part 6: General design guidelines for water extinguishing systems Indicators
Part 8: Gadgets
Part 9: 1-stage extruded rapid response (ESFR) nozzles Part 10: Pressure and shut-off
Part 11, Grooved pipe joints and assembly design
Part 12, Expanded summer noodle, porridge, wine and beverage nozzles Part 13: Water banquet nozzles
Part 4: Functions
Part 15, Household nozzles
This part is Part 7 of GB515.
B 5135,72003
This part is formulated on the basis of GA32-1992* Performance requirements and test method for water flow indicators of automatic sprinkler fire extinguishing systems. Compared with GA32-1992, this part has the following main changes: the technical content of the standard has not changed, the material, technical requirements and expression of B/T1.1-200C have been revised.
The requirements for product packaging, transportation and storage have been added. This part shall be terminated from the date of purchase of GA32-1992, and this part shall be issued by the Ministry of Public Security of the People's Republic of China. This part is under the jurisdiction of the Second Subcommittee of the National Fire Protection Standardization Technical Committee (CSBTS/TC113/SC2). The main drafters of this part are Yang Xingming, Zhang Shaoxie, Luo Zongjun and Bai Bantong. 1
1 Scope
Automatic sprinkler fire extinguishing system Part 7: Water flow indicator GH5135.7-2003
This part of B5135 specifies the requirements for water flow indicators of automatic sprinkler fire extinguishing systems, test methods, inspection and marking, packaging, transportation, storage, etc.
This part applies to the meter-type water flow indicators in automatic sprinkler fire extinguishing systems and other types of water flow indicators. 2 Objective references|| tt||The clauses in the following documents become clauses of this part through reference in this part of GB13. For any dated referenced documents, all subsequent amendments (excluding erroneous contents) or revisions are not applicable to this part. However, all parties that reach an agreement based on this part may report updated versions of these documents. For any dated referenced documents, the latest edition shall apply to this part. GB/T1842 Environmental test method CB/T2423.3 Basic specification for electrical products Test method for CL value determination Heat test method GB/T5720 Door image adhesive seal test method 3 Terms and definitions
The following terms and definitions are applicable to this part of GB51. 3.1
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water flow indicator
an alarm device used in automatic sprinkler fire extinguishing system to change water mirror signal or signal. 3.2
delay time
the time for the water to drive the transmission part to start the alarm signal. 3.3
sensitivity
the small water flow base that drives the water flow indicator to send out the full signal. 4 specifications
water flow indicator diameter is 25mm, 50mm, 6=mm, 8mm, 10mx125m, 50ma, 20um5 requirements
5.1 the maximum working pressure
the working pressure of the water flow indicator is 1.2MP,
5. 2 Delayed tooth performance
5.2.1 The short-recessed time of the water flow indicator with a delay function shall be adjustable. 5.2.2 The general time obtained by the test according to 6.2 shall be within the range of 23-90~. 5.3 Working spectrum
5.3.1 The water flow indicator shall be tested according to 6.4. After 300 working days, the test object shall be sensitive and have a 2-position speed. 5.3.2 After the test, the test object shall be tested with a reduced load. The test results shall be in accordance with 3.4. 1
CB5135.7--2003
5.4 Touch resistance
The water filter indicator shall be fully corroded according to 6.4. After the test, no part of it shall be damaged by cracks or other factors that may affect its integrity. After the test, it shall undergo a sensitivity test. The test results shall comply with the provisions of 5. 5.5 Rigid non-metallic materials
5.5.1 If rigid non-metallic materials are used for the flow indicator, the rigid non-metallic material parts shall be subjected to air aging test in accordance with 5.5.1.
5.5.2 After the air aging test, the test piece shall not show deformation, cracks or other damage that affects the function of the water flow indicator.
5.5.3 If the indicator blades are made of polyvinyl chloride, the polyvinyl chloride blades shall be tested in accordance with 6.5.2 to determine their resistance to environmental stress cracking. After the test, the blades shall be free of cracks.
5.6 Impact resistance
5.6.1 The water flow indicator shall be subjected to impact test in accordance with 6.6. After three impacts recorded in 6.8, no parts shall be loose to prevent the water flow indicator from operating. After the test, the sensitivity test shall be carried out in 6.R. The test results shall comply with the provisions of 5.8. 5.6.2 After the test, the outer shell of the flow indicator should be checked. If the outer shell is broken without affecting the operation of the water system indicator, it is qualified. If the outer shell is made of clay or waterproof, and the outer shell is broken, the water indicator is unqualified. 5.7 Water aging resistance of elastic non-metallic wide-radiation gaskets. Single-layer non-net sealing should be subjected to water aging test according to 6.?. () Except for the shape of the seal. After the test, the sealing surface and the tool should be sealed tightly, and there should be no movement, adhesion or deformation. 5.8 Sensitivity
5.8.1 The water drainage indicator should be tested according to 6.8, and the test results should meet the following requirements: a) When the water flow is less than or equal to 15.UI./min, the water flow is not false; b) The alarm flow rate should be any value between 15.0L/min-37.5[./min. When it reaches 37.J./min, an alarm must be given; r) The alarm flow rate should not be greater than 37.51/min; 5.8.2 The test pressure range is between 0.14MPa and 1.2MPa; 5.9 Hydraulic friction loss
The water flow indicator should also be connected according to 6.8, and the test results should meet the following requirements: a) When the water flow is less than or equal to 15.UI./min, the water flow is not false; b) The alarm flow rate should be any value between 15.0L/min-37.5[./min. When it reaches 37.J./min, an alarm must be given; r) The alarm flow rate should not be greater than 37.51/min; 5.8.2 The test pressure range is between 0.14MPa and 1.2MPa; 5.9 Hydraulic friction loss
The water flow indicator should also be connected according to 7. The hydraulic friction test should be carried out. During the test, when the water velocity is 4.5m/*, the pressure loss caused by the resistance of the water flow indicator shall not exceed 0.MPa. 5.10 Water impact resistance
5.10.1 The water flow indicator shall be tested for water impact according to 6.10. After the water impact, it shall be reset to the original speed. 5.10.2 After the test, it shall be tested for retreat according to 5.8. The test results shall comply with the provisions of 5.8. 5.11 Water pressure performance
The water flow indicator shall be tested for water pressure according to 6.1: Under the water pressure of 2.4MP, it shall last for 5min. There shall be no rupture and leakage, and no permanent deformation or damage.
5.12 Capacity wwW.bzxz.Net
When the indicator is tested according to 6.12, its components shall not show any phenomena such as overheating, resistance points or contact separation. 5.13 Withstand voltage capability and insulation resistance 5.13.1 The water flow indicator shall be tested for withstand voltage capability according to 6.13: Under the test load voltage specified in 6.13, the following parts shall withstand 60 s-5 s, etc., between all active parts and shielding parts (including the housing); 5.13.2 The water flow indicator shall be tested for insulation resistance according to 6.3, and the insulation resistance between the following parts shall be greater than 2M. When the contact is broken, between the same-pole incoming and outgoing lines: between the live parts of the same pole, between the distribution points and the line diagram and control circuit: between each live part and the metal frame (including the housing). 6 Test Methods
Method 1 Appearance Inspection
Product 1.1 The markings of the test piece shall be complete and meet the requirements of the markings in Chapter 1. 6.t.2 Check the sample against the design drawings and technical documents to see if it is consistent with the national standards. 6.1.3 Check the process consistency of the test piece and check whether the test piece has any defects or mechanical damage. 6.2 Delay Performance Test
GB5135.7-2Q03
Install the water flow indicator in the normal working position on the test pipe, make the blade move under normal flow, and measure the delay time. The test results shall meet the requirements of 5.2.
6.3 Working cycle test
Connect the water flow indicator normally, install it in the working position on the test road, and subject it to 500-degree action under the reporting flow plate, the working cycle including the movement of the moving blades is reported and then placed in the friendly position. The test result shall comply with the provisions of 5.3. 6.4 Corrosion test. 6.4.1 Place a test piece in a chemical corrosion test box. Add 0.5% of the indirect humidity in the working room every 24 hours. At the bottom of the working space, fill a large container with a flat bottom with enough water to allow it to evaporate naturally to form a hygroscopic environment. The test temperature is maintained at 25°C and the test lasts for 10 days. 6.4.2 Hang the test piece in the middle of the working room and add a cover 5m away from the working part of the test piece to prevent the condensed water from the working part from dripping on the test piece. 6.4.3 After the test, take out the test piece and place it in an environment with a temperature change of 25℃ + 1.5℃ for 24 hours. Then inspect the test piece. The test result shall comply with the provisions of 5.4.
6.5 Test of severe non-metallic materials
6.5.1 Place a rigid non-metallic material component in an air oven. The test piece should not be in contact with the entire oven in the oven. Preheat the oven to an aging temperature of 9℃=2.7 for 2 hours or an aging temperature of 70℃+2℃ for 2 hours. Then place the tested test piece in air at a temperature of 2)℃±5. After cooling for 24 hours, inspect the test piece. The test result should comply with the provisions of 5.5.2. 6.5.2 Place three vinyl blades in the reagent at a test temperature of 50℃±2℃ for 11 hours. After the test, check the pieces. The test results should comply with the provisions of 5.3. The test should be carried out in accordance with the provisions of GB1842. 6.6 Impact test
6.6. 1 Fix a test piece on a dry test bench and apply an impact energy of 6. J in three external multiplied directions. Each direction should be impacted once.
6.6.2 The test is conducted using a 0.54kR steel ball. After the test, check the test piece. The test results shall comply with the provisions of 6.5.7 Water aging test for elastic non-metallic sealing gaskets 6.7.1 Take a test piece and conduct the test
6.7.2 Take a 25mm long piece of each test piece and place it between two plates with dimensions of 75mm×21mm×mm) and a center of 38mm. Tighten the test piece with two bolts and press it to two-thirds of the test piece's stop, see Figure 1. GR5135.7—2003
Applicable materials
Figure 1 Loading fixture for elastic non-metallic sealing gaskets
Unit: meter
6.7.3 Then place the tool in water at 7=2℃ for 9 hours. After the test, check the test piece. The test piece shall comply with the provisions of 5.
6.7.4 The structural performance of the rubber seal diagram shall be checked (according to the provisions of 13/T5720, and the materials shall meet the requirements of the corresponding cases. 6.8 Sensitivity test
Install a test piece in the normal operation sequence of the test pipe, and slowly increase the flow rate in the test pipeline until the flow indicator is activated and a non-alarm signal is issued. The flow rate estimate shall comply with the provisions of 3.8. 6.9 Hydraulic friction loss test
6.9.1 Install the water injection indicator in the second position of the belt Installed on the test differential pipeline, at least 100 square pipes of the same diameter are provided on both sides of the actual test piece. On the test pipeline on both sides of the micro-test piece, two natural point holes are placed at the same position of the test piece for differential matching. 6.9.2 Adjust the test pipe drop system to make the flow rate of the test station 4.5m/s, and use the pressure gauge to measure the pressure value between the two test valves:
6.9.3 The test piece will be replaced by a pipe section with a minimum flow rate of 4.5m/s. The indicator should be placed in front of the test piece. 6.9.4 The hydraulic resistance loss P of the water flow indicator can be obtained by the following calculation: P,-a-AF.
The hydraulic resistance loss P of the water flow indicator shall comply with the provisions of 5.! 6.9.5 The quality of the measurement and pressure change test area shall not be less than 10+2 years, and the water flushing test shall not be conducted
6.0.1 Install the water flow indicator on the test pipeline in the correct position, and the water plug between the water plugs shall be used to test the water flow indicator. 1.54m/3, maintain the relative flow rate of 1rs. Then quickly reduce the flow rate to 0.6.0.2. After the test, the test piece is tested in 6.8. The test results should meet the requirements of 3. 5.10.3. The water flow indicator used in the test items described in 6.3.1 and 6.10.2 is reversed for 50 s. The flow rate of the reversed flow is within 50 s. Each time the flow rate is 10 s. Then the test piece can be tested according to the frequency of 5.9. Note that the test results should be in accordance with 5. 6.11 Water pressure test
GB5135.7-2DC3
Install the water flow indicator in normal operation and fill it with water. Slowly raise the pressure to 2.1MPa and maintain it for 5min. Then check the test piece. The test result should meet the requirements of 5.11. 6.12 Failure test
6.12.1 The water flow indicator is operated for 50 cycles at a frequency of six cycles per minute. The test voltage applied is the rated voltage at the melting point, and the test current is 150% of the rated voltage. 6.12.2 Similar single The water flow indicator shall be tested under the following conditions: (1) For water flow indicators with multiple rated voltage and single rated current, the test voltage shall not be selected: (2) For water flow indicators with multiple rated current, the test voltage shall be selected: (3) For water flow indicators with multiple rated current, the test voltage shall be selected: (4) For water flow indicators with multiple rated current, the test voltage shall be selected: (5) For water flow indicators with multiple rated current, the test voltage shall be selected: (6) For water flow indicators with multiple rated voltage and single rated current, the test voltage shall be selected: (7) For water flow indicators with multiple rated current, the test voltage shall be selected: (8) For water flow indicators with multiple rated voltage and single rated current, the test voltage shall be selected: (9) For water flow indicators with multiple rated current and single rated current, the test voltage shall be selected: (10) For water flow indicators with multiple rated voltage and single rated current, the test voltage shall be selected: (11) For water flow indicators with multiple rated voltage and single rated current, the test voltage shall be selected: (12) For water flow indicators with multiple rated voltage and single rated current, the test voltage shall be selected: (13) For water flow indicators with multiple rated voltage and single rated current, the test voltage shall be selected: (14) For water flow indicators with multiple rated voltage and single rated current, the test voltage shall be selected: (15) For water flow indicators with multiple rated voltage and single rated current, the test voltage shall be selected: (16) For water flow indicators with multiple rated voltage and single rated current, the test voltage shall be selected: (17) 6.13 Withstand voltage and insulation resistance test
6.13.1 The water flow indicator is installed on the test equipment in the normal working position, and 6.13.2 is carried out for two cycles of fixed heat test according to (38/1242). Each cycle is 245. The temperature of the fixed heat test is 45=2, which is 931. The test unit shall be immediately tested for withstand voltage and insulation resistance according to 6.13.3 and 5.:34.
5.13.3 Withstand voltage test
5.13.3.1 The test power supply of this test adopts 5UHz DC power supply, and the voltage should meet the following requirements:) For the rated voltage of the bottle, the water flow indicator adopts 500V; 5:5, the rated voltage is equal to 1:5. 13.3.2 The test voltage shall be increased from zero to the required test voltage at a rate of 500V/s/s to 500V/s, and maintained at 503+=8. The test monitoring instrument shall be used for the test piece. 13.3.2 The test piece shall be subjected to the test voltage as specified in 13.4.1 Add 5U0V to 5Vl.c for a period of 5:00: 6.13.4.2 The test monitoring instrument used for measuring insulation resistance shall meet the following technical requirements: a) Test voltage, nil.e.=oVd.c.:
b) Measuring range: 0M9~500M
) Minimum division: 9.1M2:
6.13.4.3 Insulation resistance measurement shall be carried out as specified in 17.2. 7.1 The manufacturer shall design and follow the quality management procedures to ensure that each batch of products meets all requirements. 7.2 Inspection 7.2.1 The product type is tested according to the provisions of this part. 7.2.7 Production station; Inspection seat according to the provisions of this part 6.1, 6.23.84.17 each test. 7.2.3 Sample quantity and test process according to Figure 7. CB5135.72003
Water mixed with grape
More than 3 pieces
Liao Yi good
External inspection;
Endurance test;
Work test control;
Pre-test:
Creation of non-safety material test.
Central control!
Elastic non-metallic gasket water resistance test
Note: The whole word in the formula is the test sequence. 7.3 Qualification judgment
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Combustion test
.9-Water rate group failure test
Figure 2 Test scope
Water impact test!
Water resistance
Over-water resistance
Electric resistance test.
7.3.1 If all products meet the requirements of 5.1~5.13 of this part, the batch of products is qualified. 7.3.2 The product does not meet the requirements of 5.8, 5.0, 5.11. If one of the above is not met, the approved product will be judged as unqualified. If the other items are not met, double sampling inspection is allowed. If one case is still unqualified, the batch of products will be judged as unqualified products. 8. Marking and instruction manual
8.1 The water flow indicator shall have two clear markings, including: 1) Product name, specification and model:
Manufacturer name or new mark;
Working pressure:
Degree of flexibility;
e) Water drainage direction;
f) Electrical performance index!
) Production and factory number.
8.2 Instructions for Use
The water flow indicator shall be printed with instructions for use in its packaging. The instructions for use shall at least include the product name, specification model, operating environment conditions, storage environment conditions, production date, production standard, necessary technical parameters, installation and operation instructions and installation diagram, precautions, manufacturer name, address and contact information, etc. 9 Packaging, transportation, storage
9.1 Packaging
9.1.1 The water flow indicator shall be placed separately in the packaging box. 2 The product packaging shall be accompanied by instructions for use and content certificate 9.1.2
9.1.3 The outside of the packaging box shall indicate the direction of storage, the number of pieces allowed to be stored, and the storage protection conditions, etc. 9.2 Transportation
During the transportation of the water flow indicator: precautions shall be taken to prevent the water flow indicator from being damaged and collisions shall be prevented. 9.3 Storage
CB 5135.7-2033
The flow indicator should be placed in a ventilated, dry warehouse, and avoid being stored together with volatile substances at a temperature of -10.0 to +10.0.
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