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GB 5135.17-2011 English PDF

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GB 5135.17-2011: Automatic sprinkler system -- Part 17: Pressure reducing valves
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GB 5135.17-2011English329 Add to Cart 3 days [Need to translate] Automatic sprinkler system -- Part 17: Pressure reducing valves Valid GB 5135.17-2011

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Basic data

Standard ID GB 5135.17-2011 (GB5135.17-2011)
Description (Translated English) Automatic sprinkler system -- Part 17: Pressure reducing valves
Sector / Industry National Standard
Classification of Chinese Standard C84
Classification of International Standard 13.220.20
Word Count Estimation 14,164
Date of Issue 2011-07-20
Date of Implementation 2011-11-01
Quoted Standard GB/T 191; GB/T 528; GB/T 1690; GB 5135.11; GB/T 7306.1; GB/T 7759; GB/T 9112; GB/T 9969; GB/T 12220; GB/T 17241.6; HG/T 2580; GB/T 7306.2
Regulation (derived from) Announcement of Newly Approved National Standards No. 10 of 2011
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This Chinese standard relates to automatic sprinkler system valve terminology and definitions, classifications, model preparation, requirements, test methods, inspection rules and signs, packaging, transportation, storage and so on. This standard applies to the sprinkler system in the direct -acting and pilot-operated pressure relief valve.

GB 5135.17-2011: Automatic sprinkler system -- Part 17: Pressure reducing valves

---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.
Automatic sprinkler system.Part 17. Pressure reducing valves ICS 13.220.20 C84 National Standards of People's Republic of China Automatic sprinkler systems Part 17. valve Part 17. Pressurereducingvalves Issued on. 2011-07-20 2011-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB section 5135 Chapter 5, Chapter 6, Section 8 and 9.1 are mandatory, the rest are recommended. GB 5135 "automatic sprinkler system" has been divided into 21 sections. --- Part 1. Sprinklers; --- Part 2. Wet alarm valves, retard, water alarm; --- Part 3. spray nozzle; --- Part 4. Dry alarm valve; --- Part 5. deluge alarm valve; --- Part 6. General Valve; --- Part 7. flow indicator; --- Part 8. Accelerator; --- Part 9. Early Suppression Fast Response (ESFR) sprinklers; --- Part 10. Pressure Switch; --- Part 11. grooved pipe fittings; --- Part 12. Extending coverage product sprinklers; --- Part 13. Water curtain nozzle; --- Part 14. Preaction means; --- Part 15. head of household; --- Part 16. Fire sprinkler hose; --- Part 17. valve; --- Part 18. Fire pipe hangers; --- Part 19. Plastic pipes and pipe fittings; --- Part 20. coated steel; --- Part 21. terminal water-test equipment; This is Part 17 GB 5135's. This section drafted in accordance with GB/T 1.1-2009 given rules. Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents. This section presents the People's Republic of China Ministry of Public Security. This part of the National Standardization Technical Committee fixed fire extinguishing system Technical Committee (SAC/TC113/SC2) centralized. This section is responsible for drafting unit. Ministry of Public Security in Tianjin Fire Research Institute. Participated in the drafting of this section. Nanhai, Foshan City, Yongxing Valve Manufacturing Co., Ltd., Shanghai Guanlong Valve Machinery Co., Ltd., Tyco Flow Control of International Trade (Shanghai) Co., Ltd. The main drafters of this section. Luozong Jun, Baidian Tao, Li, Liu Lianxi, Wangshu Yan, Tian Liwei, Chen Jian Ming Lee Hong, Zhao Lei. Automatic sprinkler systems Part 17. valve

1 Scope

GB 5135 of the provisions of this part of the sprinkler system valve terminology and definitions, classification, model designation, requirements, testing Party Method, inspection rules and signs, packaging, transportation, storage and so on. This section applies to automatic sprinkler system in a direct-acting and pilot-operated relief valve.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 191 Packaging - Pictorial signs GB/T 528 Determination of vulcanized rubber or thermoplastic rubber tensile stress-strain properties GB/T 1690 vulcanized rubber or thermoplastic rubber Test method for resistance to liquids Part 11 GB 5135.11 sprinkler system. grooved pipe fittings GB/T 7306 (all parts) 55 ° sealing pipe thread GB/T 7759 vulcanized rubber, thermoplastic rubber at room temperature, high and low temperature compression set determination GB/T 9112 steel pipe flanges with type parameters GB/T 9969 General Instructions industrial products GB/T 12220 Universal Valve logo GB/T 17241.6 whole cast iron flanges HG/T 2580 Rubber or plastic coated fabrics - Measurement of tensile strength and elongation at break of

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Valve pressurereducingvalve Automatic sprinkler system, through its structural components to achieve when the inlet pressure and outlet flow change in the pressure drops below a certain need The outlet pressure of the valve. 3.2 Pilot valve pilot-operatedpressurereducingvalve Automatic sprinkler system, from the main valve and pilot valves, main valve outlet pressure changes by amplifying pilot valve controls the main valve valve movement Pressure relief valve. 3.3 Direct acting valve direct-actingpressurereducingvalve Automatic sprinkler system, the use of direct control valve outlet pressure changes the valve movement. 3.4 Rated working pressure ratedworkingpressure Maximum normal operating pressure relief valve inlet pressure allowed. 3.5 Starting flow startingflow When the valve to work properly, exports began to increase from zero flow, no flow outlet pressure decreased significantly when. 3.6 HIP liter staticpressurerise When the valve to work properly, the outlet flow from the starting flow slowly close to zero, the outlet pressure of appreciation. 3.7 Setting outlet pressure outletsetpressure When the valve normally work effectively, the pressure at the inlet and the outlet of the rated working pressure for the case where the flow of starting flow rate, a pressure reducing valve Port working pressure. Setting outlet pressure is adjustable. 3.8 Maximum flow maximumflow An inlet valve for the rated pressure relief valve is set within the normal working pressure range can reach the upper limit of the flow at the outlet. 3.9 Minimum pressure minimumpressuredifferential When the valve normal operation, inlet and outlet pressure can achieve a minimum difference. 3.10 Pressure characteristics pressurecharacteristics When the valve to work properly, ensure that exports flow under the premise of maximum flow, inlet pressure changes, the outlet pressure and the inlet pressure Functional relationship between. 3.11 Flow characteristics flowcharacteristics When the valve to work properly, ensure the inlet pressure under the premise of the rated working pressure, the flow rate changes, the outlet pressure and flow function relationship. Category 4 4.1 Press valve sensor can be divided into. a) diaphragm valve, represented by the symbol M; b) piston valve, represented by the symbol S; c) other types of valves, represented by the symbol T. 4.2 Press valve works can be divided into. a) pilot valve, represented by the symbol P; b) direct acting valve, represented by the symbol D.

5 model designation

Preparation method is as follows. ZSJF Automatic sprinkler system valve Nominal diameter in millimeters (mm) - □ Sensitive element code Code Works - □ Rated working pressure, in megapascals (MPa) Example. ZSJF100-MP-1.2 represents the nominal diameter of 100mm, rated working pressure of 1.2MPa, the sensitive element is a membrane structure, the pilot valve.

6 Requirements

6.1 appearance quality 6.1.1 The valve should be clearly marked, flat and smooth surface without bumps and scratches processing defects, coating evenly. 6.1.2 The valve should be provided with the outer surface of the permanent signs and symbols which shall comply with the provisions of 9.1. 6.2 Specifications Importers valve nominal diameter of 40mm, 50mm, 65mm, 80mm, 100mm, 125mm, 150mm, 200mm, 250mm, 300mm. 6.3 Rated Operating Pressure Valve rated working pressure should not be less than 1.2MPa. 6.4 Material 6.4.1 body and bonnet shall be not less than the corrosion resistance of cast iron material, seat materials, corrosion resistance can not be less than bronze. The use of seat corrosion below the bronze material, the seating surface for corrosion protection, and should be required to be heated old 7.3 Of the test, the valve and valve seat seal assembly should be no blocking, the seating surface coating should be no loss after the test, and shall conform to 6.6.2, Provisions of 6.7. 6.4.2 Requirements rotating or sliding metal parts shall be bronze, nickel copper alloy, brass, austenitic stainless steel and other corrosion-resistant materials. If the When materials poor corrosion resistance of manufacture, should be added in the relative movement of the bushing member said corrosion-resistant material. 6.5 structural components 6.5.1 Safety relief valve 6.5.1.1 safety relief valve has a valve, safety relief valve should be provided at the outlet side of the valve, which shall not be less than the nominal diameter 15mm. 6.5.1.2 Safety relief valve discharge pressure should be adjusted, the discharge pressure adjustment range should be at least 0.35MPa ~ 1.38MPa between. 6.5.2 Control Valves 6.5.2.1 Control valve control valve piping set to be a wheel or handle, and should be labeled with the permanent switch direction. 6.5.2.2 When the control valve having a valve control switch, the locking means to be provided to its normal position of use. 6.5.2.3 circulation control valve member should be fabricated with materials corrosion resistance of not less than bronze. 6.5.3 pressure adjusting means Pressure relief valve should be set pressure adjusting means adjusting device should be easy to operate and has measures to adjust the position of locking. 6.5.4 Filter Piping and components and valve control chamber is connected, when it is circulating a diameter less than or equal 6mm, should be set filters, filter mesh The maximum size should not exceed 0.6 times the aperture protection, filters should not be less than 20 times the total area of protected areas. 6.5.5 connection 6.5.5.1 When the valve flange connection, flange connection size, flange sealing surface type and size should be consistent with GB/T 17241.6 Or GB/T 9112 regulations. 6.5.5.2 When the valve using grooved, groove dimensions shall comply with the provisions of GB 5135.11. 6.5.5.3 When the valve threaded connection, connecting thread shall comply with GB/T 7306's. 6.5.6 Diaphragm Using the diaphragm as the sensing element of the valve, the diaphragm of the physical properties of the rubber should meet the requirements in Table 1. Table 1. The physical properties of rubber diaphragm parameters Item Unit Index Tensile strength MPa 14 Elongation at break 400% Compression set (70 ℃ × 22h)% 40 Rubber cloth Attachments (tape) Adhesion N/25mm ≥18 Attachments (tape) tearing through the N/25mm 1000 Attachments (tape) Tearing zonal N/25mm 800 Resistance to liquids (water) Change in tensile strength (70 ℃ × 70h) % ≥-20 Resistance to liquids (water) Elongation at break change (70 ℃ × 70h) % ≥-20 6.6 Seal strength 6.6.1 Body strength 7.6 according to the method specified in the strength test, the valve should be no leakage and structural damage. 6.6.2 Sealing Performance 7.7 according to the method prescribed seal test, pressure reducing valve and valve seat seal should be no leakage. 6.6.3 valve strength 7.8 according to the method prescribed strength test carried valve, pressure reducing valve should be no leakage trachoma, damage, permanent deformation and other effects functions. 6.6.4 diaphragm strength Using the diaphragm as the sensing element of the valve, according to the method specified in 7.9 strength test conducted diaphragm, diaphragm valve should be no leakage Leak, tear and other damage affecting functionality. 6.7 Performance Surge According to the test method specified in the regulator 7.10 performance test valve should be working properly, without any jamming or abnormal vibration, pressure Hydrostatic valve lift should not exceed 0.1MPa. 6.8 Performance under reduced pressure 6.8.1 Flow characteristics According to the test method specified in 7.11 for flow characteristics test, valves should be working properly, found the outlet pressure and outlet set pressure Deviation, shall comply with the provisions of Table 2. Table 2 Flow Characteristics deviation classification Setting outlet pressure MPa Found outlet pressure and provided Maximum deviation of pressure Pilot type valve ≤0.5 0.05MPa > 0.5 10% of the set pressure outlet Direct Acting ≤0.5 0.10MPa > 0.5 outlet set pressure 20% 6.8.2 Pressure Characteristics Press Test Method 7.12 predetermined pressure tests of valve should be working properly, found the outlet pressure and the initial pressure outlet Deviation, speaking for the pilot valve should not exceed 5% of the initial outlet pressure, the direct acting valve it should not exceed the initial 10% of the outlet pressure. 6.9 reliability 6.9.1 duty cycle 7.13 according to the method prescribed working cycle test during the test valve should be working properly, no abnormal vibration, springs, diaphragms, etc. Action member function properly, without any damage to the function in. After the test according to the test method specified in 7.7 seal test, the test results should be Comply with the provisions of 6.6.2. 6.9.2 Continuous operation According to the test method specified in 7.14 continuous operation test during the test valve should be working properly, no abnormal vibration, flow fluctuations Or destructive cavitation phenomena.

7 Test methods

7.1 Visual inspection 7.1.1 eye test sample flag case, the recording mark content. 7.1.2 Check the specimen process uniformity, the presence or absence of the test piece mesh processing defects and mechanical damage. 7.2 Measure With a minimum value of not more than 0.1mm gage measured sample connecting member, flow components and filter size, measuring record data. 7.3 heated aging test The valve assembly is in the closed position, the valve assembly should be subjected to 90d of the servo pressure test using immersion methods or other heating water temperature Maintained at (87 ± 2) ℃, after the end of the test, the exhaust valve in the water, cooled to (21 ± 4) ℃, check valve and valve seat seals at Seal Happening. 7.4 Test safety relief valve 7.4.1 Connect the safety relief valve inlet and pressurized equipment, slowly add pressure to the safety relief valve outlet side, the water, then the safety relief Inlet pressure relief valve for pressure. 7.4.2 Adjustment safety relief valve, respectively, it is at the lowest and the highest grade in the discharge pressure adjustment range, the actual test at each grade Discharge pressure. 7.5 Diaphragm test According to GB/T 528, GB/T 1690, GB/T 7759, the provisions of HG/T 2580 respectively tensile strength and elongation at break, resistance to liquid Impregnating, compression set, rubber cloth related test, record test data. 7.6 Body strength test 7.6.1 pilot valve, will be equipped with a sample, and do not withstand the pressure of the parts can be used to replace parts or cut off, closing the valve outlet side, into Port side and pressurized device is connected, in the valve open, the pressure was slowly added to four times the rated working pressure relief valve and keep 5min. Check A sample and check the damage leakage. 7.6.2 direct acting valve, will be equipped with a sample, and do not withstand the pressure of the parts can be used to replace parts or cut off, and the valve inlet side Port side are connected with pressurized equipment, valve closed, the valve outlet side filled with twice the specified maximum export enterprises set pressure of the hydrostatic pressure on the inlet side Charged with four times the rated working pressure relief valve hydrostatic pressure to keep leakage damage 5min, check the sample. 7.7 Sealing test 7.7.1 through the control valve means may close or adjust the valve pressure relief valve, the sample was adjusted to the closed state, the sample outlet side Through the atmosphere, the inlet side of pressurized device is connected, the water pressure was slowly added to 2 times the rated working pressure valve to maintain 5min, check the valve seat and the sample Valve leakage at the seals. The outlet side of 7.7.2 shall be designed for filling pressure reducing valve, the sample was adjusted to the closed state, closing the outlet side of the sample and applying the provisions of the Enterprise Small outlet set pressure, the inlet side of pressurized equipment is connected, slowly add pressure to the inlet and outlet of the pressure relief valve to 2 times the rated working pressure Force to maintain 5min, check the case samples boost exports, if the booster seat and valve seal leakage. 7.8 valve strength test Direct acting valve, will be equipped with a good sample, the valve inlet side through the atmosphere, the outlet side of the device connected to pressurized, in the case of the valve is closed , The pressure was slowly added to 2 times the maximum outlet set pressure relief valve and keep 5min. During the test, the sample is damaged Check for leaks Happening. 7.9 diaphragm strength test 7.9.1 pilot valve, will be equipped with a good sample, the valve inlet and outlet side through the atmosphere, an inlet chamber connected to the charge control device, slowly add pressure To 2 times the rated working pressure of the valve hydrostatic pressure, to maintain 5min. During the test, leak check the sample damage. 7.9.2 direct acting valve, according to the test method specified in 7.8 were tested. 7.10 Surge Test 7.10.1 shown in Figure 1, the specimens were correctly installed in the test pipeline. 7.10.2 In the case of open solenoid valve 6, regulating the inlet and outlet control valve control valve 5, so that the test valve inlet pressure is 3 Rated operating pressure, pipeline flow valve of starting flow. 7.10.3 regulating pressure relief valve adjusting device, the outlet pressure at the outlet business setting maximum and minimum predetermined pressure range Changes between consecutive, repeated twice, the recording observe the situation. 7.10.4 guarantee under the rated working pressure of the inlet valve of the premise, slowly closing the outlet valve 5, so that pipeline flow variations from the starting flow 0, Record the outlet pressure, the test was repeated three times, averaged, measured static pressure rise. Explanation. 1 --- inlet control valve; 2 --- inlet pressure gauge; 3 --- test valve; 4 --- outlet pressure gauge; 5 --- outlet control valve; 6 --- solenoid valves; 7 --- solenoid valve control and counting device. Figure 1 valve schematic Comprehensive Test 7.11 Flow characteristics 7.11.1 shown in Figure 1, the specimens were correctly installed in the test pipeline. 7.11.2 In the case of open solenoid valve 6, regulating the inlet and outlet control valve control valve 5, so that the test valve inlet pressure is 3 Rated operating pressure, pipeline flow valve initiating flow adjustment valve, the outlet pressure to export enterprises specified minimum set pressure. 7.11.3 guarantee under the rated working pressure of the inlet valve premise open outlet control valve 5, the pipe flow at a predetermined maximum flow business Varies between 20% to 100% of the amount, at least five groups at different outlet pressure and outlet flow of the set pressure deviation records. 7.11.4 After the completion of the trial, at the starting flow regulator outlet pressure is adjusted to set the maximum outlet pressure on companies to retry Test 7.11.1 ~ 7.11.3 regulations. 7.12 pressure properties 7.12.1 shown in Figure 1, the specimens were correctly installed in the test pipeline. 7.12.2 In the case of open solenoid valve 6, regulating the inlet and outlet control valve control valve 5, so that the test valve inlet pressure is 3 Rated working pressure, maximum flow conduit flow business regulations, while adjusting valve so that the initial pressure of export enterprises specified minimum Outlet set pressure. 7.12.3 maintaining pipeline flow is the maximum flow rate specified in the enterprise, so that the relief valve inlet pressure of 80% to 105% of its rated working pressure Between changes in at least five groups deviation between the measured initial outlet pressure inlet pressure outlet pressure under different recording. 7.12.4 After the completion of the test, the maximum flow rate under a predetermined pressure reducing valve corporate initial outlet pressure is adjusted to a predetermined maximum out enterprise Mouth set pressure, re-test 7.12.1 ~ 7.12.3 regulations. 7.13 duty cycle test 7.13.1 shown in Figure 1, the specimens were correctly installed in the test line. 7.13.2 In the case of open solenoid valve 6, regulating the inlet and outlet control valve control valve 5, so that the test valve inlet pressure is 3 Rated working pressure, outlet pressure for export enterprises to set any value within a predetermined pressure range, and pipeline flow valve most 20% Large Flow. 7.13.3 electromagnetic valve open control and counting device, the solenoid valve is closed to an open loop, to ensure that the test enable or disable the solenoid After the valve to the next cycle after the outlet side pressure is stable, the test 5000. 7.14 continuous operation test 7.14.1 shown in Figure 1, the specimens were correctly installed in the test line. 7.14.2 6 normally open solenoid valve, control valve regulating the inlet and outlet control valve 5, so that the test pressure relief valve inlet 3 for the rated working pressure Force, the outlet pressure is the minimum export enterprises predetermined set pressure, and pipeline flow valve maximum flow rate of 20%, continuous operation 90min. 7.14.3 6 normally open solenoid valve, control valve regulating the inlet and outlet control valve 5, so that the test pressure relief valve inlet 3 for the rated working pressure Force, the outlet pressure of the largest export enterprises predetermined set pressure, and flow rate of the pipeline valve maximum flow, continuous operation 90min.

8 Inspection Rules

8.1 Inspection classification project 8.1.1 Type inspection 8.1.1.1 When one of the following conditions, type of inspection should be carried out. a) identification of new product trial when stereotypes; b) After officially put into operation, such as a significant change in processing methods of product structure, materials, processes, the key processes when; c) the quality of major accidents; d) Product Discontinuance more than one year, the production recovery; e) continuous production for three years; f) quality supervision agency when requested. 8.1.1.2 Product type test items shall be specified in Table 3. 8.1.2 factory inspection Delivery inspection items should include at least the items specified in Table 3. Table 3 type test items, factory inspection items and substandard category Inspection items and contents Type examination Test project Factory inspection project failed category A full inspection sampling Class B Appearance quality (6.1) ★ ★ - - ★ Specifications (6.2) ★ ★ - ★ - Rated working pressure (6.3) ★ ★ - ★ - Materials (6.4) ★ ★ - ★ - structure part Safety relief valve (6.5.1) ★ ★ - - ★ Control valve (6.5.2) ★ ★ - - ★ Pressure adjusting means (6.5.3) ★ ★ - ★ - Filter (6.5.4) ★ ★ - - ★ Connection (6.5.5) ★ ★ - ★ - Diaphragm (6.5.6) ★ - ★ ★ - strength seal Body strength (6.6.1) ★ - ★ ★ - Sealing performance (6.6.2) ★ ★ - ★ - Clapper strength (6.6.3) ★ - ★ ★ - Diaphragm strength (6.6.4) ★ - ★ ★ - Surge Performance (6.7) ★ ★ - ★ - stress reliever performance Flow characteristics (6.8.1) ★ - ★ ★ - Pressure characteristics (6.8.2) ★ - ★ ★ - jobs reliability Duty cycle (6.9.1) ★ - ★ ★ - Continuous operation (6.9.2) ★ - ★ ★ - 8.2 Sampling Method 8.2.1 Type test random sampling in the factory inspection qualified products, the sampling base of not less than four, the number of samples is two. 8.2.2 factory inspection of all seized items subject to examination by one; the sample extraction sampling program as per 20, each batch of random sample Number 2; also 2 sets of extraction when the number of samples is less than 20 units. 8.3 Test Procedure Valve test procedure conducted in accordance with Figure 2. Explanation. 6.1 --- appearance quality; --- 6.2 specification; 6.3 --- rated working pressure; 6.4 --- Materials; 6.5 --- structural components; 6.6 --- strength of the sealing; 6.7 --- regulator performance; 6.8 --- reduced pressure characteristics; 6.9 --- reliability. 2 Test flowchart of FIG. 8.4 test results to determine 8.4.1 Type inspection Valve type testing determines if one of the following occurs when the product is defective, otherwise judged as qualified. a) A category appeared project failed; b) Class B non-conformities appear greater than or equal to 2. 8.4.2 factory inspection Valve factory inspection items are all qualified, qualified product batch. Full inspection found substandard project should be directed to rework it until it closes grid. There is a class A sampling project failed, then the product is substandard; if Class B failed, allowing redouble our sample, all together Georgia may ...

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