Urgently need the standard number or drawing number for the online emergency shut-off valve

Where has the expert gone? Why hasn’t anyone given any suggestions yet?

The BY-850P you mentioned is a valve model, not a standard number or a drawing number. First, the valve needs to be selected, and then a model will naturally be available.

Safety shut-off valves can be found by searching online.

JB/T9094-1999 Standard title: Technical requirements for emergency shut-off valves used in liquefied petroleum gas equipment

Up to now, no one has been able to give me a satisfactory answer

Is it this standard: JB/T 9094－1999 Technical specifications for emergency shut-off valves used in LPG equipment. Emergency shutoff valve for LPG equipment —Technical specification. Published on 1999-07-12, implemented on 2000-01-01. Issued by the National Machinery Industry Bureau. www.bzxzw.com. Preface: This standard is a revision of ZB J16 008—1990 “Technical specifications for emergency shut-off valves used in LPG equipment”. The main technical differences between this standard and ZB J16 008—1990 are as follows: 1. The structure, technical elements, and expression rules of the standard have been revised in accordance with GB/T 1.3—1997 ； 2. In the technical requirements of ZB J16 008—1990, in the formula for calculating the minimum wall thickness of the valve body, the numerator P(dt–2c) within the parentheses should be changed to P(dt+2c) ； 3. The material of the pilot valve, 1Cr18Ni9, shall be replaced with stainless steel or carbon steel coated with nickel-phosphorus on its surface ； 4. The over-temperature shutdown temperature has been changed from 70±5°C to 75°C±5°C, based on the temperature of the valve itself℃ ； 5. The test pressure and test methods for shell tests have been changed from those specified in GB 4981 to those specified in GB/T 13927 ； 6. For the melting test of the fusible element, the melting temperature of 70±5°C has been changed to 75°C±5°C. This standard shall replace ZB J16 008—1990 simultaneously as of the date of its implementation. This standard was proposed and is under the jurisdiction of the National Valve Standardization Technical Committee. The drafter of this standard is Beijing Valve Research Institute. Main drafter of this standard: Lu Peiwen. JB/T 9094－1999 1 1 Scope This standard specifies the general technical requirements, testing methods, inspection rules, marking, and delivery requirements for emergency shut-off valves and overflow valves. This standard applies to emergency shut-off valves and flow control valves used in liquefied petroleum gas storage and transportation equipment, as well as to emergency shut-off valves and flow control valves used in liquid ammonia storage and transportation equipment. 2 Referenced Standards The provisions contained in the following standards become part of this standard by being referenced herein. At the time of publication of this standard, all versions indicated are valid. All standards will be revised, and those using this standard should consider the possibility of adopting the latest versions of the following standards. GB/T 699—1988 High-quality carbon structural steel – Technical requirements; GB/T 1220—1992 Stainless steel bars; GB/T 4240—1993 Stainless steel wires; GB/T 9113.1~9113.26—1988 Integral steel pipe flanges; GB/T 12220—1989 General valves – Marking; GB/T 12228—1989 General valves – Technical requirements for carbon steel forgings; GB/T 12229—1989 General valves – Technical requirements for carbon steel castings; GB/T 13927—1992 General valves – Pressure testing; JB/T 6697—1993 Basic technical requirements for electrical equipment in tractors; JB/T 7748—1995 Cleanliness of valves and methods for its determination; JB/T 7928—1999 General valves – Supply requirements; JB/T 7927—1999 Valve castings – Requirements for visual quality; 3 Terms; 3.1 Emergency shut-off valve: A valve installed on tank cars, storage tanks, or pipelines, which can be quickly closed manually or automatically in the event of an accident. 3.2 Overflow valve: A valve that closes automatically when the pressure difference caused by the flow rate of the medium in the pipeline exceeding the rated value. 3.3 Rated flow: The maximum flow rate that can pass through before the overflow valve closes automatically. 3.4 Shut-off time **Approved by the Machinery Industry Bureau on 1999-07-12. Standard for machinery industries of the People’s Republic of China: Technical specifications for emergency shut-off valves used in LPG equipment. Emergency shutoff valve for LPG equipment —Technical specification JB/T 9094－1999, replacing ZB J16 008—90. Implemented as of 2000-01-01. JB/T 9094－1999: 2. The time, in seconds, elapsed from when the operator initiates the operation to when the fluid flow is stopped, when the emergency shut-off valve closes via hydraulic or pneumatic force. 3.5 Built-in emergency shut-off valve, with the main part located inside the tank. 3. 6 External – Emergency shut-off valves installed on the flange outside the tank or on the pipelines. 4 Classification 4.1 Structural form 4.1.1 The structural form of the emergency shut-off valve for pipelines is shown in Figure 1. 4.1.2 The structural forms of the emergency shut-off valves for automotive tank trucks are shown in Figures 2 and 3. 4.1.3 The structural form of the emergency shut-off valve for railway tank cars is shown in Figure 4. 4.1.4 The structural forms of the emergency shut-off valves for spherical tanks are shown in Figures 5 and 6. Figure 1 JB/T 9094－1999 3 JB/T 9094－1999 4 JB/T 9094－1999 5 Figure 6 4.2 The method for specifying the model of emergency shut-off valves is as follows: Model specification method Nominal pressure Valve body type Installation method Connection method Actuation method Type Material of the valve sealing surface JB/T 9094－1999 6 Type code Simple emergency shut-off valve: QD Combination of emergency shut-off valve and flow-limiting valve: QG Combination of emergency shut-off valve, flow-limiting valve, and globe valve: QGJ Combination of emergency shut-off valve, flow-limiting valve, and ball valve: QGQ Code for actuation method Hydraulic: Y Mechanical: J Pneumatic: q Code for connection type Flange: 4 Quick-connect fitting: 5 Code for installation type Built-in: 1 External: 2 Code for valve body type Straight-through: 1 Angle-type: 3 Code for material of the valve sealing surface Nylon plastic: N Fluoroplastic: F Alloy steel: H 5 Technical requirements 5.1 Parameters 5.1.1 The maximum operating pressure of the valve is the design pressure of the tank, as specified in Table 1. Table 1: Types of filling media in MPa, nominal pressure PN, maximum operating pressure. Propylene: 2.5, 2.20; Propylene 2.5: 1.80; Butane: 1.6, 1.10; Butene: 1.6, 1.10; Butadiene: 1.6, 1.10; Mixed gases primarily composed of butane and propane, with a butane content of 70% (mole%) or more: 1.6, 1.10. JB/T 9094–1999: 7, 5, 1, 2. The operating temperature of the valve is –40~+50°C. 5.2 Valve body 5.2.1 The minimum wall thickness of the valve body is calculated using the following formula: c p t p d c + - + = ] 2 1.2 1.5 – The allowable tensile stress of the material at normal temperature, in N/mm2 ； dt —— Valve inlet diameter, mm ； c — additional margin, in mm, determined by the designer; a value of 1–3 mm can be used. 5.2.2 The dimensions of flange connections shall comply with the provisions of GB/T 9113.1~9113.26. 5.3 Materials The materials used for emergency shut-off valves must be resistant to corrosion by liquefied petroleum gas as well as low temperatures of –40°C ； Copper is not allowed as a material for emergency shut-off valves used with liquid ammonia. 5. 3.1 Carbon steel castings shall comply with the provisions of GB/T 12229. 5. 3. 2 Carbon steel forgings shall comply with the provisions of GB/T 12228. 5.3.3 The pilot valve shall be made of stainless steel and meet the requirements of GB/T 1220; its surface shall undergo heat treatment ； It can also be made of carbon steel, and shall comply with the provisions of GB/T 699; its surface shall be plated with nickel-phosphorus ； Its surface hardness is not less than HV 874. 5. 3. 4 Helical compression springs in contact with media shall be manufactured from 1Cr18Ni9 and shall comply with the provisions of GB/T 4240. 5.3.5 The fusible alloy used in the fuse plug must ensure melting at 75°C ± 5°C ； Its chemical composition shall comply with the provisions in Table 2. Table 2 Bi Pb Sn Cd 50% 25% 12.5% 12.5% 5. 3. 6 O-rings should be made of materials resistant to liquefied petroleum gas or liquid ammonia. 5.4 Performance Requirements 5.4.1 Sealing Performance The test pressure shall be 0.1 MPa for each application as well as the maximum operating pressure; the test medium shall be air (or nitrogen), and the leakage rate shall not exceed 2×DN mL/min. 5. 4. 2 Performance of the overcurrent shut-off valve: When the flow rate of the medium at the valve’s outlet reaches the rated flow rate, the valve should close automatically; the allowable error for the rated flow rate is within ±10%. 5. 4. 3 The shutdown time shall be in accordance with the provisions of Table 3. Table 3 Nominal diameter DN (mm), shut-off time (s): ≤50, ≤10, 65–100, ≤15. JB/T 9094–1999: 8, 5, 4, 4. Vibration resistance: The vibration resistance of emergency shut-off valves for tank trucks is in accordance with the provisions for “products of other types” in JB/T 6697–1993. 5. 4. 5 Over-temperature shutdown performance: The emergency shut-off valve shall ensure automatic shutdown when its temperature reaches 75°C ± 5°C. 5. 4. 6 Natural closing performance: For valves that are opened and closed by hydraulic or pneumatic pressure, they should be able to remain fully open for 48 hours without closing naturally. 5. 4. 7 Repeated operation performance: It should be able to open and close 2000 times in no-load condition to meet the factory-specified performance requirements. 6 Test Methods 6.1 Shell Testing 6.1.1 The test pressure and test methods shall comply with the provisions of GB/T 13927. 6.1.2 The test duration shall be in accordance with the provisions of Table 4. Table 4 Nominal diameter DN mm ≤50 65~200 ≥250 Test duration min 1/4 1 3 6.2 External leakage test 6.2.1 The test pressure is the maximum operating pressure. 6.2.2 The test medium is air or nitrogen. 6.2.3 During testing, the valve shall be in the open position with the outlet end closed; pressure is applied from the inlet end. The connection seals of components such as the plug, horizontal shaft, valve body, and valve cover must not leak. 6.2.4 The test duration shall be in accordance with the provisions of Table 5. Table 5 Nominal diameter DN mm ≤50 65~200 250~450 ≥500 Test duration min 1/4 1/2 1 2 6.3 Airtightness test 6.3.1 The test pressures are 0.1 MPa and the maximum operating pressure respectively. 6. 3. 2 The test medium is air or nitrogen. 6.3.3 During testing, the valve is in a closed state, and pressure is introduced from the inlet; the total leakage rate at the sealing surfaces of both the pilot valve and the flow control valve must not exceed the values specified in 4.4.1. 6. 3. 4 The test duration shall be in accordance with the provisions of Table 5. 6.4 Operation test: Apply a test pressure equal to the maximum operating pressure using oil or air in the direction of medium flow; once the emergency shut-off valve begins to operate, it must close within the time specified in Table 3. JB/T 9094－1999 9 6.5 Overcurrent performance test 6.5.1 The test medium is water, oil, or air. 6.5.2 During testing, the valve is in the open position, and the medium is introduced from the inlet side; once the rated flow rate is reached, the flow control valve should close automatically. 6.5.3 The allowable error in rated flow rate is within ±10%. 6.5.4 The overcurrent test system is shown in Figure 7. 1—Relief valve ； 2—Centrifugal pump ； 3—Voltage stabilizing tank ； 4, 6, 8—Valves ； 5—Turbine flow meter ； 7—Subject isolation valve ； 9, 10, 11—Gauge pressure charts. Figure 7: 6.6 Natural closing test. For emergency shut-off valves that are operated by hydraulic or pneumatic pressure, once the valve is opened to stop the supply of oil to the hydraulic system, it must meet the requirements specified in 4.4.6. 6.7 Vibration testing 6.7.1 With the valve in the closed position, conduct vibration testing in accordance with the provisions for \"products of other types\" in JB/T 6697—1993. 6. 7.2 After undergoing vibration testing, the valves shall be inspected externally; the components should show no damage, and the fasteners should not be loose. The inspection according to the factory specifications shall yield satisfactory results. 6.8 Repeated operation test: The valve is subjected to repeated operation tests under no-load conditions; after 500, 1000, 1300, 1600, 1800, and 2000 operations, it shall meet the requirements specified in the factory inspection criteria. 6.9 Melting test of fusible elements: The fusible elements of the emergency shut-off valve shall melt properly at 75°C ± 5°C, using the testing apparatus shown in Figure 8. During the test, the liquid inside the device should be stirred frequently, with its temperature rising by an average of 1°C every 2–3 minutes, gradually approaching the specified temperature. 1—Heat source ； 2—Steel pipe ； 3—Water or oil ； 4—Test substance ； 5—Internal pressure control valve ； 6—Thermometer ； 7—Stirring rod Figure 8 JB/T 9094－1999 10 7 Inspection rules 7.1 Factory inspection 7.1.1 Each valve must undergo factory inspection, and it may be released only after all inspection items have passed. 7.1.2 The factory inspection items, technical requirements, and inspection methods shall be in accordance with the provisions of Table 6. Table 6 Inspection Categories, Inspections, and Tests
Inspection Items, Factory Inspection, Type Inspection
Technical Requirements, Methods
Housing Test √ √ In accordance with 5.1 of GB/T 13927
External Leakage Test √ √ In accordance with 5.2
Airtightness Test √ √ In accordance with 5.3
Operation Test √ √ In accordance with 5.4
Overcurrent Performance Test √ √ In accordance with 5.5
Natural Closing Test — √ In accordance with 5.6
Vibration Test — √ In accordance with 5.7 of JB/T 6697
Repetitive Operation Test — √ In accordance with 5.8
Fusible Element Melting Test — √ In accordance with 5.9
Minimum Wall Thickness of Valve Body — √ In accordance with 4.2.1, Conventional Measuring Tools
Marking √ √ In accordance with 7.1, Visual Inspection
Internal Cavity Cleanliness Check — √ —
JB/T 7748, Visual Inspection √ √ —
JB/T 7927
7.2 Type Inspection
7.2.1 Type inspection shall be carried out in any of the following situations:
a) During the trial production and evaluation of new products or when old products are transferred to another manufacturing facility ； b) During formal production, this inspection should be carried out periodically or after a certain volume of production has been achieved ； c) During formal production, if there are significant changes in the structure, materials, or manufacturing processes that could affect the product’s performance ； d) When resuming production after a long period of suspension of production ； e) When there are significant differences between the factory inspection results and those of the previous type inspection ； f) When the quality supervision agency issues requirements for type inspection. 7. 2. Sampling inspection is adopted for type inspection. The test samples can be randomly selected from the inventory products that have passed inspection by the quality control department of the manufacturer, or from the products that have been supplied to users but not used and remain in their original factory condition. The minimum batch size and number of samples to be taken for each specification are specified in Table 7. For user sampling, the minimum batch size for sampling is not subject to the restrictions in Table 7; however, the number of samples to be taken remains as specified in Table 7. Table 7 Nominal diameter DN (mm), minimum number of units to be sampled: for DN ≤100, the number is 20; for other values, it is 3. The type inspection items, technical requirements, as well as testing and inspection methods are in accordance with the provisions in Table 6. JB/T 9094－1999 11 7.2.4 In the type inspection, the results of the shell test, external leakage test, and airtightness test for each valve under inspection must meet the corresponding technical requirements specified in Table 6. If for any one of the other inspection items a valve fails to meet the technical requirements in Table 6, it is permissible to select an additional specified number of valves from those available for sampling and conduct further tests; in this case, the results of all inspection items must meet the requirements specified in Table 6, otherwise the valve shall be deemed unqualified. 8 Markings: The markings shall comply with the provisions of GB/T 12220. 9 Supply requirements: The supply requirements shall comply with the provisions of JB/T 7928. JB/T 9094－1999 Standard of the Machinery Industry of the People’s Republic of China – Technical Requirements for Emergency Shutoff Valves for Liquefied Petroleum Gas Equipment JB/T 9094－1999 * Published by the Institute of Mechanical Science; printed by the Institute of Mechanical Science (No. 2 South Shouti Road, Beijing, Postal Code 100044) * Format: 880×1230, 1/16; Number of printing sheets: 1; Word count: 24,000. First edition published in November 1999; first printing also in November 1999. Print run: 1–500 copies. Price: 10.00 yuan. Catalog number: 99－1055. Machinery Industry Standards Service Website: http://www.JB.ac.cn