Path: Home > GB > Page57 > GB 26788-2011 Home > Standard_List > GB > Page57 > GB 26788-2011

GB 26788-2011 English PDF

US$159.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB 26788-2011: [GB/T 26788-2011] The general safety regulations of elasticity pressure gauge
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB 26788-2011	English	159	Add to Cart	2 days [Need to translate]	[GB/T 26788-2011] The general safety regulations of elasticity pressure gauge	Valid	GB 26788-2011

PDF similar to GB 26788-2011

Standard similar to GB 26788-2011

GB/T 22065 GB/T 20730.2 GB/T 19146 GB 26787 GB/T 45358 GB/T 19665

Basic data

Standard ID	GB 26788-2011 (GB26788-2011)
Description (Translated English)	[GB/T 26788-2011] The general safety regulations of elasticity pressure gauge
Sector / Industry	National Standard
Classification of Chinese Standard	N11
Classification of International Standard	17.100
Word Count Estimation	6,692
Date of Issue	2011-07-29
Date of Implementation	2011-12-01
Regulation (derived from)	Announcement of Newly Approved National Standards No. 12 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 specifies the elastic pressure gauge in regard to the use of safety protection with performance requirements, test methods and decision rules. This standard applies to the spring tube (including the spiral spring tube, coil spring tube and C-shaped tube), diaphragm, bellows and bellows mechanical pressure gauge pointer (hereinafter referred to as instrumentation).

GB 26788-2011: [GB/T 26788-2011] The general safety regulations of elasticity pressure gauge

---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.
The general safety regulations of elasticity pressure gauge ICS 17.100 N11 National Standards of People's Republic of China Elastic pressure gauge general safety regulations Issued on. 2011-07-29 2011-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

2.4 This standard is recommended, the rest are mandatory. Appendix A of this standard is an informative annex. The standard proposed by China Machinery Industry Federation. The standard measurement and control by the National Standardization Technical Committee of industrial processes. This standard by the Xi'an Institute of Industrial Automation Instrumentation drafted. Participated in the drafting of this standard. Hongqi Instrument (Changxing) Co., Leier Da Instrument Co., Ltd., Ningbo Long welding technology shares have Limited, Anhui Rand Group Co., Ltd., Zhejiang Phouesay Xun Instrument Co., Ltd., Ningbo Jiangbei Xingda Welding pressure reducer plant. The main drafters of this standard. Luo Juan, Liuyao Wu, Hu travel, Wang Fang high. Elastic pressure gauge general safety regulations

1 Scope

This standard specifies the elastic pressure gauge in ensuring safe use with regard to performance requirements, test methods and decision rules. This standard applies to the spring tube (including the helical spring tube, coil spring tube and C-shaped tube), diaphragm, bellows and bellows mechanical pointer pressure Force Table (hereinafter referred to as the instrument).

2 Requirements

2.1 Fatigue After the instrument under alternating load test specified in Table 1, there should be no leakage. Table 1 Measurement limit MPa Alternating load frequency alternating frequency alternating amplitude ≤2.5 100000 > 2.5 ~ ≤60 50000 > 60 ~ ≤160 25000 60 beats/min ± 5 beats/min Or 30 times/min ± 5 beats/min Measuring limit (30 ± 5)% ~ (60 ± 5)% (Total amplitude alternating shall not be less than 30% of full scale value) 2.2 Overvoltage Instrumentation withstand load values specified in Table 2, to maintain 15min, there should be no leakage. Table 2 MPa Static load limit of the measuring value ≤10 1.5 times the measurement limit > 10 ~ ≤60 1.3 times the upper limit of measurement > 60 ~ ≤160 1.2 times the upper limit of measurement Note. There are no corresponding standard overpressure performance requirements of the product may not be required. 2.3 pressure relief function To have a pressure relief function of the instrument, when the elastic element rupture, should be able to timely release of pressure accumulated inside the case, does not cause the watch glass flying. Table 2.4 Security Advice Safe use of the instrument required notes in Appendix A.

3 test

3.1 Test conditions Test Ambient temperature. (20 ± 5) ℃. 3.2 Test apparatus a) produce sinusoidal alternating load equipment. b) meet the requirements of the parameters in Table 2 overpressure test bench. The test stand should be protective devices to protect the safety of test personnel. c) means to produce an instantaneous release of pressure, the device should have a splash-proof protection. 3.3 Sampling Randomly selected four gauges used as test instrumentation, this mother of not less than 20. 3.4 Test Method 3.4.1 Test sequence and time interval No listed in sequence between the two test fatigue test and overvoltage, but the time between two test intervals of not less than 4h. Relief work Finally, the test should be able to. 3.4.2 Fatigue Test The instrument is mounted on alternating load test equipment, according to the parameters specified in 2.1 fatigue tests. 3.4.3 overpressure test Installing the instrument in the overpressure test bench, give the instrument plus the measurement limit load, static pressure 12h, then press into a predetermined parameter 2.2 Line overpressure test. 3.4.4 Test pressure relief function The instrument is mounted on the instantaneous pressure release device, so that the gas gathering energy E = pV, then suddenly the exhaust gas inside the case. On p --- gauge measurement limits, if the measurement is less than the upper limit 6MPa, then take 4MPa; greater than 10MPa, then take 10MPa. V --- spring gas pipes and fittings for internal capacity approximation. 3.5 determine the rules 4 meter, if one does not comply with a provision of 2.1,2.2,2.3, then this batch of product failure; only each instrument Each pilot project are qualified, this batch of products before judgment for qualified products.

Appendix A

(Informative) Safety Recommendations Table A.1 For security, we recommend users to choose the gauge with a pressure relief function. A.2 gauge the impact strength of the weld welding, solder subject; connection effect of temperature, strength and corrosion by the media, should be used Consider these factors. A.3 for vibration-resistant oil-filled pressure gauges, glycerin or silicone oil if filling, should avoid the use of strong oxidants environment from potential hazards of Chemical reaction caused by the explosion. A.4 connection between the pressure and the elastic member, it is recommended to place the limiter, which can help control the escape of gas, to reduce the risk. A.5 do not advocate a gauge used for other purposes in some occasions later. If you must use this, it should consider its chemical compatible , Part fatigue and corrosion. When A.6 When the working pressure medium is corrosive, in consultation with the manufacturer, and select the appropriate elastic member joint device material.

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB 26788-2011_English be delivered?

Answer: Upon your order, we will start to translate GB 26788-2011_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB 26788-2011_English with my colleagues?

Answer: Yes. The purchased PDF of GB 26788-2011_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.