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GBZ32458-2015 English PDF

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US$694.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GBZ32458-2015: Centrifugal pumps handling viscous liquids -- Performance corrections
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/Z 32458-2015	694	Add to Cart	4 days	Centrifugal pumps handling viscous liquids -- Performance corrections	Valid

Similar standards

JB/T 6879 GB/T 7782 JB/T 13977 GB/T 45819 GB/T 13929

Basic data

Standard ID: GB/Z 32458-2015 (GB/Z32458-2015)
Description (Translated English): Centrifugal pumps handling viscous liquids -- Performance corrections
Sector / Industry: National Standard
Classification of Chinese Standard: J71
Classification of International Standard: 23.080
Word Count Estimation: 35,395
Date of Issue: 2015-12-31
Date of Implementation: 2016-07-01
Adopted Standard: ISO/TR 17766-2005, IDT
Regulation (derived from): State Standard Announcement 2015 No.43
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Summary: This standard specifies all the ordinary centrifugal pump (hereinafter referred to as "pump") conveying viscous liquid performance correction when the technical method. This standard applies to single-suction or double-suction pumps with open or closed impellers that deliver Newtonian fluid in the normal operating range.

GBZ32458-2015: Centrifugal pumps handling viscous liquids -- Performance corrections

---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.
Centrifugal pumps handling viscous liquids.Performance corrections ICS 23.080 J71 People's Republic of China national standardization of technical guidance documents Centrifugal pump to deliver viscous liquid (ISO /T R17766.2005, IDT) 2015-12-31 release 2016-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Foreword Ⅲ 1 Scope 1 2 symbols and abbreviations 1 3 summary 2 4 Overview 3 5 basic methods 3 6 American Hydraulics Society Summary of Methods 5 Further theoretical explanations 8 Other precautions 23 Appendix A (informative) kinematic viscosity unit conversion 25 References 27

Foreword

Pump in the selection is generally based on the performance of the pump to send water to choose when the actual delivery of the pump is a wide range of liquid, Body viscosity is also different, which will have a certain impact on the safe operation of the pump. This instructional document provides water delivery by design Centrifugal pump in the delivery of viscous liquid performance correction method used to guide the pump pre-selection and performance conversion. This instructional document has been drafted in accordance with the rules given in GB/T 1.1-2009. This guideline uses translation methods equivalent to ISO /T R17766.2005 "Performance of Centrifugal Pumps for the Delivery of Viscous Liquids Positive "(English version). For ease of use, the following technical editorial changes have been made in this guide. --- "r/min" instead of "rpm" as the speed unit; --- In the "symbols and abbreviations" added "Note 2. According to our habits, when calculating the ratio should be multiplied by the coefficient 3.65." Tips Sexual description --- The original standard formula "log" changed to "lg". This guideline is for reference only. The suggestions and opinions on this technical document may be referred to the standardization administrator of the State Council Management reflects. This guidance document is proposed by China Machinery Industry Federation. This Guidance Document is subject to the National Standardization Technical Committee for Pumps (SAC/TC211). The drafting of the guidance of technical documents. Dalian Sifang Electric Pump Co., Ltd., Shanghai KSB Pump Co., Co., Ltd., Hefei new Shanghai shield Pump Co., Ltd., Hunan Tianyi Aoxing Pump Co., Ltd., Jiangsu Wuxin Pump Co., Ltd., Yantai Longgang Corrosion Eclipse Pump Co., Ltd., Kunming Jiahe Technology Co., Ltd., Zhejiang Leo Co., Ltd., Hefei Hua Sheng valve limited liability company, Taizhou City Product Quality Supervision and Inspection, Zhejiang Tongtai Pump Co., Ltd., Zhejiang Hua Pump Technology Co., Ltd., Shenyang Pump Institute. The main drafters of this technical guidance in the ocean, Pan Zaibing, Qu King Tin, Wang Guoliang, Li Xichun, Liu Jinkun, Sui Jun sword, Zhao Jun, Yang Guifeng, Wu Jianbo, Sun Bing, Qu Jun, Chen Qian, Dong Qin Min. Centrifugal pump to deliver viscous liquid

1 Scope

This technical note provides technical solutions for the performance correction of all common centrifugal pumps (hereinafter referred to as "pumps") for the transport of viscous liquids. This guidance applies to single or double suction pumps with open or closed impellers that deliver Newtonian fluid over the normal operating range.

2 symbols and abbreviations

The symbols and definitions used in this technical paper are as follows. 1). 1) The industry abbreviation NPSHR used in the operation symbols NPSHRBEP-W and NPSHRW in this guidance document has been replaced by ISO /TC115/SC3 permit. A --- used to calculate the corrected necessary NPSH inhalation geometry variables. B --- viscosity correction process parameters, parameter B is used to regulate the pump Reynolds number and adjust the pump to modify the specific speed. BEP --- the best efficiency point (at the specified speed at the highest pump efficiency flow and lift). Cη --- efficiency correction factor. Cη-RR --- Efficiency correction factor due to disc friction loss. CH --- head correction factor. CBEP-H --- water pump at the most efficient flow point head correction factor. CNPSH --- NPSH correction factor. CQ --- flow correction factor. d2 --- impeller outlet diameter, m (ft). g --- Gravitational acceleration, m/s2 (ft/s2). H --- single-stage head, m (ft). HBEP-vis --- viscous head, when delivering viscous liquid, the single-stage lift obtained in the best efficiency flow point pump, m (ft). HBEP-W --- head of water, single-stage lift obtained at the pump's best efficiency flow point when delivering water, in m (ft). HL --- hydraulic loss, m (ft). Hth --- theoretical lift (no loss of flow), m (ft). Hvis --- viscous head, single-stage head when delivering viscous liquid, m (ft). Hvis-tot --- viscous head, when the viscous liquid pump delivery total head, m (ft). HW --- water when the head, when the water delivery single-stage head, m (ft). N --- pump shaft speed, r/min. NS --- Specific rotation, (USCS unit). NS = NQ0.5BEP-W H0.75BEP-W ns --- specific rotation, (metric units). ns = NQ0.5BEP-W H0.75BEP-W The specific impeller rotation is defined as a geometrically similar impeller capable of discharging 1 cubic meter per second (m3/s) with a head of 1 meter (metric Unit) or 1 gallon (US) per minute at a lift of 1 foot (USCS units) per minute. These units should be used to calculate the ratio ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GBZ32458-2015_English be delivered?

Answer: Upon your order, we will start to translate GBZ32458-2015_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GBZ32458-2015_English with my colleagues?

Answer: Yes. The purchased PDF of GBZ32458-2015_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 Sales@ChineseStandard.net. 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.