软管内径确定方法(PARKER)
软管及总成的表示方法
软管及总成的表示方法一、DN值及DASH/SIZE值概念DN值是德国DIN标准所规定的软管标定尺寸，即软管的公称内径尺寸（毫米）。
例如DN值为10的软管即表示该软管的公称内径尺寸为10毫米。
DASH值也叫SIZE值，为美国SAE标准所规定的软管标定尺寸。
它是软管或接头规格尺寸（英寸）的缩写，实际上是省略了分母16的分子数。
例如一个DASH值为04的规格尺寸，软管或接头的实际公称尺寸是4/16或表示为1/4英寸。
DN值与DASH/SIZE值的对照关系如下：二、高压软管的表示方法：汉萨.福莱柯斯公司高压软管的表示方法为HD加上三位数字表示。
其中第一位数字代表软管钢丝加强层层数，第二、第三位数字代表DN值。
常州公司使用的高压软管目前只有三种形式，一种是DIN20022标准的2SN软管，中间有二层编织钢丝加强、工作介质为矿物油、工作温度为-40度－100度。
表示方法为HD200。
第二种是DIN20023标准的4SP软管，中间有四层缠绕钢丝加强、工作介质为矿物油。
工作温度为-40度－100度。
表示方法为HD400。
第三种是DIN20023标准的4SH软管，中间有四层高强度缠绕钢丝加强、工作介质为矿物油。
工作温度为-40度－100度。
表示方法为HD500。
需要说明的是HD500中的5并不代表钢丝加强层为五层。
例如：HD 206 其中HD＝高压软管2＝二层高张力钢丝编织层06＝DN值为6毫米例如：HD 420 其中HD＝高压软管4＝四层高强钢丝缠绕增强层20＝DN值为20毫米例如：HD 532 其中HD＝高压软管5＝四层高强缠绕钢丝增强层32＝DN值为32毫米三，扣压式套筒的表示方法：我公司使用的扣压式套筒共有二种形式。
一种是PHN套筒，扣压时不需剥去胶管外胶层。
另一种是PHD套筒，扣压时需剥去胶管外胶层。
汉萨.褔莱柯斯公司扣压式套筒的表示方法为PHN或PHD加上三位数字表示。
例如：PHN 206 其中PHN200＝不剥皮扣压式套筒适用胶管：HD100 ,HD200 ,KP2006＝DN值为6毫米例如：PHD 113 其中PHD100＝剥皮扣压式套筒适用胶管：HD100,KP100,KP200,KP200S,HD100T等13＝DN值为13毫米例如：PHD 420 其中PHD200＝剥皮扣压式套筒适用胶管：HD200,HD200S,HD200T,KP400,HD400等20＝DN值为20毫米三、接头的表示方法1、接头的表示方法汉萨.褔莱柯斯公司压力接头的表示方法由PN加一组数字及一组字母组成。
液压软管基本知识2
HPDE-GB_M06_Nr.20_27/07/98
FluidConnectors
派克订货信息
FluidConnectors
尺寸转换示例
DN(公称尺寸）-〉Size(划线规格) 例: 381 - 12.7 (size 08) 尺寸基准 = 16/16 = 1“ = 25.4mm
HPDE-GB_M06_Nr.30_27/07/98
1 CA 48 15-8
1 CA 48 15-8 1 CA 48 15-8
> 接头系列
HPDE-GB_M06_Nr.110_27/07/98
> 硬管连接尺寸 > 胶管内径 (划线规格)
FluidConnectors
订货信息
3. 胶管总成
例: F301SN CA CF 15 15 08 1000 ...F301SN CA CF 15 15 08 1000 ...- > F301SN CA CF 15 15 08 1000 ...- > F301SN CA CF 15 15 08 1000 ...- > F301SN CA CF 15 15 08 1000 ...- > F301SN CA CF 15 15 08 1000 ...- > F301SN CA CF 15 15 08 1000 ...- > F301SN CA CF 15 15 08 1000 ...- > F301SN CA CF 15 15 08 1000 ...- > F301SN CA CF 15 15 08 1000 ...- > F301SN CA CF 15 15 08 1000 ...- >
48
-15
硬管外径 (连接尺寸)
parker软管说明2
Parker软管使用说明尊敬的客户朋友：针对广大用户对CNG软管的使用方法、使用寿命、更换周期、更换条件等的迫切需求，我公司根据软管生产商的原英文使用说明翻译成中文使用说明，以便广大用户理解，有此说明书，就能更好的明确软管的使用方法和更换依据。
CNG软管CNG软管应用于天然气输送和加气机系统等。
最高使用温度为180F。
CNG软管不能运用于没有足够通风的局限空间。
注意：首先必须组装起来检漏，检漏遵从GAG规则。
具有明火处或者具有打火装置处，不能够使用。
检漏液体必须回清洗掉，软管上不得残留检漏液。
需更换条件包括：1. 有渗漏物；2. 软管上有膨胀气泡或者软点3. 过度磨损4. 破裂或者折损5. 纠结或拧捏6. 将软管置于超过180F(82.2C)或者低于-40F(-40C)7. 软管错位或者变形CNG软管符合ANSI/ISA NGV 4.2-1999 CSA 1.52-M99条款。
“CNG软管应用于天然气输送和加气机系统上”CNG软管主要参数如下：注意：特别注意软管应确保不被强行弯曲、缠绕或扭转。
应确保周围环境对软管与设备连接的有效保护应对软管进行每月至少一次的检查按照步骤，首先对软管外观进行检查，看有无破损，然后对软管进行耐压测试，看软管是否泄漏。
最后对软管进行导静电测试。
对软管没有可靠的保护装置，则不能使用软管。
✧不适当的选择或错误的使用该产品可能会导致人员伤亡和财产损失。
错误的使用包括触电以及由于高压泄露引起的表皮脱落、软管破裂、连接处松动或碾砸而引起的危险；✧在选择或使用这个产品之前，阅读和遵循这个标签以及公告4400-B.1的安全指导。
拨打电话330-296-2871或1-800-CPARKER索要安全指导书。
✧不要使软管在超过它的工作压力下工作：3CNG-3600psi 4CNG-4000psi 5CNG-5000psi.✧高速流动的液体流经软管可能会造成静电的增加。
在装配时，若软管不能通过电阻测试都必须立即更换。
Parker软管培训资料
软管尺寸规格－选择合理的流速
划线 －4 －5 －6 －8 －10 －12 －16 －20 －24 －32 规格
英制 1/4 5/16 3/8 1/2 5/8 3/4 1 尺寸
1-1/4 1-1/2 2
公制 6.4 7.9 9.5 12.7 15.9 19 尺寸
25.4 31.8 38.1 50.8
精品文档
温度－同时在高压和高温下工作的软管会 大大缩短使用寿命！
同时考虑介质温度和环境温度 同时考虑最高温度和最低温度 －40/+100C°- 381,481,371,731 －40/+125C°301,421,771/77C,781/78C
560, 590 －40/+150C°- 421H, 436 －55/+100C°- 301LT, 53LT, 55LT -50/ +230C° - 919 (2MPa)
精品文档
软管
软管接头
精品文档
软管总成
精品文档
软管的基本结构-钢丝编织软管
增强层
钢丝编织的夹角 －中位角－ 54°44“
外层
内层
精品文档
软管的基本结构－钢丝缠绕软管
钢丝缠绕的夹角 －中位角－ 54°44“
精品文档
软管的类别(按基本材料区分)
橡胶 软管（派克 HPD 产品 )
热塑 软管（派克PARFLEX 和
公制 6
8
10 12 15 20 25 32 40 50
公称
规格
英制 3/16 1/4 5/16 13/32 1/2 5/8 7/8 1-1/8 1-3/8 1-
当量
13/16
规格
划线规格－4＝4/16=1/4 (英制)
水管管径计算
水管管径计算水管管径是一个重要的参数，它直接影响着水流的速度、压力和流量。
无论是家庭用水还是工业生产，选择合适的水管管径都是至关重要的。
下面我将以人类的视角为您介绍水管管径的计算方法和相关知识。
我们需要了解什么是水管管径。
水管管径指的是水管的内径，通常以毫米（mm）为单位进行表示。
常见的水管管径有20mm、25mm、32mm、40mm等。
不同的应用场景和需求会选择不同的管径。
那么，如何确定合适的水管管径呢？通常情况下，我们会根据需要输送的水量来选择合适的管径。
一般来说，水管的内径越大，水流的速度就越慢，但可以输送更大的水量。
相反，内径越小，水流的速度就越快，但输送的水量较小。
在选择水管管径时，我们需要考虑以下几个因素：首先是输送水量的要求，即需要输送多少水量。
其次是水流的速度要求，比如对于家庭用水，我们希望水流稳定，不会出现断流或者漫流的情况。
再次是水管的材质和长度，不同材质和长度的水管对水流的阻力也不同。
针对不同的需求，我们可以参考一些经验公式来初步确定水管管径。
比如，对于家庭用水，一般可以按照每分钟3-5升的需求来选择管径。
对于工业生产，需要根据具体情况和工艺要求来确定。
还有一些专业的水力学计算方法可以用来精确计算水管管径，但这需要一定的专业知识和工具支持。
如果遇到复杂的情况或者有特殊需求，建议咨询专业的水管工程师或者相关机构。
选择合适的水管管径是确保正常供水和排水的重要因素。
在选择时我们需要考虑水量、水流速度、水管材质和长度等因素，并可以参考经验公式或者专业计算方法来确定。
最终目标是为用户提供稳定、高效的供水和排水系统。
Parker 工业水泥管产品简介与拉出图说明书
HOSE PRODUCTS DIVISION The market leader andyour supplier of choiceParker offers the most comprehensive line of hoses, fittings, equipment and accessories you’ll need. And if there’s something you need that’s not a standard product, we’re able to design and manufacture it for you with ease. You’ll also benefit from our ultimate competitive advantage – our network of distribution outlets that can provide our products nearly anytime and anywhere. We strive to provide customers with local engineering, local products and local service. Parker offers the largest selection of hoses plus more fitting sizes than any other manufacturer. You’ll find a wide variety of hoses including braided, spiral and multi-purpose, and more than 4,500 fittings. Parker products have been designed, tested and approved to meet and exceed global standards.The right product is available for your application, including hose that features a variety of abrasion-resistant cover choices, flexibility, a wide range of media compatibility and more – characteristics that make Parker the hose supplier of choice for customers that demand the most from their equipment.SAFETY GUIDE FOR SELECTING HOSE, TUBING, FITTING AND RELATED ACCESSORIESFAILURE OR IMPROPER SELECTION OR IMPROPER USE OF HOSE, TUBING, FITTINGS, ASSEMBLIES OR RELATED ACCESSORIES (“PRODUCTS”) CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE. POSSIBLE CONSEQUENCES OF FAILURE OR IMPROPER SELECTIONOR IMPROPER USE OF THESE PRODUCTS INCLUDE BUT ARE NOT LIMITED TO:n Fittings thrown off at high speedn High velocity fluid dischargen Explosion or burning of the conveyed fluidn Electrocution from high voltage electric power linesn Contact with suddenly moving or falling objects that are controlled by the conveyed fluidn Injections by high-pressure fluid dischargen Dangerously whipping hosen Contact with conveyed fluids that may be hot, cold, toxic or otherwise injuriousn Sparking or explosion caused by static electricity buildup or other sources of electricityn Sparking or explosion while spraying paint or flammable liquidsBefore selecting or using any of these products, it is important that you read and follow the instructions. Only hose from Parker’s Stratoflex Products Division is approved for in flight aerospace applications, and no other hose can be used for such in flight applications (Parker Publication No. 4400-B1).OFFER OF SALEThe items described in this document are hereby offered for sale by Parker Hannifin Corporation, its subsidiaries or its authorized distributors. This offer and its acceptance are governed by the provisions stated in the “Offer of Sale.”/offerofsaleANY PRESSURE. ANY PROJECT. ONESOLUTIONGlobalCore Specifying GlobalCore, a unified system that delivers hoses built on the ISO 18752 specification, provides oppor-tunities for OEMs and end users to improve efficiency in operations, increase uptime with a streamlined selection process and longer service life for 1,000to 6,000 psi applications.HydraulicIndustryStandardIndustry standardsset specific require-ments concerningconstruction type,size, tolerances,burst pressure, andimpulse cycles.Available in eitherbraided or spiralconstructions. Foruse with petroleum-based fluids, dieselfuel, hot lubricatingoil, air, ethyleneglycol anti-freeze,and water.TransportationFor marine fuellines, L.P.G. andC.N.G. hose, andtruck applicationssuch as powersteering, cab tilt,air intake, dieselfuel, air brake, andlube line systems.SpecialtyHosesDesigned to offerthe widest rangeof low, mediumand high pressurespecialty hydraulic,pneumatic, industrialand hybrid hosesin the industry.They are resistantto heat, fire, ozone,weather, chemicals,oil, flames, UVand abrasion anddeliver engineeredsolutions to all yourspecialty hoseproduct needsand applications.SteamParker's steamhoses transfersteam as part ofhigh temperaturecleaning systemsfor in-plant/ refineryservice – suchas railcars, tanksand vessels – andto keep processequipment operat-ing efficiently. Thehoses providea selection ofseveral inner tubeand outer covermaterials to handlea wide range ofservice conditions.Oil & GasParker providesthe knowledgeneeded to producehoses fit for severeconditions intoday’s oil and gasindustry. Parker'shoses are made forreliable, continuoususe in offshore/onshore upstreamapplications, aswell as midstream/downstream transferapplications.WaterParker's waterhoses are offeredin multiple pressuresand sizes for clean-ing, irrigation, spray,wash down andlarge diametersuction and dis-charge applications.Our water hosesare abrasion andweather resistantfor robust service inharsh environmentsand applications FuelParker fuel hosehandles a wide varietyof petroleum basedfuels in depot,dispenser, dock,engine fuel line, in-planttransfer, transport andtank truck suctionand discharge servicesafely and efficiently.The hoses are compat-ible with numerousfuels such as avgas,biodiesel, diesel,gasoline and jet fuel,and are available in adiverse range of pres-sures, sizes and tem-perature capabilities.PetroleumIn the petroleumindustry, a faulty orbroken hose can haveextremely seriousconsequences. That’swhy the inner tubesand covers on Parker’sindustrial hoses arespecifically chosen andengineered to providemaximum life even inthe most demandingpetroleum applicationssuch as transfer,suction and dischargeand blending.PVCFlexible PVC tubingalso offers a broadrange of chemical andcorrosion resistance,excellent abrasionand wear resistance,rubber-like flexibilitywith outstanding flowcharacteristics. Thesefeatures, along withvarious constructionoptions offered and thedifferent formulationsavailable, makes PVChose suitable for somany applications.Air &MultipurposeParker air hoseprovides robust servicein air tool, compressor,manufacturing/processequipment and generalindustrial applications.Serving a broad rangeof markets, the hosesare offered in flexiblerubber constructionsand lightweight,abrasion resistantthermoplasticconstructions, eachin multiple colors,pressures and sizes.MaterialHandlingOur vast assortmentof hoses includesspecifically engineeredmaterial handling hosesthat are constructedto withstand the mostabrasive materialsneeding transfer, andto required standards.ChemicalParker chemicalhoses safely handle awide variety of acidsand chemicals fordepot, dock, in-planttransfer, tank truck andtransport suction anddischarge service. Thehoses feature severaldifferent inner tubematerials to cover awide of range of media,pressures, sizesand temperaturecapabilities. OUR HOSES ARE EASILY IDENTIFIED BY APPLICATION, MARKET OR BRAND To meet our customers’ specific application requirements, we offer a broad range of innovative products designed to enhance performance, productivity, and safety for both the industrial and hydraulic hose markets.QUALITY SERVICES FOR A COMPETITIVE ADVANTAGEAsset Management SystemParker Tracking System (PTS) is an innovative component-tagging and asset management solution. In addition to labelingcomponents, users can document, replace, track, inspect,plan and analyze key equipment data with PTS.Hose Cleaning ServicesParker offers hose cleaning services to protect the life of hoseassemblies from dirt and debris, which can cause unwanted hosefailures. A pellet flushing system is used after hoses are cut andcrimped to remove debris from inside the assembly. To ensurecleanliness, we recommend utilizing Parker Clean Seal Caps.Both the pellets and the caps are an easy and quick way to ensureyou have a contamination-free hose assembly.Custom Tube Assemblies & Hose Tube CombinationsParker’s tube assemblies or hose and tube combinations provide analternative to rubber hose. Tube assemblies are a viable alternativein some applications where the port to port mounting is consistentand where the vibration and movement is limited. All assembliesare custom made to your specifications. Parker is ideally suitedto supply high volume assemblies for equipment manufacturersbut can also supply for quantities as small as five.For more information, please call:ParkerStoreParkerStores are a global network of independently-ownedindustrial retail operations with more than 3,500 service pointsaround the world. Whether it’s through a brick-and-mortar locationor from one of our mobile Hose Doctor operators, Parker isyour best bet for on-the-job help.HOSE ACCESSORIES Spring Guard & Armor Guard: Constructedfrom steel and designed to prolong the life of your hose lines that are exposed to rugged operating conditions.PolyGuard & Parkoil: Protect and bundle your hoses with these spiral guards that minimize kinking and cannot rust. Both the PolyGuard and Parkoil install without removing the hose. Partek Sleeve: Nylon woven protective sleeving gives you tough hose abrasion resistance with two versions of coverage – standard “AS” and a lighter “PS” – both providing protection and bundling capability.Firesleeve: A flame-resistant sheaththat protects your hose from extremehigh temperature conditions.NEXWRAP™ Polyethylene SpiralChafe Guard: A polyethylene spiral chafe guard designed as a conduit/harness to protect and bundle cable, hose, tubingand wiring.Strain Relievers: Helps prevent the hose from bending too close to the fitting and remove stress from the end of the crimp.Partek Defense: A nylon woven hose sleeve designed to provide reliable, long-lasting, protection to personnel and equipment in the event of a hose burst by containing the energy of the burst.Partek Wrap:A lightweight, highly flexible nylon sleeve designed for added abrasion resistanceand bundling multiple hoses orcables after assembly.EXTREME HOSE FLEXIBILITY WHERE TIGHT ROUTING IS A CHALLENGE Designed to handle extreme bends while allowing full-flow, kink-free performance, E-Z Form hose effectively replaces preformed hoses and hose bent metal tube assemblies in many applications – eliminating special design, tooling and fabrication costs and associated long lead times. E-Z Form is crush resistant and kink resistant for unimpeded flow, offers superior flexibility for easy handling and installer/operator convenience, and is resistant to abrasion and weathering for maximum performance.E-Z FORMParker Hannifin Corporation Fluid Connectors Group Wickliffe, Ohio9In addition to our Parkrimp crimpers, we offer a complete line of adjustable and production crimpers. Many are also available with programmable touchscreen controllers, ensuring that the assembly process is as easy as possible.and crimper decals available for immediate printing.For complete product information on all of Parker’s crimpers, please visit: /crimpsourceTH8-380Production CrimperPARKER'S EXTENSIVE EQUIPMENT LINEalso includes hose saws, push-on stands, power units as well as cleaning and capping systems to help you every step of the way while fabricating hose assemblies.Cut-Off Machines: Fast cutting and relatively low initial investment in equipment.Hose Insertion Depth Blocks and Fitting Push-on Stands: Boost productivity and quality of hose assemblies. Portable Crimper Power Units: Increase productivity and versatility for smaller hose assembly needs. Hose Cleaning and Capping Systems:Rid the assembly of any possible contaminationand extend hose life.MULTIPLE FITTING CONFIGURATIONS FOR BOTH HYDRAULIC ANDINDUSTRIAL APPLICATIONSFLANGESAvailable in SAE Code 61, SAE Code 62, DIN, ISO and Caterpillar ® specification. Flanges come in an array of configurations and sizes.Material ...............Steel and stainless steel Sizes ..........................1/2" through 2-1/2"Pressure ...........................Up to 6000 psiJIC 37° and SAE 45°Flared fittings come in many shapes and sizes to meet your connectionrequirements.Material ...............Steel and stainless steel Sizes ................................1/4" through 2"Pressure ...........................Up to 6000 psiPIPE FITTINGSFittings create a metal-to-metal seal. Threads of the fitting mate with the threads of the connecting port or coupling.Material ...............Steel and stainless steel Sizes ................................1/8" through 2"Pressure .........................Up to 12000 psiSEAL-LOK ®Designed with a flat face and O-ring to create the optimal seal for leak-free hydraulic applications.Material ...............Steel and stainless steel Sizes ................................1/4" through 2"Pressure ...........................Up to 6000 psiSAE 100R5Fittings available in shapes and sizes that meet most SAE 100R5 hose and air conditioning hoseapplications.Material ............................Steel and brass Sizes .....................3/16" through 1-13/16"Pressure ...........................Up to 3000 psiMETRICFittings are available in DIN, BSP , BSPP , ISO, French and JIS standards.Material ...............Steel and stainless steel Sizes ......1/8" / 3 mm through 2" / 38 mm Pressure ...........................Up to 6000 psiSAE STRAIGHT THREADFittings provide leak-free port connections. The threads hold the fitting in place while the O-ring creates the seal.Material ...............Steel and stainless steel Sizes ................................1/4" through 2"Pressure ...........................Up to 6000 psiENHANCED SUPPORT FOROUR HOSE SOLUTIONSCircle of Safety: Many industrial hose manufacturers will suggest hose and fitting configurations for a given application, but they won't guarantee the combination will perform to the rated burst pressure of the hose. However, one of the benefits of working with Parker is that we assure the promise of quality industrial hose assemblies. Our Circle of Safety program establishes Parker's Hose Products Division as a single, accountable source with a specific performance guarantee to protect distributors and end users from accidents, unplanned downtime and increased liability./safehoseIndustrial Hose Selector: Need a hose or fitting? Our hose selector application allows you to search the entire catalog of products from Parker's Hose Products quickly and efficiently. Narrow down precisely what you need with the STAMP process, or browse thousands of products by category./safehoseCADs: Parker has CAD models available for more than 4,000 of its hydraulic and industrial adapters and fittings. Models are accessible with all major CAD applications at:/HPD_CADInstructional Videos: Hose Products Division offers a series of videos to help you better understand our products, services and capabilities in quick, easy-to-digest segments. Subjects include GlobalCore™, the Parkrimp™ crimping system, the basic elements of hoses, and more./HPD_VideosPARKER DELIVERS EXCEPTIONAL QUALITY AND RELIABILITY WHEN IT COMES TO EQUIPMENT AND TOOLING. FACTORY-QUALITY HOSE ASSEMBLIES CAN BE QUICKLY, EASILY, AND COST EFFECTIVELY MANUFACTURED WITH PARKER’S INDUSTRY LEADING EQUIPMENT.Parker's Parkrimp family of crimping machines enable any user to makefactory-quality hose assemblies quickly, easily and cost-effectively.The Parkrimp-style crimpers are designed to crimp fittings to theproper diameter every time. Parker’s Parkrimp system provides severalkey advantages such as:INDUSTRY LEADING EQUIPMENTParkrimp 2Transportation Material HandlingPetroleumInd. Std.ISO ENTemp Range-3-4-5-6-8-10-12-16-20-24-32-40-48-56-64-80-96Ind. Std.ISO ENTemp Range-3-4-5-6-8-10-12-16-20-24-32-40-48-56-64-80-96-128GlobalCore ™Hydraulic HoseMAXIMUM HOSE PRESSURE RATIWARNING: T he products described in this brochure can expose you to chemicals including Carbon Black, DEHP , Ethylene Thiourea, and Lead, which are known to the State of California to cause cancer, andDBP , DEHP , Ethylene Thiourea, and Lead which are known to the State of California to cause birth defect or other reproductive harm. For more information go to .Air & MultipurposeFor specific temperature range per size, please reference catalog or .Engine CoolantAir & MultipurposeEngine Fuel Ind. Std.ISO ENTemp Range-3-4-5-6-8-10-12-16-20-24-32-40-48-56-64-80-96Ind. Std.ISO ENTemp Range-3-4-5-6-8-10-12-16-20-24-32-40-48-56-64-80-96-128TING CHART (PSI) /HPDHydraulic Industry StandardSpecialty HosesSpecialty HosesInd. Std.ISOENTemp Range-3-4-5-6-8-10-12-16-20-24-32-40-48-56-64-80-96Ind. Std.ISOENTemp Range-3-4-5-6-8-10-12-16-20-24-32-40-48-56-64-80-96* Pressure varies with fittings used.PVCHeaterSteamChemical Ind. Std.ISO ENTemp Range-3-4-5-6-8-10-12-16-20-24-32-40-48-56-64-80-96Oil & GasInd. Std.ISO ENTemp Range-3-4-5-6-8-10-12-16-20-24-32-40-48-56-64-80-96Water** Also available as factory assemblies.© 2018 Parker Hannifin Corporation BUL. 4400-B13 06/18Your complete source for quality tube fittings, hose & hose fittings, brass & composite fittings, quick-disconnect couplings, valves, and assembly tools, locally available from a worldwide network of authorized distributors.Fittings:Available in inch and metric sizes covering SAE, BSP ,DIN, GAZ, JIS, and ISO thread configurations, manufactured from steel, stainless steel, brass, aluminum, nylon, and thermoplastic.Hose, Tubing, and Bundles:Available in a wide variety of sizes and materials including rubber, wire-reinforced, thermoplastic, hybrid and custom compounds.Worldwide Availability:Parker operates FluidConnectors manufacturing locations and sales offices throughout North America, South America, Europe, and Asia-Pacific.For information, call toll-free:1-800-C-PARKER (1-800-272-7537)Parker Fluid Connectors GroupNorth American Divisions & Distribution Service CentersNorth American DivisionsFluid System Connectors Division Otsego, MIphone 269 694 9411fax 269 694 4614Hose Products Division Wickliffe, OHphone 440 943 5700fax 440 943 3129Parflex Division Ravenna, OHphone 330 296 2871fax 330 296 8433Quick Coupling Division Minneapolis, MNphone 763 544 7781fax 763 544 3418Tube Fittings Division Columbus, OHphone 614 279 7070fax 614 279 7685Distribution Service CentersBuena Park, CAphone 714 522 8840fax 714 994 1183Conyers, GAphone 770 929 0330fax 770 929 0230Louisville, KYphone 502 937 1322fax 502 937 4180Portland, ORphone 503 283 1020fax 503 283 2201Toledo, OHphone 419 878 7000fax 419 878 7001fax 419 878 7420 (FCG Kit Operations)Canada Milton, ONTphone 905 693 3000fax 905 876 1958(Contact Milton for other Service Center locations.)MexicoToluca, MEXphone (52) 722 2754 200fax (52) 722 2722 168Parker Hannifin CorporationHose Products Division 30240 Lakeland Blvd.Wickliffe, OH 44092phone 440 943 5700fax 440 943 3129。
管道内径计算公式
管道内径计算公式嘿，咱来聊聊管道内径的计算公式这事儿。
你知道吗，管道内径的计算在生活中还真挺重要的！就拿我之前遇到的一件事儿来说吧。
有一回，我们小区的供水系统出了点问题，水流变得特别小。
大家都在抱怨，这日子咋过呀，连洗个菜都不痛快。
维修师傅来了之后，就开始琢磨管道内径的事儿。
要说这管道内径的计算，那可是有讲究的。
一般来说，常用的公式是根据流量、流速和管道截面积的关系来的。
假设流量是 Q ，流速是V ，管道截面积是 A ，那管道内径 D 就可以通过A = π×(D/2)² 这个式子先算出截面积 A ，然后再反推出内径 D 。
这里面的流量，简单理解就是在单位时间内通过管道的流体体积。
比如说，一分钟内通过管道的水有多少立方米。
流速呢，就是流体在管道内流动的速度。
这俩数据要是不准确，那算出来的内径可就差得远啦。
在实际计算中，不同的流体和使用场景，流速的取值也不太一样。
像水在一般的管道里流速可能就比在高压管道里慢得多。
而且，管道材质也会有点影响哦。
比如说塑料管道和金属管道，对流体的阻力可能就不太一样。
我还记得当时维修师傅拿着个小本子，一边测量，一边嘴里念念有词地算着。
他一会儿看看水表的数据，一会儿又摸摸管道，那认真的劲儿，就像是在解一道超级难题。
最后，经过一番计算和尝试，终于找到了问题所在，把管道内径调整好了，小区的供水也恢复了正常。
咱们再深入一点说，要是计算气体管道的内径，那就更复杂一些啦。
因为气体的可压缩性，还得考虑压力和温度的变化对流量和流速的影响。
总之啊，这管道内径的计算虽然有点复杂，但只要掌握了方法，搞清楚各种参数，也不是什么解不开的谜。
下次您要是遇到跟管道有关的问题，说不定自己也能算一算，心里有个底儿！希望通过我的这番讲解，能让您对管道内径的计算公式有更清楚的了解，在生活中遇到相关问题时能更得心应手。
Parker软管培训资料,派克液压胶管培训资料,技术培训资料
Parker软管培训资料,派克液压胶管培训资料,技术培训资料Parker软管培训资料主要是为了帮助使用者更好地了解和运用派克液压胶管。
本文将介绍软管的基本知识、常见问题及解决方法，并包含一些实用的技术培训资料。
一、软管的基本知识1. 软管的定义和分类软管是一种用于传输流体或气体的管道，由内管、加强层和外套组成。
根据用途不同，软管可以分为液压胶管、空气胶管、化学胶管等。
2. 软管的材质软管通常采用橡胶、聚氨酯、聚氯乙烯等材质。
这些材质具有良好的抗压强度、耐磨性和耐化学腐蚀性。
3. 软管的安装注意事项在安装软管时，需要注意以下几点：- 避免软管过度弯曲或扭转，以免影响流体的传输效率。
- 随时检查软管表面是否有裂纹、变形或磨损，若有必须及时更换。
- 定期检查软管连接接头是否松动，必要时进行紧固。
二、常见问题及解决方法1. 软管漏液软管漏液可能是由以下原因引起的：- 连接件不牢固：解决方法是重新紧固连接件。
- 软管老化或磨损：若软管表面有明显的裂纹或磨损，需更换新的软管。
2. 软管温度过高或过低软管在使用过程中，有时会出现温度异常的情况。
造成软管温度异常的原因可能有：- 材质不耐高温或低温：需选择适用温度范围合适的软管。
- 环境温度过高或过低：需对软管进行隔热或保温措施。
3. 软管压力异常软管在使用过程中，可能会受到过高或过低的压力。
以下可能是导致软管压力异常的原因：- 过高的流体压力：需检查液压系统中的阀门和泵的压力是否正常，适当调整。
- 软管内径不匹配：需选择内径适配的软管。
三、技术培训资料1. 派克液压胶管的安装步骤- 清洁安装表面并涂抹适当的润滑剂。
- 用剪刀或管子剪切工具将软管按需要剪短，确保切口平整。
- 将软管插入连接件中，确保软管与连接件的接触面充分密封。
- 使用扭矩套筒对连接件进行固定，并检查是否牢固。
2. 派克液压胶管的常见故障与排查方法- 漏液故障：检查连接件是否松动，更换漏液软管。
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2
6,3 4,8
15 20 25 30
Recommended maximum velocity for pressure lines
* gallons are UK gallons Conversion factor: gal/min x 4,546 = l/min feet/s x 0,3048 = m/s
* Recommended velocities are according to hydraulic fluids of maximum viscosity 315 S.S.U. at 38°C working at roomtemperature within 18° and 68°C.
Ab-20
Catalogue 4400/UK
100 90 80 70 60 50
Velocity
m/s
20 50,8 15
feet/s
2
10 40 30 5 20 15 3 10 9 8 7 6 5 1 4 4
31,8 25,4 19,1 15,9 12,7 9,5 7,9
Example Flow Q = 45 l/m Velocity V = 6,1 m/s Konstant K = 21,2025
Flow Q
l/min 400 300 60 50 200 40 150 30
Gal/min *
80
Inside diameter d
mm dash sizes inch -32 2 0,6 38,1 -24 1-1/2 -20 1-1/4 -16 1 1,2 1
Technical Handbook
Flow Capacity Chart
Flow Capacity Nomogram
Flow Capacities of Parker Hoses at Recommended Flow Velocities The chart below is provided as an aid in the determination of the correct hose size. Example: at 10 gallons per minute (gal/min), what is the proper hose size within the recommended velocity range for pressure lines? Locate 10 gallons per minute in the left-hand column and 20 feet per second in the right-hand column (the maximum recommended velocity range for pressure lines). Lay a straight line across these two points. The inside diameter shown in the centre column is above -6 so we have to use -8 (1/2"). For suction hose, follow the same procedure except use recommended velocity range for intake lines in the right-hand column. where: Q = flow in gallons per minute (gal/min & l/min) V = velocity in feet per second (f/s & m/s) d = hose inside diameter (mm &ximum velocity for suction lines
4 5
-12 3/4 -10 5/8 -8 1/2 -6 3/8 -5 5/16 -4 1/4 -3 3/16 3 4 5 6,1 7 8 9 2
6 7 8 10
Recommended maximum velocity for return lines