IRG型IRG100-65J-200A热水循环泵型号说明
Irg65-200管道离心泵
Irg65-200管道离心泵、阀杆动密封及法兰垫片静密封处是否渗漏2、启闭状态是否正常3、阀体有无损伤及渗漏等异常现象4、将平时常开或常闭的阀门转动～2圈或做次升降试验5、对常开或常闭阀门阀杆部位润滑6、检查和调试气动阀门的动力头及电气系统合理配置、安全运行、优质供水-离心泵如何合理配置电机水泵的功率，是保证水泵的安全运行，优质供水，降低生产成本的关键，合理配置水泵功率，发挥水泵最佳工作区域的安全运行，我厂供水的实际情况，足已说明设备合理配置的重要性、可靠性和经济性。
如何合理配置电机水泵的功率，是保证水泵的安全运行，优质供水，降低生产成本的关键，合理配置水泵功率，发挥水泵最佳工作区域的安全运行，我厂供水的实际情况，足已说明设备合理配置的重要性、可靠性和经济性。
、机泵设备合理配置的重要性。
水厂的主要任务是保证全市人民的生产和生活用水，南厂原来日最大供水量一、产品概述IRG型立式单级单吸热水泵，是在ISG型的基础上自行研究开发的新一代节能、环保立式热水离心泵。
该系列泵性能优、可靠性高、寿命长、结构合理、外形美观，具有行业领先水平。
二、用途IRG型立式单级单吸热水泵适用于冶金、化工、纺织、木材加工、造纸以及饭店、浴室、宾馆等锅炉高温热水增压循环输送及城市住房采暖循环用泵，使用温度105℃以下。
三、工作条件:1、吸入压力≤1．6MPa，或泵系统最高工作压力≤1．6MPa，即泵吸入口压力+泵扬程≤1．6MPa、泵静压试验压力为2．5MPa，订货时请注明系统工作压力。
泵系统工作压力大于1．6MPa时应在订货时另行提出，以便在制造时泵的过流部分和联接部分采用铸钢材料。
2、环境温度<40℃，相对湿度<95％。
3、所输送介质中固体颗粒体积含量不超过单位体积的0．1％，粒度<0．2mm。
注：如使用介质为带有细小颗粒，请在订货时注明，以便厂家采用耐磨式机械密封。
四、产品特点:运行平稳：泵轴的绝对同心度及叶轮优异的动静平衡，保证平稳运行，绝无振动。
IRG50-200A
长沙自平衡多级泵厂家宏力水泵整理 IRG50-200A概述：IRG50-200A是本单位科技人员联合国内水泵专家选用优秀水力模型，采用IS 型离心泵之性能参数，在一般立式泵的基础上进行巧妙组合设计而成。
同时根据使用温度、介质等不同在管道泵基础上派生出适用热水、高温、腐蚀性化工泵、油泵。
该系列产品具有高效节能、噪音低、性能可靠等优点。
ISG型号意义：例如：ISG100-315(I)ABIHG-单级单吸化工管道离心泵100-进出口口径(mm)315-叶轮名义直径(mm)I - 扩流型A、B-叶轮经第一、二次切割泵类别：ISG：单级单吸管道离心泵IRG：单级单吸热水管道离心泵IGRY：单级单吸高温管道离心油泵IHG：单级单吸化工管道离心泵YG：单级单吸离心管道油泵IHGB：单级单吸立式不锈钢防爆化工泵IRG50-200A产品特点:1、泵为立式结构，进出口口径相同，且位于同一中心线上，可象阀门一样安装于管路之中，外形紧凑美观，占地面积小，建筑投入低，如加上防护罩则可置于户外使用。
2、叶轮直接安装在电机的加长轴上，轴向尺寸短，结构紧凑，泵与电机轴承配置合理，能有效地平衡泵运转产生的径向和轴向负荷，从而保证了泵的运行平稳，振动小、噪音低。
3、轴封采用机械密封或机械密封组合，采用进口钛合金密封环、中型耐高温机械密封和采用硬质合金材质，耐磨密封，能有效地延长机械密封的使用寿命。
4、安装检修方便，无需拆动管道路系统，只要卸下泵联体座螺母即可抽出全部转子部件。
5、可根据使用要求即流量和扬程的需要采用泵的串、并联运行方式。
6、可根据管路布置的要求采用泵的竖式和横式安装。
离心泵IRG50-200A性能范围:1、吸入压力≤1．0MPa（200以下口径），或泵系统最高工作压力≤1．6MPa （200及以下口径），即泵吸入口压力+泵扬程≤1．6MPa，泵静压试验压力为2．5MPa，订货时请注明系统工作压力。
泵系统工作压力大于1．6MPa时应在订货时另行提出，以便在制造时泵的过流部分和联接部分采用铸钢材料。
IRG立式热水循环泵性能参数
IRG立式热水循环泵性能参数
IRG立式热水循环泵订货说明： 1.离心泵产品名称（立式离心泵、卧式离心泵、管道离心泵、多级离心泵、化工离心泵、单级离心泵、不锈钢离心泵、耐腐蚀离心泵、氟塑料离心泵、玻璃钢离心泵、自吸离心泵）;
2.离心泵规格型号（ISW 、ISWR、ISWH、ISWB 、ISG、IRG 、IHG、YG、ISGB、ISWD 、ISGD、IS 、IH、SG、FS、S、GBW 、FSB、AFB 、FB、PBG、ZX、SH、CDLF、GDL、LG、DL、TSWA、QDLF 、IHF、GC、CYZ-A、FPZ）;
3.离心泵产品流量（1.5-
500m3/h）;
4.离心泵产品扬程（8-150m）;
5.离心泵产品口径（DN15-300）;
6.离心泵适用介质（水、热水、冷水、、汽油、煤油、腐蚀性液体、盐酸、非氧化性酸等）;
7.离心泵壳体材料（铸铁、不锈钢、玻璃钢、氟塑料、增强聚丙烯）;
8.离心泵产品功率（0.55-
110KW）;
9.离心泵介质温度（-40-120度）;。
海尔家用热水循环泵应用指南说明书
Flow rates up to: 5 m 3/h Heads up to: 6 m Max. operating pressure:10 bar Temperature range:+1°* to 110°C Max. ambient temperature:+40°C*– 10°for the NZL***APPLICATIONSN.T. N o 111-7/ENG. - Ed.2/05-05DOMESTIC HEATING CIRCULATORSFor specific needs50 HzAccelerated hot water circulation in open or closed heating circuits.•Private houses.•Greenhouses, etc.These circulators are particularly well adapted to the replacement market.•NZL ***13-40: 120 mm port to port, low noise level•NZL ***33-40: 120 mm port to port, low noise level•XA15 NS : 158 mm port to port;4 pole motor at slow speed = increased service lifeType 82°C 95°C 110°C Allmodels1.5 m w.c. 3.0 m w.c.10 m w.c.10.2 m w.c. = 1 barIn order to avoid bearing deterioration and the risk of pump cavitation, it is essential to follow the minimum pressures given above.•Hydraulic partCasing with flanges for direct assembly on piping.Rotating parts in contact with water in anti-corrosive material.Stainless steel suction ring and end-shield with bronze filter.•Motors3-speed and multispeed with manual selector.Wet rotor, self-lubricated bushings by the liquid pumped.Rotor chamber protected by sinterbronze filter.Manual venting at commissioning.Speed : See table Winding 1-phase : 230 V Frequency : 50 Hz: (option 60 Hz)Insulating category : F (155°C)Protection index : IP 42Conformity :EN 61000-6-2: EN 61000-6-3: CETF110 or TF95: Depending on models Approvals : VDE - IMQ•Intrinsically-safe motors against overloads, circuit breaker not essential.• Multispeed, for better adaptation to all types of installation.• Impeller shaft does stick due to high start-up couple.• Optimum range of hydraulic features.• Silent operation.• Maintenance-free.➤ XA15 NS• 4 pole slow speed motor increases circulator service life. Fitted with a SALMSONIC variator.➤ NZL ***• Hydraulics especially well adapted to installations with low speed liquid circulation.RANGEtypespeed between flanges connec-number mm tionXA15NS multi 158CF NZL ***133120CF NZL ***333120CF12341020304050600.20.40.60.81545321HmQm 3/h Ql/min MINIMUM SUCTION PRESSURES DEPENDING ON OPERATING TEMPERATURES•NZL ***13-40•NZL ***33-40•XA15NS12341020304050600.20.40.610.81.61.20.80.406Imp.gpmHmQm3/h Ql/min Ql/s3 SPEEDS“SALMSONIC” MUL TISPEED12341020304050600.20.40.610.843210Qm 3/h HmQl/min Ql/s12341020304050600.20.40.610.81.61.20.80.40Imp.gpm HmQm 3/h Ql/min Ql/sa) Electrical- All types in single-phase 230 V, 50 Hz with capacitor integrated in the terminal box.- Motor protection through circuit breaker not essential.b) Installation- Motor shaft always horizontal.Connection with the facility:- By oval mating pipe flange to be screwed PN 6 or 10, depending on model.c) Packaging- NZL *** supplied without accessories - XA 15 supplied without accessories.d) Maintenance- Standard replacing of the appliance.OPTIONS & ACCESSORIES➧➧XA15NS - oval flanges - PN6 - ND25NZL ***- oval flanges - PN10 - ND40M O T O RP U M PCONNECTION POSSIBLE ORDER P 2n capacitor speed speed P 1intensity massON THREADED P I P E REFERENCEselector WµF x V position rpm W max.A max.kg G3/4 G1 G11/41 min.1000600.27CBOV PN6 2634 or XA15NS 152.5 x 4002.63342 or 4049 or 50605 max.13001000.4211200180.09CBOV PN6 2634 or NZL ***13-40P 10 1.6 x 40021600310.15 2.83342 or 404931950480.2111300300.13CBOV PN6 2634 or NZL ***33-40P 202.5 x 40021650460.20 2.83342 or 404932050650.2815885190145120• Oval mating pipe flanges to be screwed PN6 or 10.• Isolating valves.• Threaded cleaner plug, facilitating the cleaning of the impeller shaft without plug removal.53 bd de la République - Espace Lumière - Bât. 6 - 78403 Chatou Cedex FRANCE Tel: +33 (0)1 30 09 82 39 - Fax: +33 (0)1 30 09 82 34 - 。
IH100-65J-200B
IH100-65J-200B型单级单吸离心泵概述：
IH100-65J-200B型单级单吸离心化工泵，按照国家标准设计通用化程度高。
用于输送不含固体颗粒，粘度类似于水的腐蚀性液体，被输送介质温度一般为20℃~105℃。
泵的最高工作压力为1.6MPa，进口压力不高于0.6MPa。
.
IH100-65J-200B型卧式单级离心泵结构型式：
泵为卧式安装，水平轴向吸入，向上径向吐出。
泵为悬架式结构，检修时不需拆卸进、出口管路，即可退出转子部件进行检修。
泵是通过普通弹性联轴器或加长弹性联轴器与电动机联结，泵的轴封采用软填料密封。
轴承为单列向心球轴承，采用润滑油润滑。
IH100-65J-200B型单级卧式离心泵旋转方向：
从电机端看，泵为顺时针方向旋转。
IH100-65J-200B型单级单吸离心泵主要零件材质：
过流部件材质一般为普通灰铸铁。
IH100-65J-200B型单级单吸离心泵成套范围：
成套供应泵，电动机、公用底座、联轴器等，还提供底阀、止回阀、闸阀。
IR100-65J-250型单级热水泵
IR100-65J-250型单级热水泵 IR100-65J-250型单级热水泵，是全国联合设计的节能泵，它是BA型、BL型及其他单级清水离心泵的更新型。
优点有：全系列水力性能布局合理，用户选择范围宽，检修方便;效率和吸程达到国际平均先进水平。
本型泵适用于工业和城市给水、排水，也可用于农业排灌及供输送清水或物理化学性质类似于清水的其他液体之用，温度不高150℃。
IR100-65J-250型单级热水泵型号意义： IR100-65J-250型单级热水泵结构特点： IR100-65J-250型单级热水泵系根据国家标准ISO2858所规定的性能和尺寸设计的，主要由泵体(1)、泵盖(2)、叶轮(3)、轴(4)、密封环(5)、轴套及悬架轴承部件(12)等所组成。
IR100-65J-250型单级热水泵的泵体和录盖的部分，是从叶轮背面处剖分的，即通常所说的后开门结构形式。
其优点是检修方便，检修时不动泵体，吸入管路，排出管路和电动机，只需拆下加长联轴器的中间联接件，即可退出转子部件，进行检修。
泵的壳体(即泵体和泵盖)抅成泵的工作室、叶轮、轴和滚动轴承等为录的转子。
悬架轴承部件支承着泵的转子部件，滚动轴承承受泵的径向力和轴向力。
为了平衡泵的轴向力，大多数泵的叶轮前、后均设有密封环，并在叶轮后盖板上设有平衡孔，由于有些泵轴向力不大，叶轮背面未设密封环和平衡孔。
泵的轴向密封环是由填料压盖(9)，填料环(10)，和填料(11)等组成，以防止进气或大量漏水。
泵的叶轮如有平衡，則装有软填料的空腔与叶轮吸入口相通，若叶轮入口处液体处于真空状态，則很容易沿着轴套表面进气，故在填料腔内装有填料环通过泵盖上的小孔将泵室内压力水引至填科环进行密封。
泵的叶轮如没有平衡孔， 由于叶轮背面液体压力大于大气压，因而不存在漏汽问題，故可不装填料环。
为避免轴麿损，在轴通过填料腔的部位装冇轴套保护，轴套与轴之间装有0形密封困，以防止沿着配合表面进气或漏水。
暖水循环泵商品说明说明书
Flow rates up to:120 m 3/h Head up to:43 m Max. discharge pressure:13 bar up to +140°C 16 bar up to +120°CTemperature range:–20°to +140°C Max. ambient temperature:+ 40°C Flanges ND:40 to 80N.T. N o 124-8/ENG. - Ed.3/05-05H 431200 /h mQm 38029SINGLE HEAD PUMPSIN-LINE ELECTRONIC CONTROLHeating - Air conditioningS.H.W. 50 HzPumps designed to circulate cold or hot water free from abrasive residues in heating,hot domestic supply water, cold and iced water systems and irrigation systems. If additives are used, such as glycol or oil,check that the seals are suitable and whether or not the flow rate needs to be adjusted (for a glycol volume of upwards of 10%).•Approved fluids:- Heating water to VDI 2035●- Service water - chilled/condenser water ●- Water/glycol-mixtures 1)●- Heat transfer fluids ❍Other media on request ❍PerformanceSpeed range: 1100 -2900 rpm.Infinitely-variable speed control.●Standard design❍Special design at extra cost1)Applies to 20 - 40 % vol. glycol content and up to 40°C fluid temperature.APPLICATIONS•Mains power supply3~400 V, 50 Hz ●3~380 V, 60 Hz ●•MotorThree-phase squirred cage electric motor Performance and frames to IEC 38 Integrated thermistor sensors ●(thermistor)Protection index IP 54 ●Insulating category F ●ElectronicsEmission EN 61800-3 EN 50081-1 Immunity EN 61800-3 EN 50082-2 Protection differential (FI)Selective “all current” FI differential circuit breakers are permitted.(> 300 mA trip rating).Ident mark: FI •Hydraulic partIn-line single-stage low pressure centrifuge pump with suction and discharge flanges of the same nominal diameter, with anair-cooled standard IEC motor. NP 16 holed flanges compliant with EN 1092-2. G 1/8 pressure gauge couplings used for the built-in differential pressure sensor.The pump body has serial bosses designed for a maximum operating pressure of16 bars. The motor shaft coupling is rigid. The body and the closed impeller are made from grey cast iron. The mechanical seal does not require maintenance and is independent of the rotation direction.It is suitable for pure water of a temperature up to 140°C and water/glycol mixturesof a volume up to 40% and a maximum temperature of 40°C. Special seals and sealing materials are available for other uses.•Motor protectionIntegrated full overload protection by PTC thermal sensor in all stator windings.IP 54 - Class F.•ENERGY SAVINGSPumps duty point optimization.Up to 50% energy savings compare to standard pumps.•NOISE CONTROLWhistling and noise elimination at thermostatic valves.Automatic speed adaptation for comfort needs.•RELIABILITYThe fully automatic running requires neither sensor maintenance nor drain. Electronic set equipped with non volatile memory for data storage, settings protection in case of electricity shortage.Protection Index IP 54 for motor/set package in case of dust and humid surroundings. For twin pumps (DIE equiped with 2 IF modules), automatic* permutation without external control.•SIMPLICITYOnly one button controls function choice and settings adjustment. Adjustments always viewable on LCD screen.NBNPSH curves shown are based on tested data. A safety margin of not less than0.5 m should be added.Mains parts Material Pump EN-GJL 2503)●Impeller EN-GJL 2004)●G-CuSn 5❍Lantern EN-GJL-2503)●Shaft 1.4122/X39CrMo17-1●Mechanical seal Graphite/Si carbide/EP●❍Other mechanical seals on request.Series SIE pumps are designed for directhorizontal or vertical inline pipe mounting.The motor or module must not be mountednear the bottom. Leave a space to removethe motor, the lantern ring and the impeller.With motor powers upwards of 4kW themotor needs to be supported (mounting invertical a duct) or a pedestal is required tosupport the pump body (mounting in ahorizontal duct).•PackagingThe pump, the packaging and the assemblyand instruction manual are included asstandard.•Accessories- Support bracket mounting- IF module LON*- Pipe supported ●- Bracket or base mounted ❍Pipe connectionsFlanges PN 16/EN 1092-2 ●- Pump intergrated P-c mode for constanthead control- Pump intergrated P-v mode for variablehead control- Remote control facility (0 - 10V) for wiringto an external control unit BMS- Pump integrated setpoint adjustment- Graphic Display- Fault reset button- Off-line centralised operating signal(closed-circuit contact)- Centralised fault signal (open-circuitcontact)- External On/Off- “Analogue 0…10V*” input- Space for IF module (interface for doublepumps)●Standard design❍Special design at extra cost* See functions charge1) Applies to 20 - 40 % vol. glycol content and upto 40°C fluid temperature.2) Applicable for water/glycol mixtures differingfrom those referred in 1).3) Previously Ft 25.4) Previously Ft 20.1. Complete exchange batch 1.1Hydraulic kit with 1.11 Nut 1.12 Washer 1.13 Impeller 1.14 O-ring1.2Kit mechanical seal with1.21 Complete mechanical seal 1.3Lantern kit parts with 1.31 Bleed screw1.32 Coupling protector 1.33 Lantern 1.4Kit shaft with 1.41 Shaft1.42 Spring stop cellar 1.5Complete coupling2. Motor3. Complete pump casing kit with 3.1 Pump3.2 Stopper for pressure ports4. Mounting screw for lantern/pump5. Mounting screw for motor/lantern6. Nut for motor/lantern mounting7. Washer for motor/lantern mounting8. Differential pressure sensor with pipe.IDENTIFICATIONSIE: single pump 2 pole motorNominal dia. of ports in cm Nominal dia. of impeller in cm Rated power in kWSIE 2 05 - 17/7.521FUNCTIONS CHART DIE FunctionSingle head pumps SIEMains power 3~400V, 50 Hz ●3~380V, 60 Hz ●Manual function Pump On/Off●Mode selection ( p-c, p-v, remote control)●Adjusting of the differential pressure setpoint ●Speed selection (manual remote control)●Automatic functionInfinitely variable speed control p-c ●Infinitely variable speed control p-v ●Full motor protection with trip function ●Remotely controlled function Remote On/OffCommand input “0...10 V” or “4-20 mA” (remote speed adjustment)●Signal and display functionCollective Run signal (volt-free contacts)●Collective Fault signal (volt-free contacts)●Fault light ●Fault code●LCD-screen with pump data display ●Data exchangeSerial digital interface (LON) for link-up to home system ●2)Double pump management (2 x single pumps)Normal/back up mode (automatic switching in the case of a fault/changing of pump according to time)●3)Cascade mode (switching on/off at peak loads for optimised energy consumption)●3)2) with 1 of IF-Module (Accessories)3) with 2 of IF-Modules (Accessories)SSMSBMLON (only on IF module LON)DPOption : IF module (DP) (LON)L1L2L3PE Ext.OffIn In 4…20mA0 (10V)231+24VRefit plug-in module for series SIE electronically controlled pumps for the following additional functions:•Serial digital interface (only on IF module LON) for the connection to Building Management (GTC).•DP interface for twin pump management with the functions:- Main/standby operation with automatic 24 h pump duty cycling,- Cascade mode with switching on/off of a 2nd pump at peak loads for optimised energy consumption.Three-phase 3~400V, 50Hz/380V, 60 HzSwitch rating of volt-free contacts for collective Run and Fault signals:- min. 12 V DC/ 10 mA - max. 250 V AC/1 AL1,L2,L3,PE :Power supply 3~400V - 50 Hz – 3~380V - 60 Hz SSM :Volt-free common Fault signal SBM :Volt-free common Run signal 3:Analog input 24 V DC for external sensor 2:Ground (⊥) sensor 1:Analog input (0 - 10 V) for integrated or external sensor (GTC)4…20 mA :Analog input (4-20 mA) for remote control impulse (GTC)Ext. Off :Remote On/Off DP :Twin pump management (2 pumps)LON:Serial digital BMS interface (LONWORKS),HmQI/min QI/s30050010002000300055030201510710201553035252030406010020050708090Qm /h2468HmkW 02468HmkW2134567kW Hm24201612845002501000125015007501014182226260QI/min QI/s 500250100012501500750101418222626QI/min QI/s213456897kW Hm2420161284021345689705002501000125015001750200022502500750102025303540155QI/min QI/s kW HmSuction-dischargeflangesPN16 - EN 1092-2NDD c g holes mm mm mm n x Ø4015011084 4 x 195016512599 4 x 1965185145118 4 x 19802001601328 x 19ORDERM O T O RP U M PREFERENCEPowerP2Speed input Nominal ND Ph b 1b 2b 3Y e f Øg H P 1O p P 2X mass P1 max.current ports kWrpm kW in A mmmm mm mm mm mm mm mm mmmmmmmmmm mm mm kg SIE 204-17/5.5 5.51100-29007.211.5403408211312918013014958266583170M10203039589SIE 205-17/7.57.51100-29009.314.55034010312013818016414348266590170M1020303100101SIE 206-15/5.5 5.51100-29007.211.56543011012614618018019560266596215M122030312097SIE 208-14/7.57.51100-29009.314.58040010512315118018017357266610200M122030312010653 bd de la République - Espace Lumière - Bât. 6 - 78403 Chatou Cedex FRANCETel: +33 (0)1 30 09 82 39 - Fax: +33 (0)1 30 09 82 34 - 。
水泵型号及技术参数
/ 14 90×130 60×110
2.8 16 34 4.0 15 42 5.2 13.5 41
26 23 41 2.3 0.55 0 0 5 60 25 115 85 4-φ14 14 80×110 50×80
2.8 20.6 28 4.0 20 36 5.2 18 35
2.3 0.75 26 23 43 75 25 115 85 4-φ14 14 80×110 50×80 005
2.3 0.75 28 23 44 85 40 150 110 4-φ18 14 100×150 70×115 005
2.3
2.2
32 0
150 110 4-φ18 14 100×150
70×115
32 27 48 2.3 1.5 0 0 5 90 40 150 110 4-φ18 14 100×150 70×115
性能参数 与 外形和安装尺寸表 (n=2900rpm)
流量 扬程 效率 必需汽蚀 电机
外形与安装尺寸
m3/h (m) (%) 余量(m) (KW) L B H A DN D Dk n-φd d1 C1×B1 C2×B2
1.1 8.5 26 1.5 8.0 34 2.0 7.0 34
2.3 0.18 18 16 34 40 G1/2 / / 000
型号意义
I S G 100 — 160 （ I ）A（ B、C ）
叶轮经第一（二、三）次切割 流量分类 叶轮名义直径（㎜） 泵进出口直径（㎜） 泵类别： ISG 为清水型
IRG 为热水型 IHG 为化工型 YG 为油泵型 GRG 为高温型
1
泵结构图
1 2 3 4 5 6 7 8 9 10
1. 泵体 2. 丝堵 3. 叶轮 4. 螺栓 5. 机械密封 6. 挡水圈 7. 泵盖 8. O型圈 9.放气阀 10电机
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IRG型热水循环泵
IRG型热水循环泵概述：
IRG型热水循环泵系单级单吸悬臂式离心泵，适用于冶金、电站、化工、采暖余热利用系统或封闭贿赂中的热水循环和有机热电缴获。
用来输送温度不超过230℃，工作压力不高于3MPa的介质。
IRG型热水循环泵参数范围：
流量Q 5.4~400m3/s
扬程H 6~80m
IRG型热水循环泵型号说明：
IRG100－65J－200A
IRG－单级单吸热水离心泵
100－吸入口直径（mm）
65－排出口直径（mm）
J－表示电机转速改变
200－叶轮名义直径（mm）
A－表示叶轮直径改变（B、C分别表示第二、按次切割叶轮）
IRG型热水循环泵结构型式：
泵为卧式安装，水平轴向吸入，向上径向吐出。
泵体为后开门式，可不拆卸泵体、吸入和排出管进行检修。
泵的轴封采用填料密封或铅箔包填料密封。
轴承为滚动轴承，采用稀油润滑。
IRG型热水循环泵旋转方向：
从电动机端看，泵为顺时针方向旋转。
IRG型热水循环泵主要零件材质：
泵的过流部件材质，除叶轮Ⅰ、Ⅱ类材质用HT200外，其余Ⅰ：QT500-7；Ⅱ：ZG230-450；Ⅲ：ZG2Cr13。
长沙三昌水泵厂IRG型热水循环泵成套范围：
成套供应泵、电机、公用底座、联轴器，同时提供止回阀、闸阀。
205
206
207
212。