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文章來(lái)源： 更新時(shí)間：2017-10-13
1.每一個(gè)90度彎頭或90度三通損失約1米揚(yáng)程。
It will lose 1 meter‘s lift when you add a 90 ° elbow or three-way pipe in the pipeline.
2.每20米管路長(zhǎng)度損失約1米揚(yáng)程。
It will lose 1 meter’s lift when the pipeline exceeds 20 meters.
3.如果出水管路直徑有過(guò)渡（縮徑）或分流（三通等），為了減少流體能量在管路中的損失，請(qǐng)使過(guò)渡段（縮徑）或分流（三通等）盡量遠(yuǎn)離泵的出口，以接近噴嘴處為最好。
If there is a reducing bend or a three-way in the pipeline. In order to reduce the energy loss, make the reducing bend or the three-way as far away from the pump, close to the nozzle for the best.
4.吉林吉特建議:單級(jí)泵能滿(mǎn)足要求時(shí),盡量不選擇多級(jí)泵.因?yàn)? ①多級(jí)泵對(duì)介質(zhì)清潔度要求高,容易堵塞. ②多級(jí)泵流道變長(zhǎng),對(duì)介質(zhì)熱輸入高,冷卻效果受影響.③多級(jí)泵有機(jī)械密封,不耐干轉(zhuǎn)和污物,屬于易損件。
JL-JET suggestions: Try not to choose the multi-stages pump if the single-stage pump can meet the requirements. Because the multi-stages pump: Ⅰ.It is easily blocked by impurity. Ⅱ. The heat input is high. Ⅲ. The mechanical seal is the wearing part. It is not adapt dry running.
5.如果選用多級(jí)泵,同軸泵要優(yōu)先于斷軸泵. 因?yàn)殡姍C(jī)水泵同軸結(jié)構(gòu),避免了聯(lián)軸器產(chǎn)生故障的可能.另外,同軸泵的液上部分尺寸占用空間小. 但是液下尺寸要求較長(zhǎng)時(shí),斷軸泵要優(yōu)于同軸結(jié)構(gòu)。
The coaxial pump takes precedence over the separate shaft pump. Because the coaxial structure, avoiding the coupling failure. In addition, the coaxial pump’s motor part takes smaller occupation than separate structure. But when there is long under water size requirement, the separate structure is better than the coaxial pump.
6.如選用PJT-XXA，LXB-XXA和DJB-XXA系列型號(hào)時(shí)，遇有管路較長(zhǎng)且泵進(jìn)水口高于液面設(shè)計(jì)時(shí)，請(qǐng)您在泵的進(jìn)水端加裝逆止閥,使停機(jī)后泵腔及管路中介質(zhì)不倒灌回水箱,以利于再開(kāi)機(jī)時(shí)介質(zhì)迅速到達(dá)工作點(diǎn)。
If you chose JL-JET’s model such as PJT-XXA，LXB-XXA and DJB-XXA, please add a cut-off valve at the inlet part of pipeline.
7.在選泵用于粘度較高的介質(zhì)時(shí)，建議您選擇功率揚(yáng)程時(shí)選高一個(gè)等級(jí)的型號(hào)或特殊訂貨。
For high viscosity media, JL-JET advice you to choose a higher level power model.
8.如遇同一臺(tái)機(jī)床使用兩臺(tái)泵（或排屑機(jī)），電器設(shè)計(jì)務(wù)必單獨(dú)控制，避免單臺(tái)使用時(shí)另一臺(tái)空運(yùn)行。
If a machine uses two pumps, electrical control system must be designed individually. This is to avoid one pump working another idling.
9.吉林吉特產(chǎn)品為220V/380V 50Hz三相雙電壓，默認(rèn)電機(jī)出廠(chǎng)接線(xiàn)為Y接380V, 如有特殊要求，請(qǐng)?zhí)崆罢f(shuō)明 Our default connection model is "Y"380V and 50Hz, if there are special requirements, please notify JL-JET.
10.吉林吉特產(chǎn)品標(biāo)準(zhǔn)配用的電機(jī)的防護(hù)等級(jí)為IP44. 如有特殊要求，請(qǐng)?zhí)崆罢f(shuō)明。
JL-JET’s default protection level is IP44. if there are special requirements, please notify JL-JET.
11.吉林吉特可承接特殊頻率、特殊電壓及三防等特殊要求訂貨。
JL-JET can accept orders of special frequency and voltage
12.為了保護(hù)環(huán)境,節(jié)能減排,同時(shí)節(jié)約采購(gòu)成本. 吉林吉特建議您, 請(qǐng)盡量選擇低功率電機(jī)。
For the purpose of environment protection, JL-JET suggests you to choose low power motors.
13.常用揚(yáng)程單位換算 （吉林吉特設(shè)計(jì)依據(jù)的揚(yáng)程單位為"米"）。
Common units transfer of lift. JL-JET’s basic unit is "H".
14.常用流量單位換算 （吉林吉特設(shè)計(jì)依據(jù)的流量單位為"升/分"）。
Common units transfer of flow. JL-JET’s basic unit is "L/min"
吉林吉特版權(quán)所有，盜用必究！
All rights reserved by JL-JET.
It will lose 1 meter‘s lift when you add a 90 ° elbow or three-way pipe in the pipeline.
2.每20米管路長(zhǎng)度損失約1米揚(yáng)程。
It will lose 1 meter’s lift when the pipeline exceeds 20 meters.
3.如果出水管路直徑有過(guò)渡（縮徑）或分流（三通等），為了減少流體能量在管路中的損失，請(qǐng)使過(guò)渡段（縮徑）或分流（三通等）盡量遠(yuǎn)離泵的出口，以接近噴嘴處為最好。
If there is a reducing bend or a three-way in the pipeline. In order to reduce the energy loss, make the reducing bend or the three-way as far away from the pump, close to the nozzle for the best.
4.吉林吉特建議:單級(jí)泵能滿(mǎn)足要求時(shí),盡量不選擇多級(jí)泵.因?yàn)? ①多級(jí)泵對(duì)介質(zhì)清潔度要求高,容易堵塞. ②多級(jí)泵流道變長(zhǎng),對(duì)介質(zhì)熱輸入高,冷卻效果受影響.③多級(jí)泵有機(jī)械密封,不耐干轉(zhuǎn)和污物,屬于易損件。
JL-JET suggestions: Try not to choose the multi-stages pump if the single-stage pump can meet the requirements. Because the multi-stages pump: Ⅰ.It is easily blocked by impurity. Ⅱ. The heat input is high. Ⅲ. The mechanical seal is the wearing part. It is not adapt dry running.
5.如果選用多級(jí)泵,同軸泵要優(yōu)先于斷軸泵. 因?yàn)殡姍C(jī)水泵同軸結(jié)構(gòu),避免了聯(lián)軸器產(chǎn)生故障的可能.另外,同軸泵的液上部分尺寸占用空間小. 但是液下尺寸要求較長(zhǎng)時(shí),斷軸泵要優(yōu)于同軸結(jié)構(gòu)。
The coaxial pump takes precedence over the separate shaft pump. Because the coaxial structure, avoiding the coupling failure. In addition, the coaxial pump’s motor part takes smaller occupation than separate structure. But when there is long under water size requirement, the separate structure is better than the coaxial pump.
6.如選用PJT-XXA，LXB-XXA和DJB-XXA系列型號(hào)時(shí)，遇有管路較長(zhǎng)且泵進(jìn)水口高于液面設(shè)計(jì)時(shí)，請(qǐng)您在泵的進(jìn)水端加裝逆止閥,使停機(jī)后泵腔及管路中介質(zhì)不倒灌回水箱,以利于再開(kāi)機(jī)時(shí)介質(zhì)迅速到達(dá)工作點(diǎn)。
If you chose JL-JET’s model such as PJT-XXA，LXB-XXA and DJB-XXA, please add a cut-off valve at the inlet part of pipeline.
7.在選泵用于粘度較高的介質(zhì)時(shí)，建議您選擇功率揚(yáng)程時(shí)選高一個(gè)等級(jí)的型號(hào)或特殊訂貨。
For high viscosity media, JL-JET advice you to choose a higher level power model.
8.如遇同一臺(tái)機(jī)床使用兩臺(tái)泵（或排屑機(jī)），電器設(shè)計(jì)務(wù)必單獨(dú)控制，避免單臺(tái)使用時(shí)另一臺(tái)空運(yùn)行。
If a machine uses two pumps, electrical control system must be designed individually. This is to avoid one pump working another idling.
9.吉林吉特產(chǎn)品為220V/380V 50Hz三相雙電壓，默認(rèn)電機(jī)出廠(chǎng)接線(xiàn)為Y接380V, 如有特殊要求，請(qǐng)?zhí)崆罢f(shuō)明 Our default connection model is "Y"380V and 50Hz, if there are special requirements, please notify JL-JET.
10.吉林吉特產(chǎn)品標(biāo)準(zhǔn)配用的電機(jī)的防護(hù)等級(jí)為IP44. 如有特殊要求，請(qǐng)?zhí)崆罢f(shuō)明。
JL-JET’s default protection level is IP44. if there are special requirements, please notify JL-JET.
11.吉林吉特可承接特殊頻率、特殊電壓及三防等特殊要求訂貨。
JL-JET can accept orders of special frequency and voltage
12.為了保護(hù)環(huán)境,節(jié)能減排,同時(shí)節(jié)約采購(gòu)成本. 吉林吉特建議您, 請(qǐng)盡量選擇低功率電機(jī)。
For the purpose of environment protection, JL-JET suggests you to choose low power motors.
13.常用揚(yáng)程單位換算 （吉林吉特設(shè)計(jì)依據(jù)的揚(yáng)程單位為"米"）。
Common units transfer of lift. JL-JET’s basic unit is "H".
| 單位Unit | 米 （H） | 兆帕 （MPa） | 千克 （KG）/CM2 | 巴 （bar） |
| 1 米 | 1 | 0.01 | 0.1 | 0.1 |
| 1 兆帕 | 100 | 1 | 10 | 10 |
| 1千克/CM2 | 10 | 0.1 | 1 | 1 |
| 1 巴 | 10 | 0.1 | 1 | 1 |
14.常用流量單位換算 （吉林吉特設(shè)計(jì)依據(jù)的流量單位為"升/分"）。
Common units transfer of flow. JL-JET’s basic unit is "L/min"
| 單位Unit |
升/分 （L/min） |
噸/時(shí) （m3/h） |
英尺3/時(shí) （ft3/h） |
英國(guó)加侖/分 （Ukgal/min） |
美國(guó)加侖/分 （Usgal/min） |
美國(guó)桶/日 （bbl/d） |
| 1升/分 | 1 | 0.06 | 2.1189 | 0.21997 | 0.264188 | 9.057 |
| 1立方米(噸)/時(shí) | 16.667 | 1 | 35.314 | 3.667 | 4.403 | 151 |
| 1立方英尺/時(shí) | 0.4719 | 0.028317 | 1 | 0.1038 | 0.1247 | 4.2746 |
| 1英國(guó)加侖/分 | 4.546 | 0.02727 | 9.6325 | 1 | 1.20032 | 41.1 |
| 1美國(guó)加侖/分 | 3.785 | 0.2273 | 8.0208 | 0.8326 | 1 | 34.28 |
| 1美國(guó)桶/日 | 0.1104 | 0.00624 | 0.23394 | 0.02428 | 0.02917 | 1 |
吉林吉特版權(quán)所有，盜用必究！
All rights reserved by JL-JET.