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三螺桿泵/3G三螺桿泵  
   1. 特點(diǎn) 2.適用介質(zhì)和性能范圍 3.結(jié)構(gòu) 4.系列說明 5.材料代碼

	3GR三螺桿泵
	適用范圍:20-150cst潤滑油類及潤滑性液體   流量0.3-94m3/h,最高工作壓力60bar
	詳細(xì)參數(shù)
	3GC船用型臥式單吸三螺桿泵
	適用范圍:20-150cst潤滑油類及潤滑性液體   流量0.3-94m3/h,最高工作壓力60bar
	3GCLS立式三螺桿泵
	適用范圍:20-150cst潤滑油類及潤滑性液體   流量范圍:88-306m3/h   最高工作壓力:8bar
	3GCL立式柱腳單吸三螺桿泵
	適用范圍:20-150cst潤滑油類及潤滑性液體   流量范圍:4-96m3/h   最高工作壓力8bar
	3GS臥式雙吸三螺桿泵
	適用范圍:20-150cst潤滑油類及潤滑性液體   流量范圍:80-590cst   最高工作壓力16bar

    ●特點(diǎn)：
    3G三螺桿泵包括3G 通用型，3GC船用型及特殊型。3G三螺桿泵是轉(zhuǎn)子式容積泵，由于主動(dòng)螺桿與從動(dòng)螺桿上螺旋槽相互嚙合及它們與襯套三孔內(nèi)表面的配合，得以在泵的進(jìn)出口之間 形成數(shù)級(jí)動(dòng)密封腔室,這些動(dòng)密封腔室將不斷把液體由泵進(jìn)口軸向移動(dòng)到泵出口，并使所輸 液體逐級(jí)升壓，從而形成一個(gè)連續(xù)、平穩(wěn)、軸向移動(dòng)的壓力液體。Three-screw pump including 3 g, 3 g for general 3 gc Marine type and special type.3 g three screw pump is a positive displacement pump rotor type, due to the driving screw and driven screw spiral groove on the pitch and they cooperate with three hole on the surface of the liner, in between the import and export of the pump Form number level dynamic seal chamber, the dynamic seal chamber will continue to move from pump axial liquid pump discharge, and lose a liquid booster step by step, thus forming a continuous, smooth, axial movement of liquid pressure.
   ●3G三螺桿泵適用介質(zhì)及性能范圍：3 g three-screw pump applicable medium range and performance
   3G三螺桿泵所輸液體為各種不含固體顆粒，無腐蝕性油類及類似油的潤滑性液體，所輸液體粘度為1.2~100°E（3.0~760cst），高粘度液體亦可通過加溫降粘后輸送。 流量范圍0.2~590m3/h，最高工作壓力100bar，最高溫度150℃。3 g three-screw pump of liquid for various not containing solid particles, non-corrosive oil lubricity and similar oil liquid, the liquid viscosity is 1.2 ~ 100 ° E (3.0 ~ 760 CST), high viscosity liquid can be transmitted through heating after the viscosity.Flow range of 0.2 ~ 590 m3 / h, maximum working pressure of 100 bar, the highest temperature of 150 ℃.
  ●3G三螺桿泵結(jié)構(gòu):
  1、結(jié)構(gòu)簡單：具有多種結(jié)構(gòu)形式，一般小流量0.2~6.5m3/h，泵的泵體和襯套合為一體（統(tǒng)稱泵體），軸封為機(jī)械密封。Simple structure: has a variety of structural form, generally small flow of 0.2 ~ 6.5 m3 / h, pump body and pump bushing (generally referred to as the pump body), is an organic whole to shaft seal for the mechanical seal.
  中等流量以上的泵襯套為一單獨(dú)的零件固定于泵體內(nèi)，大流量泵多制成雙吸結(jié)構(gòu)臥式安裝，軸封根據(jù)輸送介質(zhì)的不同有機(jī)械密封和填料密封兩種。Medium flow above the pump sleeve is fixed in a separate pump body, big flow made double suction pump more structure horizontal installation, depending on the medium of the shaft sealing has two kinds of mechanical seals and packing seal.
  3G船用泵的安裝形式有臥式和立式兩種，原動(dòng)機(jī)為交、直流船用電動(dòng)機(jī)。3 g Marine pump installations have horizontal and vertical two kinds, prime mover for Marine ac or dc motor.
  2、壽命長：3G三螺桿泵的主動(dòng)螺桿由電動(dòng)機(jī)驅(qū)動(dòng)，主、從桿之間沒有機(jī)械接觸，而由所輸壓力液體驅(qū)使從桿繞軸心線自轉(zhuǎn)，主、從桿之間、螺桿與襯套之間皆有一層油膜保護(hù)，因而泵的機(jī)械摩擦極小，壽命堪稱半永久性。Long life: 3 g three-screw pump active screw driven by a motor, no mechanical contact between master and slave rod, and by a liquid pressure driven from rod rotated on its axis, the Lord, from between rod, screw and bushing is a layer of oil film protection, thus pump mechanical friction small, life is a permanent.
  3、所輸液體在3G三螺桿泵內(nèi)作軸向勻速直線運(yùn)動(dòng)，故壓力脈動(dòng)小，流量穩(wěn)定，噪音低，由于轉(zhuǎn)動(dòng)部件慣性小，則起動(dòng)力矩和振動(dòng)很小。
  4、3G三螺桿泵具有高吸入能力。Of liquid in a 3 g three-screw pump axial uniform motion in a straight line, so the pressure fluctuation is small, flow stability, low noise, due to the small inertia rotating parts, starting torque and small vibration.
  5、為保證3G三螺桿泵、電機(jī)及管路系統(tǒng)的安全，中等流量以上的螺桿泵均帶有安全閥，當(dāng)壓力超過安全閥的設(shè)定壓力時(shí)，高壓油將回流至泵的進(jìn)油口。In order to ensure the 3 g three screw pump, motor and the safety of the pipeline system, secondary flow above the screw pump is with safety valve, when pressure exceeds the set pressure of the relief valve, high pressure oil will flow back to the inlet of the pump.
  ●3G三螺桿泵系列說明

   ●3G三螺桿泵材料代碼

材料組合代碼	泵體	襯套	使用范圍
W1	HT200	稀土銅鉬球鐵	可低壓輸送潤滑性較差，粘度適當(dāng)?shù)囊后w，如燃油等。
W2	HT200	ZL109	可低壓輸送潤滑性好，粘度適當(dāng)?shù)囊后w，如潤滑油等。
W3	QT450-10	ZL109	用于特殊場合（如船用泵）低壓輸送潤滑性較好，粘度適當(dāng)?shù)囊后w，如潤滑油等。
W4	QT450-10	稀土銅鉬球鐵	用于特殊場合（如船用泵）低壓輸送潤滑性較差，粘度適當(dāng)?shù)囊后w，如燃油等。
W21	HT200	ZCuSn5Pb5Zn5	可在較高壓力下輸送潤滑性較差，粘度較低的液體，如重油、燃油等。
W23	QT450-10	ZCuSn5Pb5Zn5	用于特殊場合（如船用泵） 有較高壓力下輸送潤滑性較差，粘度較低的液體，如重油、燃油等。

    ●性能曲線圖

• 3GR25*4三螺桿泵
• 3GR25*6三螺桿泵
• 3GR36*4三螺桿泵
• 3GR36*6A三螺桿泵
• 3GR42*4A三螺桿泵
• 3GR42*6A三螺桿泵
• 3GR50*2三螺桿泵
• 3GR50*4A三螺桿泵
• 3GR70*2三螺桿泵
• 3GR85*2三螺桿泵