一、產(chǎn)品簡(jiǎn)介
3G、3GR系列普通三螺桿泵主要用于輸送中低粘度的潤(rùn)滑性液體。在工業(yè)生產(chǎn)中作為液壓泵、潤(rùn)滑泵、燃油泵、輸送泵。泵由基礎(chǔ)件：泵套、泵體、螺桿和附件：底腳、安全閥、軸承體等組成，通過(guò)改變附件達(dá)到改變泵的不同安裝形式。
3GBW系列保溫三螺桿泵主要用于在常溫下不能輸送的高粘度潤(rùn)滑性液體，常作為瀝青、重燃油、渣油、原油的輸送或噴然用。熱載體可以是蒸氣和熱油、熱水，冷載體可以是氣體或液體�，F(xiàn)廣泛應(yīng)用于公路建設(shè)中瀝青的輸送。一般高工作溫≤250oC，超過(guò)此溫度在訂貨時(shí)請(qǐng)說(shuō)明。
二、特點(diǎn)
結(jié)構(gòu)簡(jiǎn)單，體積小、允許高轉(zhuǎn)速、工作平穩(wěn)可靠、壓力脈動(dòng)小、流量穩(wěn)定、噪音小、效率高、有自吸能力、節(jié)能。
三、使用范圍
螺桿泵適用于輸送燃料油、潤(rùn)滑油、液壓油、植物油、瀝青及其他潤(rùn)滑性液體和油、水、氣混合液體。
四、螺桿泵代號(hào)說(shuō)明
形式代號(hào) 3G BW F 45X2 - 46 W Z
|
形式代號(hào) |
3G |
BW |
F |
45X2 |
46 |
W |
Z |
|
|
系列 |
結(jié)構(gòu)特征 |
安裝形式 |
規(guī)格 |
螺旋角（度） |
軸承位置 |
泵進(jìn)口位置 |
1. 系列
3G表示三螺桿泵。
2. 結(jié)構(gòu)特征
|
符號(hào) |
結(jié)構(gòu)說(shuō)明 |
|
無(wú) |
單吸螺桿泵 |
|
S |
雙吸螺桿泵 |
|
BW |
保溫螺桿泵 |
3. 安裝形式
|
符號(hào) |
安裝形式 |
|
無(wú) |
底腳臥式 |
|
F |
法蘭支架式 |
|
L |
柱腳立式 |
4. 規(guī)格
|
規(guī)格范圍 |
對(duì)應(yīng)系列產(chǎn)品 |
|
30 X4~200 X3 |
3G |
5. 螺旋升角
詳見(jiàn)性能及參數(shù)表
6. 軸承位置
|
符號(hào) |
軸承配置形式 |
|
無(wú) |
內(nèi)置式 |
|
W |
外置式 |
7. 泵進(jìn)口位置（從泵頭升出軸端看）
|
符號(hào) |
泵進(jìn)口方向 |
|
無(wú) |
表示泵進(jìn)口位置在右邊 |
|
Z |
表示泵進(jìn)口位置在左邊 |
五、3G三螺桿泵選型
選泵要點(diǎn)
1. 首先應(yīng)根據(jù)油品的粘度選擇適當(dāng)?shù)谋棉D(zhuǎn)速，以保證泵的（NPSH）r能滿足用戶的實(shí)際吸入條件。
2. 介質(zhì)粘度V＞760mm2/s時(shí)，請(qǐng)與我廠聯(lián)系，我廠幫助用戶先泵。
3. 從性能表中選定泵的規(guī)格及相應(yīng)粘度下的壓力流量后，可以查到泵的軸功率N，選定配套電機(jī)功率Nm時(shí)應(yīng)功率備量。
Nm≥K×N其值參見(jiàn)下表：
|
N（Kw） |
N≤5 |
5＜N≤10 |
10＜N≤50 |
N＞50 |
|
K |
1.25 |
1.2 |
1.15 |
1.1 |
4. 材料的選擇
①輸送柴油、重油（燃料油），泵套用錫青銅。
②輸送潤(rùn)滑油、液壓油，泵套用灰鑄鐵、球鐵、錫青銅。
③輸送植物油，或含酸和堿等腐蝕性液體，泵體、螺桿、泵套等零件采用不銹鋼或其它耐腐蝕材料。
六、3G三螺桿泵型號(hào)：
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3G35*4-46 |
3G35*3-52 |
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3Gr36*4 |
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3Gr42*4A |
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3G45*4-36 |
3G45*3-46 |
3G45*2-52 |
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3G50*3-44 |
3G50*3-46 |
3G50*2-52 |
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3Gr50*2 |
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3G60*4-40 |
3G60*3-46 |
3G60*3-52 |
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3G70*3-46 |
3G70*2-49 |
3G70*2-52 |
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3Gr70*4 |
3Gr70*2 |
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3G80*3-27 |
3G80*3-36 |
3G80*2-40 |
3G80*2-46 |
3G80*2-46 |
3G80*2-52 |
|
3G85*2-46 |
3G85*3-46 |
3G85*3-49 |
3G85*3-52 |
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3Gr85*2 |
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3G90*2-46 |
3G90*2-49 |
3G90*2-52 |
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3G100*4-40 |
3G100*3-44 |
3G100*3-46 |
3G100*3-52 |
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3Gr100*2 |
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3G110*3-46 |
3G110*2-52 |
3G110*2-54 |
3G110*4-40 |
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3Gr110*2 |
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3G120*4-36 |
3G120*3-46 |
3G120*2-49 |
3G120*2-52 |
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3G130*4-36 |
3G120*3-40 |
3G130*3-44 |
3G130*3-46 |
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3G140*3-46 |
3G140*2-49 |
3G140*2-52 |
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3G150*3-46 |
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3G160*3-46 |
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3G180*3-40 |
3G180*3-44 |
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3G200*3-36 |
3G200*3-40 |
3GS200*3-27 |
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3G35*4-46 |
3G35*3-52 |
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3Gr36*4 |
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3Gr42*4A |
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3G45*4-36 |
3G45*3-46 |
3G45*2-52 |
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3G50*3-44 |
3G50*3-46 |
3G50*2-52 |
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3Gr50*2 |
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3G60*4-40 |
3G60*3-46 |
3G60*3-52 |
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3G70*3-46 |
3G70*2-49 |
3G70*2-52 |
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3Gr70*4 |
3Gr70*2 |
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3G80*3-27 |
3G80*3-36 |
3G80*2-40 |
3G80*2-46 |
3G80*2-46 |
3G80*2-52 |
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3G85*2-46 |
3G85*3-46 |
3G85*3-49 |
3G85*3-52 |
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3Gr85*2 |
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3G90*2-46 |
3G90*2-49 |
3G90*2-52 |
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3G100*4-40 |
3G100*3-44 |
3G100*3-46 |
3G100*3-52 |
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3Gr100*2 |
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3G110*3-46 |
3G110*2-52 |
3G110*2-54 |
3G110*4-40 |
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3Gr110*2 |
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3G120*4-36 |
3G120*3-46 |
3G120*2-49 |
3G120*2-52 |
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3G130*4-36 |
3G120*3-40 |
3G130*3-44 |
3G130*3-46 |
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3G140*3-46 |
3G140*2-49 |
3G140*2-52 |
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3G150*3-46 |
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3G160*3-46 |
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3G180*3-40 |
3G180*3-44 |
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3G200*3-36 |
3G200*3-40 |
3GS200*3-27 |
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3G35*4-46 |
3G35*3-52 |
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3Gr36*4 |
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3Gr42*4A |
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3G45*4-36 |
3G45*3-46 |
3G45*2-52 |
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3G50*3-44 |
3G50*3-46 |
3G50*2-52 |
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3Gr50*2 |
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3G60*4-40 |
3G60*3-46 |
3G60*3-52 |
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3G70*3-46 |
3G70*2-49 |
3G70*2-52 |
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3Gr70*4 |
3Gr70*2 |
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3G80*3-27 |
3G80*3-36 |
3G80*2-40 |
3G80*2-46 |
3G80*2-46 |
3G80*2-52 |
|
3G85*2-46 |
3G85*3-46 |
3G85*3-49 |
3G85*3-52 |
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3Gr85*2 |
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3G90*2-46 |
3G90*2-49 |
3G90*2-52 |
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3G100*4-40 |
3G100*3-44 |
3G100*3-46 |
3G100*3-52 |
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3Gr100*2 |
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3G110*3-46 |
3G110*2-52 |
3G110*2-54 |
3G110*4-40 |
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3Gr110*2 |
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3G120*4-36 |
3G120*3-46 |
3G120*2-49 |
3G120*2-52 |
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3G130*4-36 |
3G120*3-40 |
3G130*3-44 |
3G130*3-46 |
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3G140*3-46 |
3G140*2-49 |
3G140*2-52 |
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3G150*3-46 |
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3G160*3-46 |
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3G180*3-40 |
3G180*3-44 |
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3G200*3-36 |
3G200*3-40 |
3GS200*3-27 |
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3G35*4-46 |
3G35*3-52 |
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3Gr36*4 |
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3Gr42*4A |
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3G45*4-36 |
3G45*3-46 |
3G45*2-52 |
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3G50*3-44 |
3G50*3-46 |
3G50*2-52 |
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3Gr50*2 |
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3G60*4-40 |
3G60*3-46 |
3G60*3-52 |
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3G70*3-46 |
3G70*2-49 |
3G70*2-52 |
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3Gr70*4 |
3Gr70*2 |
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3G80*3-27 |
3G80*3-36 |
3G80*2-40 |
3G80*2-46 |
3G80*2-46 |
3G80*2-52 |
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3G85*2-46 |
3G85*3-46 |
3G85*3-49 |
3G85*3-52 |
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3Gr85*2 |
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3G90*2-46 |
3G90*2-49 |
3G90*2-52 |
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3G100*4-40 |
3G100*3-44 |
3G100*3-46 |
3G100*3-52 |
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3Gr100*2 |
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3G110*3-46 |
3G110*2-52 |
3G110*2-54 |
3G110*4-40 |
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3Gr110*2 |
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3G120*4-36 |
3G120*3-46 |
3G120*2-49 |
3G120*2-52 |
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3G130*4-36 |
3G120*3-40 |
3G130*3-44 |
3G130*3-46 |
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3G140*3-46 |
3G140*2-49 |
3G140*2-52 |
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3G150*3-46 |
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3G160*3-46 |
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3G180*3-40 |
3G180*3-44 |
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3G200*3-36 |
3G200*3-40 |
3GS200*3-27 |
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