3NB （三缸） /5NB （五缸）系列往复高压活塞泵。多种规格，最高排出压力 60MPa ，理论流量 0.2 — 120m3/h；        设计特点是优选了参数，适当地增长了冲程，合理地降低了冲数，改善了泵的吸入性能，延长了易损件的寿命。该泵主要用于油田及其它工矿企业；用于钻井，修井以及远距离输送液体介质等作业。          该系列泵严格按照石油工业部SY5138标准和BG9234-1997生产，并按照标准进行出厂试验。  该泵吸收国内泵业之精华，设计先进、结构紧凑、体积小、泵效高、运行平稳、安全可靠、操作简便、产品制作精良、外形美观。每个品种的泵都有安全调压阀，泵压可以任意调节，并有油温、压力、自动保护。 结构型式：固定式、移动式 泵体结构：卧式、立式 传动型式：电机或柴油机，变速型式：皮带、齿轮、电磁调速、变频速、 主要零部件：机座（材料HT250）；泵体（材料：316、1Cr18Ni9Ti、2Cr13、 合金钢、碳钢化镀镍-磷合金防腐层）经热处理，避免疲劳破裂；曲轴（材料：35CrMo、42CrMo）经调质氮化处理、强度大、硬度高、耐磨耐用；活塞（材料：橡胶、聚氨酯），缸套：超性陶瓷、双金属；盘根密封（采用进口芳纶或碳素纤维）。 阀组型式：锥阀、平板阀、API阀等。经特殊处理，耐磨耐用。Water flooding（injection） pump used in oil field Application: To be used as special pump such as water flooding pump used in oil field and mining field, hyper pressure pump, ejection pump, dephosphorizing pump, high pressure cleaning pump, moistening pump, spraying pump, flowing pump, thick mud pump, sludge pump, pump for liquified carbon dioxide, detergent sludge pump, chemical pump, hydraulic pressure pump, oil transition pump, sea water pump etc. Absorbing quintessences of domestic pump industries, it has characteristics in advanced design, compact structure and compact pump body, high efficiency, steady run, safe and reliable performance, simple operation, excellent manufacture and nice appearance. There is safety regulating valve in every type of such pump. Pressure can be regulated freely. Oil temperature and pressure are protected automatically. Assembly type: horizontal or vertical. Transition type: electric motor or diesel; There are 4 ways of speed regulation,ie: by gear box, belt wheel, electromagnetic or frequency-changing. Main parts: Machine seat (material used: HT250) Pump body (material used: 1Cr18Ni9Ti, 2Cr13, 4140，Nickel-phosphorus alloy galvanized carbon steel layer) Heat treatment is applied to prevent fatigue crack. Crank shift (material used: 35CrMo, 42CrMo) Nitrogen hardening treatment is applied to attain strong strength, high hardness, durable and corrosion resistant feature. Piston、 LINER (material used: rubber，polyurethane，superior ceramic, Ni60 alloy nickel-coated wear resistant and anti-corrosive layer). Packing seal Imported imitating polyamide fiber（aramid fiber） or carbon constructional fiber are used. Splashing form of lubrication is used. Valve types: conical valve, plate valve, ARN valve . They are wear resistant and anti-corrosive after special treatment. Every pump is equipped with safety regulating valve. Pressure of pump can be regulated freely. Alarm protection for temperature of lubricating oil and inlet and out pressure of the pump are equipped.批发说明