- ASV-Stubbe NMB离心泵
详细信息
ASV-Stubbe NMB系列联轴式离心泵的过液部件为塑料材质,轴密封为机械密封圈GLRD,流程式组装,流量:2-110m3/h,扬程2.5-60m,材质可选PP、PE-HD、PVDF。其他流量可选择NM、NMB-S、KHB等系列。
Suction and pressure connection acc.to EN22858, ISO2858Sizes: 32-125 upto 80-200
Capacity Q: upto 110 m³/h
Head H: upto 60 m
Operating temperaturet:
• PE upto +60°C
• PP upto +80°C
• PVDF upto +110°CThe ASV thermoplastic centrifugal pump
• for transportation of aggressive fluids like acids, alkalines and solvents
• constructional components highly resistantExecution
Construction
ASV thermoplastic chemical centrifugal pump type NMB is a single-stage spiral casing pump in horizontal construction with axial suction and radial pressure connection.
Low maintenance, space-saving compact pump. Pumphead with intermediate flange directly flanged at the motor. Motor (IEC standard) with extended stainless steel shaft for seat the impeller.
Nominal output and flange connections acc. to EN 22858.
The modular concept of the ASV thermoplastic centrifugal pump allows an easy and fast exchange of wear and tear parts.
The mounting of the pump into the line system is problemfree as an adjustment of the coupling is not necessary.
The hydraulic of the ASV centrifugal pump is made of few solid thermoplastic parts in order to guarantee high operational reliability. To ensure this reliability high chemical and wearing resistant thermoplastics like high molecular weight Polyethylene (PE),ultra high molecular weight low-pressure-Polyethylene (Hostalen GUR), Polypropylene (PP) or Polyvinylidene fluoride (PVDF) are used.
Absorption of external forces by robust metal casing. Drainholes on spiral casings on request.
Suction
The pump is not self-priming and has to be installed with positive liquid supply. Selfpriming can be arranged with the help of a footvalve (only for solid-free liquids) at the end of the suction line or the installation of an ASV self-priming container. Respective brochures are available.
Impeller
• closed radial impeller
• axial-thrust-compensation by relief holes
• impeller mounting independent of direction of rotation
• seal of impeller by impeller cap and internal O-ringShaft and shaft protection sleeve
• extended motor shaft made of stainless steel
• shaft protection sleeves made of resin impregnated carbon or thermoplastic depending on flow mediumShaft seal
• sealing of the shaft by single or double mechanical seals of various executions and brands
• circulation, flushing or quenching arrangeable depending on the application (see illustration)
• sliding surface combination in silicated carbon against silicated carbon, O-rings and liner of Viton (FPM) or Hypalon (CSM), metal parts of SS 1.4571or Hastelloy as standard execution and allows a wide range of application.
Materials in other combinations are also possible.Painting
• several coatings protect all metal parts of the pump
• special coating systems for higher protection available
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