液环真空泵

中等气量，Vectra GL

气量30至830 ACFM（50至1,400 m3/h）

NASH Vectra液环真空泵和压缩机系列以空前的生产效率提供更佳性能。Vectra GL型的气量范围从30至830 ACFM（50至1,400 m3/h）旨在为一般工业应用提供出色的可行性和性能。

描述

可行、快效、性能优佳

基于成熟可行的NASH锥形液环泵设计，Vectra系列通过多次工程升级提供优佳的性能和可行性。

内置机械密封消除轴泄漏

改进锥角，从而减小了泵的尺寸

获得自主研发设计的扫气技术可显著提高泵在高度真空下的性能

易于维护 – 使用成本低

Vectra GL泵易于维护，且经过改进，从而优化了性能并且提高了靠性。

轴承放置在外侧，无需拆卸泵即可通达。

泵体设计可减少作用在泵轴上的力

凸轮清洗可减少侵蚀磨损

作为真空泵和压缩机运行时，其排放压力范围为29 psia（2 bar abs.)

某些应用需要在某道工序中抽真空和压缩。我们的液环真空泵和压缩机可以在一台泵中处理气体，而不需要在两台独立的机器中完成 - 降低了成本并简化了安装。

可行、快效的锥形端口和转子配置

Nash的可变锥形端口设计于1932年获得自主研发设计，使压缩力抵消转子和轴的重量，从而尽量减少轴承的运行负荷。可变端口在整个工作范围内优化泵的性能。凭借不断创新，Nash的自主研发设计设计具有以下特点：

可选择的凸轮清洗方法，以尽量减小涉及固体的工作中侵蚀造成的损害

大压差能力

GSV设计可更大限度地减少气体从排放口漏到入口，从而提高容量，特别是在深度真空时

液体残留物耐受性高

侧面排放，以尽量减少满液启动的可能

自吸设计可消除在再循环系统中使用增压泵

技术数据

吸入流量：30至830 ACFM（50至1,400 m3/h）

真空范围：至1 inHgA（至33 mbar abs.）

排气压强范围：29 psia (2 bar abs.)

压差： 至14.5 psi（至1 bar abs.）

轴密封：单端机械密封

结构材料：球墨铸铁

Liquid Ring Vacuum Pump

Medium Capacity, Vectra GL

Capacity 115 to 830 ACFM (195 to 1,400 m3/h)

The NASH Vectra liquid ring vacuum pump and compressor series deliver optimum performance with unprecedented production efficiencies. The Vectra GL models, with capacity ranging from 115 to 830 ACFM (195 to 1,400 m3/h), are engineered to deliver outstanding reliability and performance for general industrial applications.

Description

Reliable & Efficient With Proven Performance

Based on proven reliable NASH conical liquid ring pump designs, the Vectra series delivers superior performance and reliability through several engineering upgrades.

Built-in mechanical seals eliminate shaft leakage

Improved cone angles, which decrease the size of the pump,

Patented Gas Scavenging Technology dramatically improves pump performance at high vacuum levels

Easy To Maintain - Low Total Cost of Ownership

The Vectra GL pump was engineered to be easy to maintain, with improvements that optimize performance and reliability.

Bearings placed outboard where they can be accessed without disassembly of the pump.

The pump body is engineered to reduce forces on the pump shaft

Lobe purges reduce erosion wear

Operates As A Vacuum Pump & Compressor With A Discharge Pressure Range Of 15 psig (2 bar abs.)

Some applications require vacuum and compression in one process. Instead of handling the gas with two separate machines, our liquid ring vacuum pump and compressor models can do the job with only one pump - reducing cost and simplifying installation.

Reliable & Efficient With Conical Porting And Rotor Configuration

Patented in 1932, Nash’s variable conical porting design allows the force of compression to counter the weight of the rotor and shaft to help minimize load on bearings during operation. The variable porting optimizes pump performance across the entire operating range. With constant innovation, Nash’s patented design features:

Option for lobe purge to minimize damage from erosion in duties with solids present

Large differential pressure capability

Gas scavenging feature minimizes slip of gas from discharge to inlet improving capacity, especially at deep vacuum

High liquid carryover tolerance

Side discharge to minimize the chance of flooded start

Self-priming design may allow the elimination of the booster pump in recirculated systems

Technical Data

Suction Capacity: 115 to 830 ACFM (195 to 1,400 m3/h)

Vacuum Range: to 2 inHgA (to 67 mbar abs.)

Discharge Pressure Range: 15 psig (2 bar abs.)

Differential Pressure: to 15 psi (to 1 bar abs.)

Shaft Seals: Mechanical Seals single acting

Materials of Construction: Ductile Iron