液環(huán)真空泵

中等氣量，Vectra GL

氣量30至830 ACFM（50至1,400 m3/h）

NASH Vectra液環(huán)真空泵和壓縮機系列以空前的生產效率提供更佳性能。Vectra GL型的氣量范圍從30至830 ACFM（50至1,400 m3/h）旨在為一般工業(yè)應用提供出色的可行性和性能。

描述

可行、快效、性能優(yōu)佳

基于成熟可行的NASH錐形液環(huán)泵設計，Vectra系列通過多次工程升級提供優(yōu)佳的性能和可行性。

?內置機械密封消除軸泄漏

?改進錐角，從而減小了泵的尺寸

?獲得自主研發(fā)設計的掃氣技術可顯著提高泵在高度真空下的性能

易于維護 – 使用成本低

Vectra GL泵易于維護，且經(jīng)過改進，從而優(yōu)化了性能并且提高了靠性。

?軸承放置在外側，無需拆卸泵即可通達。

?泵體設計可減少作用在泵軸上的力

?凸輪清洗可減少侵蝕磨損

作為真空泵和壓縮機運行時，其排放壓力范圍為29 psia（2 bar abs.)

某些應用需要在某道工序中抽真空和壓縮。我們的液環(huán)真空泵和壓縮機可以在一臺泵中處理氣體，而不需要在兩臺獨立的機器中完成 - 降低了成本并簡化了安裝。

可行、快效的錐形端口和轉子配置

Nash的可變錐形端口設計于1932年獲得自主研發(fā)設計，使壓縮力抵消轉子和軸的重量，從而盡量減少軸承的運行負荷。可變端口在整個工作范圍內優(yōu)化泵的性能。憑借不斷創(chuàng)新，Nash的自主研發(fā)設計設計具有以下特點：

?可選擇的凸輪清洗方法，以盡量減小涉及固體的工作中侵蝕造成的損害

?大壓差能力

?GSV設計可更大限度地減少氣體從排放口漏到入口，從而提高容量，特別是在深度真空時

?液體殘留物耐受性高

?側面排放，以盡量減少滿液啟動的可能

?自吸設計可消除在再循環(huán)系統(tǒng)中使用增壓泵

技術數(shù)據(jù)

?吸入流量：30至830 ACFM（50至1,400 m3/h）

?真空范圍：至1 inHgA（至33 mbar abs.）

?排氣壓強范圍：29 psia (2 bar abs.)

?壓差： 至14.5 psi（至1 bar abs.）

?軸密封：單端機械密封

?結構材料：球墨鑄鐵

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