液环真空泵

大气量，905

气量3,000至13,000 ACFM（5,000至22,000 m3/h）

NASH 905液环真空泵系列经过优化，优佳的可行性和性能*过现有904和CL型。气量范围从3,000至13,000 ACFM（5,000至22,000 m3/h） 905是化工工艺、造纸、采矿、地热发电或任何需要可行地压缩腐蚀性气体的应用之理想选择。

描述

快效、可行、性能优佳

905液环真空泵和压缩机系列是经过证明的904型的升级产品，其设计旨在提供经改进的性能和可行性。

905以经改进的可变端口设计降低生命周期成本，扩大操作范围，提快效率，节水和使用更简单的密封管道。它还包括获得自主研发设计的GSV设计，可在高度真空下提供优佳的性能和使用寿命。

专为要求苛刻的环境而设计

905系列设计为向化学处理、造纸、采矿、地热发电或任何需要可行压缩腐蚀性气体的恶劣应用提供可行的操作和性能。905由316L不锈钢制成，具有出色的耐腐蚀性，可使用各种机械密封。

作为真空泵和压缩机运行时，其排放压力范围为36 psia（2.5 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。

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：3,000至13,000 ACFM（5,000至22,000 m3/h）

真空范围：至3.5 inHgA（至120 mbar abs.）

排气压强范围：36 psia (2.5 bar abs.)

压差： 至22 psi（至1.5 bar）

轴密封：填料函（标准） 按要求的机械密封（单端/双端）

结构材料：316L不锈钢

Liquid Ring Vacuum Pump

Large Capacity, 905

Capacity 2,800 to 13,000 ACFM (4,800 to 22,000 m3/h)

The NASH 905 liquid ring vacuum pump series has been optimized to deliver superior reliability and performance over the existing 904 and CL models. With capacities ranging from 2,800 to 13,000 ACFM (4,800 to 22,000 m3/h) the 905 is ideal for applications such as chemical processing, paper, mining, geothermal power generation or anywhere reliable compression of corrosive gases is needed.

Description

Efficient And Reliable With Proven Performance

The 905 liquid ring vacuum pump and compressor series is an upgrade to the proven 904 model and has been engineered to deliver improved performance and reliability.

The 905 provides lower life-cycle costs with an improved variable port design, enabling a wider operating range with improved efficiency, water-saving technology, and simpler seal line piping. It also includes a patented gas scavenging feature to provide superior performance and longevity at high vacuum levels.

Designed To Operate In Demanding Environments

The 905 series has been engineered for reliable operation and performance in harsh applications such as chemical processing, paper, mining, geothermal power generation, or anywhere reliable compression of corrosive gases is needed. Constructed of 316L stainless steel the 905 offers excellent corrosion resistance and can be outfitted with a variety of mechanical seals.

Operates As A Vacuum Pump & Compressor With A Discharge Pressure Range Of 30 psia (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.

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 chance of flooded start

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

Technical Data

905 Capacity Chart

Suction Capacity: 2,800 to 13,000 ACFM (4,800 to 22,000 m3/h)

Vacuum Range: to 4 inHgA (to 135 mbar abs.)

Discharge Pressure Range: 30 psia (2 bar abs.)

Differential Pressure: to 15 psi (to 1 bar)

Shaft Seals: Stuffing Box (standard), Mechanical Seals (single acting/ double acting) on request

Materials of Construction: 316L Stainless Steel