ZW series Roots type blower 2024

Product catalog summary

Product Overview

The ZW Series Three-Lobe Roots Type Blowers, developed by Shandong Zhangqiu Blower Co., Ltd., leverage over 50 years of design expertise and imported US technology. These blowers feature enhanced structure and performance, offering high efficiency at competitive costs for industrial air and gas movement.

Key Features

Compact, lightweight design facilitating easy operation and maintenance.
Wide flow range with multiple gradations for tailored model selection.
Air-cooled design enabling single-stage pressure up to 78.4 kPa without cooling water.
Advanced three-lobe impeller with high area utilization.
Precision hardened straight-tooth synchronous gears with keyless connection for reliable positioning, smooth operation, low noise, and long service life.
Optional sound enclosures reduce noise below 85 dB(A) per customer needs.

Performance Specifications

Pressure range: 9.8 to 78.4 kPa
Flow rate: 0.22 to 59.21 m³/min
Shaft power: 0.18 to 71.59 kW

Performance data is standardized at 20°C inlet temperature and 101.325 kPa ambient pressure.

Standard and Optional Accessories

Standard: Main unit, inlet silencer with filter, discharge silencer, pulleys, belts, belt guard, flexible joints, pressure relief valve assembly, check valve, base, pressure gauge, anchor bolts.
Optional: Motor, electrical control cabinet, sound enclosure, vibration isolators.

Performance Data and Drive Types

Detailed performance tables cover multiple ZW Series models with belt drive and direct drive configurations. Parameters include model number, bore size, rotational speed (rpm), inlet flow rate at various pressures or vacuum levels, shaft power, recommended motor power, and motor pole count. Data supports both pressure and vacuum operation modes.

Vacuum performance ranges from -9.8 kPa to -78.4 kPa absolute pressure, with flow rates and power consumption varying accordingly.

Technical Notes and Operating Conditions

Inlet flow rates measured under standard suction conditions: 20°C and absolute pressure 101.325 kPa.
Belt drive system used for power transmission in specified models.
Vacuum and pressure data tables enable precise blower selection based on operating conditions.

Noise and Installation

Noise levels measured per Chinese standard GB/T 2888, with data provided in dB(A).
Outline and installation drawings included for belt and direct drive configurations, differentiated for pressure and vacuum applications to ensure proper mounting and alignment.

ZSH Series Roots Type Vacuum Pumps

The ZSH-V and ZLB series are single-stage dry Roots vacuum pumps featuring patented backflow devices with multi-blade impellers and countercurrent apparatus. Inspired by advanced Japanese RR series designs and nearly 40 years of experience, these pumps offer:

Advanced structural design with multiple patented technologies.
Composite impeller blades for high efficiency.
High precision machining ensuring smooth operation and reliability.
Wide flow range from 2.9 to 194.5 m³/min and vacuum levels from -49 to -78.4 kPa.

Applications include power plant negative pressure ash removal, cement, metallurgy, pneumatic conveying, and foundry casting processes.

Critical Information and Best Practices

Performance data should be referenced at standard inlet air conditions (20°C, 101.325 kPa) for accurate blower and pump selection.
Noise compliance with GB/T 2888 ensures environmental and workplace safety.
Consult installation drawings carefully to distinguish between belt and direct drive setups and pressure versus vacuum applications.
Motor power and pole selection must align with operating requirements to optimize efficiency and reliability.
High precision machining is essential for vacuum pump smoothness, efficiency, and longevity.

Summary

The document comprehensively details the ZW Series Three-Lobe Roots Type Blowers and ZSH Series vacuum pumps, providing extensive performance data, technical specifications, and accessory options. The structured data and installation guidelines enable engineers to select and size equipment accurately for diverse industrial applications involving air and gas movement under pressure or vacuum conditions, ensuring efficient, reliable, and quiet operation.

Catalog excerpts

标准配套：主机，进口消声器( 含滤清器)，排气消声器，皮带轮，皮带，防护罩，弹性接头，泄压阀装置，单向 Standard accessories: inlet silencer(with filter), pulleys,belts, belts guard, pressure relief valve assembly, base, pressure 可选附件：电机，电控柜，隔声罩，减震器等 gauge, anchor bolts,discharge silencer,check valve,flexible joint 进口流量是指在标准吸入状态下(绝对压力101.325kPa,温度20℃)的进口空气流量 Performance based on inlet air at standard temperature of 20℃, an ambient pressure of 101.325kPa Belt Drive ZW Series Three-Lobe Roots Type Blower Pressure Performance Date Performance based on inlet air at standard temperature of 20℃, an ambient pressure of 101.325kPa 订货须知 Ordering instructions 压力：9.8~78.4 kPa 性能表说明 Performance table description According to cus tomer’s requirements,sound enclosures are avilable,which can make the sound levels up to 85dB(A) long life Use of precision hardened straight-tooth synchronous gears, keyless connection, positioning, smooth operation, low noise, high strength, Impeller with advanced structure, clover leaf, the area utilization factor Air-cooled structure, single-stage pressure is up to 78.4kPa without cooling water Flow sub-file encryption, extensive coverage, the user can choose the most appropriate models High efficiency, small size, light weight, compact structure, convenient operation and maintenance Zhangqiu Blower CO.,LTD, and have company’s 50-plus years of design and manufacturing experience. ZW blowers with higher capacity and

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Belt Drive ZW Series Three-Lobe Roots Type Blower Vacuum Performance Data Performance based on inlet air at standard temperature of 20℃, an ambient pressure of 101.325kPa Belt Drive ZW Series Three-Lobe Roots Type Blower Pressure Performance Date 各真空度下的进口流量Qs (m /min),轴功率La (kW)及所配电机功率Po (kW) Inlet Flow Qs (m³/min),Shaft Power La (kW) and Motor Power Po (kW) 进口流量是指在各真空度下，进口温度为20℃，出口为绝压101.325kPa的进口空气流量。 Performance based on inlet air at standard temperature of 20℃,and discharge at an ambient pressure of 101.325kPa. ZW系列三叶罗茨鼓风机皮带传动真空性能参数表 Belt Drive ZW Series Three-Lobe Roots Type Blower Vacuum...

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Belt Drive ZW Series Three-Lobe Roots Type Blower Vacuum Performance Data Performance based on inlet air at standard temperature of 20℃, an ambient pressure of 101.325kPa 进口流量是指在标准吸入状态下(绝对压力101.325kPa,温度20℃)的进口空气流量 Performance based on inlet air at standard temperature of 20℃,and discharge at an ambient pressure of 101.325kPa. 各排气压力下的进口流量Qs (m³/min),轴功率La (kW)及所配电机功率Po (kW) Inlet Flow Qs (m³/min),Shaft Power La (kW) and Motor Power Po (kW) 29.4kPa 39.2kPa 49kPa 58.8kPa 2.26 Direct Drive ZW Series Three-Lobe Roots Type Blower Pressure Performance Data ZW系列三叶罗茨鼓风机直联传动性能参数表 Direct Drive ZW Series...

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ZW Series Three-Lobe Roots Type Blower Noise Level ZW系列三叶罗茨鼓风机噪声值dB(A) ZW系列三叶罗茨鼓风机噪声值dB(A) （正压应用） Belt Drive ZW Series Three-Lobe Roots Type Blower Packages Outline Drawing (Pressure Application) 注：上述数据是按照GB/T 注：上述数据是按照GB/T 2888 <<风机和罗茨鼓风机噪声测量方法>>测得的数据 2888 <<风机和罗茨鼓风机噪声测量方法>>测得的数据 Note:The above Note:The date wereabove tested date acccording were tested to the acccording noise measurement to the noise method measurement of GB/T2888 method Blower of GB/T2888 and Roots Blower blower and Roots blower Note:The above date were tested acccording to the noise measurement method of GB/T2888 Blower a

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Belt Drive ZW Series Three-Lobe Roots Type Blower Packages Outline Drawing (Vacuum Application) Belt Drive ZW Series Three-Lobe Roots Type Blower Packages Outline Drawing (Pressure Application)

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Direct Drive ZW Series Three-Lobe Roots Type Blower Packages Outline Drawing (Pressure Application) Belt Drive ZW Series Three-Lobe Roots Type Blower Packages Outline Drawing (Vacuum Application)

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（真空应用） Direct Drive ZW Series Three-Lobe Roots Type Blower Packages Outline Drawing (Vacuum Application) ZSH 系列罗茨风机 / 真空泵 ZSH series Roots type blower/vacuum pump 产品简介 Product Introduction 有逆流装置的罗茨鼓风机、真空泵新结构》两项专利技术，借鉴吸收引进的日本 RR 系列罗茨鼓风机先进结构基础上，结合我公司近四十年的设计、制造经验，进行自主研发的新一代单级干式高真空罗茨真空泵。 ZSH-V ZLB series single stage dry Roots vacuum pump is using my company's proprietary "backflow device with multi-blade impeller ZSH-V、ZLB 系列单级干式罗茨真空泵，是采用我公司专有的《带逆流装置的多叶型叶轮正（负）压罗茨风机结构》与《带 positive (negative) pressure blower Structure" and "Roots blower with a countercurrent apparatus , vacuum pump new structure,...

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