Gardner Denver - CF - Eng. Vacuum Systems
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Engineered Vacuum Systems

2 Welcome to the World of Engineered Vacuum Systems One Name. Three times The Power For more than 100 years, three names have been synonymous with engineered vacuum system solutions for industrial applications: Lamson®, Hoffman® and Invincible®. Today, those legacies are joined, under the Gardner Denver name, creating the most comprehensive line of Engineered Vacuum Systems in the world – the Gardner Denver brand. Anchored in tradition, this new Gardner Denver Engineered Vacuum System line-up continues a century long commitment to providing customers with innovative design, a comprehensive...

3 Gardner Denver® Engineered Vacuum System - Industrial Application high velocity, low volume dust pickup for hand tools central vacuum — office work clean room central vacuum system wet pickup application with liquid separator Hoffco-Pulse secondary separator with continuous discharge overhead cleaning with wall rod and pipe brush portable vacuum system bulk pickup with material dropping out in hopper primary separator with continuous discharge Multistage centrifugal exhauster— industrial duty

4 Lamson and Hoffman Central Vacuum 1 10 100 1,000 10,000 100,000 0 2 4 6 8 10 12 14 16 18 20 The heart of any Vacuum System, whether central or portable, is the exhauster. Gardner Denver is in the unique position of offering various types of centrifugal and regenerative exhausters. Multistage Centrifugal – Cast Series Gardner Denver’s Lamson and Hoffman multistage centrifugal exhausters are the culmination of hundreds of years of collective manufacturing and design experience. Over 100,000 machines are in operation, worldwide. Lamson and Hoffman cast centrifugal exhausters represent the...

5 T-Series Fabricated Multistage Centrifugal These durable multistage exhausters have cast aluminum heads for greater efficiency, durability and stability. The four bearing design eliminates excessive load on the inner bearings, increasing bearing life. The four bearing design allows use of a short shaft motor, which is generally stocked at motor shops and is quickly and easily replaced without removing the rotating assembly. TST Series Standard Overhung Fabricated Multistage Centrifugal The standard overhung design of the centrifugal exhauster offers most of the advantages of the T-Series...

6 EVS Collectors The Two Basic Collector Classifications: Primary Collectors are used when large quantities of bulk solids are part of the collection process. Primary collectors are usually equipped with cone bottoms and often store solid particles for longer periods of time. Dust laden air and heavy particulate enter the collector tangentially at the top, outside a cylindrical baffle plate. Cyclonic action and reduced force precipitate the heavier material to the bottom of the tank. Up to 95% of the material is retained, with the remainder carried to the secondary collector for capture....

7 Exhauster Heavy-duty multistage centrifugal vacuum producer standard.5 to 20 Horsepower Ranges handling up to 8 operators simultaneously Collector Construction Heavy gauge carbon steel is standard, with stainless steel and other optional alloys available. Dust Bucket Capacity 1.5 to 3.0 cu.ft. Options: Electric Bag Shaker or Hoffco- Pulse Bag Cleaning System, in-line HEPA filter, cone bottom with adjustable legs Gardner Denver’s portable vacuum systems are mounted on a common frame and include the exhauster, motor and secondary type collector. The T-VAC portable can be equipped with a...

8 To fully realize the benefits of central or portable vacuum systems, it is necessary to have a variety of hoses and tools that are easy and practical to use. Gardner Denver has a complete line to meet your needs. In both 1½" and 2" sizes, there are six varieties of general duty hoses and four heavyduty hoses with static grounding. Floor rods, floor tools, bulk conveying tools, hand tools and utility tools are all available in many styles for every job, in 1½" and 2", as well as general duty and heavy-duty. A complete catalog of Gardner Denver hoses, tools and accessories is available....

9 Air-Lock Valves 8" single or double flanged for controlling material discharge from collectors. Whether manual or air operated, these valves are leakproof and selfcompensate for wear. Rotary and slide valves are also available. Automatic Air Bleed System Allows operation of vacuum cleaning system during low demand periods. Equalization Line Allows plastic liners to be securely positioned in collector dust buckets. In-Line Filters All vacuum systems can be fitted with HEPA absolute filters (99.97% effective on 0.3 micron size materials.) Collector Options Wet separators are available to...

10 Engineered Vacuum System Design Guide A multitude of tasks can be accomplished with an engineered vacuum system, comprised of a vacuum producer, separators and complementary components designed to match the exact application requirements. These applications include general cleaning, material recovery, capture of dangerous or hazardous dust and vacuum conveying of material. This guide will cover engineered vacuum system designs for general cleaning that will pick up and convey dry, free-flowing material that can enter and pass through the vacuum cleaning tool and hose. Step 1 Determine...

Air Volume Per Hose The hose diameter, particle size and amount of material to be conveyed determines the air volume. Most systems work well with a minimum of 80 SCFM in a 1.5" diameter hose. Heavier material may require increased airflow, ranging to 120 SCFM or more, for some material. 2" diameter hoses typically require 150 to 200 SCFM, depending upon conditions. Step 3 System Losses To choose the proper vacuum producer, system losses or resistance must be determined. Total loss consists of: 1. Loss through hoses and tools 2. Loss through lines (straight runs and bends) 3. Loss through...