800-253-5500 sales@natvac.com 2707 Aero Park Drive Traverse City, MI
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43 Series Heavy Duty Vacuum Blowers

Made in the USA

The 43 Series are a heavy-duty tri-lobe blowers, designed to be used in liquid waste pumping applications where extended operation is desired. This pump is dependable for applications in the industrial waste industry and many more. You can count on the 43 Series vacuum blower to give you years of reliable service, as well as the superior support that NVE staff provides. We engineer, fabricate, and manufacture our products in Traverse City, Michigan.

Feature and Benefits

  • Continuous duty performance at maximum vacuum
  • Tri-lobe design with precision machining
  • Ballast port manifold cools blower through air injection
  • Range of airflow performance available to accommodate power
  • Oil-less operation
  • 4” hose barbed adjustable porting for the intake and exhaust
  • Integral final filter with easy access cleaning
  • 4-Way pressure/vacuum change over valve
  • Designed, built, and supported in the USA

* The maximum allowable operating vacuum will vary depending on R.P.M., ambient temperature, altitude and time running. The basic principle to keep in mind is – faster R.P.M., higher air temperature and longer run time all equal more heat in blower. When installing an NVE 4307 or 4310 blower we recommend a normal R.P.M. of 4000. Other speeds are OK as long as exhaust gas temperatures read on the supplied thermometer do not exceed 380 degrees F. Maximum of 4500 R.P.M is for intermittent use only (4310).

SPECIFICATIONS 4307 4310
Air flow - free air 560 CFM 940 cfm @ 4500 rpm
*Full vacuum - -
Maximum pressure 15 psi 15 psi
Maximum pressure 4000 rpm 4000 rpm | 4500 rpm
Hp required @ 27” hg 36.4 51.4 | 58
Hp required @ 10 psi 28.4 39.7 | 44
Hp required @ 15 psi 40.6 65.5 | N/A
Porting size 4” 4”
Shaft size (3/8” key) 1 1/2” 1 1/2”
Blower dimension L 24 15/16” W 20 1/4” H 29 1/2” L 27 11/16” W 23 7/16” H 26 15/16”
Approximate weight 421 lbs 456 lbs

PRO PACK FRAME MOUNT GEARBOX DRIVE

  • Improved slim design
  • 3/8“ powder coat painted frame
  • Stainless steel cabinet
  • Easily accessible service points
  • Blower flush kit
  • Internal ballast silencing
  • Ballast check valve for pressure operation
  • 500 series right angle 1:2 ratio gearbox
  • 4310 – spiral beveled gear
  • 4310 L 45 1/4” W 28 3/8” H 26 15/16”
  • 4310 With Ultra L 45 1/4” W 38 3/8” H 26 15/16”
  • 4307 L 44” W 28 3/8” H 29 3/4”

PRO PACK FRAME MOUNT BELT DRIVE

  • 3/8“ powder coat painted frame
  • Stainless steel cabinet
  • Easily accessible service points
  • Blower flush kit
  • Internal ballast silencing
  • Ballast check valve for pressure operation
  • Belt drive is 2.5:1 speed up ratio
  • 4310 – L 46 15/16” W 39 11/16” H 29 3/4”
  • 4307 – L 46 15/16” W 36 3/16” H 29 7/8”

PRO PACK BELLY MOUNT HYDRAULIC DRIVE

  • 3/8“ powder coat painted frame
  • Stainless steel cabinet
  • Easily accessible service points
  • Blower flush kit
  • Ballast check valve for the pressure operation
  • Integral horizontal exhaust silencer
  • SAE C face hydraulic adapter
  • 4310 – L 58 5/8” W 58 5/8” H 26 5/8”
  • 4307 – L 57” W 58 5/8” H 26 5/8”