NVE Challenger 43 Series User manual

National Vacuum Equipment
National Vacuum Equipment
National Vacuum Equipment
800-253-5500 natvac.com
Owner’s Manual
43 Series Challenger Tri-Lobe Blower
MADE IN THE USA

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© 2019 National Vacuum Equipment, Inc.
Revision: 8 (Released) August, 2017
No part of this manual may be reproduced without the written permission of
National Vacuum Equipment, Inc.
4307 & 4310 BLOWERS
Owner’s Record
Date of Purchase: _________________________
Purchased from: __________________________
Serial Number: ____________________________

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CONTENTS
Introduction ........................................................................................... 5
About National Vacuum Equipment, Inc..............................................................5
Our History ...................................................................................................................5
Limited Warranty................................................................................. 6
Warranty.......................................................................................................................6
Warranty Procedures ................................................................................................7
4307 & 4310 Tri-Lobe Blowers.................................................... 8
General Blower Operation........................................................................................8
General Blower Construction ..................................................................................8
Blower Specications ...............................................................................................9
Location of Serial Number.......................................................................................9
Operating Environment.............................................................................................9
Operating Limits.........................................................................................................9
Performance (Reference Only)............................................................................ 10
Dimensions............................................................................................................... 11
Air Flow Control........................................................................................................ 11
Sound Level .............................................................................................................. 11
Limitations on Use .................................................................................................. 12
Storage ................................................................................................ 13
Unpacking Blower ................................................................................................... 13
Handling .................................................................................................................... 13
Preservation ............................................................................................................. 13
Installation.......................................................................................... 14
Rotation and Airow............................................................................................... 14
Diesel Engine Precautions.................................................................................... 14
Direct Coupler Installation & Alignment ........................................................... 14
Belt Drive ................................................................................................................... 15
Drive Shaft ................................................................................................................ 15
Hydraulic Drive......................................................................................................... 15
PTO Drive................................................................................................................... 16
Plumbing and Piping.............................................................................................. 16

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Recommended Accessories...........................................................17
Exhaust Silencer........................................................................................................17
Ballast Silencer..........................................................................................................17
Inlet Filter.....................................................................................................................17
4-Way Valve and Hoses ...........................................................................................17
Pressure Relief Valve................................................................................................17
Vacuum Relief Valve.................................................................................................17
Check Valves ..............................................................................................................17
Primary Shutoff .........................................................................................................17
Secondary Shutoff/Moisture Trap ........................................................................17
Bag House...................................................................................................................17
Operation...............................................................................................19
Initial Start Up Preliminary Checks.......................................................................19
Starting the Blower...................................................................................................19
Operating ....................................................................................................................19
Stopping the Blower .................................................................................................19
Cold Weather Operation..........................................................................................20
Maintenance.........................................................................................21
Maintenance Schedule............................................................................................21
Oil Capacities and Recommendations................................................................22
Gear Casing Lube......................................................................................................23
Clean Out Procedure If Flooded ............................................................................23
Lubricant Schedule...................................................................................................23
Rebuilding...................................................................................................................23
Blower Housing Flush...............................................................................................24
Vacuum/Pressure Changover Valve .....................................................................24
Troubleshooting..................................................................................25
Parts Breakdown................................................................................29
4307 Parts Diagram ................................................................................................29
4310 Parts Diagram ................................................................................................30
4307 & 4310 Parts List.........................................................................................31
4307 & 4310 4-Way Intake Manifold Parts Diagram & Parts List..............33
Our History
INTRODUCTION

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INTRODUCTION
General Information
About National Vacuum Equipment
Congratulations! You now own a quality vacuum/pressure Blower proudly
manufactured in the U.S.A. by National Vacuum Equipment, Inc. You have not
only acquired a superior piece of equipment from a qualied dealer, you have
hired a team of vacuum experts. We stand ready to work with your dealer to
answer your questions and provide you with the information necessary to keep
your equipment in peak working condition.
Thank you for putting your trust in National Vacuum Equipment.
Our Mission
We are dedicated to the production and wholesale distribution of quality vacuum
system products at a reasonable price, on a timely basis. We are a “one-stop
shop” for manufacturers and distributors of vacuum equipment.
Our History
National Vacuum Equipment, Inc. was founded in 1980 by Bruce Luoma. The
Company started as a retailer of vacuum pumps. Soon after it started, the
Company secured the rights to exclusive distribution of the Battioni vacuum
pumps in North America. This helped the Company to evolve into its current
status as a wholesale supplier.
To reach the goal of becoming a full service supplier of vacuum system
components, the Company began fabrication of its own line of componentry,
purchased and developed its own line of vacuum pumps, and began purchasing
for resale, various valves and accessories.
Today, NVE has full service machine, fabrication and powder-coating shops
complete with CNC-controlled production equipment designed for close
tolerance work. The company has a highly trained staff, all of whom are
dedicated to quality.

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LIMITED WARRANTY
Warranty
National Vacuum Equipment, Inc. guarantees that the product it provides
is free of manufacturer’s defects, including materials and workmanship.
Properly installed and maintained product is warranted for a period of one
(1) year subject to the following conditions:
1. A properly completed warranty registration card must be received by
us within 30 days of sale to end user for pump sales to be considered
warrantable. All pumps received for warranty consideration must retain
the original NVE serial number tag.
2. The one (1) year period shall begin the day the product is shipped from
our warehouse, unless we are provided with an authentic copy of the
original resale invoice, in which case the one (1) year period shall begin
at such invoice date.
3. The covered product must be used in an application for which it was
intended. We do not recommend our product for particular uses or
applications.
4. Damage caused by improper use or lack of proper maintenance is not
warrantable.
5. Manufacturer’s liability under this or any other warranty, whether
express or implied, is limited to repair of or, at the manufacturers’
option, replacement of parts which are shown to have been defective
when shipped.
6. Manufacturer’s liability shall not be enforceable for any product
until National Vacuum Equipment, Inc. has been paid in full for such
product.
7. Except to the extent expressly stated herein, manufacturer’s liability
for incidental and consequential damage is hereby excluded to the full
extent permitted by law.
8. Manufacturer’s liability as stated herein cannot be altered except in
writing signed by an ofcer of National Vacuum Equipment, Inc.
9. Certain products provided by National Vacuum Equipment, Inc. are
covered by their respective manufacturer’s warranties (e.g., engines
used in the NVE engine drive packages). These products are not
covered by the National Vacuum Equipment, Inc. Manufacturer’s
Warranty.

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Warranty Procedures
Should a potential warranty situation arise, the following procedures must
be followed:
• Contact your dealer immediately upon the occurrence of the event and within
the warranty period.
• Customer must receive a return goods authorization (RGA) before returning
product.
• All serial-numbered products must retain the NVE serial number tag to be
qualied for warranty.
• Product must be returned to NVE intact for inspection before
warranty will be honored.
• Product must be returned to NVE freight prepaid in the most
economical way.
• Credit will be issued for material found to be defective upon our inspection,
based upon prices at the time of purchase.

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4307 & 4310 TRI-LOBE BLOWERS
NVE 4307 & 4310
TRI-LOBE BLOWERS
General Blower Operation
The NVE BLOWERS are severe duty vacuum
pumps, designed to be used in liquid waste
pumping systems where extended operation
is desired. The blower incorporates a ballast
air cooling system to provide superior cooling,
allowing for extended operation.
The air enters the intake under vacuum or at
atmospheric pressure. As the rotors rotate,
a xed volume of air is moved along the wall
of the cylinder towards the exhaust where
the pressure and temperature of the volume
of air increases. If the intake air is below
atmospheric pressure, cooling air will be drawn
in when the rotor tip passes the ballast port. The airow capacity of the machine
(in ACFM) is nearly proportional to the speed of the machine and is nearly
constant with changes in inlet or outlet pressures.
General Blower Construction
BALLAST INJECTION
BALLAST INJECTION
INTAKE
EXHAUST
BLOWER HOUSING
DRIVE ENDPLATE
NON-DRIVE ENDPLATE
DRIVE OIL
TANK
DRIVE ROTOR
IDLER ROTOR
DRIVE BEARINGS NON-DRIVE BEARINGS
OIL SLINGER
OIL SLINGER
TIMING GEARS
SEAL SLEEVE
SEAL RINGS
SEAL VENT

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Sereial Number
Location of Serial Number
Each blower should have a brass
colored tag with an embossed
serial number. In addition, the
serial number and blower direction
as assembled at the factory are
stamped into the top of the hous-
ing as shown:
Specifications
Operating Environment
The 4307 and 4310 blowers are designed to move atmospheric air. Do not use to
move explosive or corrosive gasses or operate the blower in an area with explosive
gases. Any materials in the intake air must be ltered and separated from the air by
means of an intake lter, moisture trap and/or a cyclonic lter.
The ballast inlet must be positioned and protected from ingesting debris, uid or
explosive gases.
Operating Limits
The blower must be operated within all limits at all times. This typically means the
blower performance is limited by the exhaust temperature and temperature rise over
ambient for the blower.
*Exhaust temp and temp rise limited, †Pressure rise is from inlet to outlet, ‡Temperature rise is exhaust
minus ambient temperature surrounding blower (note if enclosed)
Size
RPM Inlet Vac
Pressure
Rise+
(psig)
Exhaust
Pressure
(psig)
Inlet
Temp
(ºF)
Exhaust
Temp
(ºF)
Temp
Rise≠ Ballast
Inlet Temp
(ºF)
Max Min Max Max Max Max Max
4307 4000 2500 FULL VAC 14 10 * 380 235 *
4310 4500 2500 FULL VAC 14 10 * 380 260 *

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Vacuum (Inches of Mercury)
RPM 018 24 27 10
2400 HP 218 24 - 25
CFM 500
4000 HP 4 36 47 52 40
CFM 826
4500 HP 5 40 52 58 45
CFM 931
Performance (Reference Only)
Vacuum (Inches of Mercury) Pressure (PSI)
RPM 0 9 15 18 21 24 27 510
2000 HP 2.0 8 11 13 15 17 - 8 15
CFM 280
2500 HP 2.5 10 14 16 19 21 -10 18
CFM 349
3000 HP 311 17 20 22 25 28 12 22
CFM 419
3500 HP 3.5 13 20 23 26 29 32 15 25
CFM 489
4000 HP 4.0 15 22 26 30 33 37 17 29
CFM 559
4307
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
Weights and measurements are for reference only.