800-253-5500 sales@natvac.com 2707 Aero Park Drive Traverse City, MI
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Bringing you the best in mobile vacuum solutions and beyond.

At National Vacuum Equipment, we focus on unbeatable performance and reliability. Our products support a range of industry applications from portable sanitation to wastewater management, crude oil disposal and more. Intelligently designed and expertly manufactured in USA, our ever-evolving products are more than just efficient, they’re also sustainable and cost-effective.

We believe in survival of the toughest machinery. That’s why, our solutions – ranging from vacuum pumps, valves and tank components – are built for easy installation, maintenance and high productivity, even under the most demanding conditions.

Our Challenger Series of Vacuum Pumps and blowers, namely the 43 Series Vacuum Blowers and 607 Pro Heavy Duty Vacuum Pumps are some of most popular solutions in the market. Both known their power and dependability.

Explore our full list of products below or click here get in touch with our experts.

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Frequently Asked Questions

Contact us for further questions

Who do I call if I have questions or need help?

Feel free to give us a call Monday thru Friday 8:30 am – 5:00 pm at 1-800-253-5500 and our team would be glad to help!

You can also contact the sales representative in your area.

Midwest to West Coast region

Mike Rost  479-409-6748

East Coast region

Jeff McDonald  860-830-8285

South Central region

Jason Reading  231-360-1048

Mike Chouinard  231-409-3929

What kind of warranty does my Challenger vacuum pump come with?

Challenger Vacuum pumps come with a two year warranty against manufacturer defects and a lifetime warranty on rotary vane pump casing against cracking.

What RPM should I run my Challenger vacuum pump or blower?

304 Challenger vacuum pump – 1200 -1400 RPM

607 Challenger vacuum pump – 1100 – 1250 RPM

866 Challenger vacuum pump – 900 – 1000 RPM

887 Challenger vacuum pump – 1100 – 1200 RPM

4307 High vacuum blower – Minimum Speed is 2500 RPM and recommended speed is 4000 RPM

4310 High vacuum blower – Minimum Speed is 2500 RPM and recommended speed is 4000 RPM

1600 High vacuum blower – 2500 – 3600 RPM 

What is the shaft size of my Challenger vacuum pump or blower?

304 Challenger vacuum pump – 1 1/4″ with 3/16” key

607 Challenger vacuum pump – 1 1/2″ with 3/8” key

866 Challenger vacuum pump – 1 3/4” with 3/8” key

887 Challenger vacuum pump – 1 3/4” with 3/8” key

4307 High vacuum blower – 1 1/2” with 3/8” key

4310 High vacuum blower – 1 1/2” with 3/8” key

1600 High vacuum blower – 1 7/8” with 1/2″ key

B250 High vacuum blower – 1 3/8” with 5/16″ key

What are the hydraulic recommendations for my Challenger vacuum pump?

Note: customer should install a case drain and plumb back to tank to alleviate over pressuring the hi pressure seal in the motor.

304 Challenger Vacuum Pump

Equipped with a Permco motor M124A882UMDA20-86

Hydraulic pump should supply 16 gpm @ 2000 psi to turn at 1250 rpm

Hydraulic pump should supply 17 gpm @ 2000 psi to turn at 1250 rpm

607 Challenger Vacuum Pump

Equipped with a Permco motor M5151A731NMZK20-00 (NV)

Hydraulic pump should supply 34 gpm @ 2000 psi to turn at 1250 rpm

866 Challenger Vacuum Pump

Equipped with a Permco motor M7600A731A0XQ2000

Hydraulic pump should supply 38-40 gpm @ 2000 psi to turn at 900-1000 rpm

887 Challenger Vacuum Pump

Equipped with a Permco motor M7600A731A0XQ2000

Hydraulic pump should supply 45-46 gpm @ 2000 psi to turn at 1150 rpm

4307 High Vacuum Blower

Recommend a closed loop hi pressure system. Contact your hydraulic specialist.

4310 High Vacuum Blower

Recommend a closed loop hi pressure system. Contact your hydraulic specialist.

1600 High Vacuum Blower

Recommend a closed loop hi pressure system. Contact your hydraulic specialist.

What type of oil should I use with my Challenger vacuum pump?

We recommend an ISO 150 turbine oil for optimum vacuum pump performance. You may also any type oil you prefer, as long as you monitor your operating temperatures and keep your pump within the proper operating range.

How much oil does my Challenger vacuum pump use?

It depends on the model of vacuum pump you have but typically will use 8-10 ounces per hour of usage.

How often do I need to clean the inlet filter to my vacuum pump?

Clean the filter weekly.

What flushing fluid can I use in my challenger vacuum pump or blower?

Typically diesel fuel, but can be any cleaning liquid that has a lubricating property. Flushing fluid should not be stored in the flushing fluid tank. Only fill it with the fluid required to flush at the time for flushing.

How often should I check my vanes?

Inspect the vanes every year. A vane is worn to the point of replacement when it is 1/4” below the rotor surface.

How can I make my vacuum pump last?

Properly set vacuum and pressure relief valves and run the vacuum pump at the correct RPM.

What is the recommended maintenance on a Challenger vacuum pump?

WEEKLY:

1. Ensure vacuum pump is clean – wash mud and dirt off

2. Ensure vacuum hoses are not leaking, kinked or collapsed

3. Make sure the oil lines on the vacuum pump are not leaking

4. Make sure the oil pump is working on the vacuum pump

            -Always mark the level of oil in reservoir. Run the pump and ensure level decreases

5. Inspect the condition of the drive coupler

6. Diesel flush the vacuum pump

7. Inspect and clean the inlet filter on the vacuum pump

8. Make sure the vacuum and pressure reliefs are set not to exceed manufacturers specifications

9. Inspect the drive line and grease if necessary

MONTHLY:

10. Oil level in the 3-shaft gearbox is correct – oil level should be to center of the shaft

11. Inspect and clean the primary and secondary shut-offs

12. Inspect the condition of the rubber seat, SS ball, ball cage, and gasket in the primary and

       secondary shut-offs

YEARLY:

13. Repeat monthly checklist

14. Inspect vacuum pump for vane wear

15. Remove the pump end-plate and inspect vane and cylinder wear

16. Drain oil reservoir and clean

17. Drain and refill the 3-shaft gearbox with 90 weight gear oil

18. Notify maintenance or refer to maintenance guides(s) for any operation changes in your vacuum

       pump or system performance

What is included in the Challenger vacuum pump repair kit?

A vacuum pump repair kit comes with the seals, gaskets and vanes for the vacuum pump. You can order the repair kit with and without bearings.

Do I need to clean my remote oil tank?

Yes, you will need to inspect and keep the stainless steel filter clean in the bottom of the remote oil tank.

What kind of oil does my 3 shaft gearbox use on my Challenger vacuum pump?

80W-90 gear oil

What kind of oil does my 3 shaft gearbox use in my NVE blower?

ISO 220 synthetic gear lube

How often should I drain my oil catch muffler?

Once a day minimum.

How often should I drain my secondary moisture trap?

After each load or once a day minimum.

I have an NVE valve, can I rebuild it?

Yes! The great thing about NVE valves is that they are completely re-buildable! You can buy replacement o-rings or all the internal parts.

What do I do if my Span vac gauge is stuck at 25”?

There are a couple things to look at:

• If there is fluid in the line from the pump to the gauge, vacuum can be trapped in the gauge. Please check that line.

• The gauge panel is designed to pop out and lay flat while gauges remain installed. There is a vent on the back of the vac gauge which can be used to reset or calibrate the gauge.

What gear oil do I use in the front and rear sump of my 4307, 4310, and or 1600 blower

ISO 220 synthetic – Example SUMMIT SYNGEAR SH-7220 or equivalent

Can my vacuum pump housing be bored or machined out?

Yes the housing can be machined or bored to .060” over the original ID of the housing.

• 607 original ID of housing is 7.875” – Max ID is 7.935”

• 866 original ID of housing is 10.00” – Max ID is 10.060”

If the housing is lightly scared you can hone it out with a cylinder hone tool or use a dingle ball or flex hone tool.

Why does my pump slow down when I go to higher vacuum?

Hydraulic drive

 Hydraulics under sized

Flow control valve stuck open

Hydraulics motor or pump may be worn

 

Gearbox Drive

• Loose hub or torn element.

Automatic truck, PTO clutch plate slipping

How do I get my tracking information?

Every tracking number is listed on the invoice. Everyday we send the invoice by email to the accounting contact your company provided to us. Please contact your accounting department to get the tracking information from the invoice.

My vacuum pump or blower does not turn when I engage the PTO.

• Coupler between the gearbox and vacuum pump or blower may be damaged or broken

• Key on the gearbox shaft or vacuum pump or blower shaft sheared off

• Yoke attached to the gearbox shaft may be broken or set screw has come loose