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  1. RV Waste Valves
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Valterra EZ Valve Electric Waste Valve for RV Black Water Tank - 3" Hub to 3" Hub
Valterra

Valterra EZ Valve Electric Waste Valve for RV Black Water Tank - 3" Hub to 3" Hub

Part Number: E40B-8
$283.01
Retail:$343.95
You Save: $60.94
RV Waste Valves
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Replace the standard waste valve on your RV's black-water tank with this electric one so that you can open and close the valve with the flip of a switch. Light comes on when valve is open. Wiring harness and 2 switch plates included. Great Prices for the best rv waste valves from Valterra. Valterra EZ Valve Electric Waste Valve for RV Black Water Tank - 3" Hub to 3" Hub part number E40B-8 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Valterra RV Waste Valves - E40B-8

  • Single Waste Valve - Electric
  • Straight Valve
  • 3 Inch Hub
  • Valterra
  • Stationary Valve

Replace the standard waste valve on your RV's black-water tank with this electric one so that you can open and close the valve with the flip of a switch. Light comes on when valve is open. Wiring harness and 2 switch plates included.


Features:

  • Electric waste valve replaces or upgrades the waste valve on your RV's black-water tank
  • Easy operation with the flip of a switch
    • Valve opens to allow flow from your black-water tank
  • Light comes on when valve is open
  • Tool-free manual override
    • Remove pin, turn handle, and pull handle to open valve
  • High-torque, water-resistant electric motor
  • Built-in 5-amp breaker provides circuit protection
    • Resets with a push of a button - no fuses to replace
  • 3" Hubs slide onto your sewer pipes
  • Wiring harness, black and gray switch plates, seals, hardware, and installation instructions included
    • Switch plate installs in RV's control compartment
    • ABS solvent bond (A05-0303) sold separately for installation of valve
  • Compatible with 12V systems


Specs:

  • Passage diameter: 3"
  • Wiring length: 8'
    • Valve harness: 1'
    • Switch harness: 7'
  • Power draw: 2.5 amps


Valterra electric valve pieces

The switch plate, wiring, seals, and hardware needed to install this electric waste valve on your RV's black water tank are included. The switch plate installs in the RV's control panel. The waste valve secures to existing pipes using ABS solvent cement (A05-0303 - sold separately). A booklet with step-by-step instructions and a template for drilling are also included.


Valterra electric valve gray water switch

You can also adapt the valve to work with your gray-water tank. A gray switch plate is included for that purpose. For this installation, you will need to use adapters (sold separately) to convert the valve opening from 3" to 1-1/2" in diameter.


Valterra electric valve manual use

If you're dry camping or in the case of a power failure, the manual override is easy to use. Simply remove the pin from the valve's lift arm and turn the handle 90 degrees clockwise. Then pull the handle to open the valve.




E40B-8 Valterra Easy Valve Electric Sewer Waste Valve System for Motorhome - 3" Hub x 3" Hub





Customer Satisfaction Score:


Customer Reviews

Valterra EZ Valve Electric Waste Valve for RV Black Water Tank - 3" Hub to 3" Hub - E40B-8

Average Customer Rating:  4.7 out of 5 stars   (104 Customer Reviews)

Replace the standard waste valve on your RV's black-water tank with this electric one so that you can open and close the valve with the flip of a switch. Light comes on when valve is open. Wiring harness and 2 switch plates included.

by:

Got it today thought I’ll probably put in Saturday and as I took it out of the box the manual lever lock was broke and filed down to make it look like it was meant to be. And it also said that it comes with the black and gray water switch, it only came with the black tank one. Direction should have been included, right nope.

Katrina B. profile picture
Etrailer Expert

Katrina B.

6/30/2023

I am sorry to hear that this arrived damaged. I have sent your information over to our customer service department for them to get this corrected for you.



by:

The valve was great, but the price high.



by:

Item arrived on time and was packed wel l.



by:

Install a little hard but valve worked great.



by:

This replaced a mechanical one I had for the black water. It was a relatively easy install, the install of the valve was straightforward and the wiring for the switch was easy with the worse being choosing a location and drilling the switch mounting area. Works great and hasn’t had any problems



by:

This is a very nice easy hookup, 2 wire install. This valve is being used on a 1010 gallon tanker trailer for an agricultural application. The valve comes prewired with heavy duty wiring and very sturdy crimped on connectors. The lighted activation switch is mounted into a faceplate with a 5 amp DC circuit breaker. Most attractive about this valve is the very reasonable price. This is a lot of valving for the price.



by:

The Valterra valves work great unless they get wet on the outside and then the electronics corrode and stop working. This happened twice in the past to me personally. If they sealed the motor they would be awesome, but I still love the convenience of the remote switch.



by:

Valve works as promised. Would have been helpful to have instructions and panel mounting screws but I have [on-line videos] and a can of spare hardware. I wonder if the manufacturer knew where I was mounting everything as the power connection plug was JUST the right length.



by:

These valves are fantastic, after a year of use they function flawlessly, and I don’t have to get on my knees anymore to pull those stupid valve handles.



by:

Is outstanding product make certain to order lots of wire however depending on where you want to run your switch. I wanted mine in my cabin next to my refrigerator.



by:

VERY good service and VERY quick delivery. They have a good system for taking orders, processing them and keeping the customer informed along the way.



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Everything they describe, and we tested and is working perfect



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by:

Perfect product.... my 72 yr old dad had the cable black water valve and had trouble pulling it when needed, so, I installed the Valterra EZ valve and put the electric switch inside for him and he loves it, no more outside in the cold or heat to dump the tanks.

Highly recommend this for anyone and was a easy install....



by:

Installation was easy…. Getting to them was the hard part.
Taking down the underbelly was less than fun. Cutting holes in it was even a worse idea.
But, installation went well. Great product, super fast open and close, easy to wire and made my own console for the switches which wasn’t hard either.

Had to put them in different directions due to the main sewer drain being in the way but the auto gate valves do not care which way they go, they work fine either way. Just hope they last as I really don’t like working on my back….



by:

I installed 3 of these valves on my RV, i've had them for a year now with no problems with the valves themselves the only issue was one of the switch red lights that lets you know it's open went out but really don't need it, I am very pleased



by:

it makes it easy for anybody to dump the tank great product



by:

Nice valve for remote operation . The wiring is 4 ft from switch to motor/valve, and 3 ft of wire for power. I replaced power wire with a 10 ft piece which was only $9 bucks. Take pic of switch wiring cause you need to remove wires from switch to pass wires through any holes you drill in floor and cabinets, etc . Watch out for water , electric wires when drilling holes. Hole needs to be at least 1/2”for wire ends to pass through. If wood is thick I would do 5/8” hole . Pass big wire ends through first and smaller next. Or cut wire ends off and recrimip new ends after running wires.



by:

Except for having to make some minor modifications to my flanges (they were bowed out between the bolt holes) so the actuators were clearing the flange, the install was easy. The flange issue is not the valve manufacturers fault, just how the flange was made. My old valves were cable style and cheap and these will be a great upgrade on Leaky crappy valves. I was tired of getting the sewer surprise every time I dumped. etrailer delivered on time and at a good value.



by:

Every things was in the package , arrive at the time its was schedule .
The installation went very good and easy , to dot it your self if you are manuel its will work find.
I change a existing cable valve with this electric waste valve , the only bad situation was to work under the RV .
The valve work great .



by:

I replaced the 2 manual valves with 2 E40A-8’s...one of the best upgrades I’ve done with my Renegade RV.... Easy installation......Great product..... Great price..... Thanks etrailer.... You’re still the best.....


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See what our Experts say about this Valterra RV Waste Valves

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    You linked to the Valterra EZ Valve Electric Waste Valve for RV Black Water Tank, # E40-8 a 3" Hub to 3" Spigot. The difference between a hub connection and a spigot connection is that the hub is the female end and has a lip on the inside that stops the spigot (or male) end. Please note the three options of a 3" Hub to 3" Hub - # E40B-8, 3" Hub to 3" Spigot - # E40-8 or 3" Spigot to 3" Spigot - # E40A-8. I suggest you remove the current component and examine what you have. For installation,...
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  • Does the Valterra EZ Valve Electric Waste Valve Require Routine Maintence?
    The Valterra EZ Valve Electric Waste Valve for RV Black Water Tank item # E40B-8 may benefit from being installed up in your enclosed underbelly with the Valterra ABS Solvent Cement item # A05-0303 to help prevent the sewer pipes from freezing if you camp when the weather is cold. This will also protect the valve from damage caused by road debris while you are driving. Other than that there are no suggested routine maintenance schedules to follow. You will definitely want to keep the motor...
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  • Can Center Section of Electric Waste Valve E40B-8 Replace Manual Setup
    To make your life easier you could just remove the center section of your current waste valve and then install just the center section of the part # E40B-8 so that you can convert to an electric setup without having to deal with a much more involved install since the pipes are plastic welded and can't come apart without cutting.
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  • How to Choose the Correct Valterra EZ Valve Electric Waste Valve for RV Black Water Tank
    The difference between a hub connection and a spigot connection is that the hub is the female end and has a lip on the inside that stops the spigot (or male) end where it needs to be. I have attached some pictures to assist. With this knowledge it is just a matter of taking your valve off and choosing the correct replacement: 3" Hub to 3" Hub - # E40B-8 3" Hub to 3" Spigot - # E40-8 3" Spigot to 3" Spigot - # E40A-8 I would avoid going with the option that only has the 3" Diameter #...
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  • Can You Replace Just the Valve When Upgrading To Electric Sewer Waste Control
    In order to upgrade from manual to electric waste control valves you'll need to change out the entire housing/body as well. For this, we have quite a few options which will depend on if you have separate valve like part # E40B-8 or combined like part # E85-8. These options both have hub fittings which are the easiest to change out since all you need to do is cut the old ones off and slide the new ones on with some solvent part # A05-0303.
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  • Does Valterra EZ Valve Electric Waste Valve Have Gaskets/Seals Between Valve and Ends
    Yes, there are gaskets/seals between the valve portion of the Valterra EZ Valve Electric Waste Valve # E40B-8 and the 3" hub sections. Just use ABS Solvent # A05-0303 when you install this to 3" spigots and you won't have to worry about any leaks!
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  • Electric Waste Valve for 4 Inch Diameter Black Water Tubing
    Are you referring to a waste valve for your black water tank? If this is the case than are you sure you have a 4" diameter tube because the industry standard size for a black water tube is 3" diameter which is what most of our waste valves are designed to work with. We do not have any 4" diameter electric waste valves but you can reduce the 4" diameter black water tube down to a 3" diameter black water tube and use one of the following: Valterra EZ Valve Electric Waste Valve part # E40A-8...
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    The Valterra EZ Valve Electric Waste Valve for RV Black Water Tank - 3" Hub to 3" Hub # E40B-8 can be installed horizontally as well as vertically without any issue. I reached out to my contact at Valterra to confirm and they absolutely can replace existing Valterra cable actuated valves. You will simply unbolt the hubs and make sure the seals are in place when you bolt the valve into your current setup. They did mention that the motor is slightly wider than the valve body, so you will...
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  • Can Valterra EZ Valve Electric Waste Valve Be Installed Sideways Under 5th Wheel Trailer
    Yes, the Valterra EZ Valve Electric Waste Valve for RV Black Water Tank # E40B-8 can be oriented sideways so it's able to open up under your trailer. The 3" to 3" hubs mentioned in the description are included with the valve. These are the pipe ends on either side and the hub terminology means that they are the "outer" connection - so your existing pipe will need to fit inside of this at both ends. Since it looks like you have one hub and one spigot (the inner connection) on your setup...
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  • What Wire Gauge Does Valterra EZ Valve Electric Waste Valve Use?
    I spoke with a representative of Valterra who told me that the Valterra EZ Valve Electric Waste Valve # E40B-8 uses 3 wires, each of which are 18 gauge. Please keep in mind that you will need ABS solvent bond # A05-0303 for installation of this valve.
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  • Troubleshooting A Valterra Electric Waste Valve That Keeps Blowing The Fuse
    I spoke with Valterra and they stated that there's a microswitch inside of the Valterra EZ Valve Electric Waste Valve # E40B-8 that isn't sensing that the gate is fully closing causing the fuse to blow. This could be either an obstruction blocking the gate or just something on the sensor itself. I recommend using a hose to try and clean out the line and seeing if that solves the issue. You can hook on an adapter like the Valterra Hydroflush Reverse Flush Adapter # F02-4110 to connect a...
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  • Upgrading To Electronically Controlled Waste Valves
    If you're wanting to have an electronically controlled valve for just the gray tank then you can use the Valterra EZ Valve Electric Waste Valve for RV Black Water Tank - 3" Hub to 3" Hub # E40B-8 along with a reducer # T1041-1 to make the connection between the valve and gray water pipe. There currently are no electronically controlled valves with a 1-1/2" opening so you'll have to use a black water tank valve to accomplish this. You could also use the Valterra EZ Valve Double Electric...
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  • Why is Valterra EZ Valve Electric Waste Valve Tripping Breaker
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  • Will 3" PVC Pipe Fit The 3" Hubs Of The Valterra EZ Valve Electric Waste Valve
    The hubs on the Valterra EZ Valve Electric Waste Valve for RV Black Water Tank # E40B-8 will have an inner diameter of 3". PVC pipe is measured by it's internal dimensions so a 3" PVC pipe would actually have a 3.5" outer diameter and would not be compatible with the # E40B-8. You would want to use ABS pipe, which can be purchased in a 3" outer diameter to fit the hubs.
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  • Troubleshooting a Valterra Electric Waste Valve That Has a Open Valve Light Stuck On
    It could just be a weird connection the wires are making with the switch causing the light to stay on. I'd recommend checking the connections to the switch and make sure they're seated properly and making a good connection to the switch. If the wires going to the switch are fine, and everything is connected properly, then I'd recommend just swapping out the switch with another switch like the Single Momentary Switch # 37213845.
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  • Can The Valterra EZ Valve Electric Waste Valve Replace the Manual Valve Already On My Camper?
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  • Recommended Electric Dump Valves for 2014 Sanibel 3600 5th Wheel Trailer
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  • How Do I Lubricate/Maintain My Waste Water Valves
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Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video Edited:
Joshua S
Employee Kathleen M
Video Edited:
Kathleen M
Employee Amy B
Written by:
Amy B
Employee Ryan G
Installed by:
Ryan G

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