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Speedway Disc Brake Residual Valve, 2 PSI, Purple

Specs
Material Type:
Aluminum
Sold in Quantity:
Each
Finish:
Anodized
Outlet Fitting:
1/8" NPT
Overall Length:
1.60
Overall Diameter:
.67
Notes
Use 2 PSI for disc brake applications.
Speedway Disc Brake Residual Valve, 2 PSI, Purple
Speedway Disc Brake Residual Valve, 2 PSI, Purple
VIDEO
Speedway Disc Brake Residual Valve, 2 PSI, Purple

Click image to enlarge

Watch the video below to learn more about the differences in brake lines, flare types and fittings you may want to consider before plumbing away on your current chassis project.

Details

Reviews (24)

Q & A (4)

What's in the Box

Info

Ever had problems with a spongy pedal or slow, unresponsive brakes? If so, you may need a residual pressure valve installed in your brake line. A residual valve acts like a one-way or check valve to maintain brake system pressure to eliminate the problems of a spongy pedal. This 2 PSI residual valve is installed inline between the master cylinder and disc brake calipers to keep 2 PSI of residual pressure at the caliper after the brake pedal is released. This ensures that you will have a high, firm pedal next time you press the brake pedal.

If your master cylinder is located below the floorboard, installing a 2 PSI residual valve is highly recommended. If your master cylinder is mounted on the firewall, a residual valve is generally not needed because gravity will provide a natural residual pressure within the brake line.

Our residual pressure valve features a distinctive purple anodized finish with 1/8" NPT port at each end. Use 2 PSI residual valves for disc brake applications only.  Inverted flare or AN threaded adapter fittings to the 1/8" NPT female thread will be required and are noted below and available as required.

Customer Reviews

Rated 4.7 out of 5 by 24 reviewers.
RATING BREAKDOWN
24 reviews
5 Stars
18
4 Stars
5
3 Stars
0
2 Stars
1
1 Star
0
RECOMMEND THIS PRODUCT:

Kev
Verified Purchaser
Grand Terrace, CA

I would buy this product again.

June 06, 2016
Product works and installs perfectly
Yes, I recommend this product.
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Jimmy D.
Verified Purchaser
Verified Reviewer
Riverton, Wyoming.

52 ford brakes

March 02, 2016
This worked out great after finding the correct fittings to adapt from pipe thread to 3/16 inverted flare brake lines used on most brake systems. In small towns theses adapter fittings can be hard to fined. Maybe these fittings should be offered as a add on at purchase.
Pros:
  • Looks
  • Works
Cons:
  • Pipe Thread
Yes, I recommend this product.
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Racey
Verified Purchaser
Verified Reviewer
Mo.Valley, Iowa

Quality part

March 01, 2016
Nice looking performs as expected
Yes, I recommend this product.
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juggie
Verified Purchaser
Verified Reviewer
Ste, Genevieve, MO.

works great

January 30, 2016
putting back together a old hot rod and updateing the brakes and this worked out great
Yes, I recommend this product.
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None
Verified Purchaser
Cedar Rapids, IA

Nice quality and great price.

November 01, 2015
Nice quality and great price. Highly recommend.
Yes, I recommend this product.
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GRAND-PA
Verified Purchaser
Pleasantville, Iowa

My 32 three window stops

October 31, 2015
I installed the valve in my duce coupe. Now I have a pedal the first time! The valve was easy to install and so far it works GREAT
Yes, I recommend this product.
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tripower
Verified Purchaser
Villa Grove ,Illinois

Good pedal now

October 29, 2015
Solved low brake pedal upon stopping. Just the thing for the Disc brake / Drum brake combination on my 48 Mercury.
Yes, I recommend this product.
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huffy
Verified Purchaser
Verified Reviewer
southwest Florida

Glad I found yeah!

October 21, 2015
I've add disc brakes to the back of my 1973 Chevy Nova, and the brakes never worked right? after ad the brake residual valve made all the differences in the world! and my master cylinder is not below the lines
Pros:
  • Made All The Differences
Cons:
  • no cons
Yes, I recommend this product.
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Marty
Verified Purchaser
Verified Reviewer
Kentucky

Great Procuct

July 21, 2015
Works Great
Yes, I recommend this product.
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Big Al
Verified Purchaser
Jacksonville, Ar.

residual valve 2 psi

June 26, 2015
works good for what I needed them for
Yes, I recommend this product.
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Page 1 of 3

Product Q&A

4 questions : 9 answers

2 answers

I will be using master cylinder 91631926, will these rpv fit the same brake line threads as used in this master cylinder?

bugg
leominster ma
April 24, 2014

I will be using master cylinder 91631926, will these rpv fit the same brake line threads as used in this master cylinder?

Answers

February 12, 2015
rubberhead
No theses have 1/8" pipe threads not inverted flare.
April 25, 2014
EricM
No this will not screw into that master cylinder. Usually a steel brake line will be used at the master cylinder outlet, then you can use adapters part number 91031831 to be able to mount these to the steel brake line.
3 answers

I have disc front and rear will I need a residual valve if my master cylinder is mounted on the firewall?

harleyrules
New Jersey, USA
September 18, 2013

I have disc front and rear will I need a residual valve if my master cylinder is mounted on the firewall?

Answers

November 01, 2014
shoog
its not necessary , gravity will keep the line full. the valve may stop the piston from going back further than they need to , possably giving you a shorter travel pedel.
September 27, 2013
dawg
yes you will need a 2psi on front and rear
September 18, 2013
Jason
If the master cylinder is the highest point in the brake system it would not be a must to use reidual valves in this application. However, it will keep pressure at caliper for quicker response.
3 answers

Do i need a residual valve if my master cylinder is the high point of my brake system?

ray
gilbert az
June 02, 2011

Do i need a residual valve if my master cylinder is the high point of my brake system?

Answers

February 12, 2015
rubberhead
No only if master cylinder is below calipers or wheel cylinders such as below your floor.
October 14, 2014
1949shoebox
Not a must but the system will perform better (ie: higher pedal) with the residual valves installed
June 03, 2011
Jason
No, it would not be a must in this application. However, it will keep pressure at caliper for quicker response.
1 answers

Can I use inverted flare fitting without any adapters

dirt6792
iowa
June 06, 2015

Can I use inverted flare fitting without any adapters

Answers

June 08, 2015
Eric
Expert
No this will need to have the included adapter fittings installed to use a 3/8"-24 inverted flare connection. These residual valves have 1/8" NPT female threads to make them more universal and fit more applications.
Page 1 of 1

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