Cartridge - DIAMOND Valve - 1H

Delta

Model#: RP50587
Delta Cartridge - DIAMOND Valve - 1H is rated 4.1 out of 5 by 51.
  • y_2018, m_4, d_18, h_22
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.8
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_51
  • loc_en_US, sid_RP50587, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_deltafaucet
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getAggregateRating, 21ms
  • REVIEWS, PRODUCT

Download Image


Compare Favorite Add To A Project View my Items image/svg+xml Print
List Price (US $):
$49.75
BASE PARTS
RP50587
$49.75

Product Support, Repair Parts & Technical Specifications


View Maintenance & Installation Sheet

Installation Information


  • Valve Type: Ceramic valve
Rated 2 out of 5 by from Beautiful Gaucet, but hard to shut off I’ve had this faucet less than a year and the cartridge has malfunctioned. It now leaks and is almost impossible to turn off. The price of a new cartridge is almost half the price of the faucet. We chose this faucet because of the quality behind the Delta brand. I expected better.
Date published: 2018-04-14
Rated 2 out of 5 by from DIAMOND Valve is the WORST! I have owned a number of Delta products and have been very satisfied. In fact I have a bath faucet I installed 33 years ago and it is still working great. HOWEVER, I bought this kitchen faucet 4+ years ago and from day 1 have had mixing issues. One would expect a straight up movement would give a mix of hot and cold but very hot is more the norm. A slight adjustment to the right produces cold, not lukewarm. A slight adjustment to the left produces very hot water. The more the valve is opened the cooler or less hot the water is. Also, as of late, the faucet is dripping and it cannot be fixed simply by running hot water (to expand gaskets). Love the design, but am considering replacing to keep my wife from constantly complaining. If the dripping issue has a fix I would love to know what it is. As for the temperature issue, I'm not sure there is a fix as I believe it is the design of the valve causing the problem but willing to listen to any ideas.
Date published: 2018-04-09
Rated 4 out of 5 by from nice looking faucet Bought this faucet a few years ago , mainly because it is a Delta and the fact it looks good. Overall we have been pretty happy with it. Only problem is after a couple of years the cartridge starts not wanting to shut off. We are on our third cartridge, luckily they are easy to change. Were going to buy a different brand this time but nothing looks as good as this in our bath .
Date published: 2018-03-31
Rated 5 out of 5 by from Repair (replacement) was a breeze! This was so fast and easy my wife said are you done already? Recommend you do it when your spouse is out of the house so you can act like you spent all day on it!
Date published: 2018-03-26
Rated 1 out of 5 by from Not up to Delta's old quality standards. As mentioned in other reviews, 2 years after purchasing this faucet in late 2009 the handle operation became hard to shut off. We lived with the sporadic leaking for a year, just dealing with the "just right" handle off position. When it got even worse, I replaced the original cartridge ($50.00 for part). That cartridge started leaking again last year, so the 2nd cartridge needs to be replaced again! I agree with Tedtheflyer’s review comment that there is a basic flaw in the original design & the problem also exists in the replacement cartridges. In addition, the hub assembly began corroding about a year ago and is getting worse. I have attached pictures. I have used Delta products for many years, and never had to replace expensive parts like this every 2-3 years. This faucet was purchased in late 2009 for $240.00 because I expected it to last as long as past Delta products. I am now researching other brands and their reviews to hopefully get a longer lasting and more trouble-free faucet.
Date published: 2018-02-17
Rated 1 out of 5 by from Very Poorly Designed Cartridge I am replacing the 4th cartridge in this faucet since it was purchased in 2009. They last about two years. The faucet operation becomes stiff and becomes difficult to shut off. I can understand a flaw in the original design, but the Delta engineers don't seem to understand there is a genuine design problem with this cartridge because the problem exists in the replacement cartridges. I will have a hard time purchasing a Delta product again in spite of the free parts warranty.
Date published: 2018-02-16
  • y_2018, m_4, d_18, h_22
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.8
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_51
  • loc_en_US, sid_RP50587, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_deltafaucet
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 16ms
  • REVIEWS, PRODUCT

Delta 955 faucet with Cartridge - DIAMOND™ Valve - 1H Model#: RP50587. Cold water - good, the hot water - very slow. Have isolated problem to water line from valve to house hot water line. Is this water line removable from valve? Thanks

Asked by: TSLove
Hi, TSLove! Thank you for your question, and I am sorry to hear that you are experiencing low flow. Over time, common water debris will settle in the house supply lines. Anytime the water is shut off to a portion of the home, this debris can become dislodged and will move through the pipes to be caught by a faucet. Local construction or the changing of the seasons can also cause this. Flushing the supply lines through the unit should remedy this situation. To flush the unit, we recommend the following: Start with the easy stuff: Remove your aerator, wand or hose to check the flow through the unit without that part installed. If the flow is good, the piece you’ve removed is where the issue is. Soaking the part in a 50/50 mixture of white vinegar and water could help remove any particles or debris blocking the flow. If the water does not have a good flow, the problem could be in the faucet. Next, check the supply lines for debris: Turn the supply off to both the hot and cold-water lines. Once off, turn the handle on the faucet to the on position and leave it there to bleed the lines of any excess water. Next, disconnect the hot water supply line and place it inside of a bucket. Once the line is securely positioned into the bucket, turn on the cold-water supply. Since the handle was left in the on position, the water will flow up the cold supply line, through the faucet cartridge and back down the hot water line into the bucket. Leave this flowing for at least 30 seconds. After flushing, reconnect the hot water line and repeat this process with the cold-water line to ensure all particles have been removed from both supplies. If you need further help with this process, please contact us directly and we can walk you through the procedure. We are available at 800-345-3358 (prompt 2, then 3), Monday through Friday, 8am to 8pm and Saturday, 9am to 6pm CST. Best Regards, Rosanna
Answered by: DeltaFaucet11
Date published: 2018-03-22

what is the difference between the RP50587 and RP50587WW?

Asked by: kevin123456789
Hello Kevin123456789, Thank you for your question. The Delta Diamond Seal Technology Valve Cartridge RP50587 and RP50587WW are the exact same parts. However, the RP50587WW is a Grainger-only orderable part. Best regards, Tanya
Answered by: Tanya
Date published: 2018-03-13

I have a 9178 delta kitchen faucet and the handle is becoming hard to move and squeaks. It appears that I need a Cartridge - DIAMOND™ Valve - 1H Model#: RP50587. Is this is correct, are there any special tools I need for this project?

Asked by: Steve_H
Hi, Steve_H! Thank you for your question, and I am sorry to hear that you are experiencing an issue with your Delta faucet. The correct valve cartridge assembly is RP50587. You will need a 1/8" allen wrench to remove the handle assembly. You may also need an adjustable wrench to loosen the bonnet nut around the valve cartridge assembly. Please be sure to turn off the water at the shut off valve before removing the handle. Best Regards, Rosanna
Answered by: DeltaFaucet11
Date published: 2018-02-20

has the delta cartridge replaced the ball in model 470 series?

Asked by: ron
Hi Ron, Thank you for your question. The original model 470 did use a metal ball valve. The Rp50587 DST cartridge has replaced this ball valve for use in the new DST models, including the updated 470-DST. Best regards, Edward
Answered by: DeltaFaucet234
Date published: 2017-12-22

my faucet Delta 9192 DST is dripping

If I replace the single handle diamond valve, will this fix the drip from the faucet? Are there instructions for how to replace this valve?
Asked by: mikeasmel
Hi there Mikeasmel, Thank you for your inquiry! Yes, the RP50587 Valve cartridge assembly would be the right part for your Delta Addison Pul-Down Kitchen 9192-DST faucet. Please see the below "How To Video" for replacement instructions. https://www.deltafaucet.com/video-gallery/video-page?videoId=1KMlxNiWni8 Best regards, Tanya
Answered by: Tanya
Date published: 2017-10-21

1. Does this cartridge work with RP52833SS. 2. Does RP52833SS cover the entire cartridge once installed or is separate cover required?

Asked by: Dave
Dear Dave, Thank you for your inquiry! Yes the Delta RP50587 cartridge assembly will work with the Delta Metal Lever Handle RP52833SS. The Bonnet Nut and Cap Assembly covers the RP50587 cartridge assembly and the set screw in the handle tighten it to the stem of the cartridge assembly. Please refer to the below document for faucet parts. https://media.deltafaucet.com/PartsDiagram/DPD-L-501LF-WF.pdf Best regards, Tanya
Answered by: Tanya
Date published: 2018-03-23

My handle is leaking between the handle and the ball. Will the valve cartridge (RP50587) fix this problem

The water is coming out on top of the ball and going on the counter. If I order the valve Assembly, are the pipes that go to the hot and cold water supply and the pipe that goes to the faucet connected to the assembly. If they are , then do I have to cut them to length and attach proper fittings Faucet is a Delta LeLand 978-DST
Asked by: Gary
Hi, Gary! Thank you for your question. If your faucet, 978-DST is leaking at the handle, we would recommend to try and tighten the bonnet nut at the cartridge. If this does not work, we do recommend to replace the cartridge, RP50587. Best Regards, Rosanna
Answered by: Rosanna
Date published: 2017-03-16

Linking faucet

my faucet is linking and I have to fine an odd position on the handle to stop the link. I've tried to tighten but still linking. Do I need to replace the cartridge?
Asked by: Joe
my faucet is leaking and I have to try several positions in the off position to make it stop. Do I have to replace the valve cartridge?
Answered by: Gerry456
Date published: 2017-01-14
  • y_2018, m_4, d_18, h_22CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.8
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_23
  • loc_en_US, sid_RP50587, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_deltafaucet
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 73ms
  • QUESTIONS, PRODUCT