Model # 57100

Internet #100025518

Store SKU #557717

null 3/4 in. FPT Auto Inline NFC Valve

3/4 in. FPT Auto Inline NFC Valve

$10.50 /each

Frequently Bought Together

Product Overview

Use this heavy-duty Orbit 150 psi In-Line Electric Sprinkler Control Valve for 24 VAC sprinkler systems. The valve's reverse-flow design mitigates potential damages or waste from free-flowing water if a diaphragm ruptures. The valve's heavy-duty construction with self-cleaning function also features a manual on/off bypass lever that allows for testing and flushing of the sprinkler lines.

  • Universal use with residential 24-Volt sprinkler systems
  • Manual on/off bypass lever for the testing and flushing of sprinkler lines
  • Heavy-duty construction with a self-cleaning function
  • Reverse-flow design prohibits continuous water flow if a diaphragm ruptures
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Warranty / Certifications

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Customer Questions & Answers

How many sprinkler heads can this valve serve?

Asked by: angel
angel, that will depend on your water pressure, as well as the type of sprinkler heads you intend to install on the line. Please contact our Support team at 1-800-488-6156, and we'd be more than happy to help in any way we can. Thanks!
Answered by: OrbitIrrigation
Date published: 2017-02-06

I have valve 57100 installed. can I still get the old styl 57100 valves?

I want to be able to replace parts without removing the valve.
Asked by: Mike
Mike, we sell our Diaphragm Repair Kit (#57045), which will work on 57100/57101 valves. That should give you the replacement parts you need. If not, please give our Support team a call at 1-800-488-6156, and we'd be happy to help. Thanks!
Answered by: OrbitIrrigation
Date published: 2017-04-03

If I feed this with 1/2 inch will I cause significant lost in pressure to my impact sprinkler head. 1 head per valve.

Asked by: Tom
Tom, the recommended flow through a 1/2” PVC pipe is about 5-7 gallons per minute maximum, while the recommended flow through a 3/4” PVC pipe is about 8-11 gallons per minute maximum. Exceeding these recommended rates increases the friction losses in the pipe, so you will start to see different performance (meaning spray distance) between the first head to receive water and the last head on the line. Assuming that you only have one head on the line, though, you should be fine supplying our 3/4” valve with a 1/2” line as long as whatever sprinkler head you use does not flow more than about 7 gallons per minute.
Answered by: OrbitIrrigation
Date published: 2016-07-13

What is the minimum amp of the 24vac transformer can be use.

Asked by: Tom
Tom, 24V AC solenoids (like the ones used on valves like this) require anywhere from 150-250mA to operate. Please feel free to contact our Support team at 1-800-488-6156 if you have any other questions at all. Thanks!
Answered by: OrbitIrrigation
Date published: 2016-06-03
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Customer Reviews

3/4 in. FPT Auto Inline NFC Valve is rated 3.9 out of 5 by 32.
Rated 1 out of 5 by from Sprinkler valve I bought this valve to add to my existing manifold and after installation I turned the water on and the valve appeared to be open. I did my customary checks, is manual open: no, wires were not even connected at this point. I then took the top of the valve off looking for damage or debris in the diaphragm and going nothing. I tried the water and again it came out as if it was on. Yes, I did verify the directional arrows as well. After 3 attempts at taking it apart and checking with no results, I went to HD and bought another. I took the guts out and put them in the existing valve body and the problem went away. I have no idea exactly what the issue was but I did spend a whole day trying to find out. This was the first time I went with this brand. I usually use a commercial brand. I do hope it lasts because if the entire valve ever has to come out it is a lot of work.
Date published: 2016-12-06
Rated 1 out of 5 by from i bought 10...4 bad...dont buy I bought 10...4 leaked ...I followed instructions from the orbit video to clean and clear the valves but they still leak every other time they turn cannot unscrew and screw in the bolts a's even cracked at the seam after 1 hour of advice... look for a better not get a screw in type but a glue in type can't reuse the plastic threaded parts anyway if you have to take thinks apart ...I live in a place where I have to haul my own water and leaky valves cannot be tolerated...home depot did a great job on's the orbit valves that are bad
Date published: 2016-06-24
Rated 5 out of 5 by from works great I bought 2 of these valves a year or so ago. 1 to use and 1 for back up, and the 1 is still running strong. I don't know how they work for sprinklers, but on my air cannon....A+.
Date published: 2013-06-12
Rated 5 out of 5 by from Quality Product I personally installed a 5 station in ground sprinkler system with four sprinkler heads per station using all Orbit components including 5 of these valves in 2010. There have been zero problems with these valves or any of the Orbit components. A little over a year past I added 2 more stations using Orbit components including these valves. I have had zero problems with my system. I am surprised at the negative reviews of this product. I am very mechanically inclined with a degree in Applied Science in Industrial Engineering and do a lot of Plumbing, Electrical and general construction projects. I have personally found that Orbit components, including these valves, are of good quality, long service and work as designed if properly installed and maintained. I highly recommend Orbit products as quality, cost effective and good value.
Date published: 2016-10-18
Rated 4 out of 5 by from quick replacement works well no manual action Worked well to replace a leaking unit. I don't understand how the manual lever works it just unscrews the solenoid when I try to turn it. So far the water turns off with a rumble so perhaps the off action is not real fast but it seems to work fine. So if I cant work it manually and it makes one noise per watering for $13 its still a nice deal compared to the old leaker. I could try another one I guess but my main reason to replace was leaks not operation.
Date published: 2015-05-30
Rated 4 out of 5 by from Inexpensive and does what it is supposed to do This Inline Valve was just what I needed to set up a watering system for my new Garden Area, I was able to install all the piping and Valves in about 6 hours and that included installing the irrigation Timer. Thank you for having just what I needed.
Date published: 2016-06-28
Rated 5 out of 5 by from A sturdy, easy to install valve This is the first time I've used orbit products. I have often used similar products by competitors. From what I've experienced, this valve can stand up to and exceed quality and pricing. Definitely a winner.
Date published: 2016-08-31
Rated 5 out of 5 by from Water valve The valve worked great. Easy on installing. However this was the exact valve I took out so that made things easier.
Date published: 2016-10-18
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