NDS JUMBO RECTANGULAR VALVE BOX WITH OVERLAPPING COVER:
13"X20" Rectangular structural polyolefin valve box with overlapping lip cover and UV inhibitor. Depth: 12 inches; Lid: 21-1/2 X 14-7/8 inches; Outside Base: 25-3/4 X 19 inches.
The NDS STANDARD SERIES 13"X20" rectangular valve boxes overlapping covers prevent dirt and grass from settling between body and cover. UV inhibitors are added to prevent discoloration and deterioration; such as cracking or blistering.
The NDS STANDARD SERIES 13" x 20" body is tapered and has a minimum wall thickness of 0.250". The body has a double wall at the top cover seat area with a minimum thickness of 0.250". The cover seat area has 16 structural support ribs on the underside of the seat, each with a minimum thickness of 0.250". The bottom of the body has a 0.500" flange. The 13" x 20" cover has an average thickness of 0.250". The valve box has a 3/8" 304 Brass nut for the bolt-down as a standard feature.
- Injection molded of recycled polyolefin material with a melt index between 10-12.
- Coloring and UV stabilizers are added, along with processing lubricants when needed.
- The 13"X20" body shall be tapered and have a minimum wall thickness of .250"
- The body shall have a double wall at the top cover seat with a minimum thickness of .25."
- The cover seat shall have 16 structural ribs on the underside of the seat, each with a minimum thickness of .250"
- The bottom of the body shall have a .500" flange
- The 13"X20" cover shall have a average thickness of .250"
- The valve box shall have a 3/8" 304 SS nut for the bolt-down as a standard feature
Can you supply one that big?
In my design, I buried the incoming and outgoing lines deep enough to go under the valve box. If you can think of the valve being at the top of an upside down "U" . This also has the advantage of making it easier to work on or replace a valve. There are holes on each end of the box, but in my configuration they were of no value.
I use a flat head screw driver to help. On the end that says lift here, first push the green cover on that end as far as possible to the other side. Then insert the screw diver, with the flat head toward the words, into the notch between the green cover and the black side wall and attempt to pry the lid up. That should lift up the lid just enough to put your fingers under it. Push the screw driver down some more if needed to make a second attempt at prying up the lid while at he same time pulling up with your fingers. It takes some practice, but it works for me. Good Luck. The design is not user friendly
Not sure I would even want to put a lock on the box, last thing I would want to do, if there is a problem with a sprinkler head, is search for a key to the lock.
Last year I installed an underground sprinkler system at my home and used two (2) of these Jumbo valve boxes to locate my two manafold and eight control valves under ground. They work great. The jumbo valve boxes are made of quality material and built to last.
Clayton T. Lincoln