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Product Description
Used with drip irrigation to adapt 1/2" drip poly tubing (.710" OD) (black ring) to 3/4" .940 OD poly tubing (gray side). Compression Fittings fit over drip tubing and require no glue or clamps. Installation is quick and easy. Blue rings indicate 710 fittings. Gray rings indicate 3/4" poly tubing.
How To Install a Drip Irrigation Reducing Coupling
Irrigation Direct Product Tutorial
Video Transcript
940 SERIES COMPRESSION REDUCING COUPLING: DD-CCA940710
Compression reducing couplings from Irrigation Direct are used with drip irrigation to connect drip tubing of different sizes.
They are convenient when adding on to existing drip systems. Check the color of the fittings connected to your drip tubing to determine the size used in your existing system.
The 940 by 710 compression reducing coupling is used to adapt 3/4" 940 drip tubing to 710 drip tubing
The 3/4" tubing is inserted into the gray side and the 710 tubing is inserted into the blue side.
Installing a compression reducing coupling is quick and easy
To begin, simply cut your drip tubing with a pair of clippers or scissors. Make a straight cut across the pipe to ensure a tight fix. Insert your drip tubing in the blue end of the compression reducing coupling and press inward, rocking the pipe and fitting back and forth. Use your thumb as a guide or score a mark on the tubing with your fingernail about one inch up from the end. Push until one inch of the tubing is inserted into the fitting.
When installing in cold weather, it helps to dip the tubing in warm water for a few minutes to soften the ends.
Compression reducing couplings connect drip tubing of several sizes and are all color coded for easy identification. We carry 3/4" 940 reducing couplings for 620, 700 and 710 tubing.
Green rings indicate 620 Raindrip drip tubing
Black rings indicate 700 drip tubing
Blue rings indicate 710 drip tubing
The CCA940 x 710 reducing coupling is just one in a full line of three quarter inch compression fittings available from Irrigation Direct.
Product Details
- Compression Coupling Adapter
- Gray ring for 3/4" .940 OD poly tubing
- Blue rings indicate 710 fittings for 1/2" drip poly tubing (.710" OD)
- Quick & Easy Installation
- High Quality Plastic with Maximum UV Protection
- Recommended Operating Pressure: 10 to 30 PSI
- Maximum Operation Pressure: 60 PSI
Replacement for
3/4" Drip Irrigation Compression Fitting, , Drip Fitting, , Irrigation Fitting, , Poly Fitting
Related Tutorials
Tips & Tricks
Upgrade Your Drip Hole Punch & Save Time
A clean cut makes it easier
Some drip irrigation hole punches are shaped like a pencil and simply poke a hole as they push through the tubing. They require more force and can slip off of the drip tubing before they make the hole. The Super Punch (shown here) has a squeeze handle and is only $9.90. A less expensive option is our Deluxe Hole Punch which has a sharp, circular cutting edge. It's comfotable, easy on your hands, and costs only $3.60.
A Paper Clip Quickly Cleans a Hole Punch
Insert the wire to clear the tool
A good hole punch will actually cut a tiny circle out of the drip tubing. The plug of tubing can be removed from the cutting edge of the punch with a paper clip. Push it through the cutting end to clear any plastic debris.
Control Water Flow to Flower Pots With This Little Valve
1/4" Flow Conrol Valve inserts into micro tubing
If you use drip irrigation to water hanging baskets or flower pots, put a 1/4" flow control valve on each pot. You can reduce the flow or shut it off completely. It's handy if the pot is has not yet been planted and you don't want to water it.
Fix Little Holes With a Goof Plug
Doubles as a 1/4" end plug
If you make a mistake and poke a hole in the wrong place on a drip line, insert a goof plug (small barb). If the hole gets worn and leaks a little, pull the plug out and use the large barbed end. Goof plus are also used to plug the end of 1/4" micro tubing.
Adjust Water Flow to Garden Boxes With a Flow Control Valve
1/2" Valve fits over mainline tubing
These valves are great when you have garden boxes or drip areas that you may want to turn off seasonally. You can reduce the flow or shut it off completely. 1/2" Flow Control Valves are installed just like a compression coupler.
Fix Big Holes With a Coupler
If a goof plug won't do the trick
If you have a hole in a mainline poly pipe that is bigger than a goof plug, a compression coupling is the fitting to use. Make a clean cut and insert the two tubes into each end of the coupler. No glue required.
Threaded End Caps Make Winterizing Easy
Unscrew cap to flush or drain drip tubing
Install them now and thank yourself later. A threaded cap at the end of the drip line allows you to flush the line to clean it and drain the line of water before freezing winter temperatures set in. Learn more about winterizing your irrigation system.
Videos
FAQ
- Is all 1/2" poly tubing (drip mainline) the same?
The short answer is no. Poly tubing may be called “1/2 inch” by manufacturers and retailers but if you look closely you’ll find that the tubing has specific Outer Diameter (OD) and Inner Diameter (ID) dimensions.
Common OD dimensions are:
.700 inches (called “700") Black fittings
.620 inches (called “620”) Green-ringed fittings
.710 inches (called “710”) Blue-ringed fittings
.580 inches (called “580”) Yellow-ringed fittings
.455 inches called "455") Red-ringed fittings
We carry 700 poly tubing and Compression fittings. We also carry fittings and adaptors for many of the common tubing sizes.If you want to know the size of your existing drip tubing, read What Size Is My Drip Tubing?
Additional Info:
Installing Drip Tubing & Fittings
- How far can I run the 1/2” drip poly tubing (mainline)?
The maximum drip mainline run is determined by the flow rate, water pressure, the number of emitters on the line, and distance between the emitters. Our 700 tubing has a maximum flow rate of 240 gallons per hour. We recommend a 20psi or 30psi drip regulator.
For most residential drip irrigation systems using a hose bibb (faucet, spigot, hydrant) as the water supply, follow these guidelines:
Maximum drip mainline run: 500 ft
Maximum emitter output: 240 gallons per hour
Since a typical hose bibb delivers 240 gallons per hour, you can put 240 1 gallon-per-hour emitters on the line (or 480 1/2 gallon-per-hour emitters or 120 2 gallon-per-hour emitters).
This works up to a point. If you run your drip poly tubing over 500 feet, there will be some pressure loss, limiting the number of emitters that you can install. For a maximum length run chart and more details read our tutorial on Installing Drip Tubing and Fittings.- How far can I run the drip emitter tubing (dripperline)?
The maximum run varies with the size of the tubing and the spacing of the emitters.
Emitter Tubing Guidelines Tubing Size & Emitter Spacing Pressure Compensating Emitters? Max psi Max Run per branch Max Run Total (1/4" is fed from 1/2" mainline) 1/4" Tubing - 6" spacing 1/2 gal/hr No 30 19 ft 200 ft 1/4" Tubing - 12" spacing 1/2 gal/hr No 30 33 ft 400 ft 1/2" Tubing - 12" spacing 1/2 gal/hr Yes 50* 450 ft 1/2" Tubing - 18" spacing 1/2 gal/hr Yes 50* 500 ft 1/2" Tubing - 18" spacing 1 gal/hr Yes 50* 350 ft * We recommend operating at 20 - 30 psi Pressure Compensating Emitters
- Deliver the stated gph (gallons per hour) even if pressures range is 10-50 psi
- Works well with elevation changes
- Self-flushing to reduce clogging
Non-Pressure-Compensating Emitters
- Output will vary with changes in pressure & elevation
- Workes best with flat landscapes
- Excellent for gravity-fed drip systems
1/2" Compression Fittings
- Recommended pressure: 10-30 psi
- Max pressure: 60 psi
- How do I add on to my existing drip system?
We have a great selection of drip tubing coupling adapters for varying sizes of drip tubing. They are color coded. The first step is to determine the Outer Diameter (OD) of your tubing.
Common OD dimensions are:
.700 inches (called “700") Black fittings - 700 Compression Coupler
.620 inches (called “620”) Green-ringed fittings - 700 x 620 Compression Adapter
.710 inches (called “710”) Blue-ringed fittings - 700 x 710 Compression Adapter
.580 inches (called “580”) Yellow-ringed fittings - 700 x 580 Compression Adapter
.455 inches called "455") Red-ringed fittings - 700 x 455 Compression Adapter
If you find that your existing tubing is not 700, simply add the appropriate coupling adapter to your order to go from your tubing to 700.View our Installing Drip Tubing & Fittings tutorial for more details.
- Can I bury my drip tubing?
We do not recommend burying drip tubing in the soil. However, a layer of mulch on top will extend the lifespan of the drip tubing. Buy Drip tubing here.
