Water and fluid pumps within a house typically operate in one direction. The water will flow in the opposite direction once pumping ceases, causing damage to the pump. A check valve is a section of piping that allows for the water to flow in only one direction. Check valves come in a number of varieties for dozens of different applications. Installing a check valve protects your equipment from damage and only requires about 20 minutes to install.
Things You'll Need
- Check valve
- Angle grinder
- Pipe cutter
- PVC cement and primer
- Adjustable wrench
- Propane torch
- Soldering flux
- Teflon tape
Prepare the Pipe
Trace the pipe and locate the position for the check valve.
Cut the pipe, using an angle grinder, pipe cutter or hacksaw, depending on the type of pipe. Unscrew the pipe from the joint, for a steel pipe, using an adjustable wrench. Use the hacksaw to cut into PVC or small, iron pipe. Use the angle grinder to cut larger pipes. The pipe cutter also works on brass pipe.
Smooth the cut edge on any pipe that you cut, using any grit of sandpaper.
Install the Check Valve
Screw the check valve into place for steel piping that you disconnected at a joint. Wrap the end of the pipe with Teflon tape and use the adjustable wrench to tighten the check valve into place. Connect the pipe at both ends of the check valve.
Spread soldering flux around the end of the cut brass pipe and attach the check valve. Heat the joint with a propane torch and apply solder to the joint. Go around the whole joint with the solder to ensure the joint pulls the solder into the connection.
Prepare the cut ends of the PVC pipe with primer. Apply liberally to both cut ends. Apply the PVC cement onto both cut ends of the pipe and attach the check valve to the line. Twist the check valve around until the PVC piping is fully seated within the check valve. Twist the check valve a quarter turn to ensure proper adhesion of the PVC cement.
Install the check valve to cut iron or larger pipes. Check valves for this size joint to the pipe by way of rubber tubing with retaining clamps permanently attached to the tubing. Slide the rubber tubing over one end of the cut piping and then over the other end. Secure the clamps by tightening the associated screw on the clamp.
- Photo Credit Andrew Howe/Photodisc/Getty Images
How to Install a Sump Pump Check Valve
Sump pumps were developed to pump ground water out of basements to prevent flooding. Presently, basements are required in most areas to...
How to Install a Floor Drain Standpipe
How to Install a Floor Drain Standpipe. Standpipes provide homeowners with an alternative way to manage messy and often expensive back flows...
How to Install Check Valves in an Air Suspension
Air suspensions are gaining popularity every day. Installing a set of airbags or air cylinders can be simple enough to be installed...
How to Install a Pop-Up Sink Drain Valve
Installing a pop-up sink drain is a simple and quick do-it-yourself job. Pop-up drains work by pressing on the center of the...
How to Install a Floating Floor Drain Plug
Installing a floating floor drain plug is a smart idea if the room or basement that you are installing it in is...
How to Install a Stop & Waste Ball Valve
If you live in an area where cold weather prevails, you will need a means of draining all the water out of...
How to Repair the Check Valve on a Whirlpool Dishwasher
The check valve on your Whirlpool dishwasher is an important part of the dishwasher's drainage system. On a Whirlpool dishwasher, the valve...
How to Install a Drain Valve in a Plastic Barrel
Installing a drain valve in a plastic barrel allows you to easily access whatever liquid you have stored in the barrel. The...