enLanguage
Home / Products / PEX Pipe

PEX Pipe

Your Leading Zhuji Fengfan Piping Co.,Ltd Supplier

 

 

IFAN factory started in 1993. And IFAN has workshop 120000 ㎡ with 610 staff. IFAN can design and produce all plumbing pipe and fitting include PPR PVC CPVC PPSU HDPE PEXA PEXB PERT pipe and fitting, brass fitting, brass ball valve, heating system, gas system, sanitary faucets and hose. In the past 30 Years, IFAN has never forgotten his mission-To protect health and safety. And IFAN factory use best materials to produce high quality pipe and fittings with automatic production line and high tech quality control machines. The most important, IFAN can guarantee that all pipes and fittings manufactured by IFAN are qualified.

 

Why Choose Us?

Quality control

We have a professional quality inspection team, and our quality inspection team will carry out strict quality inspection on the products before all products are shipped to ensure the quality of the products.

OEM & ODM Support

We have 56 professional engineers. They can design and produce all plumbing pipe and fitting.

 

 

 

Competitive price

We have a professional purchasing team and costing team,trying to reduce costs and profits,and provide you with a good price.

24h online service

You can contact us to inquire about pre-sales, sales, and after-sales services, and we will give you a very satisfactory.We are at your service online 24 hours a day.

 

First 12345 Last 1/5
PEX Press Sliver Socket

 

What Is PEX Pipe?

PEX piping is made from long strands of polyethylene (PE) plastic extruded into hollow tubes or sheets. These tubes are cut into smaller lengths and joined together using special tools to form fittings. The fittings are connected to one another using crimp rings or compression fittings, which allow for a tight seal between the two ends of the fitting.
There are two main reasons why PEX piping comes in different colors. The first is to make the pipes easier to identify and follow. The second is that you can use different colors to determine the tempture of the water flowing through the pipes.

 

Benefits of PEX Pipe
 

Lower cost to install
PEX costs roughly the third of the price that copper piping costs. And if you’re looking for whole-home piping in new construction, the cost savings can really add up. Also, the price of copper varies in different markets while PEX is less prone to price changes.

 

Corrosion resistance
Unlike galvanized steel pipes and copper piping, PEX is resistant to corrosion, minl buildup, and erosion.

 

Ease of installation
For many minor DIY projects, it doesn’t require a plumbing license to do your own PEX pipe installation (although there are special tools). For example, one can replace old pipes in a leaky sink. Since PEX is flexible, it allows for easy installation in hard to reach places.

 

Efficiency
PEX pipes have a smaller diameter than other types of pipes, so the wait for hot water is shorter, resulting in less waste of water. Additionally, PEX material has greater thermal conductivity properties than other types of pipes which reduces heat loss.

 

Quiet option
You won’t have to worry about pipes rattling with PEX since they made out of synthetic plastic.

 

Types of PEX Pipe

 
 
01
 

large enterprise scale

PEX-A is the most flexible and is suitable for use in all home water-supply plumbing needs. It is the most resistant to cracking due to freezing, as it can expand the most. PEX-A is more expensive than B or C, and has no major benefit over PEX-B besides its greater flexibility. PEX-A is manufactured using peroxide.

 
02
 

PEX-B

PEX-B is stiffer than PEX-A and has a tendency to want to return to its coiled state. PEX-B can still be installed easily and expands to resist cracking due to freezing as well. PEX-B is manufactured using a moisture-cure method, and has a higher resistance to chlorine, making it a solid choice in regions where water contains higher chlorine levels.

 
03
 

PEX-C

PEX-C is the stiffest of the three types of PEX, making it the most difficult to work with. It is prone to kinking and susceptible to cracks in freezing conditions. PEX-C is the cheapest option, and should only be used for small repairs that don’t require much bending. PEX-C is manufactured via an irradiation method.

PEX Floor Heating Pipes

 

PPR Double Brass Male Elbow

Material of PEX Pipe

 

PEX (cross-linked polyethylene) pipe is typically made of high-density polyethylene (HDPE) and is cross-linked using one of sevl methods, including peroxide, silane, or electron beam. The cross-linking process creates a stronger and more flexible pipe that is resistant to heat and chemical degradation. The PEX pipe material is approved by many organizations, including the National Sanitation Foundation (NSF), the American Society for Testing and Materials (ASTM), and the Underwriters Laboratories (UL).

Uses for PEX piping

 

Plumbers use PEX pipings for both hot and cold potable water. Because PEX piping is flexible, it doesn’t need to be installed using traditional branch piping techniques that require more connections; rather, it can be installed to a central manifold with pipes going directly to the fixtures (called “home runs”). These runs go from the central manifold directly to the fixture, with no fittings or connections. This reduces the number of possible leaks and shortens the installation process. PEX can also be used with traditional branch piping techniques that require more connections.

PEX piping is also used in radiant heat flooring. In this heating system, builders install flexible PEX piping in a zigzag serpentine coil throughout the floor area, and then pour cement over it. Hot water circulates through the PEX pipes in the floor, providing radiant heat to the room.

PPR Double Clip Fitting

 

How to Connect PEX Pipes

There are sevl ways to connect PEX pipes, with push-fit being the easiest.

Crimp

This method is one of the most common ways to connect PEX pipes. With this connection method, copper or brass rings enclose the end of two pipes to connect them and you’ll use a special PEX crimping tool to secure each one into place.

Expansion

You’ll need a special PEX expander tool (essentially a heat gun) to use this expansion method to connect PEX pipes. Use the tool to heat and stretch the diameter of the tube, then insert the end of a fitting. As it cools, the tube will contract and shrink to its original size to create a seal around the fitting.

Push-fit

This is the easiest (and quickest) way to connect PEX pipes, so it's a popular practice among DIYers. While you won’t need to purchase tools, you’ll want to ensure you get push-fit specified PEX pipes in order for this to work. Push the PEX into a fitting by hand and the small teeth on the inside of the fitting will hold it into place.

Stainless steel clamps

Like with the crimp method, the stainless steel clamp method involves tightening rings around connections. You'll slip a stainless steel ring over the PEX tube, insert a fitting, then use a ratchet clamping tool to squeeze a tab on the ring and tighten everything together.

Compression fittings

This type of connection involves inserting a hollow brass compression tube into the end of the PEX pipe. Then, a compression ring is placed over the pipe and a threaded brass nut is placed on the end. Tightening the brass nut forces the ring and pipe against the brass tube insert to create a seal.

 

 
How To Install PEX Pipes?
 

 

Prepare your materials
  • First, prepare all the things and tools you need:
  • Crimp Rings
  • Fittings
  • Crimping Tool
  • Pipe Cutter
  • Marker

Slide a crimp ring onto the pipe.

Start by sliding a crimp ring over the end of PEX pipes. Position the crimp rings at least 1/8 to 1/4 of an inch from the end of the pipes. Tighten them with the crimping tool.

Slide a fitting into the pipe.

Fittings connect PEX pipes to a water source and other fixtures. Slide one into the pipes, and make sure that you use the correct fitting to avoid leaks and other issues.

Run the PEX pipes from the water source to the fixtures.

The last thing to do is to run the pipes from the water source to the fixtures. Provide support every 32 inches for horizontal pipes.
After running and connecting them, turn on the water source to test and check for leaks and other issues.

 

Which PEX Tubing To Choose?

 

PEX-A is the most flexible of all PEX pipe types, it has little or no coil memory and gives installer the ability to repair kinks with a heat gun. It has been in use for over long-term durability according to standards which is longer than other types and a lower bending radius in PEX-A (6 times the OD vs. 8 times the OD for PEX-B & C) is helpful.

PEX-B is a clear winner in terms of price compared with both other types. It has been in use for over 40 years and it also has a higher bursting pressure than PEX-A and a similar or better resistance to oxidation.

All PEX types are vulnble to high chlorine counts and can degrade and become brittle if exposed to high levels of the chemical and exposure to UV light. PEX has an external coating of antioxidant to protect it from UV light which must pass 50-year testing.

The major downside of PEX-B is its’ stiffness and coil memory. While there’s little difference in smaller sizes such as 1/2”, larger pipe diameters, especially 1”, can be noticeably harder to bend. Any kinks made during the installation can only be repaired by installing a coupling and cannot be repaired with a heat gun like PEX-A.

PEX A has a requirement for the degree of cross linking to be greater than 70% and PEX B the requirement is greater than 65%. The chemical structure of PEX A has a lower crystallinity due to the manufacturing method and has a lower density and strength hence PEX A needs to have a higher degree of cross linking.

PEX A is more flexible than PEX B but both types must be manufactured to a minimum bending radius.So, at the end of the day both PEX A and B must meet the same minimum performance requirements.PEX-C is the hardest to evaluate, given the lack of testing data and publicly available information.

 

 
Four Tips to Prevent Common PEX Tubing Problems
 

 

 
Only install PEX when temptures are above freezing to avoid leaks.

While PEX tubing withstands cold temptures better than other types of pipes, the tempture must be above freezing while it's being installed. Installing PEX tubing during below-freezing temptures will lead to faulty connections that will leak and need to be replaced. If you must install PEX in cold weather, it's important to warm the ends of the pipe before making any connections. Try heating the ends of the pipe with a heat gun until they are slightly warm to the touch, and then quickly use the crimping tool to create the connection. Never heat the pipe above 200 degrees Fahrenheit prior to making any connections.

 
Use suspension clips to protect PEX pipes from friction damage.

Like other pipes, PEX tubing expands and contracts in response to tempture changes. Over time, these small movements can wear away the outer surface of the pipe and create leaks. To stop this problem before it occurs, use plastic suspension clips to cover the pipe where it passes through holes in metal or wood studs. You can also use foam pipe insulation to protect PEX tubing that runs parallel to a stud or joist.

 
Install nail protection plates to prevent accidental PEX pipe punctures.

If your PEX pipe is less than 1 ½ inches from the edge of a joist or stud, you must install nail protection plates along the face of the structural members. Nail protection plates, also called nail stoppers, are rectangular pieces of metal that are attached to the face of a joist or stud. When a structural member is covered with plywood or drywall, the nail stopper prevents any screws or nails from accidentally piercing the pipe within the wall.

 
Use bend supports to prevent kinks when making tight turns.

Most kinks in PEX tubing occur when an inexperienced plumber tries to make a tight turn. While kinks in PEX tubing can be repaired, you can avoid this common problem by using a elbow to create any 90 degree angles. Both metal and plastic elbows are available, and they attach to the PEX pipe using the same connection method used to attach the pipe to a fixture. For wider turns, consider using a plastic PEX support piece that will gently guide the tubing around the curve and prevent kinks.

 

 

 
Certifications
 

 

productcate-1-1

 

 
Our Factory
 

 

IFAN factory started in 1993. And IFAN has workshop 120000 ㎡ with 610 staff. IFAN can design and produce all plumbing pipe and fitting include PPR PVC CPVC PPSU HDPE PEXA PEXB PERT pipe and fitting, brass fitting, brass ball valve, heating system, gas system, sanitary faucets and hose.

 

productcate-1-1productcate-1-1productcate-1-1productcate-1-1

 

 

 
FAQ
 

 

Q: Why do plumbers not use PEX?

A: PEX pipes are very thick, but they are still susceptible to rodent damage that can cause pipes to crack or break. Possible Leaching: Although uncommon, some homeowners and plumbing companies have reported a few PEX pipes leaching harmful contaminants like BPA (Bisphenol A) into the water supply.

Q: Is PEX pipe better than PVC?

A: Although PEX pipes are very durable and can last anywhere from 40-60 years, PVC pipes are known for having a little bit longer of a life expectancy of 70+ years when they're well-maintained!

Q: What is PEX pipe used for?

A: PEX pipe is approved for residential and commercial hot and cold water distribution systems, municipal water service lines, radiant panel heating systems, hydronic baseboard heating systems, snow and ice melting systems and building services pipe.

Q: Is PEX pipe better than copper?

A: Copper Pipe Lifespan. PEX pipe is not only cheaper than copper but more durable too. PEX is immune to corrosion and minl build-up, and it's not affected by electrolysis, which can cause small pinhole leaks in copper piping. Copper pipes can last anywhere from six months to the life of a building.

Q: What is the PEX controversy?

A: Failures in PEX plumbing systems have been observed in both fittings and piping, which can lead to serious damages in homes less than a decade old. The most notable issues arise when PEX plumbing fittings fail, causing leaks and extensive damage to properties.

Q: Which should PEX not be used for?

A: Pex piping should not be used in high-tempture applications or in places where it will be exposed to direct sunlight for extended periods of time. Doing so can cause the material to degrade and potentially lead to leaks.

Q: How long does PEX last?

A: long-term durability according to standards
PEX: Due to its flexibility and durability, PEX piping should last at least long-term durability according to standards. PVC / CPVC: Under typical conditions, these pipes should last up to 100 years. Keep in mind that PVC pipes are often used for drainage because extreme heat can damage them.

Q: Is Blue PEX OK for hot water?

A: PEX tubing can be red, blue, white, or gray. Red signifies a hot water line, while blue is used for cold water lines. White or gray PEX can be used for either hot or cold water.

Q: Is PEX OK for hot water?

A: PEX is totally great at handling hot water! PEX does not melt (analogous to elastomers) and is thermally resistant. The maximum heat tempture of the PEX tube is 200 degrees. The maximum heat of the PEX can be up to 180 degrees.

Q: Why don't plumbers use copper anymore?

A: Copper does have a few disadvantages, though. It has become expensive, can still corrode based on pH levels of water, and in cold climates, frozen water can cause copper pipes to burst. PEX installs quickly, which significantly reduces labor costs.

Q: What causes PEX pipes to burst?

A: While more burst-resistant than copper, in extremely low temptures, when water completely freezes in the pipes, PEX pipes are still susceptible to bursting. Over-chlorination of water. Water containing high levels of chlorine is highly aggressive, especially when the water is hot.

Q: Can you bury PEX in concrete?

A: Yes, PEX is the best material for piping through concrete, for it will not have a chemical reaction to the ingredients in the concrete. Also, if it is to be used for in floor heating, make sure that you have 180 degree water flowing through the piping during the pour and for the first week after.

Q: What tempture is too hot for PEX?

A: For all PEX pipe and tubing, the maximum opting tempture is 200°F. No PEX should be opted at temptures above 200°F for any length of time. The use of crosslinked polyethylene (PEX) pipe and tubing in high- tempture applications with opting temptures above 180°F may affect the tubing's design life.

Q: Does PEX hot water need to be insulated?

A: PEX is treated the same as copper, iron, PVC or CPVC for the same end use. PEX tubing does not provide any significant thermal insulation properties and would not meet code requirements without additional insulation.

Q: What is orange PEX used for?

A: Orange Oxygen Barrier PEX
Use for radiant floor and hydronic heating applications. The oxygen diffusion barrier prevents corrosion of ferrous metal parts in the heating system.

Q: Can you run electrical wire through PEX?

A: Pex tubing or any other plumbing pipe is not listed for use as an electrical raceway. If you just want some physical protection for the Cat 5 cable then PVC electrical conduit will perform nicely. Save your scrap pex for a plumbing project.

Q: Does PEX need to be insulated under a slab?

A: Use adequate insulation both underneath the slab and at the perimeter/wall. 2" XPS foamboard is a popular choice for thick slabs (above and below grade) and is the most commonly recommended insulation for slabs with PEX radiant heating systems. Use a vapor barrier.

Q: How can you tell the difference between PEX A and PEX B?

A: The wall thickness of PEX A systems is normally greater than PEX B because it has a lower burst strength and hence requires the greater thickness to cope with the same opting pressures. Yes PEX A is more flexible than PEX B but both types of PEX have the same minimum bending radius.

Q: How do I stop my PEX pipe from sweating?

A: The Best Way to Stop Condensation on Water Pipes
Removable reusable insulation blankets, like Thermaxx Cold Insulation Jackets, are designed to fit snugly and keep the ambient air tempture and humidity from affecting your pipe.

Q: Where should you not use PEX?

A: Pex piping should not be used in high-tempture applications or in places where it will be exposed to direct sunlight for extended periods of time. Doing so can cause the material to degrade and potentially lead to leaks. It is also not advised to use pex piping for outdoor plumbing without proper protection.

As one of the leading pex pipe manufacturers and suppliers in China, we warmly welcome you to buy or wholesale bulk cheap pex pipe from our factory. All our products are with high quality and competitive price. Contact us for pricelist.

Pex Multilayer Pipe, Pex Pipe Plumbing, Pex Tubing

(0/10)

clearall