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PEX System

Primy Pipe Company:Your Professional PEX System Manufacturer!
 

For 15 years, Primy Pipe Company has been manufacturing and deverloping PPR pipe & fitting, PEX/PERT pipe & fitting, PEX-AL-PEX pipe & fitting and piping tools. Our company has four workshops and a large warehouse with an area of more than 10000 square meters.Production capacity reaches 100 containers of pipes per year and 100 tons of fittings per month.

 

 
 
Why Choose Us

Our Service

We focus on understanding each client's unique needs and offer customized solutions to ensure satisfaction from all clients.

Wide Range of Applications

Our products are widely used in the fields of Residential and commercial water supply, Underfloor heating system, Natural gas transmission, Compressed air lines, etc.

High Quality Equipment

We deliver at mass volumes thanks to the efficiency of more than 100 employees working on 12 pipe production lines (4 lines for PPR pipe, 3 lines for Overlapped Ultrasonice welding PEX-AL-PEX pipe, 3 lines for butt-welded.

 

Cutting-edge technology

We constantly invest in the latest technology and machinery to ensure that our manufacturing process is efficient and precise. By staying up-to-date with advancements in the industry, we can deliver pipes that meet the highest standards of quality and performance.

 

Types of PEX System
 

The PEX system produced by our company mainly include the following types:

PEX-A Pipe

PEX-A pipe is a cross-linked polyetheylene tube designed in both residential and commercial plumbing applications. PEX stands for cross-linked polyethylene, representing the chemical process that converts standard polyethylene into a stronger, more durable and flexible material. The crosslinking enables PEX tubing to withstand extreme temperatures as well as expansion and contraction that would cause rigid pipes to fail over time.

 

Material

PE-Xa

Size

12x2.0mm, 14x2.0mm, 16x2.0mm, 17x2.0mm, 18x2.0mm, 20x2.0mm

Working Pressure

0.6MPa (6bars)

Working Temperature

-20℃-95℃

Packing

Export package or as customer's request

Color

White, red, blue, and other customized color

Applications

Cold water supply, hot water supply, gas supply and undefloor heating

Oxygen resistance

≤0.1g/m³d

PEX-B Pipe

PEX-B pipes are made from cross-linked polyethylene and cross linked by SILANE method (PE-Xb). PEX-B is created using the silane method of crosslinking. The polyethylene is immersed in a hot silane grafts the molecular chains together. This crosslinking creates a durable pipe material capable of withstanding temperature fluctuations, water pressure, corrosion and material stresses.

 

Material

PE-Xb

Size

16mm-32mm

Working Pressure

0.6MPa (6bars)

Working Temperature

-20℃-95℃

Packing

Export package or as customer's request

Color

White, red, blue, and other customized color

Applications

Cold water supply, hot water supply, gas supply and undefloor heating

Oxygen resistance

≤0.1g/m³d

 

Advantages of PEX-A Pipe

 

Temperature resistance

PEX-A pipe has a maximum service temperature rating of 180°F and won't degrade over time from hot water cycling. It can withstand up to 200° brief temperature exposure.

01

Freeze resistance

The flexible nature of PEX-A pipe allows it to expand when water freezes inside the pipe, reducing the risk of ruptures and leaks. It can tolerate freezing temperatures down to -76°F.

02

Durability

With no joints that can come loose over time, PEX-A is a single continuous length of pipe that is highly resistant to scale build-up and abrasion from water flow.

03

Flexibility

PEX-A tubing can bend and flex easily, allowing for faster and simpler installations. Tight 90 degree turns can be made without elbow fittings.

04

Corrosion resistance

PEX-A pipe is nonreactive and withstands exposure to a wide range of chemicals, acids, bases, salts and minerals found in water supplies.

05

 

 
 
Application of PEX-A Pipe
PERT EVOH管

Drinking water

PEX-A pipes are particularly suitable for use as drinking water pipes due to their tasteless and odorless properties.

PEX-A管

Floor heating

PEX-A pipes are ideal for use as floor heating pipes due to their oxygen barrier properties, corrosion resistance and flexibility.

PEX-B管

District heating

PEX-A pipes are characterized by their high folding resistance and stability and, due to their pressure resistance, they increase the safety of district heating systems.

PEX EVOH管

Chemical pipes

PEX-A pipes are also suitable for special applications, such as chemical supply lines, as their high resistance ensures long-term safe use.

 

 

Advantages of PEX-B Pipe
 

UV resistance
One of the notable characteristics of PEX B is its resistance to UV rays. This makes it suitable for both outdoor and indoor applications where exposure to sunlight is a concern. PEX B pipes are commonly used in radiant heating systems or outdoor plumbing installations.

 

Durability
PEX B pipes offers excellent resistance to chlorine and oxidative degradation, making it highly durable in potable water systems.

 

Affordable
PEX B pipes are more affordable compared to PEX A, making them a popular choice for budget-conscious homeowners and contractors. Despite being slightly less flexible than PEX A, they still offer excellent durability and resistance to cracking or bursting under normal operating conditions.

 

Easy to install
Another advantage of using PEX B is its ease of installation. It can be easily cut with a standard pipe cutter and does not require any special tools or equipment. This makes it an ideal choice for DIY enthusiasts who prefer to tackle their plumbing projects without professional assistance.

 

Application of PEX-B Pipe

 

Plumbing

Hot and Cold Water Distribution: PEX-B is widely used for plumbing supply lines, delivering both hot and cold water to fixtures in residential and commercial buildings.

Municipal Water Service Lines: PEX-B can be used for water service lines from the main to a building, offering a durable and corrosion-resistant option.

Heating Systems

Radiant Heating and Cooling: PEX-B is frequently used in radiant floor heating and cooling systems, where it's embedded in floors, walls, or ceilings to provide even heat distribution.

Hydronic Heating: PEX-B can be used in hydronic heating systems, including those with radiators, fan coils, and other heat emitters.

Snow and Ice Melting: PEX-B pipes can be installed in outdoor areas like driveways and sidewalks to melt snow and ice, preventing buildup and hazards.

Geothermal Heating and Cooling: PEX-B is suitable for geothermal ground loops, both in vertical boreholes and horizontal layouts, for efficient heating and cooling.

Other Applications

Reclaimed Water Piping: PEX-B can be used for non-potable water applications, such as reclaimed water systems.

Pre-insulated Piping: PEX-B can be pre-insulated for buried applications, providing efficient heat or cold transfer in underground systems.

 

The Difference Between PEX A and PEX B Pipes

Manufacturing Process
•PEX A: PEX A is made using the "Engel" method, which involves cross-linking the polyethylene molecules through a peroxide reaction. This process results in a more flexible and pliable material. PEX A also has the advantage of being the most resistant to kinking and can be easily re-shaped if bent.

•PEX B: PEX B is made using the "Silane" method, where the cross-linking is achieved through a moisture-cure process. While PEX B is still flexible and resistant to freezing, it tends to be slightly stiffer than PEX A.

 

Flexibility and Kink Resistance
•PEX A is more flexible and has better resistance to kinking compared to PEX B. PEX A pipes can be bent to a tighter radius, making them more suitable for installations in tight spaces.

 

Price and Availability
•PEX B tends to be less expensive than PEX A due to its different manufacturing process. However, PEX A is often favored for its greater flexibility and ability to "self-repair" kinks with heat.

 

Fittings and Connections
•PEX A: PEX A is often used with the "expansion" fitting method. This involves expanding the pipe and fitting it over a specialized metal insert before contracting back around the fitting. This connection method is more secure and leak-resistant.

•PEX B: PEX B typically uses crimp or clamp fittings, which involve crimping a metal ring around the pipe and fitting to create a seal. This is a more common method for DIY projects, as crimping tools are widely available.

 

 

Packaging and Shipping

 

productcate-599-407                     productcate-599-407

 

FAQ

 

Q: lt is possible to get samples from your factory?

A: Yes.free samples will be sent if needed but the freight can be negotiated or chargeable it will be refunded after confirmation of the order.

Q: How long is the delivery time?

A: According to your order quantity, normally, 10-15 days after deposit received.

Q: What is your payments?

A: T/T,30% deposite and 70% balance should be made before shippment.

Q: What is your packing?

A: Usually plastic bags,carton,can be packed as your require.

Q: Can I use PEX A and PEX B together?

A: Yes, but ensure you use compatible fittings to avoid leaks.

Q: Which type of PEX is better for outdoor use?

A: PEX A is generally better due to its freeze resistance.

Q: Can you use PEX B for hot water?

A: Yes, PEX B is used for hot water in most plumbing systems. It doesn't melt, and its thermal-resistant level is great. Generally, PEX tubing can withstand the high and low temperatures in typical plumbing and heating applications.

Q: What is the lifespan of PEX B?

A: PEX-B, a type of PEX tubing, generally has a lifespan of 40 to 50 years under normal operating conditions. Factors like water quality, proper installation, and environmental exposure can impact this lifespan.

Q: Can I bend PEX B pipes?

A: Yes, but they require more fittings compared to PEX A.

Q: Can I use crimp rings on PEX a?

A: Yes, you can use crimp rings on PEX-A tubing, but only with specific PEX-A fittings that are designed for crimping. PEX-A, also known as expansion PEX, is compatible with both expansion and crimp fittings. If using crimp fittings, ensure the fitting type (e.g., ASTM F1807) is compatible with the crimp rings and PEX-A tubing.

As one of the leading pex system manufacturers and suppliers in China, we warmly welcome you to wholesale cheap pex system made in China here from our factory. All our products are with high quality and low price. Contact us for pricelist.

Steel PPR Fitting, PERT Pipe for Underfloor Heating