Tag Archives: hdpe reducing

China factory New HDPE Compression Fittings Reducing Coupling

Product Description


Product Description

PP Compression Fitting Plastic Reducing coupler for Agricultural Irrigation Systems

     The straight compression fitting production line for pipe fittings is designed for applications in the fields of fluid transportation, water transportation, and drinking water distribution. This product line meets the strictest international standards for agricultural irrigation and garden system connection irrigation. 


1. Light weight, easy to load and unload.
2. Good  chemicals and drugs resistance.
3. Small resistance to fluidity.
4. Strong mechanical strength.
5. Good electrical insulation.
6. Water quality unaffected.
7. Simple installation.


Product Parameters


Product List

Code product name size
pcs/pe carton Material 
TLK-L-05  Reducing coupler


25*20 650 HDPE
32*25 400 HDPE
32*20 470 HDPE
40*32 280 HDPE
40*25 300 HDPE
50*40 170 HDPE
50*32 200 HDPE
50*25 220 HDPE
63*50 100 HDPE
63*40 110 HDPE
63*32 120 HDPE
63*25 130 HDPE
63*20 140 HDPE

Product Application




Packaging & Shipping



Installation Instructions


Company Profile

     ZheJiang HangZhou Shuofeng Plastic Products Factory, formerly known as ZheJiang HangZhou CHINAMFG Plastic Products Factory, is a professional manufacturer of various pipeline Haffen Festival products such as PE Haffen Festival, PVC Haffen Festival, Haffen Festival, inner rotating nozzle, outer rotating nozzle, farmland irrigation outlet, additional interface, and Trumac pipe fittings. Our factory has a strong technical force, with a complete set of advanced production equipment and technical personnel with over 20 years of production experience. Our patented product, which is developed and produced by our factory, is a convenient and debuggable union pipe fitting. While maintaining the original performance of the pipe fittings, it perfectly solves the connection methods such as threading, welding, bonding, and electric melting that are necessary for pipeline installation and maintenance. This makes pipeline installation and maintenance simple and easy, changes the heavy labor working environment and complex installation processes, and improves work efficiency several times, reducing the costs of special tools, equipment, and professionals, Adapt to the requirements of green environmental protection. Created and developed the pipe fitting industry, with convenient, fast, efficient, and energy-saving new processes for pipeline installation and maintenance. This product is suitable for various pipeline projects such as water, heating, and chemical engineering. Currently, the company has developed and produced plastic pipe fittings in 10 specifications and dozens of varieties. Widely used for installation and maintenance of pipeline engineering in construction, chemical, petroleum, and other fields.
     For many years, our factory has always adhered to the business philosophy of “practicality and efficiency, innovation, quality first, integrity first, and customer demand as the core”. While focusing on local market development, we have set up a direct sales point in HangZhou, covering more than 20 provinces across the country. H



1.What is your minimum order quantity?

Our minimum order quantity is usually 5 boxes, with sizes ranging from 20-63mm.


2. What is your production time each time?


The production time is approximately 15-30 days.


3. What are your payment terms?


We accept 50% prepayment T/T, 50% pre shipment payment, or 100% letter of credit.


4. What is the loading port?


We ship the goods to ZheJiang or Port of HangZhou.


5.What is the address of your company?


Our company is located in HangZhou City, ZheJiang Province, China. Welcome to visit our factory.


6. How about the sample?


We can send you samples for free, and you will need to pay the courier fee.


If there are too many samples, you will also need to bear the sample fee.

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compression coupling

Industry Standards and Guidelines for Compression Couplings in Plumbing

Compression couplings in plumbing are subject to industry standards and guidelines that ensure proper installation, performance, and safety. Some notable standards include:

  • ASTM F2080: This standard specifies requirements for compression fittings and couplings for use with PEX tubing in potable water systems. It covers dimensional, material, and performance requirements to ensure reliable connections.
  • NSF/ANSI 61: This standard establishes requirements for products that come into contact with drinking water, including compression couplings. It ensures that materials and products do not leach harmful substances into the water supply.
  • Local Building Codes: Many regions have specific building codes that dictate the use of compression couplings in plumbing systems. These codes ensure compliance with safety and quality standards.

Installers and plumbing professionals should adhere to these standards and guidelines to ensure that compression couplings are used appropriately and provide reliable and safe connections.

compression coupling

Design Contributions to Leak-Proof Performance of Compression Couplings

The design of compression couplings plays a significant role in ensuring their leak-proof performance. Several design elements contribute to this:

1. Compression Seal: The core principle of compression couplings is the compression seal. These couplings feature a threaded nut that, when tightened, compresses the fitting onto the pipe or tubing. This creates a secure and tight connection that prevents leaks. The compression action of the nut forces the sealing material against the pipe, creating a watertight seal.

2. Sealing Materials: Compression couplings often include a sealing material, such as a rubber gasket or an O-ring. This material helps to create a reliable seal between the coupling and the pipe. The choice of sealing material is crucial, as it needs to be compatible with the fluid being transported and resistant to deterioration over time.

3. Threaded Design: The threading on the compression coupling and the corresponding pipe or tubing ensures a secure connection that resists forces that could cause the coupling to come loose. The threads maintain a consistent pressure on the sealing material, maintaining the integrity of the seal even under pressure or movement.

4. Precision Manufacturing: High-quality manufacturing processes ensure that the components of the compression coupling fit together precisely. This minimizes the risk of gaps or imperfections that could lead to leaks. Precision manufacturing also contributes to the durability and long-lasting performance of the coupling.

5. Visual Inspection: Many compression couplings have a visible indicator that shows when the coupling is properly tightened. This visual cue helps installers ensure that the coupling is tightened to the correct level, enhancing the reliability of the seal.

The combination of these design features results in compression couplings that provide a dependable and leak-proof connection for plumbing and piping systems.

compression coupling

Compression Couplings in Plumbing and Piping Systems

A compression coupling is a type of coupling used in plumbing and piping systems to connect two pipes or tubing sections together. It is commonly employed for joining pipes of the same or different materials and sizes. The compression coupling consists of several components:

  • Outer Sleeve: This cylindrical component provides structural support and stability to the coupling.
  • Inner Sleeve: The inner sleeve is inserted over the end of the pipe and serves as the sealing element.
  • Nut: The nut is threaded onto the outer sleeve and compresses the inner sleeve against the pipe, creating a watertight seal.
  • Compression Ring: Also known as the compression ferrule, this component sits between the inner sleeve and the nut, ensuring proper compression and sealing.

The compression coupling is used in plumbing and piping systems for various purposes:

  • Leak Repair: Compression couplings can quickly repair leaking pipes without the need for soldering or welding.
  • Joining Different Pipes: They allow for the connection of pipes made from different materials, such as copper, PVC, or PEX.
  • Temporary Connections: Compression couplings are sometimes used for temporary connections or repairs.
  • Flexibility: They provide some flexibility to accommodate minor misalignments or movement.

Compression couplings are a convenient solution for various plumbing and piping applications, making them a commonly used component in residential, commercial, and industrial settings.

China factory New HDPE Compression Fittings Reducing Coupling  China factory New HDPE Compression Fittings Reducing Coupling
editor by CX 2023-12-27