China factory ASTM Sch80 Standard PVC-U Plastic Plumbing Fittings Reducer Coupling for Water Supply

Product Description

ASTM SCH80 Standard PVC-U Plastic Plumbing Fittings Reducer Coupling for Water Supply


2) Size: 3/4″*1/2″-4″*3″
3) Standard: ANSI,DIN,JIS,CNS
4) Joint End: Socket


Size(mm) 3/4″*1/2″ 1″*1/2″ 1″*3/4″ 1-1/4″*3/4″ 1-1/4″*1″ 1-1/2″*1″ 1-1/2″*1-1/4″ 2″*1-1/4″
D(mm) 26.67  33.40  33.40  42.16  42.16  48.26  48.26  60.30 
L(mm) 39.50  42.50  45.50  48.50  51.50  56.00  61.00  64.00 
Z(mm) 37.00  30.00  30.00  33.00  33.00  36.00  36.00  39.00 
D1(mm) 21.34  21.34  26.67  26.67  33.40  33.40  42.16  42.16 
L1(mm) 39.00  42.00  45.50  50.00  53.00  57.50  61.00  67.00 
Z1(mm) 24.00  24.00  27.00  27.00  30.00  30.00  33.00  33.00 
Size(mm) 2″*1-1/2″ 2-1/2″*1-1/2″ 2-1/2″*2″ 3″*2″ 3″*2-1/2″ 4″*2-1/2″ 4″*3″
D(mm) 60.32  73.02  73.02  88.90  88.90  114.30  114.30 
L(mm) 64.00  74.00  80.00  83.00  89.50  99.50  107.50 
Z(mm) 39.00  46.00  46.00  49.00  49.00  59.00  59.00 
D1(mm) 48.26  48.26  60.32  60.32  73.02  73.02  88.90 
L1(mm) 70.00  76.50  79.50  87.50  107.00  107.00  110.00 
Z1(mm) 36.00  36.00  39.00  39.00  46.00  46.00  49.00 




#  Light weight, easy to load and unload 
#  Small resistance to fluidity 
#  Good electrical insulation 
#  Water quality unaffected 
#  Simple installation



* Potable water for cold and warm water installations
* For rainwater utilization systems
* For compressed air plants
* For swimming pool facilities
* For solar plants
* For agriculture and horticulture     
* Heating pipes for residential housing

Other Hot Salve Products

Meet us in Exhibition


FAQ: (Frequently Asked Questions)

1. What is your MOQ?
Our MOQ is usually 5 CTNS.

2. What is your delievery time?
Our delievery is about 25-30days.

3. What is your payment terms?
We accept T/T, 100% L/C, or West Union and so on.

4. Could you provide free samples?
Usually, we offer free samples, customers bear freight cost. 

5. Why choose us?

Firstly, comparing with many factories, our prices are more competitive.

Secondly, We 100% test working pressure for ALL our products.

Finally, After- Services will be highly satisfied. Any problems and feedbacks will be responded efficiently.


Company introduction

SWD PLASTIC (Salvador Industrial Co., Ltd) is a leading and professional manufacturer and exporter for UPVC, CPVC, PPH, PVDF pipes, valves and fittings in China. We stick to the principle of ” Quality First, Service First, Continuous Improvement and Innovation to Meet the Customers”, and the quality management objective of ” Zero Defect, Zero Complaints”. 

SWD Products are widely used in Agricultural Irrigation, Wastewater Treatment, Aquaculture, Pharmaceutical Industry, Electroplating, Papermaking Industry…

Most of our products confirm to ANSI, DIN, BS, JIS & TIS standard and have been already sold to United States, Canada, Mexico, Chile, Colombia, Peru, Russia, Saudi Arabia, UAE, Iran, Iraq, Thailand, Philippines, Indonesia, Malaysia etc. With very good reputation!

/* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

reducer coupling

How Do Temperature and Environmental Conditions Affect Reducer Coupling Performance?

The performance of reducer couplings can be influenced by temperature and environmental conditions. Here are some key considerations:

Temperature: Reducer couplings are typically made from materials that can withstand a wide range of temperatures. However, extreme temperatures can affect the coupling’s properties and performance. In high-temperature environments, certain materials may experience thermal expansion, which can impact the coupling’s dimensions and fit. Conversely, in very low temperatures, the materials may become more rigid and prone to cracking or brittleness. When selecting a reducer coupling, it’s essential to consider the temperature range it will be exposed to and choose a material that can handle those conditions.

Corrosive Environments: In corrosive environments, such as those with high humidity or chemical exposure, the materials used in the reducer coupling must be resistant to corrosion. Corrosion can weaken the coupling over time, leading to leaks or failure. Materials like stainless steel or PVC are often preferred for their corrosion resistance in such environments.

UV Exposure: For outdoor applications, UV exposure from sunlight can cause degradation of certain materials over time. UV-resistant materials or protective coatings may be necessary to prevent UV-induced damage.

Pressure and Load: Environmental conditions, such as changes in pressure or loads, can also impact the performance of reducer couplings. High-pressure applications require couplings that can handle the specific pressure ratings, and overloading the coupling beyond its capacity can lead to failure.

Hygiene and Cleanliness: In industries where hygiene is critical, such as food and beverage or pharmaceuticals, reducer couplings used in piping systems should be easy to clean and maintain to prevent contamination.

In summary, the proper selection of materials and design considerations based on the temperature and environmental conditions in which the reducer coupling will operate are crucial to ensuring its optimal performance and longevity. Following manufacturer guidelines and using couplings specifically designed for the intended environment will help maintain the coupling’s functionality and integrity over time.

reducer coupling

Specialized Reducer Couplings for Specific Types of Pipes

Yes, there are specialized reducer couplings designed to connect different types of pipes, such as PVC, stainless steel, copper, brass, and more. These couplings are engineered to ensure a secure and leak-proof connection between pipes with varying materials. Here are some examples of specialized reducer couplings for specific types of pipes:

  • PVC to PVC Reducer Coupling: This type of coupling is specifically designed to join PVC pipes of different diameters. It ensures a tight fit and prevents any leakage in PVC plumbing systems.
  • Stainless Steel to PVC Reducer Coupling: When transitioning from stainless steel pipes to PVC pipes, a specialized reducer coupling with appropriate sealing capabilities is used to maintain the integrity of the connection.
  • Copper to Copper Reducer Coupling: Copper pipes are commonly used in plumbing systems. A reducer coupling for copper pipes ensures a reliable and durable connection when transitioning between different pipe sizes.
  • Brass to PVC Reducer Coupling: Brass fittings are often used in water supply systems. A reducer coupling between brass and PVC pipes allows for a smooth transition while maintaining compatibility with both materials.
  • HDPE to Steel Reducer Coupling: High-density polyethylene (HDPE) pipes are used in various applications, and a specialized reducer coupling facilitates a secure connection when transitioning to steel pipes.
  • Copper to Galvanized Steel Reducer Coupling: When joining copper pipes with galvanized steel pipes, a reducer coupling designed for this specific transition is used to prevent corrosion and ensure a reliable connection.

These specialized reducer couplings are available in various sizes and configurations to accommodate the different pipe diameters and materials used in plumbing, industrial, and commercial applications. When selecting a reducer coupling for a specific pipe material, it is essential to consider factors such as compatibility, temperature, pressure, and the nature of the conveyed fluid to ensure a durable and leak-free connection.

reducer coupling

What are the Materials Commonly Used for Manufacturing Reducer Couplings?

Reducer couplings are manufactured using a variety of materials, each chosen based on its specific properties and suitability for different applications. The most commonly used materials for manufacturing reducer couplings include:

  • PVC (Polyvinyl Chloride): PVC is a widely used material for manufacturing reducer couplings in plumbing systems. It is lightweight, durable, and resistant to corrosion, making it suitable for both indoor and outdoor applications. PVC couplings are commonly used in residential and commercial plumbing installations.
  • CPVC (Chlorinated Polyvinyl Chloride): CPVC shares similar properties with PVC but has enhanced temperature and pressure resistance. This makes CPVC reducer couplings suitable for hot water and higher-pressure applications.
  • ABS (Acrylonitrile Butadiene Styrene): ABS is known for its high impact resistance and durability. ABS reducer couplings are commonly used in drain and waste systems, vent lines, and other low-pressure applications.
  • Brass: Brass reducer couplings are valued for their excellent corrosion resistance and strength. They are often used in plumbing systems where there is a need for a more robust and reliable connection.
  • Copper: Copper is known for its superior conductivity, making it suitable for applications that require electrical grounding. Copper reducer couplings are commonly used in water supply lines and heating systems.
  • Stainless Steel: Stainless steel reducer couplings offer excellent corrosion resistance and are ideal for applications that involve aggressive or harsh environments, such as chemical processing or marine applications.
  • Ductile Iron: Ductile iron is used for manufacturing heavy-duty reducer couplings designed for industrial and large-scale applications. It provides high strength and durability.

When selecting a reducer coupling material, factors such as the fluid or gas being conveyed, temperature and pressure requirements, environmental conditions, and the overall application must be taken into consideration. Additionally, compliance with industry standards and regulations is essential to ensure the reducer coupling’s reliability and safety.

China factory ASTM Sch80 Standard PVC-U Plastic Plumbing Fittings Reducer Coupling for Water Supply  China factory ASTM Sch80 Standard PVC-U Plastic Plumbing Fittings Reducer Coupling for Water Supply
editor by CX 2024-02-15