-
Säker anslutning:
Gängkopplingar är utformade för att skapa en säker och tät anslutning mellan två gängade rör eller kopplingar. De har invändiga gängor i båda ändar, vilket gör att de kan skruvas på de yttre gängorna på rören eller kopplingarna. När den väl är åtdragen bildar kopplingen en robust skarv som förhindrar läckage och säkerställer vätske- eller gasflöde utan avbrott.
-
Mångsidiga applikationer:
Gängkopplingar kan användas inom ett brett spektrum av industrier, inklusive VVS, VVS (värme, ventilation och luftkonditionering), bevattning och industriella rörsystem. De används för att ansluta rör, ventiler och fixturer i bostäder, kommersiella och industriella miljöer, vilket ger en bekväm och effektiv lösning för sammanfogning av gängade komponenter.
-
Materialval:
Gängkopplingar finns i olika material för att passa olika driftsförhållanden och media. Vanliga material inkluderar mässing, rostfritt stål, kolstål och PVC (polyvinylklorid). Valet av material beror på faktorer som korrosionsbeständighet, tryckklassning, temperatur och kompatibilitet med vätskan som transporteras.
-
Enkel installation:
En av de viktigaste fördelarna med gängkopplingar är deras enkla installation. De kan snabbt och enkelt skruvas på gängade rör eller kopplingar med hjälp av grundläggande verktyg som skiftnycklar eller rörtång. Denna enkelhet i installationen minskar arbetskostnaderna och stilleståndstiden, vilket gör gängkopplingar till ett föredraget val för VVS-reparationer, underhåll och installationer.
-
Läcksäker tätning:
Gängkopplingar är utformade för att skapa en läcksäker tätning mellan de anslutna komponenterna. Gängorna på kopplingen griper in i gängorna på rören eller kopplingarna, vilket skapar en tät och säker anslutning som förhindrar att vätska eller gas läcker ut. Korrekt installation och åtdragning av kopplingen säkerställer en pålitlig tätning som tål tryck och bibehåller integriteten över tid.
-
Kompatibilitet:
Gängkopplingar finns i olika storlekar och gängstandarder för att säkerställa kompatibilitet med olika rördiametrar och gängtyper. Gemensamma gängstandarder inkluderar NPT (National Pipe Thread), BSP (British Standard Pipe) och metriska gängor. Det är viktigt att välja kopplingar som matchar gängstorleken och typen av de rör eller kopplingar som ansluts för att säkerställa en korrekt passning och tätning.




Gängkopplingar är oumbärliga beslag i VVS och industriella rörsystem, vilket ger en enkel men effektiv lösning för att säkert sammanfoga gängade komponenter. Deras säkra anslutning, mångsidighet, enkla installation, läckagesäkra tätning, materialalternativ och kompatibilitet gör dem till väsentliga komponenter i olika applikationer där pålitliga röranslutningar krävs. Med gängkopplingar kan proffs och gör-det-själv-entusiaster uppnå effektiva och hållbara rörinstallationer, vilket säkerställer smidig och problemfri drift av VVS-system.




Coupling Thread Types
In the world of piping and plumbing, coupling threads play an essential role in ensuring seamless connections between pipes. Different types of coupling threads are designed for specific applications, and comprehending these types can greatly enhance the functionality and performance of any piping system. One common variant is the 3-inch threaded coupling, which is widely used across various industries.
What are Coupling Threads?
Coupling threads refer to the helical grooves formed on the exterior of a coupling, which allow two pipes to be securely joined. The design and specifications of these threads can vary significantly based on the materials involved and the intended purpose of the connection. Understanding these variations is vital for selecting the right type of coupling for your project.
Types of Coupling Threads
There are several primary types of coupling threads, including NPT (National Pipe Thread), BSP (British Standard Pipe), and metric threads. Each type has distinct characteristics that make them suitable for different environments.
1. NPT Threads: National Pipe Tapered threads are commonly used in the United States. They have a taper that ensures a tightly sealed connection as the threads engage with one another. The 3-inch threaded coupling is often available in this thread type, which is ideal for applications requiring a strong gas or liquid seal.
2. BSP Threads: British Standard Pipe threads are widely used in the UK and other countries. These threads are designed with a different taper and are often found in water and gas lines. Like NPT, 3-inch BSP threaded couplings are also available, catering to various industry requirements.
3. Metric Threads: These threads are defined by their diameter in millimeters and are commonly used outside of North America. Thread specifications can vary, making it imperative to ensure compatibility when working with international piping systems.
Threaded Coupling Dimensions
Diameter | Thread Type/Standard | Material | Length | Applications |
1/4" (1/4-20) | UNC/UNF | Stainless Steel | 1–4" | Small machinery, electronics |
3/8" (3/8-24) | NPT, BSP | Carbon Steel | 2–6" | Plumbing, automotive |
1/2" | NPT, BSPT | Brass, ABS | 2–8" | Water lines, gas systems |
3/4" | NPT, BSPP | Hot-Dip Galvanized | 3–12" | Industrial piping, HVAC |
1 1/2" | NPT, BSPT | ABS, PVC | 4–16" | Drainage, chemical systems |
2" | ANSI B1.20.1 | Carbon Steel | 6–24" | Heavy-duty construction, oil/gas |
2 1/2" | NPT | Stainless Steel | 8–24" | Marine, high-pressure pipelines |
4" | BSPP | Hot-Dip Galvanized | 12–36" | Sewage, large-scale infrastructure |
6" | ANSI B16.11 | Carbon Steel | 24–48" | Petrochemical plants |
Metric Sizes | ||||
10mm | M10×1.5 | Aluminum | 20–80mm | Precision equipment |
20mm | M20×2.5 | Stainless Steel | 50–200mm | Machinery, robotics |
32mm | BSPP | Brass | 100–300mm | Hydraulic systems |
40mm | Solvent Weld | PVC | 150–400mm | Irrigation, wastewater |
50mm | BSPT | Hot-Dip Galvanized | 200–500mm | Structural frameworks |
Key Features & Variations
All-Thread Couplings: Available for 1/4", 3/8", 5/8", and 3/4" rods (lengths customizable).
Solvent Weld Options: 40mm PVC couplings for leak-proof chemical resistance.
Hot-Dip Galvanized: ASTM A153-certified for corrosion-prone environments.
ABS/PVC Couplings: Lightweight, non-conductive solutions for electrical and plumbing systems.
Why Choose Yulong Threaded Couplings?
Precision Threading: CNC-machined threads ensure perfect alignment and sealing.
Bulk Pricing: Discounts on orders over 100 units.
Custom Sizes: Tailor-made couplings for unique industrial needs (e.g., 1.5", 8", M20).
Fast Global Shipping: Ready stock for 90% of listed sizes.
Explore our full range or [contact Yulong] for technical support!
Coupling Thread FAQs
Q1: What is a thread coupling, and what applications is it suitable for?
A1: A thread coupling is a mechanical component designed to connect two threaded components securely. It ensures a robust and reliable connection in various applications such as plumbing, piping systems, hydraulic systems, and in mechanical assemblies. Due to its versatility, it is commonly used in construction, manufacturing, and automotive industries. By providing a strong coupling solution it minimizes leakage or disconnection risks, making it ideal for both residential and industrial projects.
Q2: How do I know if this thread coupling is compatible with my existing equipment?
A2: To determine compatibility, you need to check the specifications of your existing equipment, including the thread size and type—such as NPT, BSPT, or metric threads. Our thread coupling is available in various sizes to ensure that you can find the right fit for your application. If you're still unsure, please consult the product datasheet or reach out to our customer service team for professional assistance in finding the perfect match for your needs.
Q3: What materials are used in your thread couplings, and are they durable?
A3: Our thread couplings are made from high-quality materials, including stainless steel, brass, and durable plastics, depending on the specific version you choose. Stainless steel and brass options offer exceptional corrosion resistance and superior strength, making them suitable for demanding environments. You can trust our thread couplings to provide a long-lasting and reliable connection, even under high-pressure conditions.
Q4: Are these thread couplings easy to install, or do I need professional help?
A4: Our thread couplings are designed for straightforward installation, allowing for quick connections without the need for specialized tools. With a simple thread connection, you can easily install them by hand or with standard tools, depending on the application. However, if you are unsure or are working on a complex system, we recommend consulting with a professional to ensure optimal performance and safety.
Q5: Do you offer warranties or guarantees on your thread couplings?
A5: Yes, we stand behind the quality of our thread couplings and offer a warranty that covers any manufacturing defects. If you experience any issues within the warranty period, we will gladly assist you with a replacement or refund. Customer satisfaction is our priority, and we are committed to ensuring you have a positive experience with our products. Feel confident in your purchase, knowing we support our customers long after the sale.