|Product name||Steel Couplings|
|Material||carbon steel(cold rolled steel sheet,galvanized steel sheet),stainless steel,copper,brass,aluminum,etc|
|Surface treatment||All kinds of surface treatment is anodizing, zinc plating, black oxide, chrome plating, powder coating, ect|
|Size||According to customer’s design or samples|
Packaging & Shipping
|Our company was founded in 2000, specialized in customize springs, axles, screws, plastic/metal stamping parts, CNC machining parts and auto lathe parts. Our main production modes are designing and proofing based on drawings, concepts and samples provided by customers. We provide samples for customers for review, verification and confirmation and then put into production as follows:|
|Our company has 5,000 square CZPT of production workshops and more than 120 employees divided into 4 workshops – spring / stamping / screw / axle:|
|1) Spring Department: with 20 sets of 502 computer omnipotent machines, 12 sets of computerized compression spring machines and supporting heat treatment / projector / pull pressure test machines. Daily output: 300,000 pieces of profiled springs and 800,000 pieces of compression springs.|
|2) Stamping Department: with 25 sets of 10T-45T punches, 3 sets of wire cutting machines and a full set of hardware stamping mold equipment. Providing a full set of services, including proofing, molding, design and stamping. Daily output: 1,200,000 pieces of various types of metal stamping parts.|
|3) Screw Department: with 45 sets of 0# – 2.5# heading / roll machines. Daily output: 3,000,000 pieces of M1.2 ~ M8 3.5MM ~ 120MM plastic and alloy screws, tacks and rivets.|
|4) Axle Department: with 21 sets of semi-automatic / automatic toy axle machines. Daily output: 2,000,000 pieces of #1.0 ~ #8.0 various axes / rubbing spent axes.|
|Quality Control||Product Technology|
|we stress the concept of “quality is the life of our enterprise”, using the first 3 pieces product inspection and the whole production inspection ways for strict quality control. Following the requests of RoHS and Heavy Element, we send products to the third party notarization institute for internationally recognized inspection, with complete inspection report. Our factory has our own salt spray machines and can test all kinds of metal surface treatment of anti-rust effect, in order to ensure the quality of our products.||our factory has a group of professional engineering and technical personnel in the processes of design and production, providing professional advice, converting the concepts from guests into controlled products and helping customers to solve professional problems and reduce the production costs. Each department has a number of professional chefs, with the most advanced equipment in the industry, improving our efficiency, quality and stability to produce high quality and inexpensive products.|
|In the processes of following up samples / production, we have a number of sales personnel who will make all-out efforts and make quality / delivery / price / needs as per your requirements to meet your expectations as far as possible.||In the terms of credibility, we guarantee the quality of our products, adhere to business ethics and keep commercial secrets.|
1. who are we?
We are based in ZheJiang , China, start from 2018,sell to North America(30.00%),Domestic Market(30.00%),Western Europe(10.00%),Northern Europe(9.00%),Oceania(5.00%),Southern Europe(5.00%),South America(4.00%),Southeast Asia(3.00%),Eastern Europe(00.00%),Africa(00.00%),Mid East(00.00%),Central America(00.00%). There are total about 51-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Hardware Products (Stamping Part,Auto Lathe & CNC Turning Parts,CNC Milling Parts,Spring,Shaft,Fastener)
4. why should you buy from us not from other suppliers?
Our company was established in 2000, with over 18 years manufacture experience. We customize high precision metal fittings. Our specialities are: Metal/Plastic Stamping Parts CNC Machining Parts CNC Lathe Parts Springs ,nuts ,screw,bolts etc fasteners
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,DDP,DDU,Express Delivery;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
How do you Properly Install and Secure a Half Coupling to Ensure a Leak-Free Connection?
Properly installing and securing a half coupling is essential to ensure a leak-free and reliable connection in piping and plumbing systems. Follow these steps to achieve a secure joint:
- Cut and Prepare the Pipe: Start by cutting the larger pipe to the desired length, ensuring a clean and even edge. Use a deburring tool or file to remove any sharp edges or burrs that could interfere with the coupling’s sealing surface.
- Check Threads and Fit: For threaded half couplings, inspect the internal threads of the coupling and the external threads of the pipe. Make sure they are clean and free from debris or damage. Ensure that the threads match and fit properly, as any misalignment can lead to leaks.
- Apply Thread Sealant: Before attaching the half coupling, apply a suitable thread sealant, such as Teflon tape or pipe dope, to the male threads of the pipe. The sealant helps prevent leaks by filling any gaps or imperfections in the threads.
- Attach the Half Coupling: Thread the half coupling onto the pipe’s male threads carefully. Use a wrench to ensure a snug fit, but avoid over-tightening, as it may damage the threads or cause stress on the joint.
- For Socket Weld or Butt Weld Couplings: For socket weld half couplings, insert the smaller pipe into the coupling’s socket and align it properly. For butt weld half couplings, weld the coupling to the larger pipe’s end with proper welding techniques and safety measures. Follow industry standards for welding procedures and ensure a smooth and consistent weld for a leak-free joint.
- Check for Leaks: After installation, perform a leak test to ensure the joint is secure. Apply a pressure test or use a suitable leak-detection method to verify the connection’s integrity. If any leaks are detected, disassemble the joint, inspect for issues, and reassemble following the proper steps.
- Consider Thermal Expansion: In applications with temperature variations, consider the thermal expansion and contraction of the pipes. Provide sufficient flexibility in the system to accommodate these changes and prevent stress on the joints, which could lead to leaks over time.
- Follow Manufacturer’s Instructions: Always follow the manufacturer’s instructions and recommendations for the specific type and material of the half coupling being used. Different couplings may have unique installation requirements and torque specifications.
Proper installation and securing of a half coupling are crucial for maintaining the integrity of the piping or plumbing system and ensuring a leak-free connection. Following these steps and adhering to industry standards will help achieve a reliable and durable joint.
How do you Select the Right Half Coupling Material Based on the Fluid or Gas being Conveyed?
Choosing the appropriate material for half couplings is essential to ensure their compatibility with the fluid or gas being conveyed. The selection process involves considering several factors related to the nature of the conveyed substance and the specific operating conditions. Here’s a step-by-step guide on how to select the right half coupling material:
- Identify the Conveyed Fluid or Gas: Determine the type of fluid or gas that will flow through the piping system. Different materials may be required depending on whether the conveyed substance is water, oil, gas, chemicals, steam, or any other medium.
- Consider the Chemical Compatibility: Evaluate the chemical properties of the conveyed substance. Some fluids or gases can be corrosive or reactive with certain materials. Look for half coupling materials that are chemically resistant to the specific medium to prevent degradation or premature failure.
- Assess the Temperature and Pressure: Take into account the operating temperature and pressure of the system. High-temperature fluids or gases may require materials with excellent heat resistance, while high-pressure applications demand strong and durable coupling materials that can withstand the stress.
- Check for Abrasion or Erosion: In systems where the conveyed substance contains solid particles or abrasive materials, consider half coupling materials with good wear resistance to prevent premature wear and damage to the coupling surface.
- Verify Material Standards: Ensure that the selected half coupling material complies with relevant industry standards such as ASTM, ASME, API, or ISO. These standards define the material’s properties and performance criteria, providing a reliable benchmark for quality and suitability.
- Consider Environmental Conditions: Evaluate the environmental factors that can affect the coupling’s performance, such as humidity, UV exposure, or exposure to harsh chemicals. Choose materials with appropriate coatings or properties to withstand the specific environmental conditions.
- Factor in Cost and Availability: Balancing performance requirements with cost considerations is essential. Select a half coupling material that meets the necessary performance criteria while fitting within the project’s budget. Additionally, ensure that the chosen material is readily available for procurement.
Common materials used for half couplings include carbon steel, stainless steel, alloy steel, brass, bronze, and various plastics such as PVC, CPVC, and PTFE. Each material has its advantages and limitations, making the selection process critical for a successful and reliable piping system.
By carefully considering the conveyed fluid or gas, chemical compatibility, temperature, pressure, abrasion resistance, and other relevant factors, you can make an informed decision and select the right half coupling material that will ensure a safe and efficient operation of the piping system.
What are the Standard Sizes and Dimensions Available for Half Couplings?
Half couplings, as pipe fittings used in piping and plumbing systems, are available in various standard sizes and dimensions to accommodate different pipe sizes and applications. The sizes and dimensions of half couplings depend on the pipe’s nominal diameter and the specifications set by industry standards organizations. Some common standard sizes and dimensions for half couplings are as follows:
- Thread Sizes: Half couplings come with different thread sizes to match the corresponding pipe threads. Common thread sizes for half couplings include 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1-1/4″, 1-1/2″, 2″, 2-1/2″, 3″, 4″, 5″, 6″, and larger.
- Length: The length of a half coupling refers to the distance from one end to the other. It is typically a few inches, depending on the pipe size and application requirements. Lengths for half couplings can range from around 1 inch to 12 inches or more.
- Outer Diameter (OD): The outer diameter of a half coupling refers to the measurement across the widest point of the coupling’s external surface. It corresponds to the pipe’s outer diameter it is intended to connect to. Common OD sizes for half couplings include 1.05″, 1.32″, 1.66″, 1.90″, 2.38″, 2.88″, 3.50″, 4.50″, 5.56″, 6.63″, 8.63″, and others.
- Materials: Half couplings are available in various materials, as mentioned in the previous answer. The material selection depends on factors such as the type of fluid being transported, the temperature, the pressure, and the corrosion resistance requirements.
It is essential to refer to industry standards, such as ANSI (American National Standards Institute), ASME (American Society of Mechanical Engineers), or ASTM (American Society for Testing and Materials), to ensure that the half couplings meet the specific dimensional and material requirements of the application.
When selecting a half coupling, it is crucial to consider the following factors:
- Pipe Size Compatibility: Ensure that the half coupling’s thread size matches the pipe’s thread size to create a secure and leak-proof connection.
- Application Requirements: Consider the operating conditions, including pressure, temperature, and the nature of the fluid being transported, to choose the appropriate material and dimensions for the half coupling.
- Standards Compliance: Select half couplings that meet industry standards to ensure safety and compatibility with other components in the system.
In summary, half couplings are available in various standard sizes and dimensions, with different thread sizes and materials to accommodate diverse pipe sizes and applications. Proper selection based on the specific requirements of the piping or plumbing system is essential for ensuring a reliable and efficient connection between pipes.
editor by CX 2023-08-18