Product Description
Male Thread With Helical Shank French Fire Hose Quick Coupling
The standard of Guillemin Coupling is EN14420-8 or NF E29572. Materials are mainly stainless steel, aluminum, polypropylene and brass. Guillemin hose couplings is connected with thread and locking ring (latch). It can be used with DIN2817 safety clamp. Working pressure is 10 bar. Guillemin coupling is widely used in industries of oil, chemical, fire protection, paper manufacture, construction and metallurgy.
Guillemin couplings, also referred to as French couplings are symmetrical couplings where to identical halves are assembled by joining the lugs and turning the locking ring to ensure a good connection.
Pros:
Simple and easy connection
Has a locking ring and soft seal
Large free flow area
Aluminum couplings are lighter in weight than stainless steel
Suitable for water, fluids, hydrocarbons, chemicals, and dry loose materials
| Product Name: | Guillemin Camlock Coupling |
| Sizes: | 1” – 4” (DN25-DN100) |
| MOQ: | 50 pcs |
| Certificates: | CE, ISO9001:2015 |
| Standard: | EN14420-8 /NF E29572 |
| Material: | Stainless steel 316/ 304, Aluminum, PP |
| Working pressure: | 10 bar |
| Feature: | Light, flexible and interchangeable. To connect and disconnect without a tool. Economical |
| Application: | it is widely used in oil, chemical industry, fire fighting, paper manufacture, constructoin and metallurgy |
| HS code: | 7609000000 |
Our Advantage
We are experienced as we have been in this industry as a manufacturer for more than 10 years. Both of quality and service are highly guaranteed. Absolutely prompt delivery. We can produce according to specific drawings from customers. Welcome OEM/ODM project. Strict control on quality. High efficient and well trained sale service team. ISO9001, CE and SGS certified.
FAQ
1.Q: Are you a producer or trading company?
A: We are an experienced manufacturer. We own production line and kinds of machines.
2.Q: Can you make our specific logo on the part?
A: Yes please provide me your logo and we will make your logo on the part.
3.Q: Can you manufacture products according to my drawings?
A: Yes we can manufacturer according to client’s drawings if drawings or samples are available. We are experienced enough to make new tools.
4. Q: Can I get some samples?
A: We are honored to offer you our samples. Normally it is for free like 3-5 pcs. It is charged if the samples are more than 5 pcs. Clients bear the freight cost.
5. Q: How many days do you need to finish an order?
A: Normally it takes about 30 days to finish the order. It takes more time around CHINAMFG season, or if the order involves many kinds of different products.
6. Q: What kind of rubber washer do you apply to camlock couplings?
A: Normally we use NBR gasket.
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Materials Used in Manufacturing Helical Couplings
Helical couplings are typically constructed from a variety of materials, chosen based on their mechanical properties and compatibility with specific applications:
- Stainless Steel: Stainless steel is a common choice due to its corrosion resistance and high strength. It is suitable for various environments, including those with exposure to moisture or chemicals.
- Aluminum: Aluminum is lightweight and offers good corrosion resistance. It’s often used in applications where weight is a concern, such as in aerospace or robotics.
- Steel Alloys: Steel alloys provide a balance between strength and cost-effectiveness. They are used in a wide range of industrial applications.
- Brass: Brass offers good corrosion resistance and is often used in applications where electrical conductivity is required.
- Plastics and Polymers: Some helical couplings are made from plastics or polymers to reduce weight and minimize electrical conductivity. These materials are often used in precision instruments and medical devices.
The choice of material depends on factors such as the intended application, environmental conditions, load requirements, and desired level of corrosion resistance. Engineers consider these factors to ensure that the selected material aligns with the performance and longevity expectations of the helical coupling.
The Role of Helical Flexibility in Compensating for Shaft Misalignment
Helical couplings are designed with helical cuts or grooves in their construction. This helical design provides flexibility, allowing the coupling to compensate for various types of shaft misalignment:
- Angular Misalignment: The helical cuts enable the coupling to flex in response to angular misalignment between the connected shafts. As the misaligned shafts rotate, the helical flexure allows them to maintain contact and transmit torque effectively.
- Radial Misalignment: Helical couplings can also accommodate radial misalignment by flexing slightly in response to the offset between the shafts. This flexibility prevents binding or excessive forces on the shafts, reducing wear and extending the coupling’s lifespan.
- Axial Misalignment: While not all helical couplings can handle significant axial movement, some designs offer limited axial compensation. The helical flexure allows a small amount of axial displacement without compromising coupling integrity.
Overall, the helical flexibility of these couplings allows them to maintain constant contact and torque transmission even when shafts are not perfectly aligned. This feature enhances the coupling’s reliability, reduces stress on the connected components, and contributes to the longevity of both the coupling and the machinery.
Elaboration on Torsional Stiffness in Relation to Helical Couplings and Its Significance
Torsional stiffness refers to the resistance of a helical coupling to twisting or rotational deformation under a certain amount of torque. It is a crucial mechanical property that impacts the performance of helical couplings:
- Response to Torque: A coupling with higher torsional stiffness can transmit torque more efficiently and accurately, resulting in better power transmission.
- Reduced Torsional Deflection: High torsional stiffness minimizes torsional deflection, which is the angular twist experienced by the coupling under torque. This is especially important in precision applications where accurate angular positioning is required.
- Minimized Backlash: Torsional stiffness helps reduce backlash, which is the angular play or movement between connected shafts when the direction of torque changes.
- Dynamic Performance: Torsional stiffness contributes to the coupling’s ability to respond quickly to changes in torque, making it suitable for applications with rapidly changing loads.
- Vibration Damping: While helical couplings provide some level of flexibility to accommodate misalignment, their torsional stiffness helps dampen vibrations and resonances.
- Torsional Resonances: In applications where torsional resonances can occur, a well-matched torsional stiffness can help avoid critical speeds and potential mechanical failures.
When selecting a helical coupling, considering its torsional stiffness in relation to the application’s torque requirements and performance demands is essential to ensure optimal functionality and durability.
editor by CX 2024-04-03