Product Description

Product Description

 

GREAT WALL Stainless Steel Straub Coupling with Copper Anchoring Teeth is high performance coupling suitable for varied pipe systems. 
Our Coupling provide Axial Restraint for Pipe Connection . 
Our straub couplings used to join Metal Pipe to Metal Pipe or Metal Pipe to Plastic Pipe or Plastic Pipe to Plastic Pipe .
They are mainly used for building construction or civil engineering, power plants and etc .
This pipe joining coupling absorbs unexpected field stress and applies perfect for seismic retrofits 
All of our Coupling designated with GRIP have axial restraint .
In order to able to absorb the axial forces arising from the internal pressure, 
anchoring teeth engage in the relevant pipe materials and provide a mechanical frictional connection.
If the axial tensile load on the pipe increases due to increasing internal pressure, 
the teeth engage deeper inot the pipe surface .
 These flexible and lightweight Couplings come fully assembled and can be installed without using any special tools .

1. Briefs : 

*  Mainly used for varied pipe connection
*  Specific designed for plastic pipe such as PE, PVC, PPR, HDPE pipe 
*  Suit for water, gas, industry pipeline 

2. Features :

*   used for connection of 2 plastic pipe or the connection between plastic pipe and metalic pipe
*   also used for the leaking pipe repair 
*   allow angular deflection and provide restraint 
*   anticorrosive
*    easy installation and disassembly 

3.  Dimension Sheet : 
 

S/N	Pipe OD	O. D Range	Pressure	Coupling Length	Screw Torque
	mm	mm	bar	mm	Nm
1	63	21-23	20	75	25
2	75	26-28	20	105	30
3	90	33-35	20	105	40
4	110	42-44	20	120	40
5	125	47-49	20	120	50
6	140	56-58	20	120	50
7	160	59-62	20	120	60
8	180	62-64	16	152	60
9	200	75-78	16	152	60
10	225	79-81	16	152	60
11	250	88-92	16	152	60
12	280	106-110	16	152	60
13	315	112-116	16	152	60
14	355	116-119	16	152	60
15	400	123-126	12	152	60
16	450	131-134	12	152	60
17	500	137-143	12	152	70
18	560	157-161	10	152	70
19	630	163-166	10	152	70
20	800	166-170	10	152	80

Note: we accept your specific dimensions which are not included in the above list .

Industry Standards and Guidelines for Tooth Couplings

There are industry standards and guidelines that govern the design and use of tooth couplings. Some of these include:

• AGMA 9002-A94: This standard provides information on the selection and application of flexible couplings, including tooth couplings.
• ISO 14691: This international standard specifies methods for calculating the load capacity of tooth couplings.
• DIN 740: This German standard provides information on dimensions and requirements for tooth couplings.
• API 671: This American Petroleum Institute (API) standard specifies requirements for special purpose couplings, including tooth couplings, for use in the petroleum and natural gas industries.

These standards provide guidelines for the design, selection, installation, and maintenance of tooth couplings to ensure safe and reliable operation. Engineers and designers often refer to these standards to ensure that tooth couplings are used appropriately in various applications.

Influence of Teeth Profiles and Spacing on Tooth Coupling Performance

The design of teeth profiles and spacing in tooth couplings significantly impacts their performance in various ways:

1. Torque Transmission: The shape of teeth profiles determines how efficiently torque is transmitted between the two shafts. Properly designed profiles maximize the surface contact area, enhancing torque transmission capabilities.

2. Load Distribution: The teeth profiles and spacing affect how loads are distributed across the coupling. Even distribution helps prevent localized stress concentrations and ensures uniform wear and longevity.

3. Misalignment Compensation: Tooth couplings with specific teeth profiles and spacing can better accommodate angular, radial, and axial misalignments between shafts. This reduces the risk of excessive wear and prolongs coupling life.

4. Backlash and Precision: The teeth spacing impacts the level of backlash, or play, between the teeth during rotation. Smaller teeth spacing reduces backlash, leading to more precise and accurate motion transmission.

5. Noise and Vibration: Well-designed teeth profiles and spacing can minimize noise and vibration during operation by promoting smoother engagement and disengagement of teeth.

6. Fatigue Resistance: Proper teeth profiles and spacing help distribute stresses evenly, enhancing the coupling’s fatigue resistance against cyclic loads.

7. Material Selection: Teeth profiles and spacing also influence the choice of materials for the coupling. Certain profiles may require specific materials to ensure durability and optimal performance.

8. Efficiency: Optimized teeth profiles and spacing reduce friction and wear, resulting in higher coupling efficiency and less energy loss.

9. Customization: The flexibility to customize teeth profiles and spacing allows engineers to tailor the coupling’s performance to the specific application requirements.

Overall, the design of teeth profiles and spacing is a critical factor in determining the overall efficiency, durability, precision, and performance of tooth couplings in various mechanical systems.

Role of Tooth Couplings in Mechanical Systems

A tooth coupling is a type of mechanical coupling that connects two shafts to transmit torque while allowing for angular misalignment and axial movement between them. It consists of two hubs with external teeth that mesh together, engaging the teeth to transfer torque from one shaft to another. Tooth couplings are commonly used in various mechanical systems to provide a reliable and efficient means of transmitting power and motion.

editor by CX 2023-09-13