China manufacturer Cast Iron Pipe Fitting Coupling BS70 ASTM888 disc coupling

Product Description

Quick Details
Place of Origin: ZheJiang China (Mainland)
Brand Name: DINGGIN
Model Number: 1.5”-12”
Material: Cast Iron, grey cast iron
Standard: ASTM A888, ASTM A888, CISPI 301
Production Capacity: 1500 tons/month
Lead time: 10-15 days.
Hardness: Within 260HBW
Pipe Wall Thickness: Range from 3.3-7.44mm
Material: Cast Iron, grey cast iron
Application: For water drainage
Pull strength: Above 350MPA
Paint: Black biHangZhou
Package: Wooden pallet and steel band
Approval: UPC approval

Packaging & Delivery
Packaging Detail: Wooden pallet and steel bands
Delivery Detail: 10-15 days, also depend on your quantity.

A. Our products are made strictly according to EN877 or ASTM A888 standard.
B. Size: Range from 1.5” to 12”, with 3.048m/pc.
C. Painting: Inside epoxy paint in color yellow with thickness above 120 micron, outside paint in color red with thickness above 40 micron. If you have special requirement, please contact with us, as we could also make the painting according to your requirement.
D. Length/pc: 3m
E. Delivery time: 10-15 days, depend on your quantity.
F. Application: Used for waste water/rain water/ventilation.
G. Advantage: Avoid pollution, noise resistant.
H. Payment term: T/T, L/C, or D/P.
I. Minimum order: 1X40’GP.
J. Production capacity: 1500 tons/ month
K. We could do the third party inspection at famous organizations such as SGS, BV, etc.
L. By now we have shipped our cast iron pipes to many countries such as Norway, New Zealand, the Mid East, Singapore, Hong Kong, etc.

All of our products will be strictly tested before shipment. A copy of original production records and inspection reports will be offered for each shipment with our CZPT and stamp.
Pictures of loading will be sent to the customer after shipment effect.
We will follow-up the delivery progress after shipment effect and update to the customer on weekly basis.
Sizes1.5″, 2″, 3″, 4″, 5″, 6″, 8″, 10″, 12″, 15″
StandardASTM A888
Materialgray cast iron pipe
Applications: Construction drainage, pollution discharge
FeaturesFlat and straight; High strength and density without defect; Easy to install and maintain; Long lifetime, fireproof and low noise rate.
Production capability We could produce 60×40’GP per month.


Nor. Tol. Nor. Tol. Nor. Min.
0156 1.5 38.10 ±2.29 48.26 ±1.52 4.06 3.3 3048 13 60
0158 2 49.80 ±2.29 59.69 ±2.29 4.06 3.3 3048 16 64
0160 3 75.20 ±2.29 85.09 ±2.29 4.06 3.3 3048 23 48
0162 4 100.08 ±2.29 111.25 +2.29
4.83 3.81 3048 34 30
0164 5 125.48 ±2.29 134.62 +2.29
4.83 3.81 3048 42 21
0168 6 150.88 ±2.29 160.02 +2.29
4.83 3.81 3048 49 18
0170 8 201.68 ±3.3 212.85 +3.3
5.84 4.32 3048 80 10
0171 10 254.00 ±3.3 268.22 ±2.29 7.11 5.59 3048 127 8
0172 12 303.28 ±3.3 317.5 ±3.3 7.11 5.59 3048 140 6
0173 15 383.79 ±3.3 402.08 ±3.3 9.14 7.62 3048 240 3


Sizes 1.5″, 2″, 3″, 4″, 5″, 6″, 8″, 10″, 12″, 15″
Standard ASTM A888
Approval UPC
Material gray cast iron pipe
Applications: construction drainage, pollution discharge
Features Flat and straight; High strength and density without defect; Easy to install and maintain; Long lifetime, fireproof and low noise rate.
Production capability  We could produce 60×40’GP per month.


Miss Ana

After-sales Service: Online Support Service 24 Hours
Warranty: 10 Year
Type: Cast Iron Pipes
Usage: Water Supply
Joint Type: Rigid Joint
Section Shape: Round


Customized Request


Programming With Couplings

A coupling is a mechanical device that connects two shafts together and transmits power. Its purpose is to join rotating equipment and allows some degree of end-movement or misalignment. There are many different types of couplings. It’s important to choose the right one for your application.

Mechanical connection between two shafts

There are many ways to achieve mechanical connection between two shafts, including the use of a coupling. One common type is the beam coupling, which is also known as a helical coupling. It is used for transmission of torque between two shafts. This type of connection accommodates axial, parallel and angular misalignments.
The hubs and shafts of a worm gear are connected together by a coupling. This mechanical connection allows one shaft to turn another without causing a mechanical failure. This type of coupling is made from sliding or rubbing parts to transfer torque. However, the coupling is not designed to withstand jerks, so it isn’t suitable for high-speed applications.
The use of a coupling is common in machinery and equipment. It helps transmit power from one drive shaft to the other, while adding mechanical flexibility. It is also useful for reducing the impact and vibration caused by misalignment. It also protects the drive shaft components from wear and tear.
A double-hook coupling can be used to provide a uniform angular velocity at the driven shaft. Another example is a double-jointed coupling. A double-jointed coupling can be used to connect shafts that are not directly intersecting. The double-jointed yoke can be used for the same purpose.
A shaft coupling is a device that maintains a strong mechanical connection between two shafts. It transfers motion from one shaft to another, at all loads and misalignments. Unlike a conventional linkage, a shaft coupling isn’t designed to allow relative motion between the two shafts. Couplings often serve several purposes in a machine, but their primary use is torque and power transmission.

Functions that control the flow of another function

One of the simplest programming constructs is a function that controls the flow of another function. A function can take an argument and return a different value, but it must be ready to return before it can pass that value to another function. To do this, you can use the goto statement and the if statement. Another way to control flow is to use a conditional statement.

Criteria for selecting a coupling

There are several important factors to consider when choosing the right coupling. One of the most important factors is coupling stiffness, which depends on the material used and the shape. The stiffness of a coupling determines its ability to resist elastic deformation. A stiff coupling is desirable for certain types of applications, but it’s undesirable for others. Stiffness can reduce the performance of a system if there’s too much inertia. To avoid this, ensure that the coupling you choose is within the recommended limits.
The size of a coupling is also important. Different coupling types can accommodate different shaft sizes and shapes. Some couplings have special features, such as braking and shear pin protection. When choosing a coupling, you should also consider the type of driven equipment. If you need to connect a high-torque motor, for example, you’ll want to choose a gear coupling. Likewise, a high-speed machine may require a disc coupling.
Another factor to consider when selecting a coupling is the torque rating. Despite its importance, it’s often underestimated. The torque rating is defined as the torque of the coupling divided by its OD. In some cases, torque may fluctuate during a cycle, requiring a coupling with a higher torque rating.
Torsionally flexible couplings are also important to consider. Their design should be able to withstand the torque required during operation, as well as the required speed. The coupling should also have a high degree of torsional stiffness, as well as damping. Furthermore, a damping coupling can reduce the energy wasted through vibration.
The sizing of a coupling is also determined by the torque. Many engineers use torque to select the correct coupling size, but they also take into consideration torsional flexibility and torsional stiffness. For example, a shaft may be able to handle large torque without damaging the coupling, while a disk may be unable to handle large amounts of torque.
Besides torque, another important consideration in coupling selection is the cost. While a coupling may be cheaper, it may be less reliable or easier to maintain. Couplings that are difficult to service may not last as long. They may also require frequent maintenance. If that’s the case, consider purchasing a coupling with a low service factor.
There are many different types of couplings. Some require additional lubrication throughout their lifetime, while others are 100% lubrication-free. An example of a 100% lubrication-free coupling is the RBI flexible coupling from CZPT. This type of coupling can significantly reduce your total cost of ownership.
In addition to the above-mentioned benefits, elastomeric couplings are low-cost and need little maintenance. While they are often cheaper than metallic couplings, they also have excellent shock absorption and vibration dampening properties. However, they are susceptible to high temperatures. Also, they are difficult to balance as an assembly, and have limited overload torque capacity.
China manufacturer Cast Iron Pipe Fitting Coupling BS70 ASTM888   disc couplingChina manufacturer Cast Iron Pipe Fitting Coupling BS70 ASTM888   disc coupling
editor by CX 2023-08-03