Product Description

Product Description


API adaptor coupler is the best design for API bottom adaptor to ensure the safety and quick loading and unloading. It is designed with an interior ‘lip’ that makes connection easier. Mates with standard 4″ API RP-1004 tank truck adaptors.

Benefit and Features
*Hardening Treatment:The whole valve body is passed a special hardening process to improve its service life.
* Reasonable Design:The oblique angle design is convenient for gravity discharging and efficiently protect the discharging hoses.
*Standardized Size:Interface dimension is designed according to the API RP1004 standard, docking with the standard API connector.
*Light Weight:The main body is made of aluminum alloy,it is more light and sturdy.
*Aluminum alloy die-cast structure, anodized treatment. 
*Cam locking operation, installed by press. 
*22.5 angle downward reduce oil retention.
*Exclusively designed handle towards locking makes easier connection and more reliable sealing.
*Cam and free-floating eliminates friction and bending, easier to connect without grease.
*Easy to check the flow through the lamellar sight glass.
*Used for many sections tankers, separate loading and unloading for different fuel.

Detailed Photos

Usage Scenario

Product Parameters

Product Name  API Camlock Reducing Coupling
Material body aluminium alloy
handle Brass
Technics: Casting
Nominal Diameter 4″- 2.5″/ 4″-3″/ 4″-4″
Pressure: 0.6Mpa
Tempreture: -150°F to +250°F
Medium: gasoline,kerosene,diesel,water,etc


Packaging & Shipping

Packaging detailed:1.Carton packing
                                  2. wooden packing
                                  3. as customer ‘s requirement
Delievey Detailed: 20-35days after receiving deposit,or depends on the order quantity


Company Profile

JiaSheng Petroleum Tech Co., Ltd. located in HangZhou, ZheJiang province, Our company is a specialized manufacturer integrating design ,production and sale into an organic whole. Our company produces and sales various tanker parts, oilcan parts, watering cart parts,aluminium and stainless steel quick coupling, double-way and treble-way valves, medium and low pressure petrochemical valves,European standard gas recovery tanker parts, gas station recovery products. Our products are widely supplied for industries like petroleum company, troops, oil stocks, tank truck, watering cart and gas station.
Our company has engineering experiences for years, we are also specialized in the installment of gas station wire frame, oil tank, asphalt tank, wine storage tank, pipeline and gas station construction, once and twice gas station recovery redevelopment, European standard tank truck refit.
Our company provides well-equipped products, advanced technique, strong technical force, and we can undertake the manufacture of other special parts.


Q1: Are you a factory?
A:We are 1 of the leading China factory professional manufacture of fuel tanker parts, tank truck parts,fuel nozzle, fuel dispenser and fuel station parts.fuel pipe ect.Which covers10,000me and with independent CZPT ability, and we can offer OEM and ODM service.
Q2: What are the application fields of your products?
A: mainly products including fuel tanker parts, tank truck parts,fuel dispenser and fuel station parts etc.
Q3: What is your terms of packing?
A: We pack our goods in standard export carton box, other packing type can do as required.
Q4: How about your delivery time?
A: 5-7 days for samples; 20-35 days for batch goods after received payment.
Q5: Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
Q6: What about the shipping package?
A: Package will use standard export carton, can do pallets as customized.
Q7: What is your sample policy?
A: We can supply the sample, but the customers have to pay the sample and freight.
Q8: How do you make our business long-term and good relationship?
A: We keep good quality and competitive price to ensure our customers benefit . We respect every customer and we sincerely do business with everyone.


Shipping Cost:

Estimated freight per unit.

To be negotiated
After-sales Service: 1
Warranty: 1 Year
Condition: New
US$ 90/Piece
1 Piece(Min.Order)


Order Sample

as customer requirement


Customized Request


Functions and Modifications of Couplings

A coupling is a mechanical device that connects two shafts and transmits power. Its main purpose is to join two rotating pieces of equipment together, and it can also be used to allow some end movement or misalignment. There are many different types of couplings, each serving a specific purpose.


Functions of coupling are useful tools to study the dynamical interaction of systems. These functions have a wide range of applications, ranging from electrochemical processes to climate processes. The research being conducted on these functions is highly interdisciplinary, and experts from different fields are contributing to this issue. As such, this issue will be of interest to scientists and engineers in many fields, including electrical engineering, physics, and mathematics.
To ensure the proper coupling of data, coupling software must perform many essential functions. These include time interpolation and timing, and data exchange between the appropriate nodes. It should also guarantee that the time step of each model is divisible by the data exchange interval. This will ensure that the data exchange occurs at the proper times.
In addition to transferring power, couplings are also used in machinery. In general, couplings are used to join two rotating pieces. However, they can also have other functions, including compensating for misalignment, dampening axial motion, and absorbing shock. These functions determine the coupling type required.
The coupling strength can also be varied. For example, the strength of the coupling can change from negative to positive. This can affect the mode splitting width. Additionally, coupling strength is affected by fabrication imperfections. The strength of coupling can be controlled with laser non-thermal oxidation and water micro-infiltration, but these methods have limitations and are not reversible. Thus, the precise control of coupling strength remains a major challenge.


Couplings transmit power from a driver to the driven piece of equipment. The driver can be an electric motor, steam turbine, gearbox, fan, or pump. A coupling is often the weak link in a pump assembly, but replacing it is less expensive than replacing a sheared shaft.
Coupling functions have wide applications, including biomedical and electrical engineering. In this book, we review some of the most important developments and applications of coupling functions in these fields. We also discuss the future of the field and the implications of these discoveries. This is a comprehensive review of recent advances in coupling functions, and will help guide future research.
Adaptable couplings are another type of coupling. They are made up of a male and female spline in a polymeric material. They can be mounted using traditional keys, keyways, or taper bushings. For applications that require reversal, however, keyless couplings are preferable. Consider your process speed, maximum load capacity, and torque when choosing an adaptable coupling.
Coupling reactions are also used to make pharmaceutical products. These chemical reactions usually involve the joining of two chemical species. In most cases, a metal catalyst is used. The Ullmann reaction, for instance, is an important example of a hetero-coupling reaction. This reaction involves an organic halide with an organometallic compound. The result is a compound with the general formula R-M-R. Another important coupling reaction involves the Suzuki coupling, which unites two chemical species.
In engineering, couplings are mechanical devices that connect two shafts. Couplings are important because they enable the power to be transmitted from one end to the other without allowing a shaft to separate during operation. They also reduce maintenance time. Proper selection, installation, and maintenance, will reduce the amount of time needed to repair a coupling.


Maintenance of couplings is an important part of the lifecycle of your equipment. It’s important to ensure proper alignment and lubrication to keep them running smoothly. Inspecting your equipment for signs of wear can help you identify problems before they cause downtime. For instance, improper alignment can lead to uneven wear of the coupling’s hubs and grids. It can also cause the coupling to bind when you rotate the shaft manually. Proper maintenance will extend the life of your coupling.
Couplings should be inspected frequently and thoroughly. Inspections should go beyond alignment checks to identify problems and recommend appropriate repairs or replacements. Proper lubrication is important to protect the coupling from damage and can be easily identified using thermography or vibration analysis. In addition to lubrication, a coupling that lacks lubrication may require gaskets or sealing rings.
Proper maintenance of couplings will extend the life of the coupling by minimizing the likelihood of breakdowns. Proper maintenance will help you save money and time on repairs. A well-maintained coupling can be a valuable asset for your equipment and can increase productivity. By following the recommendations provided by your manufacturer, you can make sure your equipment is operating at peak performance.
Proper alignment and maintenance are critical for flexible couplings. Proper coupling alignment will maximize the life of your equipment. If you have a poorly aligned coupling, it may cause other components to fail. In some cases, this could result in costly downtime and increased costs for the company.
Proper maintenance of couplings should be done regularly to minimize costs and prevent downtime. Performing periodic inspections and lubrication will help you keep your equipment in top working order. In addition to the alignment and lubrication, you should also inspect the inside components for wear and alignment issues. If your coupling’s lubrication is not sufficient, it may lead to hardening and cracking. In addition, it’s possible to develop leaks that could cause damage.


The aim of this paper is to investigate the effects of coupling modifications. It shows that such modifications can adversely affect the performance of the coupling mechanism. Moreover, the modifications can be predicted using chemical physics methods. The results presented here are not exhaustive and further research is needed to understand the effects of such coupling modifications.
The modifications to coupling involve nonlinear structural modifications. Four examples of such modifications are presented. Each is illustrated with example applications. Then, the results are verified through experimental and simulated case studies. The proposed methods are applicable to large and complex structures. They are applicable to a variety of engineering systems, including nonlinear systems.
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editor by CX 2023-07-07