Quick Couplings For Agriculture

Agricultural hydraulic equipment is an essential part of agricultural machinery. It is used for performing the most difficult of hydraulic tasks with ease and precision. Quick coupling is a mechanism that connects two hoses or pipes. The coupler transfers the liquid, gas, or slurry between the pipes at high pressure and it can be disassembled easily. Quick coupling eliminates leakage, spillage, and damage. Therefore, quick couplings will be used in all aspects of agriculture. In particular, hydraulic quick couplings are used to connect one end to a hydraulic pump and the other end to a hydraulic tool. People can use quick couplings to quickly change tools and service hydraulic systems without the need for tools. It helps people to improve their productivity.

ISO 5675 Push Pull Quick Couplings

ISO 5675 Quick Couplings

ISO 5675 is a standard for agricultural and forestry machinery based on ISO 7241 series A. The main purpose of the standard is to provide better performance of quick couplings in agricultural and forestry machinery. Therefore, ISO 5675 quick couplings are usually used specifically for agricultural and forestry machinery.

ISO A Quick connect coupling stainless steel

ISO 7241 Series A Quick Couplings

ISO 7241 series A quick couplings are general-purpose quick couplings that have a wide range of uses in various hydraulic equipment and tools. Compared with ISO 5675 standard quick coupling, ISO 7241 series A quick coupling is used in a wider range of scenarios. These quick couplings are often found on agricultural equipment.

ISO B Quick couplings categories

ISO 7241 Series B Quick Couplings

ISO7241 series B quick couplings for agricultural applications are more common in the North American market. We have seen many of these quick couplings on Kubota’s tractors. Compared to the ISO7241 series A quick coupling, the ISO B quick coupling is a little more solid in terms of material and therefore costs a little more for the same size. On agricultural tractors, the small size of these quick couplings such as 1/4″ and 1/2″ ISO B quick couplings are commonly used.

Flat Face Quick Couplings

ISO 16028 Flat Face Quick Couplings

More and more new agricultural machinery is using flat face quick couplings because of the no-spill and easy-care characteristics of flat face quick couplings, so more hydraulic machinery and equipment manufacturers, more often use flat face quick couplings. Because of the entry of Chinese manufacturers, not only the quality of flat face quick coupling is getting better, but also the price is getting lower. Some users have also started to replace the original universal quick couplings with flat quick couplings.

What if some older farm tractors, use quick couplings that do not meet ISO standards?

It is true that some older models of agricultural machinery and tractors use quick release couplings that do not meet ISO standards. We have custom made quick release couplings for some older tractor models to replace their broken quick release couplings. For example, John Deere, International Harvester, and Case. You can send a sample to our factory and we can customize any old model directly for you. This solves the problem of not being able to find quick release couplings for older models.

What is the difference between push-pull quick release couplings and normal ISO 5675 quick release couplings?

The sleeve of push-pull quick coupling can move in two directions. The process of connecting and disconnecting the quick coupling can be achieved by operating the sleeve in the inward and outward directions. With a normal ISO 5675 quick coupling, the sleeve needs to be pushed in one direction before the male coupler can be pushed into the female coupler during connection. When the sleeve is released, the steel balls will be locked by the sleeve to complete the connection process. Although the operation is equally simple, it is not as easy as the push-pull quick coupling, where the hose containing the female is connected by pushing in one direction and then disconnected by pulling outward together. Therefore the push-pull type is much easier to operate.

Is it possible to replace existing quick couplings with flat quick couplings on agricultural machinery?

Usually, it is possible to replace the existing quick coupling with a flat face quick coupling, which can replace the existing quick coupling in terms of flow rate and working pressure. However, when it comes to the threaded connection, especially when some quick couplings need to pass through the bulkhead, special attention should be paid to the dimensions of the flat quick coupling. You can consult us to find out if the replacement is possible.

What is the difference between a ball valve and a poppet valve?

We often come across ISO5675 quick couplings where we see ball valves and poppet valves, and generally, users will look for replacement quick couplings based on the original factory-equipped quick couplings. Sometimes some users will ask the difference between a ball valve and a poppet valve. In fact, in most parameters, there is no difference between ball valves and poppet valves. However, the ball valve does not use a seal ring to achieve the sealing effect, but the deformation between the ball and the quick coupling shell to achieve the sealing effect, so when the pressure is low, there may be some dripping phenomenon. But the ball valve also has the advantage that it will not be affected by seal damage, working temperature, etc.