What is TW coupling?

The TW coupling is a simple and reliable way to couple two elements to each other. The female connecting piece with lock, ring and handle fits the male connecting piece. Two claws ensure a solid and leak proof connection with the turning of the locking ring. Folding the handle in after tightening ensures the locking of the coupling. The European Committee for that the “three-lug TW coupling (DN 100)”applies as the standard for connections for tankers and railway carriages.

Material
Based on top quality raw materials TW couplings are supplied in brass, chromed brass or stainless steel 316.

Material seal
- Brass coupling: coupling seal: NBR, thread seal: PU
- Stainless steel coupling: coupling seal: hypalon, thread seal: PTFE

Designs
Both the female and male parts are available in DN 50, DN 80 100 with 2”, 3”and 4” BSP female thread respectively.

Application
For use with loading and unloading oils,  chemical products, etc.

Classification of Aluminum Camlock Coupling

Aluminum Camlock Coupling has type A B C D E F type DC DP type 8 models, including type A, E, F, DP four male head and type B, C, D, DC four female head.Both TAB for Yin is female head;Also for the Yang side of the TAB is the male head.Usually, one male, one female.
Type A: it is Yang side inside the wire connector, and female head fast connection, side and outside of pipe
B: it's cloudy outside the wire connector, also known as the female head outside the wire fast connection, one side is with two card male head of the groove and on the other side and inner wire pipe connection
C: is female hose connector, also called Yin side tube fittings, female head hose connection, Yin pagoda joint, is used for and hoses, hose, hose, pipe, quick joint of tubing
D: it's cloudy in the end wire fast connection, also called mother silk in the head quick release coupling, male head, side joint on one side is the internal thread interface
E: is the hose connector, Yang side tube fittings, Yang tower, while female head, take a hose;
Filament type F, is outside the Yang side of joints, the male head outside the wire fast connection, male head on one side, one side is male, F type can be combined and flange welding is used, the F type flanged joint quickly, is also very extensive use.
DC: Yin the fast plug, namely female head quickly, also called fast plug rod type, Yin dust cover.
DP model: it is Yang fast plug, also called fast plug, male head head quickly, also called Yang the dust cover

 

Source： http://www.kg-machinery.com//news/classification-of-aluminum-camlock-coupling.html

Guillemin Coupling Features

K&G is Guillemin Coupling manufacturer, we have been in the field of manufacturing Guillemin Coupling nearly 20 years, Our Guillemin Coupling do 100% testing before leaving, and has received warm welcome and good reputation among our worldwide clients.

Guillemin couplings are divided into:

Guillemin cap

reducing guillemin

guillemin hose with latch 

guillemin female without latch

Guillemin male with helico hose end

Guillemin couplings hose end

Guillemin choke-plug with chain

Guillemin female with latch

Guillemin male with latch

Guillemin Hose end with helico

Guillemin coupling features: 

1、Time-saving:When with the camlock coupling broke off and connect the oil line,the action is simple, saves time and manpower

2、 Fuel-saving: When broke off the oil line, single valve on camlock coupling can closed the oil circuit, the oil will not flow out, to avoid the loss of hydraulic fluid. 

3、Environmental: When camlock coupling broke off and connections, the oil spill will not leak and protect the environment. 

4、 Unique equipment design, easy to transport: Large equipment or need portable hydraulic tools, the use of camlock coupling spin transport destination and then assembled using.

(source:http://www.kg-machinery.com/news/guillemin-coupling-features.htm)

The characteristics of Camlock coupling

Camlocks also called cam and groove coupling, a kind of Hose coupling used to rapidly connect and disconnect fitting on piping or hose, they come in a variety of materials to be used with different liquids and a variety of sizes to accommodate hose or piping diameter.We K&G MACHINERY summarizes the characteristics of Camlock coupling are listed below.

Camlock coupling has the following characteristics:

(1) The installation saves time and effort: When Camlock coupling Series connector connect supporting facilities has the corresponding size connector matching with it, so simple installation operation, saving time and manpower.

(2) Model diversification: Camlock coupling model includes eight kinds for customers to choose; At the same time  supporting the needs of different customers different thread standard..

(3) Environmental protection: Camlock coupling can be used through the threaded connection ,supporting the use of the valve, when the quick connector broken and connection, closed by the valve regulating the oil will not spill leak and protect the environment.

(4) The device uniquely designed for easy transport: large equipment or need portable hydraulic tools, the use of quick connectors spin transport, destination and then assembled using.

(5)The economy: the above a variety of advantages over both for customers to create economic value.

(source:http://www.kg-machinery.com/news/the-characteristics-of-camlock-coupling.html)

Camlock Coupling Safety Precautions

Camlock Coupling is one of the most excellent choices for connecting and disconnecting industrial hoses and pipe fittings.
For the safety of camlock coupling, some precautions should be noticed：
Firstly, connect camlock coupling under the low pressure.
Secondly, match product to be conveyed with proper alloy couplings.
Thirdly, pressure test hose assembly, prior to application, to ensure tight and leak free assembly of hose, coupling &clamp.
Fourthly, fluidized dry products are more abrasive than liquids. In those applications, couplings should be frequently checked for excessive wear and replaced when necessary.
Fifthly, pressurized media creates hazardous conditions. Tie-off hose ends to guard against accidental separation of lines and to prevent whipping or bucking of the hose.
Last but not least, use camlock handle locking devices.

(source:http://www.kg-machinery.com/news/camlock-coupling-safety-precautions.html)

What are Hose Couplings?

Hose couplings are a connection fitting that is found on the end of a hose.  The device makes it possible to connect the hose with another hose, or with some type of machinery or appliance.  Usually constructed with brass or steel, a hose coupling may be designed in several basic patterns.  Choosing the right hose coupling normally depends on the types of hoses involved as well as their intended use.

In many cases, hose couplings are designed to create a seal that is both airtight and watertight.  This makes the devices especially helpful when the hoses are used to transport liquids or gases of some type.  Some designs use either male or female thread designs, while others are classified as sexless hose couplings.

One of the more common types of hose couplings is known as the Storz coupling.  This design requires very little effort to connect, as it requires no more than lining up the coupling with the device and locks in place with a simple quarter turn.  A Storz hose coupler is often the choice of many municipal fire departments, as they make it possible to quickly attach a fire hose to a hydrant when attempting to bring a fire under control.

A variation on the Storz coupling is known as the Nakajima.  This style of coupling also connects with a simple quarter turn.  What is different is that hose couplers of this type also come with a locking device on the exterior.  The lock can be especially helpful when connecting the hose to machinery that will move liquid or other agents through the hose at high pressures.

In Spain, the Barcelona hose coupling is common for use with fire trucks as well as connecting with local water systems when necessary.  This design also makes use of a combination of male and female threads and must be screwed into place.

French fire fighters tend to utilize a hose coupling configuration known as the Guillemen Symmetrical Clutch.  As with the Storz and Nakajima designs, this type of coupling connected with a simple quarter turn.  Two protuberances are found on the exterior of the clutch, which allows the device to adjust to the hook of each hose as the ring turns during use.

The National hose coupling, also known as an NST, is also commonly used with fire hoses.Requiring more than a simple turn and lock process, the NST requires several full turns to complete the connection.  The straightforward male and female thread combination makes it possible to quickly screw the coupling into position.  A gasket helps to seal the connection. This type of coupling works well as a nozzle holder as well as several other hose accessories.

(source:http://www.kg-machinery.com/news/what-are-hose-couplings.html)

What Is a Reducing Coupling?

Reducing couplings are pipe fittings designed to allow pipes of dissimilar diameters to be joined together. These fittings are typically used where small consumer or process feeder lines are joined into large supply circuits or where small diameter fittings are installed. Reducing couplings are available for most common pipe types, including steel, copper and PVC, and for a wide range of pipe size and configuration combinations. These fittings may be screw-on, compression, brazing or adhesive attachment types, depending on the relevant application.
Joining tubing or pipes of different diameters requires the use of a reducing coupling. These special pipe joining fittings are designed to make the coupling of a wide range of different pipe sizes easy while maintaining the integrity of the pipe circuit. Reducing couplings are typically no more than standard, two-way couplers with a stepped down profile and two dissimilar sized entries. Their designs can, however, accommodate multiple connections, elbows or bends and be formed into Y, T or cross junctions. Most pipe types, such as copper, steel or PVC, have a range of general purpose or application-specific reducer couplings available for them.
The reducing coupling used on steel pipes is generally a steel casting with standardized threads cut into either end. These couplers will normally feature a simple, stepped down profile and screw onto the two lengths of pipe in the same way a standard pipe joint does. Reducing flange joints are also available and have a section of stepped diameter pipe between the two flanges. Welded reducing coupling designs are similar to screw on examples but feature no threads.
A copper tubing reducing coupling is similar in design to its steel pipe counterpart and is typically brazed or soldered onto the two pipes. Some copper pipe reducers may be of a compression-type design, depending on the application. Much like steel flange joints, these fittings feature two differently sized screw down compression fittings joined by a length of stepped tubing. The bottleneck profile reduction common to metal fittings is also common among PVC reducing couplings. These fittings are typically attached to the two pipe ends with a PVC adhesive to ensure a good seal.
The reducing coupling can also be used to insert small diameter ancillary equipment, such as valves, flow meters and inspection or maintenance ports, into large diameter pipe circuits. This type of reducing coupler is most often used at termination points on high-pressure petrochemical industry pipe circuits. As few pipe circuits consist of one size of pipe throughout, the reducing coupling is a critical part of the layout of most pipe installations.

(source:http://www.kg-machinery.com/news/what-is-a-reducing-coupling.html)