Cartridge Systems A simple cost effective way of securing tubes within your product
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Cartridge Systems A simple cost effective way of securing tubes within your product

The John Guest Group has a long established reputation as a world leading manufacturer of push-fit fittings, tube and other fluid control products. A reputation built on producing consistently high quality products with an ongoing commitment to value engineering and product development. Quality Manufacture A commitment to quality is at the heart of the John Guest philosophy. The strictest control is maintained by virtue of the fact that design and manufacture is carried out in modern purpose built manufacturing centres in West London and at Maidenhead in Berkshire. Maintaining control over...

Cartridge Systems John Guest Cartridge Systems are an easy and cost effective way of incorporating a push-fit connection into a wide range of original equipment. Neat and compact, push in connections avoid the need for threaded ports, offer improved product appearance, easy tube connection and a reduced envelope size. Cartridge Systems are easy to assemble, need only a low insertion level but offer a high burst pressure. They are offered with plastic, brass or stainless steel body for use with a wide variety of soft metal or plastic housing materials. The systems are based on technology...

Plastic Half Cartridges • For Pneumatics and Food Grade Applications • Inch and Metric Sizes • For a wide range of plastic and soft metal housing materials • Low assembly effort - high retention The John Guest Plastic Half Cartridge provides a quick, efficient and easy way of securing a Speedfit push-in connection into a wide variety of original equipment. As the cartridge requires low insertion loads it is suitable for many different housing materials. The Half Cartridge is made up of three components; a collet or gripper, an ‘O’ ring of food grade material, and a plastic body with...

PLASTIC HALF CARTRIDGES - METRIC SIZE PLASTIC HALF CARTRIDGES - IMPERIAL SIZE Grey Acetal Collet, Grey Acetal Body, Nitrile ‘O’ Ring. Black Acetal Collet, Black Acetal Body, Nitrile ‘O’ Ring. 1/4”, 5/16” and 3/8” Plastic Half Cartridges are available with grey or white body with red, white or blue collet. Minimum 5000 lots. Black Acetal Collet, Black Acetal Body, EPDM ‘O’ Ring. These variations are also available with 2 ‘O’ rings. Grey Acetal Collet, Grey Acetal Body, EPDM ‘O’ Ring. White Acetal Collet, White Acetal Body, EPDM ‘O’ Ring. 1/4” size also available with red, white or blue...

PLASTIC HALF CARTRIDGE KIT - METRIC SIZE Black Acetal Collet, Black Acetal Body. PLASTIC HALF CARTRIDGE KIT - IMPERIAL SIZE Grey Acetal Collet, Grey Acetal Body. 1/4" and 3/8" Plastic Half Cartridge Kits are also available with grey or white body with red, white or blue collet. Assembly Efforts and Retention Typical Assembly Efforts and Retentions, when measured in acetal housing, are shown below. The figures are guidelines to performance and will vary depending on material, temperature and manufacturing tolerance. Polyacetal housing) Polyacetal housing)

Metal Half Cartridges • For Drinks Dispense and Potable Water Applications • Inch and metric sizes • For a wide variety of metal housings • Brass or stainless steel body John Guest Half Cartridges with metal body are designed to provide a simple cost effective way of securing tubes into taps, manifolds, flow direction splitters and many other types of components, which can be produced in a wide variety of materials. When connections need to be installed into plastic products we recommend our new Plastic Half Cartridge shown on pages 03 to 04. Half Cartridges are supplied with one ‘O’ ring...

Port Measurements for Half Cartridges Imperial Tube OD All dimensions in inches * - Metal Half Cartridges. ** - Plastic Half Cartridges. E1 and F1 relate to one ‘O’ ring. E2 and F2 relate to two ‘O’ rings. All dimensions in mm * - Metal Half Cartridges. ** - Plastic Half Cartridges. E1 and F1 relate to one ‘O’ ring. E2 and F2 relate to two ‘O’ rings. MINIATURE ONE ‘O’ RING Tube OD + Minimum wall thickness 1.0mm. All dimensions in mm

Full Cartridges John Guest Full Cartridges are designed to provide a simple cost effective and trouble free way of securing tubes into a variety of metal products. The Cartridge is supplied with the ‘O’ Ring assembled and the collet loose. They are ideal for compressed air applications. Note: For some applications additional bonding is required in the form of ‘Loctite 601’ or similar adhesive. When there is a need to install connections into plastic products we recommend our new Plastic Half Cartridge shown on pages 03 to 04 of this brochure. As John Guest Cartridges are intended for use by...

Cut the tube square and push in up to the tube stop. For metal tube, remove burrs and chamfer tube end to prevent the ‘O’ ring seal being damaged. For soft or thin walled plastic tube we recommend the use of a tube insert. The Cartridge grips before it seals. Ensure the tube is pushed up to the tube stop. The tube is secure in position. The stainless steel teeth grip the tube while the ‘O’ ring provides a permanent leak-proof seal. Pull the pipe to check it is secure. It is good practice to check the system before use. Disconnection is just as easy Ensure the system is depressurised before...

Technical Specification Working Temperatures and Pressures Tube Tolerances John Guest Cartridges and Half Cartridges are suitable for the following pressures and temperatures. Cartridges are offered for tubes with outside diameters to the following tolerances. Acetal Cartridges Those Plastic Cartridges which have the prefix PI,PM,CI,CM,PCI PCM or ECI. *Only cartridges with a Nitrile rubber ‘O’ ring should be used for air, these can be identified by part numbers with prefix PI or PM. Polypropylene Cartridges Those Plastic Cartridges which have the prefix PP. Metal Cartridges Those Metal...