martedì 15 settembre 2020

Piston seal

Piston seals maintain sealing contact between a piston and cylinder bore. The moving piston rod generates high pressure on the piston seal which increases contact forces between the seal and cylinder surface.


For this reason, the surface properties of the sealing surfaces are critical to proper seal performance. They are internal to the cylinder head and seal against the cylinder bore, preventing fluid from flowing across the cylinder head. This allows pressure build up on one side of the piston, making the cylinder extend or retract.


By combining special elastomers, metal treatment, adhesive solutions, and manufacturing processes, these seals demonstrate superior performance throughout the life of the transmission.

Three compact and small seal edges ensure perfect fluid control and concentrate load against the dynamic surface. TDE seal is designed for double acting applications.


The central part made of reinforced Rubbercloth resists to high abrasion and wear loads. Parker piston seals for hydraulic and pneumatic cylinders and actuators are designed to separate applied pressure between the piston and the rod side during the stroke movement.


They are available as single-acting and double acting seals in a wide range of compound and profile configurations to meet diverse applications: high and low temperatures and pressures, a wide variety of media, harsh. Buffering seals protect hydraulic cylinders from pressure spikes and shock in high-pressure hydraulic applications.


A1piston seal is recommend to be used with min one ALP guidening element combination such as A25 A25 A25 A25 depending on the working conditions. A1single acting seals to be used for low to medium duty hydraulic cylinders, commonly used for mobile hydraulics and presses.

They have the function of primary sealing, preventing the liquid from flowing through the piston, and allow the accumulation of pressure on one side of the piston. Seal at the piston for a cylinder. With single-acting cylinders ( plunger ), the piston is only subjected to pressure on one side so only needs sealing in one direction in most cases.


Model:CAP External Diameter:6. Internal Diameter:1. PISTON SEALS Read more. Insensitive to extreme pressure peaks. For high-pressure applications. Robust seal profile for harshest operating conditions. Most owners create scratches and gouges on the piston securement dovetail-button. This creates the piston to now be bigger and the seal fits tighter or bows out. Turning the seal to make it fit flush is easier than removing it. Next time is the time to file or deburr the piston dovetail.


Il vostro specialista nella progettazione, produzione e distribuzione di sistemi di tenuta per cilindri oleodinamici e pneumatici. Siamo leader mondiale nella progettazione, produzione e distributore di guarnizioni idrauliche e pneumatiche, così come di raschiatori, guide, anelli antiestrusione e altri prodotti personalizzati in materiali ad alte prestazioni.


Chesterton offers numerous piston seal profiles to choose from, including u-cup, stacked and compression designs, depending upon the application requirements and operating conditions. The proper seal profile used in combination with a high performance material creates a highly-effective sealing solution.

Modern pneumatic piston seals such as those from Freudenberg Sealing Technologies can be precisely adapted to the application in question by selecting the appropriate material. In most cases, polyurethane and PTFE materials are used which – in conjunction with the geometries from Freudenberg Sealing Technologies that have been proven in practice millions of times over – always provide the.


Axial clamp seals. Sealing and spacing washers. General technical information. Seals for heavy industrial applications.


Two-piece Merkel seal set for sealing pistons consisting of one PTFE profile ring and one elastomer profile ring as a pre-load component. The seal set is designed for heavy duty hydraulic applications.


PRODUCT ADVANTAGES. The Merkel Omegat OMK-S can be used where a piston has pressure on both sides and is designed especially for large diameters.

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