hydraulic rod seal
Hallite 16 Rod SealTags: hydraulic rod seal , hallite 16
Used in tandem, the Hallite 16 rod seal provides the designer with a compact low friction seal for light to medium duty hydraulic cylinders.
It has a special filled PTFE ring with a pre-loaded lip energised by an O ring. The lip is designed to have a contact area with the rod adequate to retain the media at low pressure. As high pressure acts on the O ring it compresses the lip against the rod increasing the contact area and the effectiveness of the seal. The special PTFE ring has the low frictional properties normally associated with this material but is strengthened by additives to reduce creep. It has a low breakout friction so stick-slip is eliminated. Standard seals are supplied with a nitrile O ring but other materials can be provided. For the best results it is recommended two seals are fitted. The PTFE ring should always be mounted with the sealing lip on the pressure side. Sizes above 30mm are easily installed by deforming the PTFE ring into a kidney shape, sizes under 30mm are best installed using a tool, details of which can be provided. A number of material options can be provided to extend operating conditions. Please ensure that the correct part number is specified for the material option as indicated.
NB: Part numbers suffixed by “‡” indicate housing sizes to meet ISO7425-2.
Hallite 11 Vee Pack Rod SealTags: vee pack , hydraulic rod seal , hallite 11
The Hallite 11 is a vee pack rod seal for medium duty applications offering excellent performance and long life even under difficult operating conditions such as pressure surges, vibration and some misalignment. The seal consists of a male and female adaptor and 5 vee rings. The male adaptor is usually manufactured from polyacetal but some of the larger sizes use rubberised fabric. It has grooves across one face to ensure equal pressure to the sealing edges of the vee ring.
All sizes have three rings manufactured from rubberised fabric because this has strength and durability and permits an oil film to lubricate the other parts of the seal. Two rubber vee rings are supplied between the rubberised fabric vee rings (up to and including 140mm diameter) to aid low pressure sealing.
The female adapter uses a hard rubberised fabric to support the vee rings and protect them from extrusion damage. At high pressure the lips of the adaptor acts as a secondary seal.
The proportions of the range have been determined to give a satisfactory performance when used with the recommended operating conditions.
Hallite 13 Vee Pack Rod Seal for heavy duty applicationsTags: vee pack , hydraulic rod seal , hallite 13
The Hallite 13 is a Vee pack rod seal for heavy duty applications offering excellent performance and long life even under difficult operating conditions such as pressure surges, vibration and some misalignment. The seal assembly consists of a male and female adaptor and 5 vee rings.
The male adaptor is usually manufactured form polyacetal but some of the larger sizes use rubberised fabric. It has grooves across one face to ensure equal pressure to the sealing edges of the vee ring.
All sizes have vee rings manufactured from rubberised fabric because this has strength and durability and permits an oil film to lubricate the other parts of the seal. Some sizes are supplied with rubber vee rings between the rubberised fabric vee rings.
The female adaptor uses a hard rubberised fabric to support the vee rings and protect them from extrusion damage. At high pressure the lips of the adaptor act as a secondary seal.
Hallite 653 ROD BUFFER SEALTags: hydraulic rod seal , hallite 653
The Hallite 653 single-acting rod buffer seal is designed to be used in conjunction with a high-performance rod seal, such as the Hallite 605 and 621, to protect the primary seal from shock pressure loading and high frequency pressure spikes in the hydraulic system. The design allows oil to pass through to the rod seal while holding back pressure spikes. The Hallite 653 is a patented product (European patent no. 0427554BI; U.S.A. patent no. 5088747) that also allows pressure to pass back into the system preventing a pressure trap between the rod seal and the buffer seal. The Hallite 653 is an excellent pressure buffer option in heavy-duty applications and offers extended sealing system life and performance.
Hallite 610 ROD SEAL Twin Lip PolyurethaneTags: hydraulic rod seal , hallite 610
Hallite 610 ROD SEAL Twin Lip Polyurethane
Hallite 621 ROD SEALTags: hydraulic rod seal , hallite 621
The Hallite 621 is a top-of-the-range twin lip rod seal designed to provide a dry sealing solution in heavy-duty applications.
The secondary sealing lip located behind the primary sealing lip improves stability of the seal in the gland. The unique profile of the NBR energiser ensures the precision trimmed primary sealing lips maintain contact under low or no pressure situations while ensuring proper sealing at higher pressures. This unique profile is also used in the Hallite 622 twin lip rod seal. The Hallite 621 also incorporates an acetal anti-extrusion ring to withstand side loads and extreme pressure peaks even with the extrusion gaps, which are the result of using remote plastic bearing strips like the Hallite 506 or 708.
The Hallite 621’s seal shell is molded in Hythane® 181, Hallite’s high-performance polyurethane, for easy installation and excellent low temperature performance.
Hallite 616 ROD SEALTags: hydraulic rod seal , hallite 616
Hallite’s 616 is a compact, asymmetric twin lip rod seal offering excellent dry rod sealing for light and medium-duty applications where space and friction are at a premium. The seal is manufactured in Hythane® 181, Hallite’s high-performance polyurethane, for easy installation and excellent low temperature performance.
The Hallite 616 design incorporates the sealing efficiency of the Hallite 605 rod seal with the compact grooves used by PTFE rod seals.
Hallite recommends using our 616 rod seal as either a single seal or in combination with the Hallite R16 PTFE rod seal. The combination is recommended for use in applications where pressure peaks may occur, such as cylinders with cushioning.
The Hallite R16 PTFE rod seal is fitted into the groove on the pressure side of the gland and the Hallite 616 is used as the secondary seal to ensure minimal leakage. Consult your local Hallite office when considering this arrangement.
Hydraulic Rod Sealing Elements / K34Categories: Hydraulic Seal , Hydraulic Rod Sealing ElementsTags: k34 , hydraulic rod seal
K34 is a three piece single acting sealing set which consists of one reinforced cotton fabric or thermoplastic elastomer back-up ring , one specially designed multiple lipped elastomeric nitrile rubber sealing element and one thermoplastic anti-extrusion ring.
Hydraulic Piston - Rod Seal K36Categories: SEAL , Piston - Rod Sealing Elements , Hydraulic Rod Sealing Elements , Hydraulic Sealing ElementsTags: k36 , hydraulic rod seal
K36 is a single acting piston - rod seal which consists of reinforced cotton fabric and nitrile rubber vulcanized together forming an integral sealing element.
Hydraulic Rod Sealing Elements / K35Tags: kastas seal , k35 , hydraulic rod seal
K35 is a two piece single acting rod seal which consists of one special mixture PTFE profile ring and an o-ring as energizing element.
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