Hydraulic Seal

Durable PTFE Piston Seals for Heavy-Duty Excavator Systems

SPG is standard compact double-acting seal for wide application. It consists of a bronze-filled PTFE face ring preloaded by a square-section NBR ring. The cover ring is precision machined from a compression molded blank. Compression molding of this material provides consistently superior physical properties compared to automated molded products. The machined face ring has a chamfer for easy installation and the surface finish is not affected by the "orange peel" effect of the molded product Design Description: The sliding material used is filled with polytetrafluoroethylene (PTFE). This seal exhibits very low friction resistance, eliminates crawling, and ensures high wear resistance. Due to its bi-directional sealing capability, a single seal eliminates the need for installation space. The elastomeric element is designed in a square shape, which enhances the stability of the seal. This is a standard combination seal widely used in various applications, particularly on pistons. Technical Specification: Operating Pressure: 0-35 MPa Speed: 1.5 m/s Temperature: -30°C to +200°C (depending on the elastomeric material) Code Fucntion Limited Condition Pressure (MPa) Speed (m/s) Temp. (ºC) SPGO Piston Seals (Double Acting) 40 5 -45ºC +200ºC SPG Piston Seals (Double Acting) 35 1.5 -30ºC +200ºC SPGW Piston Seals (Double Acting) 50 1.5 -45ºC +200ºC GSD Piston Seals (Single Acting) 40 5 -30ºC +200ºC DAQ Piston Seals (Double Acting) 40 2 -30ºC +200ºC AQ5 Piston Seals (Double Acting) 40 2 -30ºC +200ºC DAS Piston Seals (Double Acting) 40 0.5 -30ºC +100ºC PG Piston Seals (Double Acting) 35 0.5 -30ºC +100ºC MPA Rod Seals (Single Acting) 40 0.5 -45ºC +120ºC MPB Rod Seals (Single Acting) 40 0.5 -45ºC +120ºC MPR Rod Seals (Single Acting) 40 0.5 -45ºC +120ºC MPS Rod Seals (Single Acting) 40 0.5 -45ºC +120ºC HBY Rod Seals (Single Acting) 40 0.5 -30ºC +110ºC HBTS Rod Seals (Single Acting) 40 3 -30ºC +110ºC GSJ Rod Seals (Single Acting) 40 3 -30ºC +110ºC GSI Rod Seals (Double Acting) 40 5 -45ºC +200ºC DH-5 Dust Sels 2 -40ºC +110ºC DHS Dust Sels 2 -40ºC +110ºC GSZ5 Dust Sels 5 -40ºC +110ºC DKBI Dust Sels 3 -30ºC +100ºC DKBZ Dust Sels 3 -30ºC +100ºC RVA Rod Var i Seals 45 15 -70ºC +260ºC GRS Rotary Rod Seals 30 1 -30ºC +200ºC ROI Rotary Rod Seals 28 0.3 -30ºC +100ºC BRT Rod Seal Backup rings 1 -45ºC +200ºC N4W Piston Backup rings 1 -45ºC +120ºC KZT Dust Rings 5 -45ºC +200ºC WR Wear Rings 1 -45ºC +120ºC RYT Guide Tape 5 -45ºC +200ºC Sealing Component Storage Guidelines and Recommend-ed Shelf Life Storage Recommendations: Stock Control Follow the First- In-First-Out (FIFO) princip le Optimal Temp. Seals should be kept aw ay from heat sources like direct sunlight and heat-emitting objects . The maximum storage temperature is +32°C. Low temperatures w on't cause permanent damage to the seals but can make them brittle, leading to potential breakage if mishandled. Generally , the storage temperature for seals should not go below +10°C, and they should be brought to room temperature before installation. Avoid strong light Surfaces should be shielded from direct sunlight and artificial light sources to prevent ex

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