Hydraulic Seal

High-Quality Double Acting Piston Seal Rings for Hydraulic Cylinders

SPGO SPGO is a standard compact seal for wide application. It works excellent for heavy duty,two-way piston sealing under high pressure,low pressure and high frequency conditions. Standard Materials • Sealing ring: filled with polytetrafluoroethylene F-PTFE • O-ring: nitrile rubber NBR or fluororubber FKM Features • Good sealing performance in both dynamic and static conditions • Allows for larger extrusion gaps, reducing processing costs depending on the application • Can be safely used in Medium with contaminants due to the larger extrusion gaps • Low friction and no crawling phenomenon • Simple groove design, suitable for integral pistons • Strong adaptability to working conditions due to the availability of various materials If you have specific requirements (pressure, temperature, speed, special Medium, etc.), please contact our consulting service department for recommendations on suitable materials. Technical Specification • Pressure: 40 MPa • Speed: 5 m/s • Temperature: -45°C to +200°C, depending on the O-ring material • Medium: Mineral hydraulic oil, fire-resistant hydraulic oil, environmentally friendly hydraulic oil, water, air, and other Medium, depending on the O-ring material. Clearance: The maximum allowable radial clearance (emax) varies with the working pressure and functional diameter, as indicated in the table below. Applications These seals are highly suitable for hydraulic systems and reciprocating motion applications, particularly in heavy-duty, bi-directional piston sealing scenarios under high pressure, low pressure, and high-frequency conditions. They are suitable for both long and short strokes and can accommodate larger piston clearances in situations involving a wide range of fluids and high temperatures. Examples of their applications include injection molding machines, bulldozers, agricultural machinery, presses, and other machine tools. These seals comply with the IS0 7425/1, GB/T1542.1-94, and GB/T15242.3-94 standards 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

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