
PTFE Hydraulic Rod Seals Step Seals
Model: DSD
Temperature: -45/+200℃
Speed: ≤15m/s
Pressure: ≤60MPa
Product Introduction
After years of unremitting efforts, we have formed a complete set of pre-sale, sales and after-sales service system, and become the leader in the ptfe rotary shaft seals, guide ring material, dust wiper seals industry. Our company will produce satisfactory products for you with standard business operation process and competitive price. Since its establishment, the company has been implementing the strategy of technological innovation and development, focusing on scientific and technological investment. We strive to build diversified industries, expand new ways of structural adjustment, and create a new environment for corporate growth.
Description
Piston Step Seals DSD is composed of PTFE seal and O-ring. A single-acting O-Ring energized piston seal for dynamic applications installed in closed grooves, including grooves to ISO 7425. Hydraulic step seals offers high sealing efficiency, low friction with no stick-slip, minimal break out force and high wear resistance.
Its design eliminates the potential for stick-slip and its very low running friction makes it ideal for high-speed applications. Provide outstanding wear and extrusion-resistance properties as well as large range of temperature and high-speed capabilities.
Piston Stepseal is available in a variety of DSH Seals high-performance materials to suit a wide range of demanding applications. A tandem arrangement using the DSD in an high performance material is effective in sealing high-frequency and long-stroke applications.
Slide Ring Material | PTFE Filled Bronze, Carbon, MoS2, Graphite, Glass Fiber, Ekonol, Polyimide, etc. |
Slide Ring Color | Black,Green,Coffee,Yellow etc. |
O Ring Material | NBR or FKM |
Color | Black or Brown |
Speed | ≤15m/s |
Temperature | -45 to 200℃ |
Pressure | ≤60MPa |
Medium | Mineral oil based hydraulic fluids, barely flammable hydraulic fluids, water, air and others |
Application | Standard cylinders, Ceramic machine, Machine tools, Mobile hydraulics, Presses etc. |
Standard or can fit the groove | Comply with standard of ISO7425/1, GB/T15242.3, PS14/PS12/PS16, GS55044/42/46, GSD, Trelleborg-PS series, Merkel company's OMK-E series, Parker-OG series, and the AS company's YAB series |
Pressure | 160bar | 250bar | 400bar |
Max Gap E | E≤0.6mm | E≤0.4mm | E≤0.2mm |

Installation Dimension table based on Metric Size (mm)
D H9 | d h9 | L +0.2 | O Ring CS d1 | C≥ | R1≤ |
8~24 | D-4.9 | 2.2 | 1.8 | 2 | 0.4 |
15~48 | D-7.3 | 3.2 | 2.65 | 2 | 0.4 |
25~110 | D-10.7 | 4.2 | 3.55 | 3 | 0.8 |
50~140 | D-15.1 | 6.3 | 5.3 | 5 | 1.2 |
125~320 | D-20.5 | 8.1 | 7 | 7.5 | 1.6 |
330~660 | D-24 | 8.1 | 7 | 8 | 1.6 |
670~990 | D-27.3 | 9.5 | 8.4 | 8 | 1.6 |
1000~1500 | D-38 | 13.8 | 12 | 8.5 | 2 |
Feature
● Very high resistance to pressure and hardness
● Good thermal conductivity
● Very good protection against extrusion
● High resistance to abrasion
● Low friction, free of stick-slip

The company has 5,000 square meters of professional production plants, 2000 square meters of constant temperature and humidity production workshop, dozens (sets) of advanced production equipment.
Own a professional and technical production team and sales service team.
The selection of raw materials are international first-line brand suppliers, In order to ensure product quality, we promise that don't add waste (recycled materials) in the material.


Our pros are lessen prices, dynamic sales team, specialised QC, sturdy factories, top quality services and products for PTFE Hydraulic Rod Seals Step Seals. We are able to meet the increasingly competitive market environment. All merchandise are manufactured with advanced equipment and strict QC procedures in purchase to assure high-quality.
Hot Tags: hydraulic cylinder piston step seals, China, suppliers, manufacturers, factory, customized, wholesale, osi seals, usi seals, variseal ring, dust wiper, piston spring energized seals, cup seals for hydraulic cylinders
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