1. Material : PU, polyurethane
2. Color : red, green, blue ect
3. Specification : according to customers' need
Hydraulic Seals - Introduction
1)Hydraulic seals describe a class of seals that are used in applications with either rotary or reciprocating motions.
2)Hydraulic seals are exposed to hydraulic fluids such as hydrocarbon and phosphate ester and are designed for high-pressure dynamic applications such as hydraulic cylinders. Hydraulic seals usually need to be higher friction seals than pneumatic seals but often operate under lower operating speeds.
3)The sealing orientation for hydraulic seals can include internal (rod seal), external (piston seal), symmetrical or axial seal. With the internal (rod) seal, the seal is fit into a housing bore and the sealing lip touches the shaft.
4)With the external (piston) seal, the seal is placed onto a shaft and the sealing lip touches the housing bore.
5)Since symmetric seals are the same on both sides they will function as either a rod or a piston seal. The axial seal fits axially against the housing.
6)Rotary applications need only one hydraulic seal (single acting) because it can seal in the one axial direction the application is moving.
7)However, a reciprocating application will need two hydraulic seals (double acting), one for each of the directions.
8)The life of hydraulic seals is dependent on many factors including the maximum operating speed, maximum operating temperature, maximum operating pressure and the vacuum rating.
9)When ordering hydraulic seals you will want to know the shaft outer diameter or seal inner diameter, housing bore diameter or seal outer diameter, the axial cross section and the radial cross section.
Hydraulic Seals – Type
Both Piston & Rod Seals
Polyurethane seals is one of the most commonly used elastomer in most of the industries, when high levels of abrasion are present. This abrasion resistance is combined with high load & impact bearing capabilities that make polyurethane the material of choice for a number of machines and other engineering products.
Application Range Pressure [MPa] 40 Temperature [° C] -20...+100 Sliding speed[m/s] 0.5 Medium: Mineral oil based hydraulic fluids, barely flammable hydraulic fluids, water, air and others.
Application Mobile hydraulics Hydraulic cylinders Industrial hydraulic
Hydraulic Seals – Material
Hydraulic Seals - Seal Kits
1)As the current business environments around us have been very competitive. We D.L understand of our role to be productive, cost-effective and quality oriented for our clients.
2)We will continuously practice the attempts to maintain a customer service second to none keeping our market position as a leader and achieving the unity that brings us to the continuous growth and prosperity.
3)Through dialogue with those who are buying D.L products on a daily basis, the company is continually gaining new knowledge which it incorporates into product development.
4)In this way, the company contributes with innovative products and services towards optimizing working procedures.
Application of Seal in Various Industries
General mechanical cylinder appropriative seal: USH, UPH, USI, UPI, ODI, IDI, OSI, ISI, SPG, LBH, LBI
Dongguan DL Seals Co., Ltd. is a professional seals manufactory with 16 years of history.
We are specializing in production of rubber, metal sealing element series products. Our products are widely used in dynamic and static and rotating types of equipment. The raw materials are imported from German company Bayer and Japan Daikin company, and the size range and functions are for all the customers needs.
Our company has a strong, professional R & D team, which can develop high-quality new ... View detail