News

Some options for sealing rings

2023-02-20

Sealing rings are essential components in many industrial and mechanical applications, helping to prevent fluid or gas leaks and ensuring that systems operate effectively and effici..

Holiday notice

2019-01-29

we are a factory sepecializing in seals, supply hydraulic seals, wiper seals, oil seals, o ring, back up ring, U cup seals, Y ring, Spring energized seals,etc.

O-ring seal, spring energized seals for oil equipment

2019-01-26

Sealing ring series (also known as seals and oil seals) for petroleum machinery, mining coal mining machinery and petrochemical natural gas equipment. DSH Seals share with you that ..

Oil seals work and seal principle

2019-01-21

Petroleum rubber sealing ring, usually referred to as “end face sealing”, is a device to avoid the outflow of harmful fluids. In the working principle, the sealing effect is impro..

Sealing principle of hard seal butterfly valve

2019-01-17

The hard-sealed butterfly valve is a valve that realizes the opening or closing of the pipe by the rotation of the circular butterfly plate (sealing member) with the valve shaft. It..

A very hard PTFE O-type combination seal

2019-01-15

A combination of "hard" seals for PTFE O-rings can also be used in specific applications. The Dongpu seal tells you that this seal consists of a hard seal section with a flexible cu..

Sealing material and application of piston cup for construction machinery

2019-01-11

Piston cups for construction machinery are sometimes called skin buckets. DSH Seals share with you that the seal material originally used is made of leather and used in the hydrauli..

High pressure piston hydraulic seals

2019-01-08

Modern high-efficiency reciprocating seals, DSH Seals share with you that, to a large extent, due to the development of pistons and piston rod seals for hydraulic cylinders (to a le..

What is a gasket?

2019-01-05

Gasket (double scale flat gasket,annular flat gasket; is a mechanical seal or rubber seal between two objects) DSH Seal share with you that the gasket is the material used can be pa..

What is PTFE encapsulated O-ring?

2019-01-03

DSH Seals share with you that it is the second advantage of encapsulated O-ring with Teflon. The O-ring has the chemical resistance of PTFE and maintains the original flexibility an..