The biggest features and advantages of high-pressure soft-sealing ball valves are soft sealing and high parameters. It has the following main technical features:

1.Soft sealing technology

Flexible materials are used as seals of ball valves to achieve soft sealing, which can effectively compensate for the matching error between the valve seat and the ball and ensure sealing reliability in long-term use.

2. High parameter design

Usually, an optimized design is adopted to withstand higher pressure parameters and temperatures and expand the scope of use.

3. Low torque

The soft sealing structure has small friction, low starting torque, and is easy to operate automatically.

4. Low leakage rate

Soft seals can achieve extremely low internal and external leakage levels and are very suitable for certain media.

5. Resistant to pollution and corrosion

Use anti-pollution and corrosion-resistant materials to increase service life under harsh conditions.

6. Automatic compensation of pressure difference

In the case of pressure difference fluctuations, the sealing surface gap can be automatically adjusted to ensure the sealing effect.

7. Various connection methods

Can be matched with different port connection methods, such as flange connection, threaded connection, etc., flexible to use

Commonly used sealing materials mainly include:

1. PTFE

PTFE has excellent high temperature resistance, corrosion resistance and low friction coefficient, and is one of the most commonly used soft sealing materials for high-pressure ball valves. It has a wide operating temperature range (-260°C~+260°C) and good sealing effect.

2. FKM

FKM has excellent thermal stability and chemical stability and can be used under most media conditions. The operating temperature range is -20°C~+200°C.

3. NBR

NBR has good compatibility with mineral oil and fuel, and can be used under gasoline, diesel and other conditions. The operating temperature range is -30°C~+120°C.

4.EPDM

EPDM has excellent ozone resistance and heat aging resistance, and can be used in hot water and steam conditions. The operating temperature range is -50°C~+150°C.

5.FFKM

FFKM has a wide operating temperature range (-20°C~+320°C) and can be used in the most demanding corrosion and high temperature conditions.

Other materials include HNBR, VMQ, AFLAS, etc. Appropriate sealing materials should be selected according to different media and pressure and temperature conditions.