CBD.SEALS

Tel: 86-17788539660

Water & Sanitary

The water supply and sanitation and safety industries have extremely stringent requirements for sealing products, as these seals are directly related to the safety of water quality and the reliability of the system.

 

Seals material

EPDM (EPDM rubber): Excellent ozone, UV and chemical resistance, suitable for outdoor and exposed environments.

NBR (Nitrile Rubber): with good oil resistance and heat resistance, suitable for media containing oil or chemicals.

PTFE (polytetrafluoroethylene): excellent chemical resistance, low coefficient of friction and non-adhesive, suitable for high-performance seals and bearings.

SILICONE RUBBER: Excellent resistance to high temperatures and weathering for high temperature environments or applications requiring long term stability.

PUR (Polyurethane): High strength and abrasion resistance, suitable for seals with high loads and high speed movements.

Types of seals

O-Ring: for static and dynamic sealing, suitable for pipe connections, valves and pumps.

Gasket: for flat sealing, such as flange connection, water tank and storage tank sealing.

Seals: for door and window seals, e.g. seals for water treatment facilities.

Oil seals: for sealing of rotating shafts to prevent lubricant leakage, e.g. in pumps and agitators.

Dust jackets: used to protect moving parts from dust and contaminants, such as dust jackets for valves and pumps.

Seals design

Weatherproof design: seals need to be able to resist the effects of natural factors such as UV rays, temperature changes and humidity.

Pressure-resistant design: seals need to be able to maintain sealing performance in high-pressure environments to prevent leakage.

Temperature Resistant Design: Seals need to be able to maintain stable performance in high or low temperature environments.

Chemical resistant design: seals need to have good chemical resistance to adapt to a variety of water quality and chemical treatment agents.

Seals Manufacturing and Processing

Precision machining: Seals need to be precision machined to ensure dimensional accuracy and surface finish to ensure sealing performance.

Surface treatment: Seal surfaces may require special treatments such as polishing, coating, etc. to improve corrosion and wear resistance.

Cleaning and Sterilization: In some applications, seals require stringent cleaning and sterilization to ensure sterility and contamination free.

Seals testing and validation

Weathering Test: Seals are tested for weathering resistance under simulated natural environmental conditions.

Pressure resistance test: Test the pressure resistance of seals under simulated high pressure conditions.

Temperature Resistance Test: Test the temperature resistance of seals under simulated high or low temperature conditions.

Chemical resistance test: test the chemical resistance of seals under simulated chemical medium conditions.

Examples of seals applications

Water supply pipe systems: use pressure and chemical resistant seals, such as O-rings and flange gaskets for pipe connections.

Wastewater treatment system: use wear-resistant and chemical-resistant seals, such as oil seals for pumps and valves, dust jackets.

Water treatment facilities: use weather and chemical resistant seals such as seals, gaskets for water tanks and storage tanks.

Sanitary piping systems: use seals that are sterile and resistant to disinfectants, such as high-purity piping systems for the food and pharmaceutical industries.