Hard-On-Hard Sealing Butterfly Valve
The Hard-on-hard sealing butterfly valve is a high-performance valve designed for harsh working conditions and is widely used in the petroleum, chemical, electric power, water treatment and other industries. Its core feature is the use of carbide sealing pairs (valve seats and valve discs), which can achieve reliable sealing performance in high temperature, high pressure and highly corrosive media. Compared with ordinary Triple-off set butterfly valves, Hard-on-hard sealing butterfly valves have significant advantages in sealing methods, durability and applicable working conditions.
Features Of Hard-on-hard Sealing Butterfly Valves
Carbide seal:
The valve seat and valve disc are made of carbide materials (such as stainless steel, tungsten carbide, etc.), which have extremely high wear resistance, corrosion resistance and anti-scouring ability. The sealing surface is precisely machined to ensure that the valve achieves zero leakage in high pressure, high temperature and highly corrosive media.
Low flow resistance design: The valve disc adopts a streamlined design to reduce fluid resistance and improve system efficiency. When fully open, the flow channel is unobstructed, the pressure drop is small, and the energy-saving effect is significant.
Quick opening and closing:
Full opening or closing can be achieved by rotating 90 degrees, which is easy to operate and responds quickly.
Multiple operations: support manual, electric, pneumatic and other drive modes to meet different working conditions. Can be equipped with intelligent control system to achieve remote operation and automatic management.
Application Range
- Applicable to various media such as water, steam, oil, gas, granular medium, etc.
- Especially suitable for high temperature, high pressure, strong corrosive and high wear conditions.
- Difference between hard-to-hard butterfly valve and ordinary Triple-off set butterfly valve
|
Characteristics |
Hard-on-hard sealing butterfly valve |
Triple-off set butterfly valve |
|
Sealing method |
Carbide sealing pair, metal-to-metal seal |
Soft seal (such as PTFE, rubber) or metal seal |
|
Applicable media |
High temperature, high pressure, highly corrosive, high wear media |
General media such as ordinary water, gas, oil, etc. |
|
Sealing performance |
Zero leakage, suitable for harsh working conditions |
Good sealing under general working conditions, limited under extreme working conditions |
|
Durability |
Wear-resistant, corrosion-resistant, long life |
Soft seals are easy to wear and have a relatively short life |
|
Maintenance cost |
Low maintenance frequency, low long-term use cost |
Soft seals need to be replaced regularly, and the maintenance cost is high |
|
Price |
High initial cost, but high long-term cost performance |
Low initial cost, but high maintenance cost |
|
Applicable temperature |
Can adapt to higher temperatures (such as above 600°C) |
Limited by soft seal materials, the applicable temperature is low |
Application
Petrochemical
Used for the control and cut-off of crude oil, natural gas, and chemical media, especially for media containing particles or corrosive media.
01
Electricity
Used for high temperature and high pressure control of boiler feed water and cooling water systems.
02
Metallurgy
Used for the control of high temperature and high pressure gas and liquid, and can withstand high wear.
03
Water treatment
Used for flow regulation and cut-off of media containing particles or corrosive media.
04
Mining
Used for the control of highly abrasive media such as slurry and mud.
05
Product Advantages
- High reliability: Carbide sealing pairs ensure long-term stable operation of valves under
- extreme working conditions.
- Long life: wear-resistant and corrosion-resistant, reducing maintenance frequency and use costs.
- Environmental protection and energy saving: low flow resistance design reduces energy loss and meets the environmental protection requirements of modern industry.
- Wide applicability: suitable for a variety of harsh working conditions, expanding the application range of butterfly valves.
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