“Soft Seated Valves: Providing a smooth and reliable flow.”

Soft Seated Valve: An Overview

Soft seated valves are a type of valve commonly used in various industries for controlling the flow of fluids. These valves are designed with a soft material, such as rubber or PTFE, to create a tight seal between the valve disc and the valve seat. This seal helps prevent leakage and ensures smooth operation of the valve.

One of the key advantages of soft seated valves is their ability to provide a bubble-tight seal, even in high-pressure or high-temperature applications. This makes them ideal for use in industries where leakage can be a critical issue, such as the oil and gas, chemical, and pharmaceutical industries. The soft material used in these valves also helps reduce wear and tear on the valve components, leading to longer service life and lower maintenance costs.

Soft seated valves come in various types, including ball valves, butterfly valves, and plug valves. Each type has its own unique design and operating mechanism, but they all share the common feature of a soft seating material. This material is typically made of materials like PTFE, EPDM, or Viton, which are known for their excellent sealing properties and chemical resistance.

Model  MSS2 ASS2 -LCD/LED        
Working Position   Service->Back Wash->Upflow Brine and slow rinse-> Fast rinse->Refill the softener water->Service .
Regeneration mode Manual                  Automatic type 
Meter Delay 
Meter immediate
Intelligent Meter Delay
Intelligent Meter Immediate
Timer by day :  0-99 days 
Timer by hours: 0-99 hours 
Inlet 3/4” 3/4”  1” 
Outlet 3/4” 3/4”  1” 
Drain 1/2” 1/2”  
Base 2-1/2” 2-1/2”
Riser pipe 1.05” OD 1.05” OD
Water Capacity 2m3/h 2m3/h
Working Pressure 0.15-0.6Mpa 0.15-0.6Mpa
Working Temperature 5-50° C
Power Supply No Need Power AC100-240 / 50-60Hz     /       DC12V-1.5A  

In addition to providing a tight seal, soft seated valves also offer low operating torque, which makes them easy to operate and control. This is especially important in applications where frequent opening and closing of the valve is required. The low torque also helps reduce wear on the valve actuator, leading to longer service life and improved reliability.

Soft seated valves are also known for their versatility and flexibility. They can be used in a wide range of applications, from low-pressure water systems to high-pressure steam systems. This makes them a popular choice for many industries looking for a reliable and cost-effective valve solution.

When selecting a soft seated valve for a specific application, it is important to consider factors such as the type of fluid being controlled, the operating pressure and temperature, and the required flow rate. It is also important to consider the compatibility of the soft seating material with the fluid being controlled, as some materials may degrade or deteriorate when exposed to certain chemicals or temperatures.


In conclusion, soft seated valves are a versatile and reliable valve solution for a wide range of industries and applications. Their ability to provide a tight seal, low operating torque, and long service life make them an ideal choice for controlling the flow of fluids in demanding environments. By understanding the benefits and considerations of soft seated valves, engineers and operators can make informed decisions when selecting the right valve for their specific needs.

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