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SHANGHAI HUIXUAN VALVE

Tel:+86-17717520739

Email:info@shxvalve.com

Address: NO.720, Suide Road, Jiading District,Shanghai, China.
 

Steam Trap Valve Manufacturer

2022-11-27


Stram trap valve manufacturer, China steam trap valve factory and supplier for free float steam trap, lever float ball steam trap, inverted bucket steam trap, disc thermodynamic trap, thermostatic steam trap, bimetallic steam trap and other steam traps.

What Is A Steam Trap Valve?

 

Stram trap is an automatic valve that automatically drains condensate from steam to the outside of the valve body while maintaining tight contact with live steam, if necessary, allowing steam to flow at a controlled or adjusted rate. Most steam traps are capable of draining non-condensable gases while maintaining close contact with the steam.

In industry, steam is often used for heating or as a driving force for mechanical power. So the main function of a steam trap is used in such conditions to make sure that steam is not wasted.

Steam Trap Valve Manufacturer

Why Steam Trap Valve Is Used In Piping?

Steam is created when water vaporizes into a gas. To make the vaporization process happen, the water molecules must be given enough energy to break the hydrogen bonds between the molecules, and this energy to convert the liquid into a gas is called “latent heat”.

The steam-based heating process uses latent heat and transfers it to a given product. When the work is complete, i.e., the steam has given up its latent heat, the steam condenses and becomes condensate. In other words, condensate does not have the ability to do work with steam. Therefore, if condensate is not removed as soon as possible, either in the steam transport piping or in the heat exchanger, the heating efficiency will be compromised.

How Many Types Of  Steam Trap Valve Are There?

Steam traps are valves used in steam piping and equipment to automatically discharge condensate, air, and other non-condensable gases, and to prevent steam leakage. Based on the operating principle of steam traps, there are three types of steam traps as follows.

1. Free Float Steam Trap

Free Float steam trap (CS41H flanged end free float steam trap, CS11H threaded end free float steam trap) is an automatic valve, especially for steam equipment with low pressure, low drainage, and high stability of temperature. The float steam trap is capable of discharging condensate from steam piping networks and heating equipment and preventing steam leakage. This product is widely used in petroleum, chemical, textile, printing and dyeing, pharmaceutical, pulp and paper, food, and other industries.


Free Float Steam Trap Features

  • Ability to continuously drain stable performance, large capacity, low air leakage rate, and high back pressure rate.
  • Stainless steel hollow free float is the main part of the valve, it adopts stainless steel ground round float ball.
  • All internal parts use stainless steel material which is corrosion resistant, wear-resistant, long service life.
Free float stream trapFree float stream trap
Free Float Steam Trap Dimension
Free Float Steam Trap Dimension

 

2. Lever Float Ball Steam Trap

The biggest advantage of the lever float ball steam trap is not affected by the fluctuation of pressure, temperature and condensate flow, continuous drainage, water is drained, the minimum undercooling degree is 0℃, can make the heating equipment to achieve the best work efficiency; The valve seat of the lever float type steam trap is always below the liquid level to form a water seal without steam leakage; Its minimum working pressure is 0.01Mpa, the maximum back pressure rate is less than 85%; Internal with exhaust device, lever float type steam trap adopts the most advanced membrane box element as the automatic air exhaust valve, can automatically exclude non-condensing gas, very sensitive, high working quality, long service life. The lever float steam trap is designed with balanced double seat structure, which can achieve small volume and large displacement. It is especially suitable for large heating equipment and heat exchange station equipment to prevent steam drainage. It is the preferred steam trap for large heating equipment.

Lever float steam trap uses double holes, so that the pressure of the valve core is relatively reduced when the valve is opened, so as to obtain a large displacement. When working, the float floats up and down with the change of the liquid level in the valve chamber, driving the lever to open or close the seat. As the valve seat hole is below the water level of the condensate water, the water seal is formed, and the water and steam are separated naturally to achieve no steam leakage.

FT44H Free Float Ball Steam Trap Dimension
FT44H Free Float Ball Steam Trap Dimension

FT44H Free Float Ball Steam Trap


FT43H Free Float Ball Steam Trap Dimension
FT43H Free Float Ball Steam Trap Dimension

FT43H Free Float Ball Steam TrapFT43H Free Float Ball Steam Trap

 

3. Inverted Bucket Steam Trap

Inverted bucket trap is an inverted bucket that is level sensitive, with the bucket opening downward and connected to a lever to drive the disc to open and close the valve. The inverted bucket trap is capable of discharging air, is free of water shock, and has good dirt resistance.

The steam leakage rate is less than 3%, the back pressure rate is 75%, there are more connections, and the sensitivity is not as good as that of the free float type trap. Because inverted bucket traps rely on the upward floating force of steam to close the valve, they are not suitable for use when the differential pressure is less than 0.1 MPA.

Inverted Bucket Steam TrapInverted Bucket Steam Trap

4. Thermadynamic Steam Trap

According to the principle of phase transformation, the disc thermodynamic steam trap depends on the different thermodynamic principles of velocity and volume change when steam and condensed water pass through, so that the upper and lower pressure difference of the valve disc is generated, and the valve disc is driven to open and close the valve. Because the working power of the thermal steam trap comes from steam, so the steam waste is relatively large. Simple structure, water shock resistance, the maximum back of 50%, noise, frequent valve work, short service life.

Thermadynamic Steam Trap

Thermostatic traps are based on the balance of steam pressure and the internal pressure of the thermostatic membrane capsule, which is filled with a special liquid whose saturation temperature is slightly lower than that of steam at any pressure.

In the start-up position, the steam trap opens fully to remove air and drain condensate. When the temperature reaches the pressure-dependent saturated steam level, the vaporization of the liquid inside the thermostatic capsule membrane generates a differential pressure that causes the orifice to close. As the condensate cools, the condensation of the liquid reduces the internal pressure of the membrane. The resultant differential pressure will benefit the external pressure that acts on the membrane by retracting and opening the orifice, which allows the condensate to drain and the cycle to continue.


Disc Thermadynamic Steam Trap DimensionDisc Thermadynamic Steam Trap Dimension

5. Bimetallic Steam Trap

The Bimetallic Steam Trap works by striking a balance between the opposing bi-metal force, which depends on temperature and attempts to close the discharge valve, and the steam force, which depends on pressure and tries to open the valve. The trap is calibrated so that the bi-metal force will prevail at saturated steam temperature while the force of pressure will prevail with under-cooled condensate and air and open the valve.
Bimetallic Steam Trap

Bimetallic Steam Trap Dimension

Bimetallic Steam Trap Dimension
Bimetallic Steam Trap Dimension
 

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