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Doris Wang
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Fully Welded Ball Valve is a kind of ball valve with fully welded valve body, it is widely used in some heating pipelines ,underground pipelines and so on .

Features

1.Fully welded valve body structure and no leakage.
2.30 years’ service life, no need for maintenance and same life expectancy with pipelines.
3.Specially made valve seat with multi-layer sealing structure that guarantees absolute seal.
4.Underground valve can be provided to save well making cost and reduce preliminary project investment, and ensure the safety of operation and maintenance personnel.
5.Over-pressurized prefabricated heat preserving valve can be provided which effectively prevents defects caused by bad heat-preserving conditions on site.

Technical Specifications

Valve Size:3/8"-58" DN10-DN1400
Valve Pressure : Class 150-Class300 PN16-PN25
Temperature range :-20℃~ 200℃
Operation method: Hand wheel, worm gear, electric actuator
Medium: Water, Oil, Gas, and so on.

Applications

Chemical Industry
Power Station
Municipal Engineering
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2019/1/7
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What cause internal leakage in industrial valve?
For many end user ,heavily internal leakage will happens in industrial valve .The reasons are maybe the following:
1. Valve disc or valve seat have a bad grinding quality;
2. There are some hard particles remaining in the pipe after installation, such as welding slag, iron rust etc .These particles will damage the sealing surface when moving to the sealing surface pair.
3. The fluid contains some highly rushing and abrasive particles ,which lead to sealing surface wear out .
Suitable valve type will be selected according to your working condition on site .Any questions ,welcome send email to marketing@qslkvalves.com.
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Merry Christmas !
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Bi-Directional Sealing Butterfly Valve In Buried Service were designed on the base of bi-directional metal sealing butterfly valves. They were developed for pipeline ,compressor station ,pump station operator . QUANSHUN's service team is ready to meet routine,emergency or preventative mataince chanllenges .They are widely installed at inlet of the water pump,piping network system,recovery stem,high water tank,sewage system and the back flow prevention to shut off or control the pipeline.


Benefits


1.Designed with bidirectional sealing structure,the installation of the metal seated butterfly valve will not be restricted by the direction of the fluid.


2.With long valve stem ,and butterfly valve is suitable for any in buried service .

3.You operate the valve on the ground ,the high performance butterfly valve can control the mnedium from underground pipeline .


4.The electrical bidirectional sealing meteal seated butterfly valve has a longer lifetime due to wear compensation.


5.With strong shearing force ,the solid particles can be crushed . So it suits for any non-clean industrial waters .


6.The length of valve stem can be designed according to your needs .


Technical Specifications

Body material :WCB
Sealing material:Hard alloy
Connection type:Flanged
Operating type:Electric
Size :DN300
Pressure:PN10

Application

Municipal Engineering,pipeline or any other in buried service



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Spherical Disc High Performance Butterfly Valve combined the advantage of butterfly valve and segment ball valve . It has bi-directional sealing performance and stop any medium leakage from different directional flow . It widely installed at at inlet of the water pump,piping network system,recovery stem,high water tank,sewage system and the back flow prevention to shut off or control the pipeline.Application industry include municipal engineering,circulating water system,water treatment system, fire extinguisher system and so on .Any non-clean industiral water is suitable and have a tight sealing to shut off water.Large size (more than DN3000) is also avaliable .
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Manual Operated Flat Bottom Tank Valve (referred to Tank valve, Angle bottom valve, Bottom drain valve, Flush mount valve,tank bottom angle valve etc) are designed to provide drainage and dead space free shut off for reactors, vessels, autoclaves and storage tanks. Both inside vesel opening and inside valve opening can be supplied.


The dead space free shutoff is accomplished by placing the valve seat flush with the bottom of the vessel. This eliminates any buildup of product within the vessel nozzle itself.

The series of tank bottom valve has two constructions: Y-type & angle type. According to the actual operating condition, the dumping entry has two types: pipe-connecting and flat bottom. If needed ,special surface treatment on the whole valve makes the surface hardness more than HRC 60, this can ensure the sealing reliability and avoid scarring. Moreover, a rotation-resistant device is set to ensure that the valve stem only has straight line motions, and no revolving motions. The driving manners of the valve include hand driving, electric ,driving, pneumatic and gear driving. Both rising disc type (the valve is opened into tank) and lowering disc type (the valve is opened into valve) can be designed.

BENEFITS


1.This range of manual control tank bottom angle valve is manufactured in y type integrated structure;

2. Short stroke for open/close operation;

3.lowering disc type (the valve is opened into valve) can be designed if needed.

4.The sealing surface of the valve seat and the valve disc is made of over laying cemented carbide or painted with tungsten carbide. The auxiliary line sealing guarantee the reliability of the sealing performance.

5. Crust breaking for disc rising type;

6.Disc is designed as external disc.


TECHNICAL SPECIFICATION :

Size: DN50-DN350
Pressure: PN10-PN16
Body Material: WCB
Connection Type:Flange



APPLICATION:

Alumina Refinery

Chemical Industry
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Large size spherical disc butterfly valves were installed at glycol circulating water station for some China Salt company , pump inlet valve size is DN1600,Pump outlet valve size is DN1400 .
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As we known ,119 is emergency telephone number . 9th November is regarded as fire prevention day ,while ,November is regarded as fire prevention month. Fire drill was hold On 13th November for all the QUANSHUN employees .


When the fire drills started ,all the office people evacuate from the build ,and run to the safe area as soon as possible .

QUANSHUN leaders gave a speech of fire control and escape procedures ,taught us how to use fire extinguisher as well as escape routes .For workshop safely production ,if the paint thinner catch fire ,what procedures should be taken ? Chose two workers answer them and select the right ranking .


Many of QUANSHUN employees go to work by car . About car spontaneous combustion ,we simulated it on site . How to prevent car spontaneous combustion, what should do when the car on fire ,we prepared a exercise during QUANSHUN drivers .

QUANSHUN employees got many fire preventing and controlling knowledge through the fire drill ,and pay great attention on safe production . We will spread the safe awareness and build a happy a life .


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2018/11/19
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On 26th October ,customers from Russia visited QUANSHUN VALVE factory and have a tour in the workshop ,then we have a deep valve technical seminar on high performance butterfly valve and segment ball valves . Both sides believed that these valves will have a promising application future in heating supply ,enegy ,thermo electricity system in the Russia market .
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2018/10/31
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