Fully Welded Ball Valves Price and design

Short Description

China fully welded ball valve price, Advanced Design For Safety and Reliability; Pipeline Transportation, Meeting API 6D

Fully Welded Ball Valves Specification
• DDB or DIB Function for option
• Welding Slop with 100% X-Ray Examination
• Full Port, API 6D, API 607 Firesafe
• Injection Port for seat & stem, Drain and Vent Ports
• Stem extension for underground installation on request
• Self relieving seat
• Fire safe design,Anti-static device,Blow-out proof stem 

Fully Welded Ball Valve Design
The fully welded body design shall carry out the the finit element stress analysis.

Fully Welded Ball Valves Seat Design 
The seat can be designed to DBB, DIB-1, DIB-2 to better satisfy the working condition.

Fully Welded Ball Valves Ball Design
When the ball is subject to medium force, the ball passed the force to the trunnion plate(rather than the stem), thus ensure the safety and easy operation for the stem. 

Fully Welded Ball Valves Drawing 

Fully Welded Ball Valves Main Parts

Part No.	Part Name	Part No.	Part Name
1	Body	15	Seal Gland
2	Anti-fire Packing	16	Thrust Bearing
3	Seat	17	Stem
4	Seat Ring	18	Flat Key
5	O-ring	19	Thrust Bearing
6	Spring	20	Anti-fire Gasket
7	Bonnet	21	Connection Plate
8	Sealant Injection Valve	22	Socket Head Screw
9	Check Valve	23	Packing
10	Ball	24	Packing Gland
11	Thrust Gasket	25	Anti-static Device
12	Sliding Bearing	26	Air Release Valve
13	Pin	27	Drain Valve
14	Bearing Holder

Corrosion Resistance and Sulfide Stress Resistance
Certain corrosion allowance is left for the body wall thickness. The carbon steel stem, fixed shaft, ball, seat and seat ring are subject to chemical nickel plating according to ASME B733 and B656. The valve material are to meet Nace MR 0175/ISO 15156 or Nace MR 0103 according to customer request, fully meet the reuqirements in standards and meet the service conditions in sulfurization evioronment. 

Non Destructive Examination
The forging materials are subject to ultrasonic examination according to ASME non destructive flaw detection requirements. The welding slope in connection connection face is subject to liquid penertration examination, or X-ray examinatiion.

Overview of Fully Welded Ball Valves
Fully welded ball valve are used mainly in Gas Transmission and Distribution pipeline (Mid-stream), typical for underground and buried installation. Fully welded ball valves normally adopt forged steel body; however, cast steel body is also available. There are normally extended stem for fully welded ball valves used for underground. The main advantage of fully welded Ball Valves is that there is no leaking path through the joints. 

What are the main types of ball valves that do?

Ball valves are mainly used to cut off or connected media can also be used for fluid regulation and control, V-type ball valve can be more precise flow regulation and control, while the three-way ball valve is used for the distribution media and change the flow of media. What are the main types of ball valves that do? The following is a brief introduction of several commonly used:

First, the ball valve form of the structure can be divided into:

1)Floating ball valve.
The ball valve is floating under the media pressure, the ball can produce a certain displacement and pressed on the sealing surface of the outlet end, ensure the outlet end seal.
Floating ball valve simple structure, good sealing, but the ball all bear the load of the working medium to pass the exit ring, so to consider the ring material can withstand the work load media sphere. This structure is widely used in the low-pressure valve.
2)Fixed ball valve or trunnion mounted ball valve.
The ball valve is fixed, no pressure produces no movement. Fixed ball valve comes with a floating valve seat, by medium pressure, the valve seat to move, so that seals pressed onto the ball, in order to ensure the seal. Usually with the ball, the lower shaft with bearings, operating torque, suitable for high pressure and large diameter valves.
To reduce the trunniuon ball valve torque value and can increase the degree of sealing, ball valve seals has emerged in recent years, both the pressure injection of a special lubricant between the sealing surface to form a layer of film that enhances the seal, and reduces operator torque, more suitable for large-diameter high-pressure valve.
3)Elastic ball valve.
The ball valve is elastic. Ball and valve seat rings are metal materials, sealing pressure than the large, rely on the media itself has reached less than the pressure seal of requirements to be imposed force. This ball valve is suitable for high temperature and high pressure medium.
Elastic sphere is the sphere in the lower end of the inner wall to open a resilient groove, and get flexible. When closing the channel, with the stem of the wedge-shaped head with the ball to open up the seat pressing to seal. Before turning the ball first release wedge-shaped head, the ball along with restoration of the original prototype, so that small gap, sealing surface can reduce friction and operating torque between the ball and valve seat.

Second, the ball valve according to the driving mode can be divided into:
1)The electric ball valve: With electric drive ball valve.
2)Pneumatic ball valve: With compressed air ball valves.
3)Hydraulic ball valve: With oil fluid pressure actuated ball valve.
In addition there are more than a combination of several driving modes, such as gas - electric ball valves.
4)Manual ball valve: With the manual ball valve hand wheels, handles to manipulate the ball valve action. When the ball valve opening and closing torque is large, it can be set between the hand wheel worm reducer and stem. If necessary, you can also use the direction of the joint and the drive shaft for remote operation.
Third, the ball valve can be divided according to the connection method:

1) Threaded ball valve: Ball valve with internal or external thread and pipe thread connections.
2) Flanged ball valve: Ball valve with flange and pipe flange.
3)Solder connection Ball Valve: Ball valve with welding and pipe welding groove connection.
4)Wafer ball valves: bolt directly to the ball and clipped together through two pipelines form of connection.

Fourth, the ball valve can be divided according to body material:
1)The metal material ball valve: other parts of its body is made of a metallic material. Such as cast iron ball valve, carbon steel ball valve, steel ball valve, copper alloy ball valve, aluminum ball valve, titanium ball ball, Monel ball valve.
2)Non-metallic materials ball valve: their body and other parts are made of non-metallic materials. Such as plastic ball valve.
3)Metal body lined Ball valve: body shape for the main surface of the metal, interior where contact with the media are lining, such as rubber lined ball valve, lined ball valve.

Fifth, the ball valve can be divided according to their channel position:
Straight ball valve, ball valve (L-type ball valve, T-type ball valve and Y-type three-way ball valve), the four-way ball valve and right angle ball valve. After three valve for dispensing the media and change the flow of media.
Sixth, the ball valve can be divided according to their channel types: full bore ball valve, constriction ball valve, double necking ball valve.
Seven, ball valve can be divided according to the other: a monolithic ball valve, 2-pc ball valve, 3-pc ball valve, side-mounted ball valve, top entry ball valve.

Should you want to know more about ball valve from Reliable China valve manufacturer, please visit www.reliavalve.com or email us via sales@reliavalve.com.

original:What are the main types of ball valves that do?

Cone strainers and strainer backwash model description

SR series strainers are petrochemical pump strainers, Y-type strainer, basket strainer, the model designation T-type strainer in front of the technology that I have described in detail in the article, the following main details Cone type strainer and backwash strainer model tag method:

First, the cone strainer and backwash strainer marking method.

Second, the cone strainer and backwash strainer structure type code.
SRZ I, steeple cone strainer.
SRF I, Horizontal backwash strainer.
SRZ II, flattened cone strainer.
SRF II, diversion backwash strainer.

Third, the cone strainer and backwash strainer end face type interfaces.

Threaded, welded connections, flanged, socket weld.

Fourth, the cone strainer and backwash strainer housing material designator.
C = carbon steel or cast steel
S = austenitic stainless steel
M = Low Alloy Steel
I = chrome molybdenum steel
H = Cr13 stainless steel
Q = ductile
K = malleable iron
R = Cr-Ni-Mo stainless steel
L = aluminum
T = copper and copper alloy
P = chrome-nickel stainless steel
V = chromium molybdenum vanadium steel
Note: The specific selection of materials should be specified in the technical data sheet strainers.

Five, cone strainer and backwash strainer flange sealing surface type code.
Projecting surface (smooth surface) = RF, concave = LF, convex = LM, ring groove surface = RTJ, the whole plane = FF, tongue and groove = TG

Six,Cone strainer and backwash strainer type illustrated.
Nominal diameter 50mm (2 "), nominal pressure 2.0MPa (150LB), connection type for the smooth face flange connection, the shell material is carbon steel are baffled T-type strainer, which is marked as: SRT I 4-2.0 -50 / C (RF).

Should you want to know more about strainer from Reliable Chinese valve manufacturer, please visit www.reliavalve.com or email us via sales@reliavalve.com.

original:Cone strainers and strainer backwash model description

The installation, maintenance and replacement for the Y-type strainer

Y type strainer during use inevitably encounter some problems, then how to facilitate the installation of the straineruse, repair and replacement of the strainerover it? Under normal circumstances Y-strainer Mounting Horizontal methods are based, but because the pipeline is under the influence of design or construction environment, sometimes Y-type strainermounting position it is unable to mobilize, so this time we generate a force doubts then whether Y-type strainer can be mounted vertically it?

Y type strainer is to rely on the flow of the pressure medium is the medium strainerimpurities trapped in the strainerto the strainerin order to achieve the medium coarse strainerproblem, since it is the role of the media pressure, then the Y-strainer there is no need to install in a horizontal or vertical issues, and only have a pressure differential, then after the time when the media naturally Y-type strainer out the media, it completed the task, as long as the installation is not too high, suitable for everyday maintenance cleaning straineryou can, but really it so?

Usually when you install the Y-strainer horizontal installation while Y-side down, so in order to strainermedia can be deposited under the action of gravity, in the maintenance of clean the strainerwhen you can clear impurities. When we mounted vertically, strainerimpurities can be deposited by gravity, can reciprocate in the pipeline, it will inevitably hamper the work of the strainermedia.

Special attention is needed: some users installed vertically using a Y-type strainer, Y-type end up, if at pressures not yet fully emptied, and clean the straineris likely to cause injury accident.

Y-type strainer mounting normal use can only be mounted horizontally, not vertically installed can use, where the beginning of the design should take this into consideration, but also pay attention to the mounting height of the problem and to allow the usual strainercleaning.

Should you want to know more about strainer  from Reliable China valve manufacturers, please visit www.reliavalve.com or email us via sales@reliavalve.com.

original:The installation, maintenance and replacement for the Y-type strainer

Metal seated ball valve laser cladding

Metal seated ball valve laser cladding technique refers to the different ways the filler valve on the coated surface of the sphere to put the selection of the coating material, by laser irradiation so that a thin layer of the sphere surface and ball simultaneously melted and rapidly solidified form dilution and the ball low ball into the surface coating material metallurgical bonding, thereby significantly improving the wear surface of the sphere, corrosion resistance, heat resistance and oxidation processes, such as: 60 # carbon steel tungsten laser After cladding, hardness up to 2200HV above, the wear resistance is about 20 times the base 60 # steel. After CoCrSiB Q235 steel surface by laser cladding alloy, the wear resistance and corrosion resistance of flame spray were compared and found that the corrosion resistance of the former was significantly higher than the latter.

metal seated ball valves for high temperature using laser cladding alloy technology sphere surface spray valve has a good effect, using this technology, the sphere of small heat-affected zone, the hardness of spray layer higher than nickel-based thermal spraying, but spray less efficient, and the ball sphere surface spray finish lower after processing a larger amount.
So, whether it is the use of laser cladding, nickel-based alloy thermal spray technology HVOF technology, ball and seat surface wear layer hardening technique should be based on the use of working conditions, medium hardness, the manufacturer of process conditions a reasonable choice and application.

Should you want to know more about ball valve from Reliable China valve manufacturer, please visit www.reliavalve.com or email us via sales@reliavalve.com.

from:Metal seated ball valve laser cladding

The installation, maintenance and replacement for the Y-type strainer

Y type strainer during use inevitably encounter some problems, then how to facilitate the installation of the straineruse, repair and replacement of the strainerover it? Under normal circumstances Y-strainer Mounting Horizontal methods are based, but because the pipeline is under the influence of design or construction environment, sometimes Y-type strainermounting position it is unable to mobilize, so this time we generate a force doubts then whether Y-type strainer can be mounted vertically it?

Y type strainer is to rely on the flow of the pressure medium is the medium strainerimpurities trapped in the strainerto the strainerin order to achieve the medium coarse strainerproblem, since it is the role of the media pressure, then the Y-strainer there is no need to install in a horizontal or vertical issues, and only have a pressure differential, then after the time when the media naturally Y-type strainer out the media, it completed the task, as long as the installation is not too high, suitable for everyday maintenance cleaning straineryou can, but really it so?

Usually when you install the Y-strainer horizontal installation while Y-side down, so in order to strainermedia can be deposited under the action of gravity, in the maintenance of clean the strainerwhen you can clear impurities. When we mounted vertically, strainerimpurities can be deposited by gravity, can reciprocate in the pipeline, it will inevitably hamper the work of the strainermedia.

Special attention is needed: some users installed vertically using a Y-type strainer, Y-type end up, if at pressures not yet fully emptied, and clean the straineris likely to cause injury accident.

Y-type strainer mounting normal use can only be mounted horizontally, not vertically installed can use, where the beginning of the design should take this into consideration, but also pay attention to the mounting height of the problem and to allow the usual strainercleaning.

Should you want to know more about strainer  from Reliable China valve manufacturers, please visit www.reliavalve.com or email us via sales@reliavalve.com.

from:The installation, maintenance and replacement for the Y-type strainer

Cone strainers and strainer backwash model description

SR series strainers are petrochemical pump strainers, Y-type strainer, basket strainer, the model designation T-type strainer in front of the technology that I have described in detail in the article, the following main details Cone type strainer and backwash strainer model tag method:

First, the cone strainer and backwash strainer marking method.

Second, the cone strainer and backwash strainer structure type code.
SRZ I, steeple cone strainer.
SRF I, Horizontal backwash strainer.
SRZ II, flattened cone strainer.
SRF II, diversion backwash strainer.

Third, the cone strainer and backwash strainer end face type interfaces.

Threaded, welded connections, flanged, socket weld.

Fourth, the cone strainer and backwash strainer housing material designator.
C = carbon steel or cast steel
S = austenitic stainless steel
M = Low Alloy Steel
I = chrome molybdenum steel
H = Cr13 stainless steel
Q = ductile
K = malleable iron
R = Cr-Ni-Mo stainless steel
L = aluminum
T = copper and copper alloy
P = chrome-nickel stainless steel
V = chromium molybdenum vanadium steel
Note: The specific selection of materials should be specified in the technical data sheet strainers.

Five, cone strainer and backwash strainer flange sealing surface type code.
Projecting surface (smooth surface) = RF, concave = LF, convex = LM, ring groove surface = RTJ, the whole plane = FF, tongue and groove = TG

Six,Cone strainer and backwash strainer type illustrated.
Nominal diameter 50mm (2 "), nominal pressure 2.0MPa (150LB), connection type for the smooth face flange connection, the shell material is carbon steel are baffled T-type strainer, which is marked as: SRT I 4-2.0 -50 / C (RF).

Should you want to know more about strainer from Reliable Chinese valve manufacturer, please visit www.reliavalve.com or email us via sales@reliavalve.com.

from:Cone strainers and strainer backwash model description