Full Welded Underground Extension Stem Ball Valve

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China Main Port
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TT or LC
Min Order Qty:
1 pc
Supply Capability:
1200 pc/month

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Product Description:

Quick Details of Full Welded Underground Extension Stem Ball Valve

Standard or Nonstandard:

Standard

Structure:

Ball

Pressure:

Medium Pressure

Power:

Manual

Material:

Forged

Temperature of Media:

-29℃-- 121℃

Media:

Oil

Port Size:

1"-48"

Place of Origin:

China

 

Packaging & Delivery of Full Welded Underground Extension Stem Ball Valve

Packaging Detail:

Plywood cases

Delivery Detail:

15 Days

 

Specifications of Full Welded Underground Extension Stem Ball Valve

1.Size:1"-48"

2.Connection: Flange RF/RTJ, BW, SW

3. Design: API 598/6D

 

Usage of Full Welded Underground Extension Stem Ball Valve

1.Bow-out proof stem
 
For the purpose of preventing the stem from flying off  resulting in abnormal rising of the inner pressure of valve,shoulder is fixed at the lower part of the stem.In addition,in order to prevent leakage resulting from burnout of packing set of the stem in a fire,thrust bearing is set at the contact position of the shoulder at lower part of the stem and valve body.Thus an inverse seal seat is formed which will prevent leakage and avoid accident.
 
2.Anti-fire safe design
 
When the trunnion ball valve be used normally,its sealed by seat and ball surface,seat retainer sealed by O-ring and body,this is soft sealed and reliable sealing.When the seat and O-ring are burnt,the seat retainer and body will be sealed by expanded graphite.Thus act anti-fire safe purpose.
 
3.Anti-static device
 
In order to prevent friction among ball,stem and PTFE that generates static electricity which may light the combustibles and explosives that cause an accident,in this ball valve,static-conduction spring is set between the stem and the ball,the stem and the body.Thus static electricity is conducted to ground and system safety is secured.
 
4.Free leakage of body Sealed construction
 
The connective position of valve body and bonnet is double sealed by gasket and O-ring,on this base,such factors as fire,high temperature,shock and uneven opening or closing of the torque all can't induce external leakage.
 
5.Low torque in operation
 
The self-lubricated bearings are installed at the friction of stem,resulting in wear resistance,fiexibility of operation and low torque.
 
6. Double block&bleed(DBB)
 
When ball is full open or close position,the transmitter substance in center cavity of body can be released by drainage and emptying devices.In addition,the over loaded pressure in the center cavity of valve can be  released to low pressure end by self relief seat.
 
7.Emergency sealing
 
Compound injection holes are designed and compound injection valves are installed at locations of stem/cap and body support of side valve.When sealing of stem or seat is damaged to induce leakage,the compound can be used to do the second time sealing.A concealed check valve is installed in side of each compound injection valve to prevent compound from out flowing due to the action of transmitter substance.The top of the compound injection valve is the connector for fast connection with compound injection gun.
 
8.Extension stem
 
For the underground installed valve,the stem can be lengthened and for the convenience of operation the corresponding compound injection nozzle and drainage valve can be extended to the top of valve.
 
9.Automatic body cavity relief
 
When the body pressure going up un-normally as the unstable factor,the trunnion ball valve downstream seat will be pushed by un-normally pressure,and the release theunnormal pressure automatically,it doesn't damage to the sealing of upstream seat.

 

 

 

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Q:Q4110 what is the ball valve? What does each number stand for?
It's Q41-10Q- stands for ball valves; 4- stands for connecting flanges; 1- is straight through floating ball; 10 means valve bore 10If it's Q4110, you're not sure
Q:What does "41H" mean in the ball valve Q41H-16?
Q41H-16 in ball valve 41H stands forQ stands for ball valvesThe drive mode is manual (omitted)The 4 connection type is flange connectionThe 1 representative structure is the floating ball direct flow channelH: alloy steel sealing surfaceThank you, that's over.
Q:What's the difference between a one piece ball valve and a two piece ball valve?
Structural features of two piece ball valve:1, opening and closing without friction. This function completely solve the traditional valve because of the friction between the sealing surface and affect the sealing problem.2, top structure. The valve installed on the pipeline can be directly checked and maintained, which can effectively reduce the device parking and reduce the cost.3, single seat design. The utility model eliminates the problem that the medium of the valve in the valve is influenced by the abnormal voltage increase.4 、 low torque design. Special structural design of the valve stem, with only a small hand, the valve can easily open and close.5 wedge sealing structure. Valve is provided by the mechanical force of the valve stem, the ball wedge to the seat and seal, so that the valve sealing is not affected by changes in pipe pressure, in a variety of conditions, sealing performance has a reliable guarantee.6. Self-cleaning structure of sealing surface. When the ball roll off the seat when the fluid in the pipeline along the sealing surface of the sphere into 360 degrees evenly through, not only eliminates the high speed fluid on the seat of local scour, also washed away the sediment on the sealing face, achieve the purpose of cleaning.Shanghai Taitong valve ball valve, butterfly valve, gate valve....
Q:What's the difference between a ball valve and a ball valve?
Ball, ball, hole, rotary ball, control, closureBall valve and plug valve is almost straight round solid ball.
Q:What does "ball valve" Q41F-10P mean?
Q valve (Qiu represents the first letter of the alphabet), 4 representative flange, second representative is 1 ball valve floating ball (ball valve floating ball and fixed ball, 7 ball, F fixed on behalf of) on behalf of PTFE- PTFE seal (PTFE PTFE), representing 10 of the nominal pressure valve is 10 kg (1.0Mpa), P represents the valve body material is 304 stainless steel.Soft sealing stainless steel flanged ball valve
Q:What does copper ball valve mean by "1/2"?
This indicates that the caliber of copper ball valve is DN15
Q:What's the diameter of the 4 point ball valve?
4 points is 0.4 inches, 1 inches =25.4 mm.Then the 4 point ball valve diameter is 10.16mm.
Q:Ball valve Q41f and Q11f difference, whether universal?
Q41 is flanged ball valve, Q11 is a threaded ball valve, the two connections in different forms, is not universal
Q:How many points of the ball valve, corresponding to a bit valve?
No detailed conversion forms are required. How many inches is the representation of inches?.In English, 12 inches are 1 feet, 1 inches =8 cents.So: 1/2 "ball valve, =4 sub ball valve, 1/4" ball valve, =2 sub ball valve, 3/8 ball valve, =3 sub ball valve, and so on.Just a simple conversion relationship.
Q:For the master enlighten Q47 ball seat spring hole number is determined by how
Calculate each spring force, multiplied by the number. According to the manual valve design must be greater than the pressure, pressure ratio must be large than the material allowable pressure on the line. (emphasize that here because the production process of the spring, has value of many uncertain factors, so the actual production of the spring and you cannot calculate out the same, so please choose when to consider).
YJ,is a leading largest and professional manufacturer of valves in China, Products for overseas markets covered all over the world.

1. Manufacturer Overview

Location Liaoning, China
Year Established 2007
Annual Output Value Above US$ 0.8 Million
Main Markets Mid East, Africa, Europe
Company Certifications

2. Manufacturer Certificates

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3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Tianjin; Qingdao
Export Percentage 20%
No.of Employees in Trade Department 128 People
Language Spoken: English; Chinese; Spain; Alabic
b)Factory Information  
Factory Size: Above 4,000 square meters
No. of Production Lines 2
Contract Manufacturing OEM Service Offered; Design Service Offered
Product Price Range Average