Full Welded Underground Extension Stem Ball Valve
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 1 pc
- Supply Capability:
- 1200 pc/month
OKorder Service Pledge
OKorder Financial Service
You Might Also Like
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.
- Q: DN20 copper ball valve with large PPR converter connector
- See how big your tube is. 20 tubes are straight with 20*1/2 internal teeth, and 25 tubes are straight with 25*1/2 internal teeth
- Q: Copper ball Q11F-20T is what mean?
- Q ball valve1 internal thread1 throughF PTFE soft seal20=20PA=2.0mpa pressureT copper material
- Q: What's the difference between angle valve and ball valve?
- Ball valve, as its name suggests, is the shape of a ball valve, water from the hole in the middle of the ball out, usually the handle to control the opening and closing. But the ball valve can only be switched on and off, and can not adjust the flow. To put it plainly, you take it half open and half closed, and its flow is not about 50%, and fluctuates greatly. In addition, if the ball valve will be half closed, it will damage the ball valve, greatly shorten its life. Ball valve is mainly used for heating hot and cold water inlet pipe.
- Q: The difference between a cricket valve and a constant pressure valve
- Ball valve for ball ball column shape and called, is mainly to be closed, and often switch when the fluid flow control to throttle function and design, is the main characteristic of effective throttling, to minimize and reduce the phenomenon of drawing valve and valve seat dip (wash) inhibition, but because of the seat is parallel to the line, change the flow of fluid through the valve seat will be in class.
- Q: What is the difference between ball valve and butterfly valve?
- The butterfly valve consists of valve body, valve seat, valve plate, valve rod, all parts are a significant drain on the outside, one eye can see; and the ball valve is composed of a valve body, the valve core (a round ball), valve rod, valve position is in the valve body inside, the naked eye can see only a part, so the sealing performance of the ball valve than the butterfly valve; butterfly valve structure is relatively simple, generally with low pressure valve, high pressure valve can reach 64 kg. The ball valve structure is relatively complex, more resistant to high pressure, the ball valve up to 100 kg.Butterfly valves are divided into soft seal and seal, soft seal butterfly valve is generally perpendicular to the center of the plate, is the valve plate, valve seat, valve stem is the center position of the highest temperature soft sealing butterfly valve is 150 degrees below the pressure of 16 kg, hard seal butterfly valve can be divided into single eccentric, double eccentric, three eccentric, we generally use more than three eccentric, because the three eccentric according to its structure, better sealing performance, hard seal butterfly valve pressure is 64 kg; the valve can also be divided into soft seal and seal, soft seal valve maximum temperature is below 280 degrees, the pressure is on 64 kg, hard seal ball valve temperature can reach 425 degrees below the pressure below 100 kilograms. Shanghai Sino US valve for your answer, for reference.
- Q: Switch valve type, switch valve, ball valve or butterfly valve is good
- Ball valve and butterfly valveBall valve is used to regulate and control fluid, strong shear force between the metal seat seal V type ball valve V type ball core and welding hard alloy, especially suitable for containing fibers, small solid particles and other media.Butterfly valve, also known as shutter valve, can be used to control the air, water, steam, a variety of corrosive media, mud, oil, liquid metal and radioactive media and other types of fluid flow. On the pipeline, mainly from cutting and throttling.
- Q: Calculation formula of ball valve flow
- The sectional area of diameter of DN15, DN25 and DN50 is respectively:DN15:15*3.14/4=176.625 mm, 0.0177 square decimeter.DN25:25*3.14/4=490.625 mm, 0.0491 square decimeter.DN50:50*3.14/4=1962.5 mm, 0.1963 square decimeter.A pipe flow rate of V=4 M / s V=40 decimeter / s, and the 1 liter =1 cubic meter, the pipe flow respectively (cross-sectional area multiplied by the velocity):DN15 pipe: flow Q=0.0177*40=0.708 L / sec,It's 2.55 cubic meters per hour.DN25 pipe: flow Q=0.0491*40=1.964 L / sec,It's 7.07 cubic meters per hour.DN50 pipe: flow Q=0.1963*40=7.852 L / sec,It's 28.27 cubic meters per hour.Note: a flow rate must be given to calculate the flow rate, which is calculated in accordance with 4 meters per second.
- Q: Pneumatic two stage ball valve principle
- By two pneumatic actuators and ball valve or butterfly valve, the piston stroke change additional cylinder, actuator and valve angle is stopped at a predetermined angle (45 degrees -90), so the valve flow can be adjusted. This device by two solenoid valve control valve flow. As the actuator uses the rapid exhaust and throttling function, so that the two segment ball valve has excellent switching characteristics. Slow open and close valve velocity, the fluid in the pipeline to change smoothly, not because of the impact of water hammer in the flammable fluid explosion, nor system flowmeter and other instruments damaged by the impact of the flow, it is suitable for the industries of petroleum, chemical industry, light industry, national defense and other control systems, especially suitable for oil storage and transportation system.
- Q: What does "q341" and "q347" mean?
- Q341 is a turbine driven flange straight through floating ball valveQ347 is a turbine drive flange through fixed ball valveShintex valve0577Eight thousand six hundred and ninety-oneSeven thousand five hundred and sixteen
- Q: DN20 pressure 6000PSI, one piece of thread on the threaded, full diameter ball valve body length and flow hole to how much?
- Supplement: the above mentioned is just a pure design, such as the novice to do the design, checking and calculating of the general will, in fact in the reality of the design, the valve products have been very mature, as you say these are size, can refer to the same type with the specifications of the product parameters so, the more accurate calculation, experience is more important than calculation.
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
| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period |
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 |
Send your message to us
Full Welded Underground Extension Stem Ball Valve
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 1 pc
- Supply Capability:
- 1200 pc/month
OKorder Service Pledge
OKorder Financial Service
Similar products
Hot products
Hot Searches
Related keywords
