tupian
2014年2月21日星期五
Ball valve sealing principle titanium plate
Sealing principle ball varies according to their structure . Common valve structure can be divided into floating ball valve and fixed ball valve two categories. The ball valve stainless steel ball float freely supported on the seat ( see Figure 1-1 ) . Under fluid pressure , the ball in the flow direction of displacement produced , making it more closely in contact with the valve seat sealing surface , i.e. the plastic padlock security seals surfaces than the pressure increases, the seal formed in one side ' while the valve before the valve seat sealing surface than the pressure is reduced accordingly , often do not guarantee seal. Central Fujian fixed balls , sphere having upper and lower shaft, the bearing is fixed in the sphere .
Thus , the position of the sphere fixed : displacement fluid pressure can not make it . However , it is a floating valve , the spring means are pressed against the ball or semi- fluid , to establish bolt security seal pressure . Thus fixed ball stainless steel ball valve can be designed according to the requirements of three seal cable structure : front seat sealing valve , the valve seat seal , front valve seat seal .
Ball by Ball Installation Category:
By Sphere installation, stainless steel ball valves can be divided into four types of roof -mounted , bottom -mounted , side-mounted and mounted and so inclined . Which is essentially a bottom -mounted ball busy with the same top-mounted , due to mounting is not convenient , not much use , it does not introduce separately. For side-mounted stainless steel ball valve , according to different occasions and diameter size , body style there are two integral parts, and split and currency dyad and triad points.
Ball Classification and Features titanium plate
Ball Ball and O- V-ball points.
O type ball floating structure , core for precision castings, hard chrome plated exterior , seat with PTFE material , the same stream crossing and pipeline diameter , flow capacity is great, the flow resistance is extremely small, closed without leaks, generally make the switch valve, especially for high viscosity , fibrous , granular media ; V -ball fixed structure, has medical titanium bar a V -notch ball core, proportional control can be achieved , approximately equal percentage flow characteristics .
Choice of pneumatic or electric, pneumatic valve and were composed of electric valve , depending on process equipment , including pneumatic valve as required to achieve the proportional control valve with positioner, electric valve as required to achieve the selected electronic proportional control electric actuator or servo amplifier with and surgical implant titanium.
From the material , can be divided into : carbon steel ball valves, stainless steel ball valves 304 , 316 and copper ball valve.
On with the application , can be divided into : high pressure and low pressure ball valve. Pressure valve : mainly used in oil, gas, hydraulic oil , construction machinery and other industries. Low Ball: mainly used in the medium of water and other non -corrosive piping.
O type ball floating structure , core for precision castings, hard chrome plated exterior , seat with PTFE material , the same stream crossing and pipeline diameter , flow capacity is great, the flow resistance is extremely small, closed without leaks, generally make the switch valve, especially for high viscosity , fibrous , granular media ; V -ball fixed structure, has medical titanium bar a V -notch ball core, proportional control can be achieved , approximately equal percentage flow characteristics .
Choice of pneumatic or electric, pneumatic valve and were composed of electric valve , depending on process equipment , including pneumatic valve as required to achieve the proportional control valve with positioner, electric valve as required to achieve the selected electronic proportional control electric actuator or servo amplifier with and surgical implant titanium.
From the material , can be divided into : carbon steel ball valves, stainless steel ball valves 304 , 316 and copper ball valve.
On with the application , can be divided into : high pressure and low pressure ball valve. Pressure valve : mainly used in oil, gas, hydraulic oil , construction machinery and other industries. Low Ball: mainly used in the medium of water and other non -corrosive piping.
Fixed ball characteristics and titanium plate
1, two obstruction and discharge function : Fixed ball valve spring preload floating seat when the valve is either fully open or fully closed state , on the downstream side of the valve seat to block fluid , the valve body cavity left by the discharge valve excretion .
2 , automatic pressure relief function: the valve body cavity stays medium temperature caused when abnormal pressure , without going through the safety valve, which can function alone automatic pressure relief valve , this valve to ensure safety in the transportation of liquid medium is very important .
3 , fire safety structure: Valves are equipped with fire safety features, its design, manufacture and API6FA were followed API607 specifications.
1 , sealing grease emergency ambulance : As media objects or accidental fire caused seat barrier security seals failure , grease valve provides a quick connection to the grease gun , pump inlet seal fat quickly and easily injected into the valve seat sealing parts , ease leak.
2 , reliable stem seal and low operating torque: In addition to setting the standard container security seal rings , but also set up the packing gland "O" -ring, double sealed to ensure the reliability of the valve stem seals ; additional graphite packing and seal fat injection to stem the leak after the fire to a minimum. Stem sliding bearings and thrust bearings easy operation of the valve .
3 , full bore or reduced bore : may need to use full bore or reduced bore structure. Full Bore Valve flow aperture is consistent with the internal diameter of the pipeline , the pipeline for easy cleaning .
4 , the stem can be lengthened : required installation or operation of the valve stem can be lengthened . Extensions ball , especially for city gas pipeline laying underground and other needs of the occasion. Long stem size is determined by customer needs .
5 , flexible operation : using a small friction coefficient and excellent self-lubricating bearing seat and a valve stem , the valve is greatly reduced operating torque . Therefore, even in the case of not providing a adjustable length plastic seal grease , can be flexible and comfortable for the long-term operation of the valve .
2 , automatic pressure relief function: the valve body cavity stays medium temperature caused when abnormal pressure , without going through the safety valve, which can function alone automatic pressure relief valve , this valve to ensure safety in the transportation of liquid medium is very important .
3 , fire safety structure: Valves are equipped with fire safety features, its design, manufacture and API6FA were followed API607 specifications.
1 , sealing grease emergency ambulance : As media objects or accidental fire caused seat barrier security seals failure , grease valve provides a quick connection to the grease gun , pump inlet seal fat quickly and easily injected into the valve seat sealing parts , ease leak.
2 , reliable stem seal and low operating torque: In addition to setting the standard container security seal rings , but also set up the packing gland "O" -ring, double sealed to ensure the reliability of the valve stem seals ; additional graphite packing and seal fat injection to stem the leak after the fire to a minimum. Stem sliding bearings and thrust bearings easy operation of the valve .
3 , full bore or reduced bore : may need to use full bore or reduced bore structure. Full Bore Valve flow aperture is consistent with the internal diameter of the pipeline , the pipeline for easy cleaning .
4 , the stem can be lengthened : required installation or operation of the valve stem can be lengthened . Extensions ball , especially for city gas pipeline laying underground and other needs of the occasion. Long stem size is determined by customer needs .
5 , flexible operation : using a small friction coefficient and excellent self-lubricating bearing seat and a valve stem , the valve is greatly reduced operating torque . Therefore, even in the case of not providing a adjustable length plastic seal grease , can be flexible and comfortable for the long-term operation of the valve .
Fixed ball characteristics and titanium plate
1, two obstruction and discharge function : Fixed ball valve spring preload floating seat when the valve is either fully open or fully closed state , on the downstream side of the valve seat to block fluid , the valve body cavity left by the discharge valve excretion .
2 , automatic pressure relief function: the valve body cavity stays medium temperature caused when abnormal pressure , without going through the safety valve, which can function alone automatic pressure relief valve , this valve to ensure safety in the transportation of liquid medium is very important .
3 , fire safety structure: Valves are equipped with fire safety features, its design, manufacture and API6FA were followed API607 specifications.
1 , sealing grease emergency ambulance : As media objects or accidental fire caused seat bolt seals failure , grease valve provides a quick connection to the grease gun , pump inlet seal fat quickly and easily injected into the valve seat sealing parts , ease leak.
2 , reliable stem seal and low operating torque: In addition to setting the standard pull tite seals rings , but also set up the packing gland "O" -ring, double sealed to ensure the reliability of the valve stem seals ; additional graphite packing and plastic strap seals fat injection to stem the leak after the fire to a minimum. Stem sliding bearings and thrust bearings easy operation of the valve .
3 , full bore or reduced bore : may need to use full bore or reduced bore structure. Full Bore Valve flow aperture is consistent with the internal diameter of the pipeline , the pipeline for easy cleaning .
4 , the stem can be lengthened : required installation or operation of the valve stem can be lengthened . Extensions ball , especially for city gas pipeline laying underground and other needs of the occasion. Long stem size is determined by customer needs .
5 , flexible operation : using a small friction coefficient and excellent self-lubricating bearing seat and a valve stem , the valve is greatly reduced operating torque . Therefore, even in the case of not providing a sealing grease , can be flexible and comfortable for the long-term operation of the valve .
2 , automatic pressure relief function: the valve body cavity stays medium temperature caused when abnormal pressure , without going through the safety valve, which can function alone automatic pressure relief valve , this valve to ensure safety in the transportation of liquid medium is very important .
3 , fire safety structure: Valves are equipped with fire safety features, its design, manufacture and API6FA were followed API607 specifications.
1 , sealing grease emergency ambulance : As media objects or accidental fire caused seat bolt seals failure , grease valve provides a quick connection to the grease gun , pump inlet seal fat quickly and easily injected into the valve seat sealing parts , ease leak.
2 , reliable stem seal and low operating torque: In addition to setting the standard pull tite seals rings , but also set up the packing gland "O" -ring, double sealed to ensure the reliability of the valve stem seals ; additional graphite packing and plastic strap seals fat injection to stem the leak after the fire to a minimum. Stem sliding bearings and thrust bearings easy operation of the valve .
3 , full bore or reduced bore : may need to use full bore or reduced bore structure. Full Bore Valve flow aperture is consistent with the internal diameter of the pipeline , the pipeline for easy cleaning .
4 , the stem can be lengthened : required installation or operation of the valve stem can be lengthened . Extensions ball , especially for city gas pipeline laying underground and other needs of the occasion. Long stem size is determined by customer needs .
5 , flexible operation : using a small friction coefficient and excellent self-lubricating bearing seat and a valve stem , the valve is greatly reduced operating torque . Therefore, even in the case of not providing a sealing grease , can be flexible and comfortable for the long-term operation of the valve .
2014年2月20日星期四
Wrought Nickel-Titanium Shape Memory titanium plate
Standard Specification for Wrought Nickel-Titanium Shape Memory Alloys for Medical Devices and Surgical Implants
1.1 This specification covers the chemical, physical, mechanical, and metallurgical requirements for wrought nickel-titanium bar, flat rolled products, and tubing containing nominally 54.5% to 57.0% nickel and used for the manufacture of medical devices and surgical implants.
1.2 Requirements are for mill product titanium standard parts, measuring 6 to 130 mm (0.24 to 5.12 in.) Diameter or thickness, in its annealed condition.
1.3 The values stated in SI units are to be regarded as the standard. The values given in inch-pound units are for information only.
1.2 Requirements are for mill product titanium standard parts, measuring 6 to 130 mm (0.24 to 5.12 in.) Diameter or thickness, in its annealed condition.
1.3 The values stated in SI units are to be regarded as the standard. The values given in inch-pound units are for information only.
medical titanium plates
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Titanium standard parts into a variety of applications need to be machined . Titanium standard parts processing methods have cutting , vacuum casting , etching and spark superplastic forming. Due to the ever-changing form of denture parts and vary, so the vacuum casting is the best way to present
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Titanium and titanium alloy materials in the plant at room temperature forming, shaping force due to the small amount of deformation limit and great resilience , which gave the manufacturing process has brought a lot of difficulties , especially in the rebound to make the entire amount of labor hand injury large batch production can not meet the requirements . Hot
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medical titanium plate
The company is the production of non-ferrous metals titanium whole distributors and integrated device manufacturers . The main products : titanium tube, titanium, titanium clad steel plate , titanium tube, titanium standard parts , titanium sintered filter tubes , nickel tubes, plates, titanium tube titanium metal equipment heat exchangers, condensers , evaporators, reaction of titanium kettle , titanium / steel composite reactor, polymerization reactor, titanium tank, plate heat exchanger , titanium coil heat exchanger, titanium tower , titanium container , titanium mixers, titanium filter, titanium cathode roller , titanium species plate , medical titanium plate electrode , titanium basket, titanium rack, titanium tanks, titanium a second class pressure vessel . Our products are widely used in salt, chemicals , petroleum , pharmaceuticals , dyes, electroplating, environmental protection and other industries.
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