Different type valve

the valve supplier

2007-05-16T16:56:00.000-07:00

the valve supplier

if you are interesting in the Cast Steel and the Ball valve, you can contact the CGVALVE1234. it is a supplier of the valve.
there are another Chinese suppliers of the valve.

Cast Steel Valve

2007-05-16T06:39:00.000-07:00

Cast Steel Valve

Cast Steel Valve are generally used on line size over 2 when higher pressures and temperatures demand the use of carbon or alloy steel, cast steel valves are designed and manufactured to satisfy strict requirements in order to prevent external leakage and to meet fugitive emission requirements of most customers. Stuffing box finishes of 63 to 125 RMS, stem finished of 16 to 32 RMS control of staginess and concentricity of stems, and controlled diametrical clearances between stem and gland, stem and backseat, and gland and stuffing box, all combine to guarantee consistent performance of stem seals. Gasket surfaces between bodies and bonnets are strictly controlled to fines guarantee consistent se***ng in gaskets areas.

Ball valve

2007-05-16T05:35:00.000-07:00

Ball valve

Ball valve are the three different types of rotary valves used in industrial plants. They are widely used in fluid-handling systems for flow control. These types of them are suitable for corrosive applications. They are used in detergent, pharmaceutical, chemical, rubber, pulp and paper plants, water treatment systems, textile mills and food processing plants, In general, ball valves offer many advantages when contrasted with other types. They provide superior ease of operation and can maintain and regulate high volume, high pressure and high temperature flow. Most of them offer rugged construction providing for a long service life, and a comparably low cost. Additionally, the design of the regulating element allows it to function without the complications of side loads, typical of butterfly or globe valves, and it design permits inspection and repair of seats and seals without removing it body from the line.

(CHAODA) API6Fa / API607 fire of ball valve fireproof test

2007-05-14T23:52:00.000-07:00

(CHAODA) API6Fa / API607 fire of ball valve fireproof test

CHAODA achieved the API 6Fa fireproof test and API 607 fire of big size ball valve fireproof test
CHAODA has passed the TUU API 6Fa and API 607 Fireproof Test for big size ball valve on May 10th,2006.
By continously learning the advanced processing technology and managing method overseas, CHAODA has alreadry established perfect quality management and assurance system.
CHAODA has achieved the CE Certification in 2002, API 6D Certificate in 1999, ISO 9001 Certificate in 1998, the first domestic enterprise that gained the API 600 Certification in 2003,TUV API 6Fa and API 607 Certificate for big size ball valve fireproof test in May 10th 2006 and A PI 607 Fireproof Test Certification and AZ safety certificate in 2004 .

China Anhui Qingyang Fangxing Industrial Co., Ltd

2007-05-10T06:05:00.000-07:00

China Anhui Qingyang Fangxing Industrial Co., Ltd (valve)

China Anhui Qingyang Fangxing Industrial Co., Ltd, it has two processing manufacture bases (produce 100,000 sets of casting iron valve per year and produce 5,000 tons of valves and pipeline fittings per year), There are superior machining special devices and automatic assembly line for paint and assemble, equiping the research and development centre and test device of the modernized products, thus guaranteed dependability and stability of product quality covering an area of 60000 square meters, it is assembling design, casting, processing, sale into an organic whole that specialized in producing and exporting for cast iron valves; On the basis of being passed ISO9001: 2000 (UKAS) international quality system, the " GVP " brand cast iron valve registered and produced has been appraised as " the name brand products in Anhui Province " again. Regarded as Chizhou key leading enterprise, Anhui Province Scientific and technological private enterprise and Key manufacture and export enterprise of Machinery & electronic products.
The main products as follows, cast iron (soft seated and metal seated)Gate , Globe , Check , Butterfly , Ball , Foot valve, Strainer and pipeline fittings,etc.. The products, besides carrying out China GB standard, mainly adopt advanced industrial national standards such as U.S.A. ANSI, AWWA, MSS, Japan JIS, Germany DIN, Britain BS,etc. to design, manufacture and test. At present ,the products are in good sales in many countries and areas such as the Middle East, Southeast Asia, America and Europe,etc., apply to fields such as the water supply, petroleum, chemical industry, building of the world,etc. widely, have won the customer's extensive praise and trusted.

Valve

2007-05-10T05:39:00.000-07:00

Valve

export all kinds of valves

All kinds of valves (different type valves)

2007-05-10T05:30:00.000-07:00

All kinds of valves (different type valves)

It is from SHANXI SHENGYUAN PIPES IMP.&EXP.TRADING CO.,LTD
you can check the information about the valve type in this website, and find you need and want.

High & Middle Pressure Casting Steel Valve

2007-05-10T04:54:00.000-07:00

High & Middle Pressure Casting Steel Valve

High & Middle Pressure Casting Steel Valve
It is from SHAN XI SHENGYUAN PIPES IMP.TRADING CO.LTD

valve type

2007-04-28T20:33:00.000-07:00

valve type

Although many different types of valves are used to control the flow of fluids, the basic types can be divided into two general groups, they are stop and check valves.
Stop Valves
It can be divided into four general categories: gate, globe, ball , and butterfly valves.

GATE VALVES.- they are used when a straight-line flow of fluid and minimum restriction is desired. it is so named because the part that either stops or allows flow through it acts somewhat like the opening or closing of a gate and is called, appropriately, the gate. The gate is usually wedge shaped. When it is wide open, the gate is fully drawn up into the valve, leaving an opening for flow through it the same size as the pipe in which it is installed. they are not suitable for throttling purposes since the control of flow would be difficult due to it design and since the flow of fluid slapping against a partially open gate can cause extensive damage to it. Except as specifically authorized, it should not be used for throttling.
They are classified as either RISINGSTEM or NONRISING-STEM valves. On the nonrising-stem it shown in figure 9-19 the stem is threaded on the lower end into the gate. As the handwheel on the stem is rotated, they up or down the stem on the threads, while the stem remains vertically stationary. This type of it almost always has a pointer-type indicator
GLOBE VALVES.- it is probably the most common in existence. it derives its name from the globular shape of it body. However, positive identification of a globe valve must be made internally because other types may have globular appearing bodies. it inlet and outlet openings are arranged in several ways to suit varying
BALL VALVES.- as the name implies, are stop valves that use a ball to stop or start the flow of fluid. The ball performs the same function as the disk in it. When it handle is operated to open the valve, the ball rotates to a point where the hole through the ball is in line with it body inlet and outlet. When it is shut, which requires only a 90-degree rotation of the handwheel for most valves, the ball is rotated so.
BUTTERFLY VALVES.- it is one type of which is shown in figure 9-21 may be used in a variety of systems aboard ship. they can be used effectively in freshwater, saltwater, JP-5, F-76 (naval distillate), lube oil, and chill water systems aboard ship. The butterfly valve is light in weight, relatively small, relatively
it has a body, a resilient seat, a butterfly disk, a stem, packing, a notched positioning plate, and a handle. The resilient seat is under compression when it is mounted in the body, thus making a seal around the periphery of the disk and both upper and lower points where the stem passes through the seat. Packing is provided to form a positive seal around the stem for added protection in case the seal formed by the seat should become damaged.
Butterfly valves are relatively easy to maintain. The resilient seat is held in place by mechanical means, and neither bonding nor cementing is necessary, Because the seat is replaceable, the valve seat does not require lapping, grinding, or machine work.

Introduction of flameout protector

2007-04-28T00:15:00.000-07:00

The purpose of flameout protector:
When we use the cook top, the fire may be extinct because of the wind or overflowing water. In this case, the protector may cut off gas to prevent some accidents happening because of its leakage, such as poisoning, explosion or fire. In this way, it realizes its safety protection function.
Working sketch-map of flameout protector
The first step: Piezoelectricity
Piezoelectricity
Magnet breathes the valve Thermocouple
Flameout protector (MPU)
The initial working period (ignition)
The second step: Valve-open condition
The top of the thermocouple is heated by fire, and it causes thermo electromotive force. Then it will be in series between the closed circuit and it. Outside force and the magnetic field breathe the valve and keep it open, and the gas channel is open.
The third step: Cut off gas in sudden flameout condition
When the fire is extinct because of wind or overflowing water, the thermo electromotive potential will minish quickly, and the ferrite core will come back to its original place to cut off the gas because of the loss of the spring effect.
Attention:
1. Thermocouple
1) There mustn’t be any damage or peeling off for the cover of insulation wire or insulation sleeve, otherwise it will cause short circuit, which will influence the normal operation of it.
2) The fix-up of the thermocouple must dissipate heat to reduce the heat accumulation of fixing board and thermocouple copper. This can shorten the valve-closing time when there is sudden flameout.
3) The heated part of a thermocouple must be on the top of 2-3mm. Not to put the top into the fire, otherwise it may reduce the potential and shorten its life.
2. Solenoid valve
1) Prevent it from being strongly striken in the process of installation and shipment, otherwise it may influence its normal performance.
2) Before installation, the user must check it flatly on the test clamps with some prepressing. It is not allowed to be freely-flip. This assures that magnetic material won’t be damaged by colliding, otherwise it will influence the magnetic force.
3) Clean the impurity such as aluminum or oil left on the inner wall of the stove and the surface of it.
4) Keep the good connection of the solenoid valve and thermocouple. Prevent the safety protection device from operating abnormally because of too big contact resistance.
5) The warehouse of it must be dry and ventilated and strictly prohibit extrusion.