Pressure Reducing Valves

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Product Description:

Application:
A pressure relief valve (PRV) is a safety device that relieves overpressure in a vessel or system. When the pressure of vessel or system increased beyond the specified design pressure or maximum allowable working pressure, PRV will be opened automaticly to relief the overpressure for proteding the vessel or system. The PRV will be closed if the pressure reached specified design pressure so that to ensure the normal operation and protect the vessel or system.

Our Pressure Relief Valve has been designed and manuractured according to following Standard:

♦ ISO 4123-1 Safety Devices for Portection Against Excessve Pressure
♦ API STD 526 Flanged Steel Pressure Relief Valves
♦ API STD 527 Seat Tightness of Pressure Relief Valves

♦ ASME Boiler and Pressure Vessel Code Section VIII Division 1, Rules for Construction of Pressure Vessels

Peformance:
♦ Type: Conventional, Bellows

♦ Size:1" D 2"- 8" T 10"
♦ Class:150lb~2500lb
♦ Temperature:-268~+538°C

♦ Fluid: Gas, Steam, and Liquid
♦ Material: Carbon steel, Stainless steel, Alloy steel
♦ The allowable tolerance of the set pressure: ≤±3%
♦ Overpressure: ≤10%(gas)/≤20%(liquid)
♦ Blowdown: ≤10%(gas)/≤20%(liquid)

♦ Tightness: conforms to API STD 527

Features:

♦The solid nozzle is screwed into the body, which makes the maintenance easy.
♦ The shape of the disc holder has been designed to enhance the effect of the fluid thrust for an instant lift of the disc.
♦ Blowdown control is provided with adjustable nuzzle ring only.
♦ The adequate terials and clearance between disc holder and guide , spindle and adjusting screw assures disc to lift successfully.

♦ The surface of both the disc and the nozzle seat are deposited with Stellite. Excellent flatness and surface finish of the seating surfaces by precision machining and lapping assure pressure relief valve to have high degree of seat tightness and long using life.

♦ The bellows of balanced bellows pressure relief valves can not only avoid and effect of variable back pressure in the system , but also protect spring and other trim components from corrosive media.

♦ Materials are chosen carefully , and the manufacture of the spring and the bellows has strict technological process. Each of them is tested and checked strictly.

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Q:Pressure relief valve?
Check The Pressure Gauge Should Be Between 12 to 15 Psi. If it's above That Could be Expansion Tank could be overfilled. Or Feeder .
Q:Valves Knocking?
disconnect the positive battery terminal for a couple minutes. Other than taking it in to have it reset that is the most generic way to clear it. but it sounds like your timing advance system is not working.
Q:Is mitral valve anything to worry about it?
i wouldn't worry too much at the moment your cardiologist and you dr will keep a close eye on it Medication can't correct a deformity of a mitral valve. such as diuretics are available to relieve fluid accumulation in your lungs or legs, which can accompany mitral valve regurgitation. High blood pressure makes mitral valve regurgitation worse, so if you have high blood pressure, your doctor may prescribe medication to help lower it. Following a low-salt diet helps prevent fluid buildup and helps control blood pressure looking going back yrs ago they used to replase them srtaight away but the diffrent tenics now they dont do it straght away but try to sort it with medication it can be repaired if the heart is not pumping very well but this is how a repair is done if your heart is not too bad Your mitral valve consists of two triangular-shaped flaps of tissue called leaflets. The leaflets of the mitral valve connect to the heart muscle through a ring called the annulus. The surgeon can modify the original valve (valvuloplasty) to eliminate backward blood flow. Surgeons can also repair the valve by reconnecting valve leaflets or by removing excess valve tissue so that the leaflets can close tightly. Sometimes repairing the valve includes tightening or replacing the ring around the valve (annulus). This is called an annuloplasty. It's important to have an experienced surgeon perform mitral valve repair i hope you find this an help to you but as i said you dont have to worry too much yet you have a good chance with your tests you can lead a pretty good life and if need be they would do more if it came to the worst hope this as helped you
Q:are the valves in my accord bent?
hey, the same thing happened to my car ok, you can fix it but it will take you a lot of time first, you will need to remove all the components such as alternator, exhaust headers , intake and head cover since you paid to get the belt put on, go ahead and mark it with a white out pen so you know where each tick mark goes and you dont have to pay again now you will need a deep 14 inch socket and a torque wrench ( can be borrowed from autozone ) now remove the 14 bolts carefully and lift the head straight up now that you have the head out, it is a good time to replace the head gasket as well take the head to a local machine shop and have it rectified now in a closed area remove the valves and valve covers and put in new ones then its just a matter of putting everything back together I wish I could help you cuz I know it sucks when this happens But go ahead and buy the Chilton book at your local Autozone and it has step by step instructions I took me about a week the first time I did this, and i was just a novice trying to avoid big charges :)
Q:Leak around the power valve?
The kx125 actually has 3 valves in the exhaust, a main, a left-hand one and a right-hand one. Each is fitted with o-rings which require disassembly in order to be reached. This would also be a good time to clean the power valves since they tend to become encrusted with carbon deposits which interfere with their normal operation.
Q:Degreasing reed valve?
The flow of gasoline rushing past the reeds is enough to keep them clean. No degreasing is necessary. Are you sure you didn't hear de-carbonize the power valve? If so, remove the power valve and linkage from the cylinder. Remove hardened deposits with a wire wheel on a bench grinder. Clean the parts with parts cleaner.
Q:I am getting a valve job...?
The valve job may not solve the engine problems /condition.Consult your service centre and ensure you take their advice!
Q:What happeneds when you have a cloged valve?
Are you referring to heart valves? They don't really get clogged, but can get calcified and what we call stenotic (the area through which blood flows is reduced). There are ways to manage valvular heart disease with medications, but some people require surgery and valve replacement. There are mechanical and biologic heart valves that can be put in place of a damaged valve. The surgery is one of the riskier ones, because it's on the heart.
Q:what is action stop valve in the steam turbin?
This is a 'Trip and Throttle' (T T) valve that is maintained in a 'Fully Open' postion during normal turbine operation. It is maintained open by a Hydraulic Control system that, should any of many shutdown conditions occur, the hydraulic oil will be dumped to its reservoir by the operation of a Solenoid valve, actuated by the shutdown signal, and the T T valve will immediately close, stopping the steam flow to the turbine speed control steam chest in a safe manner. The valve handwheel is then operated to ensure that the valve remains fully closed until the system is ready for re-start. The valve cannot be opened again until the shutdown condition has been rectified and the hydraulic system reset to restore the oil pressure to the valve. The valve however, can then only be re-opened manually and slowly until the turbine is brought to the 'Minimum Speed Control' Governor setting. When settled down at this condition and the steam chest valves are under the control of the Governor, the T T valve is swung wide open. This latches the valve in the fully open position until another shut down occurs,
Q:high temperature valves?
google 'inconnel valve' look for foundry equipment suppliers Can you valve the gas away from whatever is hot, or is your gas at 1600 F and 100 PSI ? If so, what are you using for piping ?

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