High Performance WC6 Safety Valve For Steam Service
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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.
- Q: Liquid propane leaving the reflux pump of a distillation column flows through a 3.5 in ID pipe at a flowrate of 90 lbm/s. There is a flowrate control valve in this line, and it is set such that the pressure drop across the valve (delta)P=15 lbf/in^2. Upstream of the valve , the pressure P1=18 bar and the temperature T1=310 K. Assume there is negligible heat transfer with the surroundings and that the density of the liquid does not change significantly.a) What is the kinetic energy change across the valve?b) What is the enthalpy change across the valve?c) What is the temperature change across the valve?d) What is the entropy change across the valve?
- If there is NO change in the density of liquid propane as it passes through the valve, and if the size (area) of the pipe upstream and downstream of the valve is the same, then a) there will be no change in the velocity of propane, hence there will be no kinetic energy change. b) this is a process of throttling, with no change in kinetic energy, hence there is no change in the enthalpy. c) temperature change can be determined using the detailed property table of propane, but if it is an almost-incompressible liquid, then this too, will be negligible. d) dh = T ds + v dp. Since there is no change in h, integrate this along a constant h line from inlet to exit (upstream to downstream) and you will get ds = -(v/T) dp. Since p reduces from inlet to exit, the change in entropy will be positive. This is as expected. If we assume density (=1/v) and temperature (T) to remain constant, then the change in entropy will be s_downstream - s_upstream = (p_upstream - p_downstream) v /T.
- Q: Hey,I have a 1/2 diameter pipe and I want to place a valve on it. I need a valve that can be electronically controlled so the water flow can be started and stopped on demand. I plan to achieve this by connecting the valve to a 'relay' that will be connected to an ardunio or PIC that will programmed to determine when the water is to flow or stop. That make sense? So my question does anyone know a suitable type of valve? I've no experience with valves and there are so many types so I don't know where to start!I would be grateful for any suggestions :)Thanks!
- I okorder /
- Q: Last year an echo revealed severe aortic valve regurgitation with low ef of 37 but ecg was normal. i am 36 yrs old. I have noticed that i often have chest pain when i lie on my left (especially after a heavy drinking or if my bp is high) but the pain subsides when i lie on my right or back. Is it possible that my aortic valve only leaks when i lie on my left side, if so, can I continue living a normal life without needing valve replacement surgery if avoid lieing on my left side. or i'm i fooling myself, is the heart damage progressing silently?
- Hello, You don't tell us *why* your doctors think, you developed this problem with your aortic valve in the first place? Has there been any infection of the valve with germs, (bacterial endocarditis)? Did you have Rheumatic Fever as a child? Were you born, with stenosis or regurgitation of your aortic valve? Do you have abnormally early, clogging-up of your artery-linings with cholesterol?
- Q: Just wanted to know what the significance of the number of valves is?I know that theres valves for intake and exhaust if i'm correct.if there is four i'm guessing its 1 for air and 1 for fuel if its fuel injected. and 2 for exhaust?are there bikes with 3 valves or more than 4 valves and why?and a basic carburated 2 stroke just has an intake from the carb side and then an exhaust.please give me more info and let me know if i'm correct or not.
- This Site Might Help You. RE: 4 Valves per cylinder? Just wanted to know what the significance of the number of valves is? I know that theres valves for intake and exhaust if i'm correct. if there is four i'm guessing its 1 for air and 1 for fuel if its fuel injected. and 2 for exhaust? are there bikes with 3 valves or more than 4...
- Q: according to my study only indurial gate valves have both rising and non rising stem through handwheel and it seems that it doesnot apply to golbe valve and globe valves are only non rising stem. i wanted to know if this is right
- so non rising stem valves are usually used on only clean liquids long of stem is the same
- Q: We have a main gas valve outside and there's a gas valve by out air condition and we want to know which way if off and on .. Does anybody know !!!
- If it is at a right angle to the gas line, and will travel no farther it is off. In other words, if you can turn it halfway, and it stops, it's off. (that's the way mine is, but don't take my word for it.)
- Q: Anyone know what causes a heart valve to leak? I had surgery to repair mine (mitral) a few months ago, and now I have a very mild leak.
- well maybe the sugeons didnt fix it right or they cut and accedental hole... good luck in the future
- Q: A friend of mine is having open-heart surgery next week to replace a heart valve. He needs to decide whether he wants a mechanical valve or a biological one. He is 28 years old. Which would you choose and why?
- Always a tough call. You might want to see if you can find a copy of Lewis Grizzard's book, They Tore Out My Heart and Stomped That Sucker Flat, which was about both his aortic valve and his ex-wives. Unfortunately, he died from surgical complications with I think his third valve replacement, but you needn't tell your friend that part.
- Q: ok...i want to find a valve that controls air pressure so i can let it out in 2 different ways for my pneumatic potato gunwhat websites or stores sell this (not home depot)
- You might have to register on the site to order online. It is free. You can call them and order the catalog. It is free also. Hope this helps Email me if you want me to look it up in my catalog. Don't break any windows. Wingman
- Q: I wanted to clean my 2005 accord ex 2.4 idle valve. I'm not sure where it's at any pictures or websites ? And will cleaning it make any difference
- Probably won't help. Idle Air Control valves are blamed probably ten times as often as they are at fault in Honda engines. It is mounted on the side of the throttle body and has a connector with wires instead of hoses. You don't mention why you are interested in the IAC valve, but if it is because of idle hunting (revving between about 500 rpm and 1500 rpm smoothly and rhythmically), a bubble in the coolant is by far the most common cause. If the coolant is changed and not bled the normal idle speed can't get hot coolant to the Fast Idle Thermo valve (FITV) so it figures the engine is cold and the valve opens to raise the idle. That raises the coolant to the FITV, which then decides the engine is warm so the valve closes, dropping the idle speed, over and over. Burping the coolant, by opening the bleed nipple on top of one of the radiator hose housings at the engine half a turn until a steady stream of coolant comes out, should stop that. Do it with the engine cold.
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High Performance WC6 Safety Valve For Steam Service
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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