High Performance Coventional type Pressure Reducing Valve
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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:I am looking at buying a 2001 Pontiac Bonneville and the guy said the car's check engine light says it had a problem with the EGR valve and so he bipassed it somehow. He said a EGR valve isn't needed. Is this valve very important or needed? What does it do? Thanks
- I agree with Thumpin8....98%...... Main problem is if you run Unhooked or bypassed and Running rich will cause more problems.... Will burn out your Oxygen sensor next Then fault codes will double up in your ECM PCU programs Then running rich, injectors might over presure at the wrong time. That when your fuel mileage get even worse.... Good Luck.... Pass on the car.... If he says the EGR is out most likely has 3 running problems by now Stating EGR is not needed....
- Q:give some application of varible throttle valve?
- A throttle valve allows continuous control of the rate at which some fluid moves from a region of relatively high pressure into a region of relatively low pressure. An example would be in an automobile engine, where the throttle controls the rate at which air (at or above atmospheric pressure) enters the engine's intake manifold (near vacuum when the throttle is closed.) The throttle in an automobile engine is mechanically linked to the gas pedal (in case you didn't know).
- Q:I have my head off now I need to change my valves how do I do it?
- you need a valve spring compressor then basically compress the spring remove the keepers the valve will slide right out but the keepers should never be reused and if you dont know what your doing then i would refrain from taking it apart and have a mechanic do it
- Q:How much will it cost to fix 5 broken gas valves out of 6 from my truck it's a Chevy s10 99'I live in North Carolina
- ...Gas Valves???....WTF....
- Q:My house has hot water baseboard heat. In the basement, there is a wood burning stove (now it is like a radiator) that has the pipe system going through it Between the pipe in and the pipe out is a valve. Does it have to be opened or closed all the way? There is no other way to control the heat in the basement I was thinking of opening the valve half way, but I do not want to destroy the valve.
- you can definitely close the valve half way. Most gate valves or ball valves i install aren't fully open because if its completely open overtime that valve can seize up and never close again.
- Q:My third valve is always sticking, despite the fact that I oil them thoroughly every other day. It scrapes the sides of the case when I take it out/put it in, it's almost as if the valve is too big for it. Often times it will stick and I'll have to unscrew it and physically pull it out for it to be functional again.I've inspected it, and the inside looks just like the others which are fine. I've tried washing it, oiling it, and putting a trace amount of vaseline on it. What is the problem?
- Have you tried cleaning the valve casing (what the valve moves in)? If not, you can use a clean cloth that won't leave fibers in there, or a valve casing brush (couple dollars at the music store) to clean the inside. Many times dirt builds up at the bottom of the valve casing where it's supposed to and the valve eventually gets stuck in it. Also, like the poster above said, the plastic/metal guide could be getting caught. You can use slide grease to lubricate the slot in the top part of the valve (not the casing) where the guide moves. Just don't get any on the piston part of the valve. If all else fails, it is possible that the valve was not honed correctly at the factory and a professional will need to fix it.
- Q:Ok. I have to ask cause I have been in hospital all weekend after having a moment on saturday when my heart decided to start racing. Woke up 4.30am on saturday morning cause of blood test which kinda showed I could have had a heart attack which was scarey and though I was discharged today I got told I had a leaking aortic valve. What does this mean and what is going to happen. I am honestly really worried cause it cant be good
- It just means that one of the valves in your heart doesn't completely close. So when your heart pumps blood it doesn't do it as effectively. I have a leaky mitral valve and I have no symptoms. I just have to take antibiotics anytime I have dental work done. Bacteria from your mouth like to mess up your valves if they are already leaky. But it almost never happens. It's just a precaution. You really need to talk to your doctor about what he found. He needs to explain whether it's serious or nothing to be worried about.
- Q:instead of just buying a replacement, is there an easy way off the valve to check if it's still good?
- dio, yes, if your sprinkler control valve is not opening a zone valve in the automatic mode, then manually turn the solenoid on the zone valve counterclockwise, it sprinklers come on , then you have confirmed a bad solenoid. these can be purchased seperately or another oprtion is a complete zone valve dio, well, if water is flowing thru then the solenoid is not sealing on the zone valve body itslef. unless there is debris between the solenoid washer and zone valve body, then sounds like a bad solenoid...
- Q:Its a 1981 Monte Carlo SS with a GM 350 crate motor. There is oil all over the heads valve covers. It isn't my car, but I was thinking of buying it..Thank you.
- It needs a new valve cover gasket which is cheap and easy to replace. Gaskets dry up and break from heat and age. Then all that sloshing oil underneath gets out. Loose valve cover bolts can also be a problem. And the valve cover may have been damaged by someone over-tightening the bolts. This thing is a 100 in human years. What happened to the valve cover gasket (rot from heat and age) is just one example of what has probably happened to many things on it - other gaskets, seals, hoses, tires and belts. Have seller prove he did a timing belt change when needed. It needed that at about 100k or 11 years ago. If seller can prove it, then guess what? It now needs another timing belt.
- Q:what are the best aorta heart valves. mech. or animal.
- It really depends on the age of the recipient. Mechanical valves last much longer but require blood thinner treatment for life to prevent strokes which has risks and is a pain and most would like to not take blood thinngers. Biological made from pig and cows and cadavers mean people can go back to their lives with no blood thinners. But, they wear out and last depeding around 10-15 years. Most do not want another open heart surgery. It is a conversation between the surgeon, cardiologist, patient and family. A young person, the no-brainer is mechanical if they can maintain blood thinner compliance. An older person would want a tissue valve with less chance of outlving it and requiring another openheart surgery. And perhaps at an age where the surgery wouldnt be done. So the best choice is based on age and what the patient wants. Arnold Schwarnegger chose a tissue valve even though it will wear out before he dies statistically and require a replacement but he didnt want to be on blood thinners. Putting a tissue valve in a 20 year old, then replacing it at 35 with another, then again at 50 and then at 65. Doesnt make sense and the scar tissue from it all. If that doesnt make sense A mechanical valve in an 80 year old and then the risk of a blood thinner and bleeding issues doesnt make sense either. Hope that makes sense
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High Performance Coventional type Pressure Reducing Valve
- 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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