High Performance Safty Valves
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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: my inflatable kayak has a self bailing drain valve. it says to close the valve in lakes and streams to stay completely dry and open it in oceans or mild whitewaters.whats the point of this valve? i WANT water to come in??
- Self Bailing Kayak
- Q: The pump is working fine on the presta valve on my back tire, but it is not working on the other presta valve. It seems like the the presta valve isn't sticking out far enough out of the tube for the pump to be able to lock in on it. What could be causing this?
- If is it a deep V wheel you need a tube with the proper extension for the value, or a presta valve extender. Next time you replace the tube measure how long the value is in mm and get a tube with a longer valve stem.
- Q: Hi! I have three brass gate valves surrounding a filter for my well. They are starting to show some signs of leaking. I realize that I might need to replace them... or, there seems to be a couple of places where they could be adjusted. Is this something I should do? Or, if I need to replace them, can you help me put a name to this type of valve so I can have an easier time tracking them down ?
- Leaking Gate Valve
- Q: Exactly what is an EGR valve where is it located?
- In todays engines , fuel economy is a big issue. An exhaust Gas valve will do the following. At cruise speed, when there is not as much load on the engine the fuel mixture will lean out to save on fuel emissions, but the combustion temp will rise with a lean mix, so to control this the egr valve will throttle exhaust gas into the intake air leaning out the air and lowering the combustion temp. exhaust gas will not burn again! its burnt already, mechanical valves were easy to check with a vacum pump. but newer valves are controled by the engine control system and you should consult your service manual for proper inspection procedures
- Q: what exactly is thc pcv valve and what does it do
- PCV stands for positive crankcase ventilator all engines need this device to work properly
- Q: List the valves that control the flow of substances through the alimentary canal. I can't find this answer?
- The gastrointestinal tract is thus equipped at critical junctures with a number of muscular valves, or sphincters , which, usually under the direction of the autonomic nervous system, can regulate the movement of food through the digestive tube. Another function of a sphincter is to prevent backflow of partially digested food. The muscles of a sphincter are often described as “pursestring muscles” because the way they draw together the sides of the digestive tube is roughly similar to drawing up the strings of a purse. The first of these pursestring valves occurs at the cardia , the opening where the esophagus meets the stomach, and is called the cardiac sphincter , from its location almost directly in front of the heart. (But there is no physical connection.) Another important muscle ring is the pyloric sphincter , at the opening called the pylorus , located at the other end of the stomach, at the connection between stomach and small intestine. The release of waste from the rectum is controlled, partly voluntarily, by an anal sphincter , located at the anus , which marks the end of the tract.
- Q: I am having a leaky valve is that normal? the doctor said that it is normal what do i do?
- If its not serious, you should have a normal heart rate. My heart rate has always been normal, and i have Aortic Regurgitation (leaky valve), Aortic Stenosis, Bicuspid Aortic valve, and a slightly Enlarged Aorta and my Cardiologist For the last 15 years, has said i have a normal heart rate. So your heart rate should be normal.
- Q: My check engine light is on in my 1999 Toyota Camry XLE...I went to autozone and they told me it was my egr valve BUT they did not tell me if it need to be cleaned or replaced. How can I tell if it needs to be cleaned or replaced
- its not an expensive part a new one will help mpg
- Q: Why can't i start my valve?
- makes no sense try again
- Q: i have been told that a bad EGR valve (exhaust gas recirculation valve) could cause a car to buck or hesitate in mid range speed at low rpms, thats what my car is doing. i work at autozone and i used our code reader and there was a code that stated EGR flow malfunction anyone else have this problem ever? please help me! i dont wanna spend the $120 if i dont need to!
- i had one go bad on my 95 saturn, it sometimes ran rough at a steady speed and stalled at stoplights
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High Performance Safty Valves
- Ref Price:
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