Pressure Reducing 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:I'm looking for a way to fix my noisy piston valves on my full sized Yamaha tuba. It makes a loud, metallic clang whenever any of the valves are pressed or released. Thanks!: right this is what I did My truck is 2003 GMC sierra with approximately 112.000 miles that develpoed a noisy lifter. I asked around and offered a prior employer tip. This truck has the vortec 5.3 which I easily have study different posts that those autos tend to boost this equivalent style challenge. Pour a pair of quart of gas into your oil,particular I stated gas, run for 30-40 5 seconds. close off the motor this would possibly not restoration the challenge yet. . upload one extra quart of gas, permit it run 30-40 5 seconds close off the motor. permit stand 40 5 minutes to an hour The gas will injury down the gunk like no diverse. Drain oil and eliminate the filter out. What I did next replace into as quickly as positioned the oil plug in purely and added a pair of a million/2 of gallon of the pink potential degreaser down the hatch and permit that sit down for a stable hour. Then I drained it and guy did some nasty stuff come out. With the plug out I dumped one extra quart of gas down the hatch lower back to flush it. eliminate cap, dipstick and shelter the plug out and permit it breath for a staggering hour I switched to Valvoline synthetic mixture 5w-20 from pennzoil classic 5w-30 and have been given a wix filter out from a puralator. I stay in florida so I are actually not finding for the better weight oil. positioned the pug and filter out in, introduced the oil and ran the engine, in no longer as much as 30 seconds the noise replace into as quickly as long previous. I permit it run for slightly, close it down, then began the engine as quickly as extra in all probability 3 hours later The motor is whisper quiet, It hasn't run this quiet in years. wish this enables. i'm no longer particular if this attitude would artwork on diverse engines so use your judgement

Q:So i was looking for car parts and i was using my favorite website, and i was looking at turbos which are wicked costly. But i saw some blow off valves which i have heard about before. But i was wondering if you need a turbo in order to have a blow off valve installed into your car. And if you don't my next question would be is it hard to put one in and how?? Thank you for your time..: A blowoff valve goes onto your intake or the piping from your turbocharger to make sure that you dont run to much pressure they are adjustable to whatever pressure you desire. Usually people running a positive displacement blower or a turbochargers run them. That being said I'm sure that you could put one on your car but without a power adder it would never blow off. Except in the case of a intake manifold overpressure such as a backfire.

Q:my check engine light tells me that i need an egr valve, if i install one will that cut the light off????: Possibly, unless it's a Ford. A lot of the time on a Ford, it's the DPFE sensor that sets an egr code. Or do you mean ther is no egr valve on the car? Some GM and Chrysler engines were built with and without egr valves, (2.2 GM, 3.3 Chrysler). If someone replace the engine, you will need to get the parts required for installing an egr valve. In the case of the 2.2, it means a different cylinder head and exhaust manifold, the Chrysler 3.3, a different intake and rear exhaust manifold.

Q:Does anyone out there have any tech info or schematics for state of the art camless engines that run pneumatic valve train?: i don't!!! LOL LOL

Q:My electric water heater relief valve keeps opening 30 min after turning it on.I turned it down to 90F and 30 min later overflow again.when power is off no leak with the water on uld the valve be opening because of over heating?I know it does'nt leak with cold running through it.: the city could have put in a verify valve on the meter to maintain water out of your equipment from backing up for some unknown reason and contaminating the municipal water furnish. whilst the chilly water interior the heater receives heated from fifty 9 to one hundred twenty five levels it expands somewhat. perhaps a cupfull. without place to pass, it opens the relief valve. you would be able to ought to deploy a style tank close to your water heater. that's a metallic tank a pair of gallon in length with a bladder interior packed with air. i don't have one, yet I word a brilliant variety of properties have them now. additionally decrease the drain so which you comprehend it relatively is not plugged or leaking.

Q:where can i get my Idle air control valve cleaned on a 84 celica supra: There should be a VECI map under your hood that shows you where this valve is located. In a pinch, find a Haynes manual or a Robert Bentley manual that has pictures in it. If you can find the valve, you can clean it yourself with a can of spray Gum-out. While you're at it, clean the throttle body and PCV valve, too. Hopefully, you have had the good sense to have used only genuine Toyota coolant in this car, since Toyota heads require a special coolant formulation to prevent aluminum deterioration. More older Japanese engines are ruined with improper coolant than I can write about here. Sensor damage is caused as well! You might take your car to the Toyota dealer and ask them to clean out the valve for you. Since this is only a 2 minute job, they just might do it for free. If they do, at least offer to tip the technician under the table. Be sure to power wash your entire engine bay before you take the car in. They will LOVE you for this!!!

Q:1990 Pontiac Sunbird 2.0L Fuel Injected has EGR Valve, I can suck and blow through the hose connected to it, an I supposed to be able to do this, or not...? It looks old, like it's been on the car forever...: You can do a simple test of the valve - take a clean hose into the input - suck on it and place your tongue against the hose - it should hold vacuum and your tongue for about a minute. If it doesn't, replace the valve. They can also get clogged with deposits that can cause problems. For one that old, you may do well to just replace it.

Q:A diabetic patient undergone CABG having aortic valve problem.Cardiologist suggested valve replacement: Today, there are two types of prosthetic valves used for replacement: mechanical or tissue. Mechanical Valves A mechanical valve is carefully designed to mimic the native heart valve. It has a ring, like your own natural heart valve, to support the leaflets. Like your own heart valve, the mechanical valve opens and closes with each heartbeat, permitting proper blood flow through the heart. To prevent any blood clots from developing on the valve, which can cause complications, a mechanical valve replacement requires you to take anticoagulation medicine (blood thinners) daily. The dosage of this medication is different for each person, so you will be closely monitored to make sure you are on the correct dosage for you. Regular blood tests will be performed at the physician's office, an anticoagulation clinic, or at home with a specialized testing kit. Tissue Valves The tissue valve is a native valve taken from an animal. Once the tissue is explanted (removed), it is chemically treated and prepared for human use. Some tissue valves have a frame, or stent, that supports the valve, and some valves are stentless (no framework). A very thin polyester mesh cuff is sewn around the outside of the valve for easier implantation. Eliminating the stent makes it possible for the surgeon to implant a larger valve. Larger valves generally provide more surface area for blood flow; this allows more blood to flow through the valve to accommodate the body's needs. Homografts or Allografts A homograft or allograft is a human valve obtained from a donor. This type of valve is particularly beneficial for pregnant women and children, because it does not require long-term anticoagulation therapy. In addition, it can provide excellent hemodynamic performance, allowing for natural function of the surrounding structures. Because the availability of these valves depends on donors, supply is limited. Take care always

Q:The water in my tub/shower stopped working. I did my research on the net to discover the cause and I also went to Home Depot explained the problem. The worker at home depot helped me get the right part I needed to replace the valve stem. I came home, took the faucet handle off and can see what I need to do next. Everything seems perfect and ready to go, except I can't remove the old valve stem. It seems like the old one should just slide out and the new one replaces it. How do I get the old one out without damaging any of the pipes or hurting myself.: Check back on your website to see if they have the procedure for removing/installing the new stem. These usually have to be turned to allow them to be removed. You should be able to purchase a tool to help you release it. Also, be aware the old stem could be hard to remove due to build-up and/or torn seals. After you get it our, try to remve and deposits in the valve and then apply a little lubricant to the new stem before you insert it. Be sure the lubricant is compatable with the seals.

Q:I heard there are really fine valves, does someone possesses thoughts where to buy these goods? I heard about them on TV. Anybody alive?: Yes, okorder

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