High Performance WCB 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: The tricuspid valve is closed: a. during the rapid filling of the ventriclesb. when the mitral valve is openc. during ejection of blood from the ventriclesHelp plzThank you!: The tricuspid valve is the connection between the right atrium and the right ventricle, so when blood is rapidly flowing from the RA to the RV, the tricuspid must be open, so it's not A. The tricuspid and the mitral valve open simultaneously so it's not B. As the RV contracts to eject the blood from its chamber to the pulmonary artery, the pressure created within the chamber closes the tricuspid valve to prevent the blood from flowing back to the R Atrium, so the answer is C.

Q: It started leaking slowly so I opened the release valve for about 20 secs than closed it back to see if that would help, but now it leaks even more. So I had to shut off the water that's coming into the water heater and know I can't use the hot water in my house. Can someone help me please!!!!: you will have to get it repalced.after they get old the spring inside starts to get weak.It will only get worst!Do not do a patch job,its not worth it.

Q: I have three zone valves, two out of the three don't ignite the gas. Once I turn up the thermostat I see the lever on the zone valves move but no gas ignition. Only one of three works fine. Any leads? Thanks!: HI! IS THERE A CONTROL BOARD TO WHICH THE ZONE VALVES ARE WIRED? IF SO, DO YOU SEE A PRIORITY SWITCH ON THE BOARD - MAKE SURE IT'S SET TO OFF. GOOD LUCK AND HAVE A GREAT DAY!

Q: How do I adjust the valves on a 96 Blazer, 4.3 V6? When we tighten them to torque specs there is no compression, then when we loosen them and get compression, they loosen up to loose after its been running...any help!, THanks!: There really is no setting for them, they are hydraulic lifters, tighten the lock nut down til zero lash, then tighten 3/4 turn more. if they are still noisy or loose they probably need to be replaced, if that is the case be sure to check and see if the cam needs to be replaced as well, chances are if the lifters need to be replaced so does the cam...you can run new lifters on an old cam...but Never run used lifters on a new cam. You can go to the Library and look this up in a chiltons or haines manual ... it will tell you the same thing.

Q: My car may have warped valves. What does this mean? Can it be fixed? If so about how much? And how does this happen in the first place? Anything helps! Thanks!: You need a new mechanic. Valves don't warp. They bend from hitting something or burn but not warp................

Q: Ok , I am looking for a valve of some sort that is small (1/4 inch), that has high flow preferably lets all the air out at once.This is for a air cannon type thing. lol: The valve with the biggest opening wins. The type valve with the biggest opening is called a ball valve. It is also the quickest one to open because you only have to turn the valve 90 degrees. Th answer to you problem is, get a BIGGER VALVE and bigger lines. Thmyth bustersrs use 6 valve which are 500 times bigger than 1/4 inch so they are 100 times more powerfull.

Q: any flash files explaining valve operation maintenance will be very much helpful: Hydraulic Pressure Relief Valve Animation

Q: My cardiologist says I have Mitral Valve Relapse. She says MVR is when there is a backflow of bood entering the heart. When I checked online for MVR, I couldn't find anything except MVP (Mitral Valve Prolapse). What is MVR and how is it different than MVP?: Mitral okorder /

Q: I have a D16Z6 SOHC VTEC engine in my 93 Honda Del Sol.Ive been told that the D16Z6 came with 2 different valve covers. One style cover says Honda on the top and another also says VTEC.I have the one that just says honda but I want the other put on.What would I need to swap them, and where would I get them?and a roundabout price: I don't think they sell any aftermarket valve covers that say Honda VTEC since companies would have to pay honda to use the name and i did a quick search but I could not find 1 cover for you vehicle which means you'd have to call the junk yards around your area or just call Honda and see if they can order one in for you, i doubt they have one lying around on a shelf it will take anywhere from 2 days to a week to order in and since its factory honda part its probably around 200$ without the gasket(maybe abit more) but if you swap it for a new one I suggest you do the gaskets and grommets with it so it won't leak oil. It's pretty fairly easy to change yourself, they are all top nuts or long bolts that run through the cover if i remember either 10 or 12mm, or both sockets required, when you get all the nuts off you simply just pull off the cover, it might be abit stuck so you can pry gently with a small screw driver or small prybar and it will come off, cover the top with a clean cloth or newspaper so no dust and rocks fall in, clean the metal area off of all the oil and youll see small corners that have abit of silicone on it, thats for extra protection so it won't leak out of the corners so just a small amount of black silicone dab in the same corners then put the new cover with gasket it on and tighten down, and just snug the bolts, theres no need to tighten the crap out of it or you might snap a bolt. 3/8 drive wratchet is okay to use. ( if you get some junkyard valve cover DO NOT paint it unless you have special heat ressistant paint or it will peel off and look really ugly ) Good luck....