High Performance High Temperature Relief Valve

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Specifications

1. High Performance
2. Competitive Price
3. Prompt Delivery
4. Perfect After-sale Service.

High Performance High Temperature Relief Valve

Product Information:

Manufactured according to ASME SECTION I
Size: 1 1/2" -- 6"
Pressure: 300LB -- 2500LB
Temperature: ±520°c

Product Feature:

The back pressure adjusting system utilizes the flowing steam to build and adjust back pressure, to ensure that lowdown is not more than 4% of set pressure.
Nozzle is welded with body, to make connection stable when it's serviced in the condition of high temperature and high pressure.
Connection of inlet and outlet is flange type, to make installation and maintenance easy.
Perfect guide design provides well alignment, to ensure that the operation of valve is agile and stable.
The selected materials are of high performance, which can be used in high temperature condition.
The nozzle and disc is faced with satellite, and lapped precisely.
Spring is produced through excellent technology, and tested under simulative service condition.

Q: Need some info. Ok, four valves per cylinder is better than two valves per cylinder. Fine, why did Ford REVERT to only 3 valves (my guess is to save cost SOHC)? Audi and VW are using five valves per cylinder on some cars, does this offer any advantage over a four valve engine? Maserati even experimented with a six valve per cylinder!!!! (see link) http://www.maserati-alfieri .uk/alfieri26.htm but abandoned it (my guess is cost again?) Why are we stuck at four valves or would more valves actually render more horsepower? Pop some ideas best answer to reasonable answer...: One advantage is that of pressure differentials. For the intake of a non-aspirated engine, not supercharger, the pressure differential between the atmosphere and the cylinder is about 14.6 lbs. maximum, atmospheric pressure. For the exhaust there is a high pressure in the cylinder and therefore it is easier to clear out most of the burned fuel mixture. So exhausting the cylinder is easier than getting the fuel-air mixture into the cylinder. It is a bit simpler to make one large exhaust valve and two smaller intake valves as far as the layout of the valves in the cylinder head. You save on parts is one consideration. Also, high revving engines make more horsepower but passenger cars never see the advantage of higher horsepower like racing engines do. If you build racing engines, it is not that difficult to use the same cylinder heads or last years heads. If you don't build racing engines, you are not worried about high horsepower designs and more about keeping the cost of the engine reasonable. You probably never use all the horsepower your engine is capable of delivering so why pay for more engine than you will ever use?

Q: what is the reason for a 30 degree angle valve cut ? should i have this done on a Street performer 351 windsor with stock street heads and a mild cam?: Makes the intake and exhaust flow smoother.

Q: OK, I would like to run my shorty headers open on my Camaro, but I have two questions.1. I heard valve damage may occur because cold air gets in there. Why isn't this the case with straight pipe exhaust, doesn't the cold air travel to the valves in that case anyway?2. Right now with my headers to off road y pipe I have 2 o2 sensors to throw the check engine light off, and it has worked. If I run open headers, will they still work?: Cold air doesn't get in to damage, but the valve needs a bit of back pressure. The valve will burn, crack or check, or the valve seat will do the same. The common damage is a small w crack on the valve face, which then leaks compression gases into the hot header resulting in erratic backfire and misfiring. The lack of back pressure can be compensated for by richer mixture, or grinding a wider seat. Get used to lapping in valves, or find some high performance sodium valves and stelite seats. You could run dumps, and only open the headers for short blasts.

Q: and i want to but over size valve seatscan i do it in a 1991 chevy chenynne k2500: I am assuming that you are referring to a small block chevy or similar engine. Valve seats occasionally crack where the two exhaust valves sit side-by-side. This is the only part where the two exhaust valves are next to each other; the others are separated. This causes high heat in this area and can fatigue and crack. You will need to replace valve seats on the heads which involves boring out the existing seats and installing new ones. You will then need to have new valve angles ground in so that the valves seal properly. While you are doing this I recommend putting in new valve guides, or in a worst case scenario bronze liners (this prevents the start up smoke). To do a set of heads properly you are probably in the neighborhood of $1500 plus and that does not include the removal and reinstallation. If you can I'd recommend a set of World Products SR Torquer heads, you will save money and increase performance. There are also a number of other good aftermarket cylinder heads out there, so the only limit is how much you want to spend. Good luck.

Q: Our water heater (bought in 2007 so still fairly new still under warranty luckily) seems to release water from the pressure release valve quite frequently. Everyone seems to say that it shouldn't do it often and ours probably does it a couple times per day. 2 main questions - 1. Is there really a risk of too much pressure building up and the water heater exploding (that's what the sales guy at Lowe's said) and 2. Any idea what the problem might be/what we should check out?: Theres no risk of the water heater blowing up if the relief valve is doing what is supposed to.But i recommend a professional check out the installation.Do you know if you have an expansion tank installed on the cold water side? We put one in on every water heater installation.A professional will also check system pressure-some houses have a Pressure Reducing Valve (PRV) and they can fail.You need to check static and dynamic pressure both.And finally sometimes relief valves fail too.If you dont know how to check these things,call a professional.

Q: Does anybody know what the valve lash specs are on a 1986 chevy sprint 1.0L carbureted?: if you cant see clearly, just right click it and choose save as so you can enlarge it. this will be important. now... Rear of vehicle side = Intake valves Font of vehicle = exhaust valves Rotate crankshaft clockwise and align the timing notch on the pu;;ey to 0 on the timing tab. Remove the distributor cap and ensure the rotor is at 3 oclock This position indicates the is at compression stroke. TDC #1 cylinder. Using feeler gauge between rocker and valve syem, check intake and exhaust valve clearance on cylinder #1. After adjustment tighten the locknut to 11 to 13 ft pounds torque.

Q: When looking at the head on my chevy 350 how do I determine which is the intake valve and which is the exhaust valve?: the intake valve is usually bigger and on the left. the exhaust valve is usually smaller and on the right. at least it is true in small engines (lawnmowers).

Q: are the carborator reed valves supposed to be open or closed on a 1999 yz 250?dirt bike: reed valves depend on engine vacuum to operate. the reed valves are closed when the engine is off and as the engine load goes up, it requires more fuel so engine vacuum goes up causing the reed valves to open more, letting in more fuel. So, is the engine running or off?. are the reeds bent? if they are, they might be straightened if u use care. they break ez.

Q: I'm thinking of buying a used 2006 Volkswagen Jetta. It has a 1.5 liter 20 valve engine, and I really don't know what that means. That's good, right?And is this a good used car to buy?: Most okorder , and check the service records for the car you are interested in buying.

Q: Can I make a heat pump straight A/C ?Or some hints how to replace the reversing valve without reclaiming freon: it depends on the unit but you can run it without the heat pump..somtimes its the solenoid and not the actual valve body that can be replaced without recharging.check the current to the valve first.

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