Supply the whole amount of type safety valve

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Supply the whole amount of type safety valve

Information Name:	Supply the whole amount of type safety valve
Published:	2011-03-30
Validity:	30
Specifications:
Quantity:	0.00
Price Description:	Negotiable
Detailed Product Description：	Full amount of type safety valve PAT Nominal diameter: DN50 ~ DN152 Major parts material: Name PN6.4 ~ PN32 Pw543.2V ~ Pw5420v Carbon chrome molybdenum vanadium steel body Chrome molybdenum vanadium steel valve steel Heat valve chrome-nickel steel chrome-nickel steel Stem chrome-nickel steel chrome-nickel steel Carbon chrome molybdenum vanadium steel seat Chrome vanadium spring steel, chrome vanadium spring steel spring Stainless steel guide sleeve Sleeve valve chrome molybdenum vanadium steel chrome molybdenum vanadium steel Full amount of type safety valve I. Overview: Full amount of type safety valve is the introduction of our company in Japan in the eighties Okano Valve Manufacturing Co., Ltd. products and permit the U.S. ASME, the design, manufacture, testing in accordance with Japan JISB8210-1978 standards. Our products have been approved in Japan Co., Ltd. Okano, and a certificate issued by the product. Taking into account the United States 300MW, 600MW boiler facilities, was only introduced PAT7418F, PAT747F models. Because of this safety valve performance, reliability, high, and more and more user favorite. According to market demand, the company based on Japan's technology also developed by Okano supporting 50MW, 100MW, 125MW, 200MW boilers and comply with the provisions of the pound ASME full amount of type safety valve, its design and manufacturing standards and the technical indicators are to meet the ASME , ISO, JIS and other universally recognized laws and regulations. So that the design and manufacture of standard safety valve has reached the world advanced level. For China to fill the gaps in this field. Since 1989, the amount produced the first all-type safety valve since the deadline to 2008, has been abroad the whole amount of type boiler safety valve supporting more than 2000 only, the longest running time has reached 15 years, running in good condition. So that the family became the ideal alternative to imported products. Second, the structural description: The valve has a discharge coefficient, accurate opening pressure, opening and closing pressure of small, good sealing, easy adjustment and other features, its main features are as follows: 1. Nozzle-shaped seat: The Rafael nozzle design principle, the outlet valve seat supersonic steam flow rate, emission coefficient. Plasma spray valve seat sealing surface cobalt-based alloy, wear-resistant, anti-erosion, long life. 2. By thermal stress compensation valve structure, and its body is divided into two disc valve and heat the purpose of making full use of the thermal deformation of the disc to achieve the sealing, heat the valve flap is made of tongue-shaped structure to use its the elasticity of small to prevent leakage. 3. The next adjustment ring: ring and valve to adjust the plane to form an annular space, adjust the ring by adjusting the space, to obtain a suitable opening pressure. 4. The adjustment ring: the role of the adjustment ring is to change the emissions by the seat of fluid flow direction, thus changing the fluid reaction force on the valve, the position of the adjusting ring on the direct impact of the valve opening and closing pressure. 5. Cooler: Cooler will be separated from the body and the spring to reduce the impact of the spring heat, spring temperature does not exceed 200 ℃, to ensure that the stiffness of the spring, the spring performance and stability. 6. Adjustment sets: sets is used to adjust the valve to adjust the back pressure, the lower part of the cone and the exhaust chamber form a regulator. Sets of upward adjustments to reduce back pressure valve, adjusting the sleeve down, raise the back pressure valve. 7. Spring: spring is to determine the safety valve key part of the performance of different set pressure and blowdown, the design of different springs. 8. The head and valve stem pad contact points quickly surfacing made with cobalt-based alloy, high hardness, wear resistance, long life. Third, the installation instructions: 1. Safety valve at the factory after the appearance after debugging, do not allow demolition, should be directly installed on the device, the installation location must allow enough room for the adjustment of maintenance, sockets must be of sufficient strength to withstand the exhaust valve when the generating reaction. 2. Valve centerline spacing L and the exhaust pipe shall not exceed the maximum specified value. 3. Valve silencer exit area should be sufficient discharge to prevent backpressure affect the normal operation of the valve and displacement. 4. Valve must be installed vertically. The export of valves must be equipped with proper expansion joint to prevent the discharge pipe to the safety valve of thermal expansion of undue heat stress, discharge tube diameter should be large than the valve outlet diameter, length as short as possible, to avoid turning. Outfall and should not effect the quality of expansion joints on the safety valve should be fixed in the buildings. Safety valve should be installed separately on each discharge pipe. 5. Valve drainage pipe must be individually set to prevent other equipment back into the hydrophobic valve, so that corrosion of parts. 6. Safety valve should be set platform for the maintenance and commissioning. 7. Safety valve to the entrance of the insulation should be the upper end of adjustment rod and insulation should not be so adjusted. Full amount of type safety valve

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