H664y Steam Extraction Check Valve

H664y Steam Extraction Check Valve

H664Y Steam Extraction Examine Valve designed and manufactured by HangZhoua Goole Valve Co., Ltd. is dependent on the imported engineering and adopts the most advanced design and style, production, material engineering and redevelopment to meet up with the specifications of the domestic 600MW and 1000MW. The steam turbine extraction technique of the generator set demands the valve goods and its technological performance has arrived at the global sophisticated degree. It has equipped hundreds of domestic and foreign power companies with hundreds of substantial-high quality and low-expense items. It has been well received by several customers and has changed some imported goods. It will save a lot of foreign trade for the country. This series of goods are mostly employed in the extraction program of thermal electrical power turbines under 600MW to avoid the again movement of medium or drinking water, and perform a protecting position for critical services this sort of as steam turbine pumps. Its performance necessity is that in the extremely situation that the medium of the pipeline is flowing back again, power off, accident, and so forth., the valve is closed immediately and the closing time is significantly less than .5 CZPT.

H664Y Steam Extraction Verify Valve
[Exhaust check valve style and producing inspection CZPTs]
Design and style and manufacturing CZPTs: ASME/ANSIB16.34, E101, JB/T3595
Framework length CZPTs: JB/T3595, ASME/ANSIB16.10, GB/T12221
Welding conclude or flange CZPT: GB/T12224, ASME/ANSIB16.twenty five, GB/T9113, JB/T79~JB/T82
Take a look at acceptance requirements: JB/T9092, JB/T3595, ASME/ANSIB16.34, E101

H664Y Steam Extraction Check Valve
[Extractor check out valve features]
one. Design and style, manufacture, and acceptance CZPTs are ANSI B16.34, E101, or JB/T3595, and power and sealing overall performance fully fulfills the requirements of the CZPT.
2.Vacuum check below vacuum situation, the entire daily life fulfills consumer specifications
3. For different temperatures, the main materials is carbon steel or substantial-temperature metal, and the sealing floor is surfacing difficult alloy
four. The valve flap is developed to be connected with the valve rod through the rocker and can be aligned with the sealing surface area of the valve to guarantee that the sealing floor is constant
5.The valve seat sealing surface area is inclined at a certain angle to lessen the closing time, decrease the effect, and protect the protection of the gear by itself and the pipeline
6.The valve is equipped with a damping fat, which can stability the dynamic torque of the closing component to avoid the occurrence of hammer.
7. The physique cavity of the valve adopts a streamlined layout, which has massive circulation capability and lowers valve resistance.
eight. The actuator is a spring-return type cylinder or hydraulic cylinder, and is comparatively impartial of the motion of the valve closing element. The failure of the actuator does not have an effect on the action of the closing portion
nine. The cylinder or the inner wall of the hydraulic cylinder is coated with a use-resistant and corrosion-resistant layer, which can improve the lifestyle span, lessen the resistance of the motion, and make the valve adaptable and dependable
ten.The closing part is opened with a limit mechanism to stay away from damage triggered by opening more than place
eleven. The actuator is geared up with the valve switch placement sign output, valve open up position local sign
12 Qualified design can also be dependent on particular consumer requirements.

H664Y Steam Extraction Verify Valve
[Extraction check valve use and efficiency specs]
H664Y valve is utilised in non-corrosive media these kinds of as h2o suction technique of electrical power plant or thermal power plant, or other program, to avert unexpected reduction of force in steam turbine when steam turbine load is used, steam in the extraction pipe and each and every heater reverse circulation into steam turbine Triggers the steam turbine to shatter and demolish the turbine generator. It will avert the leakage of the heater method piping and shut the h2o from the extraction steam. When the feedwater heater is at a high h2o amount, the pneumatic system factors will be connected to the liquid. Following counter-present signals, the turbines are swiftly separated to offer highest protection to the turbine or the pumping method.
 

MCZPTL Course SHELL Examination SEAT Examination Applicable TEMPERATURE AIR Source
H664Y-150Lb 150Lb three.0Mpa two.2Mpa ≤425ºC .6Mpa
H664Y-150LbC6 150Lb three.0Mpa two.2Mpa ≤510ºC .6Mpa
H664Y-300Lb 300Lb 7.5Mpa 5.5Mpa ≤425ºC .6Mpa
H664Y-600Lb 600Lb fifteen.0Mpa 10.0Mpa ≤425ºC .6Mpa
H664Y-900LbC6 900Lb 24.0Mpa 18Mpa ≤510ºC .6Mpa
H664H-20 two.0Mpa three.0Mpa 2.2Mpa ≤425ºC .6Mpa
H664H-50 5.0Mpa seven.5Mpa 5.5Mpa ≤425ºC .6Mpa
H664H-a hundred ten.0Mpa fifteen.0Mpa eleven.0Mpa ≤425ºC .6Mpa
H664Y-64C6 6.4Mpa nine.6Mpa seven.1Mpa ≤510ºC .6Mpa
H664Y-100C6 ten.0Mpa 15.0Mpa 11.0Mpa ≤510ºC .6Mpa
H764H-twenty two.0Mpa three.0Mpa 2.2Mpa ≤425ºC .6Mpa(CZPT)
H764H-40 4.0Mpa six.0Mpa 4.4Mpa ≤425ºC .6Mpa
H764H-64 six.4Mpa nine.6Mpa 7.1Mpa ≤425ºC .6Mpa

[Air circuit technique working theory]
       The air resource arrives from the compressed air (air source stress .4~.6Mpa). After the ball valve enters the two-situation 3-way solenoid valve, it last but not least enters the cylinder air inlet through the quick exhaust valve, and the examine valve opens. Manual directional valve is used for the flexibility of working test valve.
      When the check out valve closes, the solenoid valve shuts off and shuts off, shutting off the air source. The fast-discharge valve starts off and the air in the reduced chamber of the cylinder is exhausted. The verify valve closes swiftly.
      CZPTtromagnetic valves, air managing components and other management components, in accordance to the demands of the turbine plant utilizing the CZPT States ASCO imported merchandise, but also can be equipped with other domestic and foreign producers of substantial high quality goods to ensure exceptional performance and high reliability.
Structural features
1. The sealing area surfacing Cr13 collection stainless steel or cobalt-dependent challenging alloy has good dress in resistance, and the sealing performance is steady and dependable.
2. When the medium is flowing in the ahead course, the air is injected into the lower chamber of the cylinder and functions collectively with the excess weight to equilibrium the valve flap in the fully open position. When the medium is flowing in the opposite course, the lower chamber of the cylinder piston is swiftly relieved and the valve flap closes rapidly inside .five CZPTs.
3. The excess weight hammer functions on the pin shaft via the extension rod and the change fork to harmony the weight and the instant of the rocker to stop the h2o hammer phenomenon from occurring. When the medium flows in the ahead course, it will help to open up the valve and maintain the valve steady and decrease vibration in the course of procedure.
 

H664y Steam Extraction Check Valve