cast iron globe valve

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Product Description:

1.Technical Date:

Size: DN40-DN600

Nominal Pressure: PN10/PN16

Operation Temperature: ≤80°C

Suitable Medium: Water,Sewage,Seawater,Gas,Food,Oils,etc.

2. Standard

Design Standard: GB/T 12233-2006

Structural Length: GB/T 12221-2005

Top Flange dimensions: ISO5211

Face to face dimensions: GB9112,DIN2501,BS4504,ISO2084,ANSI125

Type of connection: Wafer Type/Threaded Connection

3.Feature:

1, simple structure, manufacture and maintenance more convenient.

2, small work schedule, opening and closing time is short.

3, good sealing, sealing surface friction between the small, long service life.



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Q:What does the J41Y-100I valve type mean?
J41Y-100I flange type chrome molybdenum steel valve forgingJ represents the cut-off valve, 4 (flange) on behalf of his connections, 1 (straight) on behalf of his structure, Y (seal) on behalf of his seat sealing surface or liner material code, 100 is the nominal pressure value, I (chrome molybdenum steel) is the code of the body material
Q:What are the types of valves?
1.2.1 sort by pressurex09 (1) vacuum valve operating pressure below standard atmospheric pressure valvex09 (2) low pressure valve nominal pressure PN is less than or equal to 1.6 MPa valve.x09 (3) medium pressure valve nominal pressure PN, 2.5, 4, 6.4 MPa valvex09 (4) high pressure valve nominal pressure PN 10.0~80.0 MPa valvex09 (5) high pressure valve nominal pressure PN = 100 MPa valve.1.2.2 classification by dielectric temperaturex09 (1) high temperature valve for medium working temperature T > 450 degrees of the valvex09 (2) medium temperature valve for medium temperature 120 degrees valvex09 (3) at room temperature valve for medium temperature -40 = t = 120 DEG C of the valve.x09 (4) low temperature valve for medium temperature -100 = t = -40 C of the valve.x09 (5) ultra low temperature valve for medium working temperature T < -100 DEG C valve
Q:What valve does the high pressure by-pass valve DN254 * 800 belong to?
High pressure bypass valve DN254 * 800 belongs to bypass valve.Function of bypass systemThe turbine by-pass device mainly has three functions of starting and overflowing:1 in the cold, warm and hot, the bypass system can realize the optimal unit start-up and shut-down in turbine operating conditions, start and stop curve can meet the requirements, two types of automatic and manual operation, with the establishment of the boiler steam temperature and steam turbine components. To shorten the start-up time.2. when the turbine is tripped, the bypass system can operate at a high speed and reach full open position.3., when the turbine load changes, the by-pass system has the regulating function, and the safety valve action can be avoided and the operation stability of the boiler can be improved when the instantaneous change of the moving state.The function of the bypass control valve:The main function of steam turbine bypass system is high pressure steam adjusting throttling and superheated steam cooling. The bypass valve to perform these functions at the same time and in low noise, small vibration, valve resistance to achieve its goal of temperature and pressure loss under the condition of touch.
Q:How are the types of valves classified?
In addition to the cylinder or hydraulic cylinder piston to drive, but also the use of pneumatic film driven, because of its small stroke and driving force, it is mainly used for regulating valves.Manual valveThe manual valve is the most basic way of driving the valve. The utility model comprises a hand wheel, a handle or a plate hand, and is driven directly and driven by a transmission mechanism two kinds. When the starting torque of the valve is large, it can be driven by gear or worm gear to achieve the purpose of omitting. Gear drive, spur gear drive and bevel gear drive. Gear reduction ratio is small, suitable for gate valve and stop valve, worm gear drive is relatively slow, suitable for cock flashing, ball valve and butterfly valve
Q:What does "DN15" mean? What does "PN 16" mean?
DN15 refers to the diameter of the valve, that is to connect the caliber of the pipe.PN16 means pressure, that is, 16 kilograms (1.6MPa).
Q:What is the difference between low pressure valves and medium pressure valves and high pressure valves?
No 1.6-2.5Mpa levels are included in the range of the mid pressure valve.
Q:How to open the gas valve with drawings
It's different from place to place. Some are pulled out half, and some are pulled out. Third: in the following there is a black disk like thing, commonly known as the gas sound core. This one is the same as the second one, half or all
Q:What is a lift rod valve?
Lever valve stem nut in the valve plate, it with the disc (hand wheel) to open the turn, its stem pull the valve head and higher than the valve disk, also known as the bar valve. It is different from the dark rod valve, dark rod valve stem nut in the valve body, when the disc rotates, the stem will not rise.
Q:Valve connections - two how do different connections work?
The inlet and outlet of valve are respectively connected in two different ways: one end adopts flange connection, the other end adopts thread or socket.
Q:What does the 4 point valve mean?
Commonly used valves, pipes in the 4 points, 6 points, an inch, is the earliest use of the length of the British unit, metric units are 15, 20, 25 mm, and now people are also used to call 4 points, 6 points, an inch.1 inches =25.4 mm1 feet =12 inches1 inches =8 cents

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