Cast Iron Gate Valve Standard or Nonstandard: Standard Structure: Gate Pressure: Medium

Cast Iron Gate Valve Standard or Nonstandard: Standard Structure: Gate Pressure: Medium

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 100 pc

Supply Capability:: 9999 pc/month

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Valve is a opening and closing the gate assembly, perpendicular to the direction of movement and direction of flow of the gate, gate valve can be fully open and fully closed, discomfort door parameter varies, usually 5 degrees, the medium temperature is not high for 2 ~ 52 '. Improve the process, make up the sealing surface angle in the process of the deviation, which is called the gate.

Motion editing valve closed, the sealing surface can only rely on media pressure to seal, which only rely on media Z41h flange wedge gate valve pressure on the sealing surface of the disc to the other side of the valve seat to ensure the sealing surface, which is self sealing.

Most of the valve is forced to seal, that is, when the valve is closed, to rely on external force to force the gate to the seat, in order to ensure the sealing surface of the seal.

Movement: gate valve with the valve stem together for a straight line movement, also known as the gate valve.

Usually on the lifting rod with trapezoidal thread, through the valve on the top of the nut and the body of the guide slot, the rotating motion into a linear motion, that is, the operating torque into the operating thrust.

When the valve is opened, when the gate height is equal to 1:1 times the diameter of the valve, the fluid passage is completely free, but at the time of operation, the position can not be monitored.

Actual use, is the apex of the stem as a sign, that is, the open position, as its fully open position. In order to consider temperature changes occur locked phenomenon, usually open to the vertex position, and then rewind 1 / 2-1 circle, as a fully open valve position.

Therefore, the valve fully open position, according to the location of the gate (that is, the stroke.

Some gate valve stem nut is located on the gate, the hand wheel rotation to drive the valve stem rotation, and so that the gate to upgrade, this valve is called the rotating rod gate valve or called the dark bar gate valve.

Specifications

Resilient Seated Flanged gate valve

resilient gate valve F5

1.size:DN40-DN300

2.medium:water

3.certificate:ISO9001 CE

4.standard:DIN

WZLD OEM Certificate 2'',12 Inch,16 Inch Cast Iron Manual Gate And Globe Valve

Available medium:water

Working temperature:≤80°C

Flange dimensions:DIN2501

Face to face dimensions:DIN3202F5

cast iron gate valve

Q: What is the difference between the copper gate valve and the ordinary material gate valve?!: The copper gate valve is made of copper alloy, and the common materials are made of stainless steel, cast steel, cast iron, and so on. Now there are new types of ceramic gate valves. Different properties of the gate valve performance, processing technology, service life, applicable occasions are a certain difference. Copper gate valves should be used for fire end water outlet installations as well as other occasions with special requirements.

Q: Does the relief valve have a gate valve?: With the ball valve, needle valve, with the valve did not see, but there should be some.

Q: What are the meaning of the cast rigid gate valves z41h-16c?: According to the provisions of the JB/T 308-2004 valve type programming method:Z== gate valve4== flange connection1== rigid single gateH== sealing surface material: Cr13 stainless steel16== pressure rating: 1.6MPaC== body material: carbon steel

Q: Why does the fire hydrant box in the air defense area need to be added with gate valves?: 3, protective valve should be used for stainless steel or copper gate valve or cut-off valve;4, air defense enclosure structure, the distance from the proximal end of the valve should not be greater than 200mm. Valve should have obvious signs of opening and closing.

Q: What kind of copper gate valve copper content standards, there are no national standards?: Copper gate valves are made of brass and bronze, and the national standard does not require copper content.

Q: What is the allowable leakage rate of the gate valve D?: In GB/T 13927, the leakage rate of the valve is divided into 10 grades, namely: A, AA, B, C, CC, D, E, EE, F, G class. And stipulates that when the order contract does not specify, the metal sealing valve according to D requirements.

Q: What is the wedge type gate valve wedge is what mean: B. wedge type single gate, it is the whole wedge gate. In the process of opening and closing the sealing surface is prone to scratches, easy to make the temperature change gate wedge live. It is a gate used for normal temperature, medium temperature and various pressures. C. wedge double plate, which is composed of two gates composed of spherical top hinged into wedge-shaped gate. The advantage is that the accuracy of the cover angle is lower; the sealing surface of the gate can be compensated by adding shim at the top of the seal; the temperature changes are not easy to cause the phenomenon of the card master, nor should it be abraded. Because the gate is movably connected and has more parts, it is easy to bond in the viscous medium and affects the sealing. Especially when the upper and lower baffles are corroded all the year round, the flashboard falls off arbitrarily. It is usually used for water, steam and gas pipelines.

Q: What does valve qz45x - 10q mean?: Crown valve pressWhat does Q stand for? I'm not sure. It's probably made of ductile iron"Z" means "gate valve"4 represents flange connection5 represents the dark bar (1 represents the Ming pole)X stands for rubber seal and soft seal10q stands for 10 pressure

Q: What is plug welding gate valve?: Plug connection pipeline welding mode safety gate valve

Q: What is wire feed gate valve? What do you say in French?: It should be the wire gate valve. Refers to the valve body with internal thread or external thread, and pipe thread connection. Also called thread valves, threaded valves, valves within the toothFlange gate valve is connected to the flange gate valve, this connection is the most common wayThe main difference is the connectionI only know their English, I'm sorry I can't help youBox thread valveFlange valve

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