Kirjoittaja Aihe: How does a through conduit gate valve work? (Luettu 775 kertaa)

upamfva · 25.06.22 - 05:31

How does a through conduit gate valve work?

A through conduit gate valve works by lowering or raising the gate to close or open fluid flow. This valve operates using an actuator for the automatic version or using a handwheel for manual version. The working principle for both the automatic and the manual through conduit gate valves is the same. To open a through conduit gate valve, the handwheel is rotated in the anticlockwise direction. This makes the stem rotate in the same direction as it moves linearly upwards. Movement of the stem upwards causes the gate which is connected to the stem to move upwards. As such, the gate bore raises upwards and it becomes collinear with the valve port which makes fluid flow through the valve. This makes fluid flow straight through the valve with low-pressure drop. To close a through conduit gate valve, the handwheel/actuator is rotated in the clockwise direction. This makes the stem rotate in the same direction making the stem and gate move linearly downwards. As such, the top solid part of the gate moves downward to block fluid flow. Get more news about pressure balance plug valve,you can vist our website!

Rising stem through a conduit gate valve

This is the through conduit gate valve which is made with a rising stem. A rising stem means that the stem raises above the handwheel when the valve is open. Through conduit gate valve manufacturers design these valves so that they can open by rotating the handwheel which makes the stem move upwards so that the gate bore can be raised. As the stem is being rotated it keeps raising which helps the valve operator to easily know that the direction of rotation is the right one. When the through conduit gate valve is being closed, the stem keeps moving downwards which helps to tell the valve operator that he is trying to close the valve. Rising stem through conduit gate valves is easy to use because one can easily know when opening or closing fluid flow. However, these valves occupy a lot of space and thus they are used where space is not limited.
Non-rising stem through conduit gate valve is a valve in which the stem does not move up and down as it rotates to open or close the fluid flow. This type of valve operates by turning the stem to move in or out of the valve which moves the gate up or down to open or close the fluid flow respectively. Non-rising stem through conduit gate valve manufacturers designs these valves with opening and closing indicators to help the valve operator to know when closing or when opening the valve. Without these indicators, the valve operator can easily damage the valve without knowing. This type of through conduit gate valve occupies a smaller space relative to the rising stem counterpart.

This is a through conduit gate valve which uses a slab gate. The construction of this type of valve entails use of one seat which moves up and down between two seat rings. This design of a gate sliding between two seats makes a through conduit gate valve suitable for use in media with suspended particles. Through conduit gate valve manufacturers design these valves with self-positioning sealing surfaces which makes them safe from thermal deformation of the valve body. When the through conduit gate valve with slab gate is fully opened, the gate bore is linear and smooth, which reduces the coefficient of fluid flow resistance and thus no pressure loss.

This is a through conduit gate valve which uses a tapered gate. This type of valve closes by pushing the wedge gate to a taper in the body. A perfect seal is created in this through conduit gate valve by a combination of the seat ring and the wedge shape of the body. Through conduit gate valves with wedge gate use metal seats which makes them suitable for use in high pressure and high-temperature applications.

wellthisisme · Vastaus #1 09.07.22 - 02:14

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wellthisisme · Vastaus #2 05.09.22 - 02:03

wellthisisme · Vastaus #3 04.11.22 - 06:50

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wellthisisme · Vastaus #4 03.12.22 - 16:40

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wellthisisme · Vastaus #5 02.02.23 - 16:16

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wellthisisme · Vastaus #6 02.03.23 - 12:12

wellthisisme · Vastaus #7 02.06.23 - 04:17

wellthisisme · Vastaus #8 02.07.23 - 00:07

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