Supplier of Warehouse Top Switching Valve

NegotiableUpdate on 05/16

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

The supplier of the top switching valve in the warehouse is a pneumatic switch valve installed at the hot end of the switching heat exchanger (or accumulator), which uses the principle of connecting rod structure to achieve the opening and closing of the valve plate. It has a simple structure, easy operation, reliable sealing, accurate switching, long service life, and is widely used for on-site operation or remote control in industries such as metallurgy, petrochemicals, and environmental protection,

Product Details

Supplier of Warehouse Top Switching Valve

The switch of the switching valve is controlled by compressed air through a signal from the solenoid valve. According to their different roles in the process, there are air and sewage nitrogen switching valves, pure nitrogen suppression valves, sewage nitrogen three-way valves, etc. There are two types of structures: vertical and horizontal. Vertical switching valves can be divided into two types: gas open and gas closed. Pneumatic opening refers to the automatic opening of the valve disc by its own weight when the compressed air signal is cut off; On the contrary, it is an air closed type. The selection of air opening and air closing is determined by the safety of the device. The nitrogen switching valve uses an air open type, and the air switching valve uses an air closed type.

Due to the fact that the action of the switching valve is controlled by an electromagnetic valve, in addition to selecting the air open or air closed type to prevent harm caused by gas source failure, attention should also be paid to the coordination between the status of the electromagnetic valve and the switching valve, so as not to endanger equipment safety in the event of power failure. The following are respectively explained:

1. Sewage nitrogen switching valve. When the four-way solenoid valve is powered, the switching valve closes. When the power is lost, open the switching valve. And when the power supply loses power or the gas source loses pressure, it can also be opened by its own weight. This ensures that in the event of a malfunction, the gas in the upper tower can be released through the cold storage device without causing overpressure.

2. Air switching valve. When the four-way solenoid valve is powered, the switching valve opens. When power is lost, the switching valve closes. When the control power fails and loses power, the switching valve closes; When the control gas source fails and loses pressure, the switching valve closes by its own weight to ensure that the raw air does not enter the air separation tower in case of failure.

3. Sewage nitrogen (pure nitrogen) three-way switching valve. The four-way solenoid valve is powered, and the three-way switching valve is in the discharge position; The four-way solenoid valve loses power, and the three-way switching valve is in the vent position. When the power fails and loses power, the three-way switching valve is in the vent position; When the gas source fails and loses pressure, the three-way switching valve can be in the venting position by its own weight.

parameter

Model: L643X

Nominal diameter: 100-2400

Applicable temperature: ≤ 280 ℃

Drive mode: Pneumatic

Applicable media: dusty gases, smoke, coal gas, air, etc.

This valve is mainly composed of an upper valve body, a middle valve body, a lower valve body, an upper seal, a lower seal, a valve disc, a cylinder, a connecting rod, etc.

purpose

Supplier of Warehouse Top Switching Valve

Installed at the top of the silo, it is used for switching between conveying pipelines and silos. It has the advantages of easy switching, good sealing, compact structure, and small footprint, and is an important component in pneumatic conveying systems.
The valve adopts a flushing sealing ring. When the valve is opened and closed, there is no contact between the valve core and the sealing ring. After the valve is switched, the sealing ring is inflated to achieve elastic deformation for sealing.
The valve is equipped with a position switch and can send the switch signal to the PLC for remote control;
The sealing ring is equipped with a pressure detection switch, which can intelligently detect whether the sealing ring has failed or been damaged;
The valve is driven by a cylinder, making switching convenient and fast;