Can you dispose of the lead seal on the safety valve by yourself?

No. The seal of the safety valve is sealed after the qualified testing agency has tested the valve. In a sense, it has the force of law. At the same time, there will be a detection time and an expiration date on the valve body.

If the lead seal is removed, the safety valve with the same pressure should be replaced within the validity period.

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The lead seal of the safety valve means that the detachable or adjustable part of the safety valve is threaded with a copper wire wire, and then fixed with lead blocks at both ends of the copper wire. Achieve the purpose of protection.

The lead seal of the safety valve can effectively prevent the damage caused by abnormal opening to the factory state or the safety state that has been debugged. If the seal is damaged during use, it is an indication that the safety valve may not be able to perform its safety protection role, and it should be debugged until it is restored.

The safety valve is a special valve that is normally closed under the action of external force, and when the medium pressure in the equipment or pipe elimination channel rises more than the specified value, the medium in the pipeline or equipment is discharged to the outside of the system to prevent the medium pressure from exceeding the specified value.

Safety valves belong to the automatic valve category, which are mainly used in boilers, pressure vessels and pipelines, and the control pressure does not exceed the specified value, which plays an important role in protecting personal safety and equipment operation. Note: Safety valves must be pressure-tested before they can be used.

Safety valvesHave you ever reported for inspection?SealsNo.

Because the lead seal of the safety valve is sealed after the valve is tested by a qualified testing agency. In a sense, it has the force of law. At the same time, there will be a detection time and an expiration date on the valve body. If the lead seal is removed, the safety valve with the same pressure should be replaced within the validity period.

A seal is a lock-like device applied by a specific person after the goods have been loaded into the container and the door has been properly closed. Lead seals can be divided into customs seals, commodity inspection seals and commercial seals according to different personnel. Once properly locked, the seal cannot be opened unless it is violently damaged (i.e., cut) and cannot be reused.

Each seal is uniquely numbered.

The operation of the safety valve includes the following:

1. The inspector should pay attention to the corrosion of the safety valve, and whether the seal is damaged or not within the qualified calibration period.

2. A stop valve is installed between the safety valve and the discharge port.

During the trip, it must be in a fully open position and sealed with a lead seal. The inspector should inspect it, and if the valve needs to be used, a special person should be assigned to operate it, and the person in charge of operation and the inspector should be present to make a record of the operation.

3. When the safety valve is found to be out of order or faulty during the inspection, it should be disposed of immediately or stop running.

The above content reference: Encyclopedia - Safety Valve.

The safety valve seal is used as follows.

After passing the factory inspection, the safety valve manufacturer will be sealed with its own manufacturer's lead seal to ensure that other personnel and institutions cannot adjust the safety valve before sending it to the local pot inspection institute for secondary calibration.

When the manufacturer's safety valve is sent to the boiler inspection institute for secondary calibration, the personnel of the boiler inspection institute cut open the manufacturer's lead seal for secondary calibration, and then put on their own lead seal after the calibration is qualified, so as to ensure that other personnel can no longer adjust the safety valve after arriving at the scene.

Generally, the lead seal is hit on the valve cap and the adjusting ring position, that is, on the adjusting parts. If the seal is opened without authorization, even if there is no adjustment, in addition to the follow-up problem, the safety valve manufacturer and the pot inspection institute are no longer responsible for the safety valve.

The seal of the safety valve is equivalent to a "seal". After the starting pressure of the safety valve is checked, the two ends of the fine iron wire are compacted and connected with lead blocks. Prevent arbitrary adjustment of the seat pressure of the safety valve. The handle function is used to open and check to ensure the integrity of the safety valve.

The lead seal ensures that the safety valve does not jump, and the gate valve is mainly to facilitate the calibration of the safety valve, and the significance of the bypass valve is that once the safety valve is rusted, the bypass valve can relieve pressure to ensure that the equipment is in good condition.

Failure of the seal of the safety valve may cause the safety valve to not function properly, which can have an impact on the safety of equipment and personnel. The following are the methods and precautions for judging the failure of the seal of the safety valve:

1.Check the seal: Observe whether the body and seal of the safety valve are complete, if the seal is visibly damaged or cracked, it may mean that the seal has failed.

2.Check for air leakage: Use a leak detector or by listening to the sound and observing the air flow of the safety valve exhaust to determine whether the safety valve is leaking. If the safety valve has been sealed and failed, there is a risk of air leakage.

3.Check the adjustment pressure: check whether the adjustment pressure of the safety valve is normal, if the adjustment pressure is not in line with the standard, it may indicate that the seal is invalid.

4.Precautions: When judging the failure of the safety valve seal, it is necessary to pay attention to the service life of the safety valve and the environment in which the seal is used.

If the safety valve has reached the end of its service life or if the seal is used in a harsh environment for a long time, it may affect the performance of the seal and lead to failure. Therefore, while using the safety valve, it is necessary to regularly inspect, maintain and replace the lead seal to ensure the normal operation and service life of the safety valve.

Summary. Hello dear! We're happy to answer for you! The lead seal of the valve is to prevent leakage and strengthen the sealing effect, usually there will be a lead seal hole at the bottom of the ball valve, and the lead bar or other sealing materials are plugged into the hole, so as to achieve the purpose of lead sealing.

The root valve of the safety valve is how the ball valve is sealed, and must it be sealed.

Kiss, hello! We're happy to answer for you! The lead seal of the valve is to prevent leakage and strengthen the sealing effect, usually there will be a lead seal hole at the bottom of the ball valve, by plugging the lead strip or other sealing materials into the hole to hollow out, so as to achieve the purpose of holding the lead seal.

Extended] Not all ball valves must be sealed. Some ball valves are designed to have good sealing properties and therefore do not need to be sealed. In this case, if the seal is made, it will affect the normal use of the valve, and may increase the maintenance of components and maintenance costs.

If you are not sure whether the ball valve needs to be sealed, it is best to refer to the corresponding product manual or ask the seller or manufacturer for confirmation. It should be noted that if the ball valve does need to be sealed, it is recommended to close the valve and drain the pressure in the pipeline before sealing, so as to avoid unnecessary safety accidents. At the same time, when carrying out lead sealing, attention should be paid to the sealing performance, corrosion resistance and environmental protection of lead strips or other sealing materials.

After completion, the seal site also needs to be inspected and maintained to ensure sealing performance and safety.

The root valve of the safety valve is how the ball valve is sealed, and must it be sealed.

Hello dear, the safety valve root valve is a ball valve with the following way of lead seal and must be sealed<><

When the root valve of the safety valve is a ball valve, a lead seal is required. The function of the lead seal is to make the ball valve not easy to be disassembled artificially, so as to ensure the normal operation and safety performance of the safety valve. According to the relevant regulations, the safety valve must be sealed late to ensure that it is not damaged or altered by anyone.

Therefore, in the case where the root valve of the safety valve is a ball valve, a lead seal must be carried out.