Metal sealed plunger gate valve

【Metal sealed plunger gate valveProduct Overview

UZ41HThe metal sealed plunger gate valve adopts a stainless steel sealing surface, which increases the operating temperature of the valve, ensures reliable and durable sealing, and thus improves the service life of the valve.

【Metal sealed plunger gate valveWorking principle

U41SMWhen the handwheel rotates, the flange type plunger valve drives the plunger to reciprocate up and down in the middle of the hole frame through the valve stem to complete the opening and closing functions of the valve. In the valve, an interference fit is used between the plunger and the sealing ring. By adjusting the flange bolts in the cover, the lateral force generated by the compression of the sealing ring is sealed with the hole surface in the valve body and the outer circle of the plunger, thereby ensuring the sealing performance of the valve, preventing internal leakage, and achieving rapid opening and closing of the valve with a small opening torque. Due to the use of non-toxic new sealing materials with strong resilience and high wear resistance in the sealing ring, it can withstand long-term high temperature and high pressure without losing elasticity, making the sealing performance reliable and durable.

【Metal sealed plunger gate valveProduct Features

1. When the action is rapid, the torque is small, and the plunger valve is opened and closed, the plunger moves slowly in the sealing ring, and the contact surface is almost not worn.

2. The sealing ring adopts a non-toxic new sealing material with strong elasticity and high wear resistance, so the sealing is reliable, durable, wear-resistant, and corrosion-resistant.

3. The interference fit between the plunger and the sealing ring in the valve ensures the sealing performance of the valve and prevents internal and external leakage.

4. When closed, insert the plunger into the lower sealing ring to cut off the flow channel; When opened, although the plunger is detached from the lower sealing ring, it is still hidden inside the upper sealing ring, maintaining isolation from the outside world and preventing leakage.

【Metal sealed plunger gate valveExterior Structure

【Metal sealed plunger gate valveTraining size

【Metal sealed plunger gate valveInstallation and Maintenance

1. This plunger valve can be installed at any position, and the direction of medium flow is indicated by the arrow on the valve body.

2. In pipelines with large temperature differences between hot and cold alternation in a short period of time, plunger valves cannot be used.

3. Before leaving the factory, the plunger valves produced by Zhenggang Company are tested, accepted, and used in accordance with ZBJ16006. Only the appearance and hole cavity need to be cleaned, and there is no need to disassemble, wash, or replace them.

4. After a period of use, if there is wear and leakage on the sealing ring, the valve must be closed first, and then the middle flange bolts should be slightly tightened evenly until there is no leakage. When replacing them at the same time, precautions should be taken to prevent cracks and damage to the plunger and the newly installed sealing ring.