Stainless steel flange plunger valve U41S

plunger valveIt is composed of valve body, valve cover, valve stem, plunger, hole frame, sealing ring, handwheel and other parts. When the handwheel rotates, the valve stem drives the plunger to reciprocate up and down in the middle of the hole frame to complete the opening and closing function 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 and external leakage, and achieving rapid opening and closing of the valve with a small opening torque.

plunger valveThe closure of the valve is composed of a stainless steel plunger, two elastic sealing rings at the top and bottom, and a metal partition frame. The sealing effect is achieved by the tight fit between the plunger and the sealing ring. The plunger is inserted into the two sealing rings, and the sealing area is much larger than that of a normal globe valve; When opening and closing the plunger valve, the plunger slowly moves in the sealing ring, and the contact surface is almost not worn. When closing, the plunger is inserted into the lower sealing ring, cutting 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.

Due to the high-precision cylindrical grinding machine processing of the plunger surface. The sealing ring adopts a non-toxic new sealing material with strong elasticity and high wear resistance, so the sealing is reliable and durable. This improves the service life of the plunger valve.

One Threaded connection or socket welding connection straight through plunger valve

1、 流道：直通式

2. The valve body and cover are made of cast steel or cast steel parts, while the plunger, valve stem, and isolation ring are made of stainless steel. The sealing ring is made of flexible graphite or polytetrafluoroethylene

3. The sealing ring and isolation ring are tightened by bolts, nuts, and spring washers connecting the valve body and valve cover

4. Sealing is achieved by the outer diameter of the plunger and the inner diameter of the sealing ring

5. The opening and closing speed of the valve is slow

II Welding connection straight through plunger valve

1、 流道：直通式

2. The valve body and valve cover are made of cast steel

3. Other structural features with the same serial number

III Flange connected straight through plunger valve

1、 流道：直通式

2. The valve body and cover are made of cast steel or cast steel parts, while the plunger, valve stem, and isolation ring are made of stainless steel. The sealing ring is made of flexible graphite or polytetrafluoroethylene

3. The sealing ring and isolation ring are tightened by bolts, nuts, and spring washers connecting the valve body and valve cover

4. Sealing is achieved by the outer diameter of the plunger and the inner diameter of the sealing ring

5. The opening and closing speed of the valve is slow

4 Flange connected pressure balanced straight through plunger valve

1、 流道：直通式

2. The valve body and cover are made of cast steel, while the valve stem, plunger, and isolation ring are made of stainless steel; The sealing ring and packing are made of flexible graphite or polytetrafluoroethylene; The valve stem nut is made of copper alloy

3. The sealing ring and isolation ring are tightly pressed against the connecting bolts, nuts, and spring washers of the valve body and valve cover

4. Sealing is achieved by the outer diameter of the plunger and the inner diameter of the sealing ring

5. The plunger is hollow with through holes in the upper and lower chambers. The valve stem is connected with a sealing sleeve and nut to balance the pressure in the upper and lower chambers of the plunger, making opening and closing effortless. However, the valve stem should have upper seals and packing seals

6. The opening and closing speed of the valve is slow

Quanli Ordering Notice: (National Standard)
1、 A: Product name, model, nominal diameter B: Medium and temperature, pressure range C: Are there any accessories, delivery time, special requirements, etc. for us to correctly select for you.
2、 If the valve model of our company has already been selected by the design unit, please place an order directly with our sales center based on the valve parameters.
3、 When the situation you are using is very important or the environment is complex, please provide design drawings and detailed parameters, and our engineers and experts will focus on reviewing and analyzing for you. We can provide you with professional solutions, including design, customization, complete sets, operation, and service. We have always been committed to being a leader in the valve industry, providing you with the latest valve knowledge, the best service, and the best technical consultants. Thank you for visiting our website 【 www.quanlivalve. com 】. If you have any questions, you can call us and we will do our best to provide you with high-quality service. Our factory specializes in providing various types of valves such as ball valves, butterfly valves, gate valves, globe valves, check valves, pressure reducing valves, safety valves, marine valves, oilfield valves, water control valves, etc.