普京上台的时间

⊙产品简介 Product Introduction

对夹式蝶式止回阀是一种节能产品。引进*进技术，参照标准制造的阀门，产品具有优良的性能，高的安全性和可靠性，流体阻力小。应用于石油，食品，医药，纺织，造纸，给排水，冶金，能源等工业领域管道上作为截断阀门。

The wafer flange clamped butterfly check valve is a energy-save product. It is manufactured based the foreign advanced technology and in accordance with relative international standards. This product is featured by excellent retaining performance, high safety and reliability and low flow resistance. It is suitable for systems in the industries of petrochemical food processing, medicine, textile, paper-making, water supply, drainage, metallurgy, energy and light industry, etc. used as a check valve in one way.

⊙结构特点 Feature:

1. 体积小，重量轻，结构紧凑，维修方便。

2. 扭力弹簧使两个阀瓣连接在一起，阀门开关迅速，自动。

3. 防止介质倒流，防止水锤。

4. 结构短，便于安装和维护。

5. 在垂直或水平管道上均可简便安装。

6. 密封性能好。

7. 操作安全可靠。

8. 法兰连接尺寸按照 GB4216-84, GB4216.5—84 。

9. 结构长度按照 GB/T 12221-89 ， ISO5752-82 。

1. Small in size, light in weight, compact in structure, easy in maintenance.

2. Two torsion springs are used excerting on each of the pair valve plates, which close the plates quickly and automatically.

3. The quick-close action prevents the medium from flowing back and eliminates water-hammer effect.

4. This valve is short in length, so that it is rigid and easy to mount.

5. It is easy to install on pipeline which is laid horizontally or vertically.

6. This valve is tightly sealed without leakage under the pressure water test.

7. Safe and reliable in operation, high interference-resistance.

8. The Connecting dimensions of flange according to the standard of GB4216-84, GB4216.5—84.

9. The face to face dimension is in accordance with ISO5752-82. The stem of the valve should be perpendicular to the horizontal level when the valve is mounted on horizontal pipeline. For vertical installation the direction of flow should be downward.

蝶式旋启式止回阀

Butterfly Swing Check Valve

Class 150-300

⊙零部件材料 Parts & Material List

⊙外形尺寸及重量 Dimension&Weight