波纹管闸阀

波纹管闸阀采用波纹管密封结构，具有设计合理，耐疲劳，使用寿命长等特点。该阀的密封填料为波纹管和其它填料双重密封，确保阀杆处的无泄漏密封，特别适用于易燃、易爆、有毒及贵重介质的管路.

Standard

Design and manufacture：API602、BS5352、MSS SP-117、ASME B16.34

Face-to-face dimension: Screwed and socket weld ends, consult Wanlong

Flanged and butt weld ends ASME B16.10

End connection: Socket welded ASME B16.11；

Butt welded ASME B16.25；

Screwed end ASME B1.20.1；

Flanged end ASME B16.5

Construction: BB.OS＆Y / WB.OS＆Y

Material：ANSI/ASME

Test and inspection：API598、API602

Application

The valves is designed for aggressive applications, especially in transmission of hazardous substances, including flammable, explosive and toxic line medium either liquid, steam, gas, dust, powder, granule or oil. The valve is widely used in industries, including chemical, petrochemical, oil, LNG, refining, mining, power, textile, food & beverage, pulp & paper, water & waste water, phamaceutical and HVAC, etc.

Gate valve is for shutoff purpose, it can’t be used for regulating.

Feature

1.Compact design. The size of our gate valve is 28%~45.4% shorter than valves of similar diameter.

2.Zero leakage. All valves are Helium leak tested 100%.

3.Multi-ply bellows, enclosure type, provide maximum service life.

4.Wedged-shape with double sealings. In case sealing is failed on one side, the sealing on the other side shall function just well.

5.Gland packing is provided for excessive guarantee.

6.Straight-through channel design. The valve is low torque, low flow resistance, hight flux rate and is energy saving.