Direct Mount Bellow Sealed Gate Valve DN15-DN1500 PN1.0-10.0MPa 18 Months Warranty

Bellow sealed gate valve ensures zero stem leakage with durable bellows sealing, ideal for radioactive or precious media. Features 500K-1M life cycles, flanged connection, and -25°C to 425°C range. Custom options available.

Sealing Performance: Sealing
Place of Origin China
Mounting Type: Direct Mount
Packaging Details Plywood box safety packing
Flow way: two way
Supply Ability 100pcs per month
Product Description

Highlight: Bellow sealed gate valve


Product introduction:


Bellows gate valves mainly refer to gate valves that use bellows as the sealing element for the valve stem, and are often

used in scenarios with strict requirements for valve stem sealing. By replacing the packing in ordinary valves with bellows

or using them in combination with packing glands, these valves can achieve zero leakage at the valve stem, preventing

the leakage of radioactive materials, precious metals, or maintaining a high vacuum state. The bellows expand and

contract with the lifting of the valve stem, and their maximum working pressure depends on the pressure resistance and

fatigue strength of the bellows.


Product technical parameters:



Nominal DiameterDN(mm)

DN15DN1500


Nominal PressurePN(MPa)

1.010.0MPa


Test PressurePs(MPa)


Strength Test

1.515.0MPa


eal test

1.111.0MPa

Medium applicable

Water, oil, acid and alkali and other corrosive media

Working temperature

-25℃425℃

Connection method

Flanged type



Product features:


1. Reliable sealing: The bellows of bellows valves have good sealing performance, which can effectively prevent medium leakage.

2. Long service life: The bellows of bellows valves have a long service life, which can reach 500,000 to 1,000,000 life cycles.

3. Light operation: Bellows valves are easy to operate, convenient for opening control, and have a simple structure for easy maintenance.

4. Rich styles: Bellows valves are available in various types, and different styles can be selected according to different uses and media.

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