Double Dump Valve

The Double Dump Valve is designed to handle chunky or fibrous materials that can jam ordinary rotary valves. Its durable construction allows it to move abrasive materials effortlessly. The Darko valve features tandem gates that maintain proper pressure above and below the valve. It also includes a reinforced closure mechanism to prevent air seepage. This double flap valve can operate on air or electricity and requires minimal maintenance.

Key Features

Heavy-Duty Carbon Steel Fabrication: Built to withstand harsh conditions.

Robust Gear Reducer and Cam Mechanism: Ensures reliable and efficient operation.

Optional Stainless Steel Fabrication: Offers additional corrosion resistance.

Low Leakage Air Design: Minimizes air loss and enhances efficiency.

Advantages

Double dump valves minimize wear and tear. Unlike rotary valves, they do not experience air leakage over time. They allow seamless material flow while preventing backflow of air or gas. This is crucial for maintaining system safety and stability.

Typical Applications

You can use double dump valves in various situations, including:

Drop-out box hoppers

Dust collectors

Baghouses

Precipitators

Screw conveyors

Materials Handled

These valves effectively manage a range of materials, such as:

Fly ash

Sawdust

Lime

Wood shavings

Cement

Clinker

Sinter

Sand

As long as the material is granular, non-sticky, and flows freely by gravity, it can be processed by a double dump valve.

Specifications

There are different sizes of double dump valves offered (listed below).

Applicable media	Operating temperature	Ash discharge capacity
dry powder	150℃	1.5-300m3/h

DN	D1	D	H	H1	L	n-d	Ash discharge capacity m3/h	Transmission model	Opening and closing frequency/min	power kw
150	196	226	460		1400	6-Φ11	1.5~2	BWY-15-59	25	0.6
200	245	280	580		1500	8-Φ11	4~5	BWY-15-59	25	0.6
220	265	300	580		1540	8-Φ11	5~7	BWY-15-59	25	0.6
250	300	340	580		1610	12-Φ11	5~8	BWY-15-59	21	0.8
300	350	390	620		1840	12-Φ13	7~12	BWY-15-59	21	1.1
320	370	410	700		1980	12-Φ13	9~15	BWY-15-59	21	1.1
400	450	490	800	660	2060	12-Φ13	12~15	BWY-15-59	12	1.66
450	500	540	800	740	2180	12-Φ13	16~34	BWY-15-59	12	1.66
500	560	600	950	800	2210	12-Φ13	20~45	BWY-15-59	12	1.66
600	660	700		920	2310	16-Φ13	34~72	BWY-15-59	12	3.18
720	780	820		1060	2380	16-Φ13	51~110	BWY-15-59	12	3.18
800	870	920		1150	2420	16-Φ13	77~160	BWY-15-59	12	3.18
1000	1080	1140		1450	2640	20-Φ18	150~300	BWY-15-59	8	4.3

Conclusion: Enhance Your Material Handling

Double dump valves perform reliably under harsh conditions. They ensure smooth material flow in manufacturing processes. These valves offer a low-maintenance alternative to rotary valves. They are perfect for applications requiring movement between different pressure environments.

Whether you are processing fly ash, chemical powders, or construction materials, double dump valves provide efficient and safe material handling. They contribute significantly to the infrastructure of our society.