What industries is this valve suitable for?

It is widely used in building materials, metallurgy, chemical industry, electric power, and environmental protection dust removal equipment as a hopper unloading device.

What is the minimum order quantity?

The minimum order quantity is 1 PCS.

Premium Double Layer Flap Valve for Heavy Industry Bulk Solid Material Handling

Name: Premium Double Layer Flap Valve for Heavy Industry Bulk Solid Material Handling
Brand: Botou Ever Lucky Machinery Co., Ltd.
SKU: 2144159712

Hebei, ChinaBotou Ever Lucky Machinery Co., Ltd.

US$600.00-5,000.00

5 Pieces

Product profile

Customization

Available

Media

Powder

Temperature

High Temperature

Model NO.

flap valve

Type

Direct-acting

Material

Carbon Steel

Connection Form

Flange

Pressure

Ordinary Pressure

Actuator

Pneumatic/Electric/Manual

Seal Surface

Parallel Gate Valve

Thread Position of Valve Rod

Outside Gate Valve

Usage

Flow Control

Standard

DIN

Application

Industrial Usage

Capacity

3-60m3/H

Motor Power

1.1-5.5kw

Drive Unit

Sew / Chinese Brand

Flange Size

200-800mm

Transport Package

Wooden Case

Specification

5m3

Trademark

Origin

China

HS Code

8481804090

Production Capacity

10000sets/Year

Key features

Self-weight Gravity Control: Valve plate opens automatically under material gravity and resets via counterweight lever system.

Double-Layer Gas Lock Design: Upper and lower valves switch alternately to maintain a closed middle state, preventing air turbulence.

Flexible Drive Options: Available with pneumatic, electric, or manual actuators to suit different industrial needs.

Customizable Materials: Choose from stainless steel (SS304, SS316, etc.) or carbon steel based on actual application requirements.

Food Grade Polishing: Polishing accuracy up to 300# makes it suitable for conveying food grade materials safely.

Compact & Reliable Structure: Strong, compact design with no sliding structure, ensuring stable rotation and easy maintenance.

Wide Industrial Application: Ideal for metallurgy, building materials, chemical industry, and power plants for ash discharge and flow control.

Company profile

Importers and ExportersExperienced Team

Botou Ever Lucky Machinery Co., Ltd.

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 12 years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤6.90h

AI-Powered supplier vetting

SummaryEver Lucky Machinery is identified as an environmental machinery manufacturer based in Hebei, with over 20 years of experience covering research, design, manufacturing, installation, commissioning, sales, and after-sales service. It has five production lines, 6–10 quality-control staff, stated output across multiple environmental-equipment product categories, inventory capability, and valid manufacturing contracts with associated subcontractors. The supplier offers broad customization, ODM, and OEM services, but does not provide 3D software design, has not launched a new product in the past year, and has no available SDK. Quality procedures are documented for finished-product inspection and customer complaints, while corrective and preventive action procedures lack written records. The company states that it has BV, SGS, and CE certificates, but the provided information does not specify their scope or validity. Overseas service infrastructure is limited: there are no overseas agents, branches, warehouses,...

Supplier typeThe supplier is explicitly described as a professional environmental machinery manufacturer engaged in research, design, manufacturing, sales, installation, commissioning, and after-sales service. Its stated location is Botou City in Hebei, and its company description emphasizes manufacturing operations and quality control.

R&D capabilityThe supplier provides ODM services and has broad design-related customization options, but reports no new products in the past year, no 3D software design service, and no available SDK. These stated limitations prevent a positive assessment of current innovation capability.

Production capacityThe supplier operates five production lines, has 6–10 quality-control staff, reports defined annual output for screw conveyors, rotary valves, dust collectors, drag conveyors, and bucket elevators, and maintains inventory capability. It also has valid manufacturing contracts with each related subcontractor and uses CNC bending, laser-cutting, and CNC machining equipment.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, flexible customization, ODM services, and OEM services for popular brands. This provides direct evidence of broad customization and contract-manufacturing capability, although 3D software design is not available.

Product Q&A

Q:How does the double flap valve prevent air turbulence?

It uses switches at different times for the upper and lower valves to keep the middle of the device in a closed state, effectively preventing air turbulence and wild wind from blowing in.

Q:What materials are available for this valve?

You can choose from various main materials including stainless steel (SS304, SS304L, SS316, 316L, SS836L) and carbon steel, depending on your actual needs.

Q:What drive methods are supported?

The valve supports multiple drive methods including pneumatic, electric, and manual actuators to meet different operational requirements.

Q:Can this valve be used for food grade materials?

Yes, the polishing accuracy can reach up to 300#, making it suitable for conveying food grade materials.

Q:What is the working principle of the double-layer ash discharge valve?

It adopts mechanical transmission where the upper valve opens by mechanical transmission and closes by balance weight, then the lower valve opens by mechanical transmission and closes by balance weight, completing one unloading cycle.