High-Temperature Baffle Door
The high-temperature damper valve (also known as high-temperature baffle valve or desulfurization Flue gas…
Jaw Gate
Also commonly known as Jaw gate, jaw valve, jaw discharge valve, electric jaw gate, arc valve, jaw ash discharge valve, etc., it has a wide range of applications in various industries.
- ISO 9001:2015
- NDA on request
- 1 pc MOQ
- DDP available
About this part
Also commonly known as Jaw gate, jaw valve, jaw discharge valve, electric jaw gate, arc valve, jaw ash discharge valve, etc., it has a wide range of applications in various industries.
The jaw gate uses an electro-hydraulic actuator or electric actuator as the driving device. The actuator pushes a rocker arm, causing the gear to drive the sector-shaped gate plate to rotate along its axis. When the two sector-shaped gate plates open to the sides, the material falls down; after the receiving device is full, the actuator drives the rocker arm to return the sector-shaped gate plates to their original position, thus closing and cutting off the falling material.
Structural Features
The jaw gate is welded from high-quality carbon steel and consists of a main body, sector-shaped gate plates, shaft, gears, seals, and actuator. The structure is uniquely designed and reliable for long-term operation without jamming. Various switching methods can be selected according to on-site requirements. The jaw gate can be selected as electric, electro-hydraulic, pneumatic, or manual depending on different working conditions.
Product Types
- Electric Gate: Uses an electric actuator with overload protection device, allowing for remote control or program control. The reciprocating stroke position can be precisely adjusted and self-locked.
- Electro-hydraulic Gate: Uses an electro-hydraulic actuator, with full hydraulic transmission, allowing for stepless speed regulation of both pushing and pulling forces.
- Pneumatic Gate: Uses a pneumatic actuator, and through accessory combinations, can achieve remote control or on-site control.
Scope of Application
- Product Specifications: 100*100--2000*2000
- Applicable Temperature: ≤350℃
- Discharge Capacity: 1-400 m³/h
- Applicable Voltage: 380V (Standard/Explosion-proof), 400V, 660V (Standard/Explosion-proof)
Jaw gates are widely used in the discharge of materials from silos in industries such as building materials, metallurgy, chemical industry, and glass manufacturing. They are suitable for controlling various bulk materials such as ores, coal, coke, ash, and chemical products with a dry bulk density of ≤2.5 t/m³ (or 5 t/m³, depending on the specific product and working conditions). Simultaneously, in hydraulic engineering, such as water conservancy irrigation, hydropower stations, and ship locks, electro-hydraulic jaw gates are also commonly used as a device for controlling water flow.
Installation and Usage Precautions
- During installation, please pay attention to the direction of media flow indicated on the gate body. When connecting the two flanges, a Sealing gasket must be used, and the bolts must be tightened evenly.
- During operation, please identify the opening and closing direction of the sector gate plate and ensure that the actuator is wired correctly.
Quality documentation included
- Dimensional inspection report (CMM / profile projector) for critical features
- Material certificate with heat number traceability
- Surface finish and hardness records where specified
- Photographic packing record before shipment
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FAQ
Common questions
What products does Lianyungang Huaneng Power Auxiliary Equipment manufacture?
We manufacture power plant dampers (flue gas, desulfurization, high-temperature baffle doors), slide gate valves, blind flange valves, rotary film and sponge iron deaerators, venting silencers, automatic dosing devices, steam-water sampling devices and sampling coolers, coal powder samplers, condensate recovery units, coarse and fine powder separators, and plate / shell-and-tube heat exchangers.
Which certifications does your factory hold?
We are certified to ISO 9001:2015 (quality), ISO 14001:2015 (environmental) and ISO 45001:2018 (occupational health and safety) management systems. We are also a qualified supplier of Sinopec, PetroChina, China Guodian Corporation, China Datang Corporation, CNOOC and Aluminum Corporation of China Limited.
Can you match a damper or valve to our existing ductwork?
Yes — most of our business is retrofit supply. Send us the duct cross-section, design temperature and media, or drawings, templates and photos of the existing installation. Our engineers will dimension the unit, its flange drilling and the actuator interface to bolt directly into your plant.
What leakage performance do your dampers achieve?
Louver-type double-layer dampers with sealing air achieve a leakage rate below 0.5%; fully sealed slide gates and coal mill isolation doors achieve zero internal and external leakage. Every damper is leakage-tested in the works before shipment and a factory acceptance test report is supplied.