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ZGF / GF Series Rotary Airlock Valve
<div class="seo-content" style="font-size:16px;line-height:1.9;color:#333;"> <h2 style="font-size:28px;color:#fd8335;margin-bottom:16px;">ZGF / GF Series Rotary Airlock Valve</h2> <p>The ZGF and GF Series are standard rotary airlock valves for continuous and quantitative discharge of powder and granular materials. They can be used as rotary feeders, rotary airlock feeders or airlock valves in material handling systems.</p> <p><strong>Catalog parameter reference:</strong> ZGF models include 2.8L, 5L, 7L, 9L, 12L, 16L and 25L per revolution. GF models include 6L, 8L, 10L, 12L, 16L, 24L and 25L per revolution.</p> <h3 style="font-size:22px;color:#333;margin-top:24px;">Typical Applications</h3> <ul style="padding-left:22px;"> <li>Silo unloading and controlled discharge</li> <li>Powder and granule feeding</li> <li>Dust collection systems</li> <li>Gravity flow and pneumatic conveying lines</li> <li>Chemical, food, feed, drying and powder processing applications</li> </ul> <p style="margin-top:22px;"><strong>Need model selection support?</strong> Send FUWEI your material name, particle size, bulk density, temperature, capacity, pressure difference and flange standard. We will recommend a suitable rotary valve model for your process.</p> </div>
ZGFWF / DN Series Rotary Airlock Valve
<div class="seo-content" style="font-size:16px;line-height:1.9;color:#333;"> <h2 style="font-size:28px;color:#fd8335;margin-bottom:16px;">ZGFWF / DN Series Rotary Airlock Valve</h2> <p>The ZGFWF / DN Series is designed for pneumatic conveying and larger-capacity feeding applications. It helps feed materials evenly into the conveying pipeline while maintaining airlock performance.</p> <p><strong>Catalog parameter reference:</strong> 2L to 50L per revolution; catalog reference includes 24 rpm speed, 0.75 kW to 3 kW motor options and 280 C working temperature.</p> <h3 style="font-size:22px;color:#333;margin-top:24px;">Typical Applications</h3> <ul style="padding-left:22px;"> <li>Positive-pressure and negative-pressure pneumatic conveying</li> <li>Stable feeding into conveying pipelines</li> <li>Powder, granule and bulk solid handling</li> <li>Applications requiring larger volume per revolution</li> <li>Chemical, pharmaceutical, feed, pet food and new energy systems</li> </ul> <p style="margin-top:22px;"><strong>Need model selection support?</strong> Send FUWEI your material name, particle size, bulk density, temperature, capacity, pressure difference and flange standard. We will recommend a suitable rotary valve model for your process.</p> </div>
ZGFWE Square Flange Rotary Valve
<div class="seo-content" style="font-size:16px;line-height:1.9;color:#333;"> <h2 style="font-size:28px;color:#fd8335;margin-bottom:16px;">ZGFWE Square Flange Rotary Valve</h2> <p>The ZGFWE Series is a square flange rotary valve for equipment layouts that require square inlet and outlet connections. It provides controlled discharge and stable feeding for powder and granular materials.</p> <h3 style="font-size:22px;color:#333;margin-top:24px;">Typical Applications</h3> <ul style="padding-left:22px;"> <li>Square flange connection systems</li> <li>Powder and granule discharge</li> <li>Customized installation dimensions</li> <li>Material handling equipment with square inlet/outlet design</li> <li>Pneumatic conveying and gravity flow applications</li> </ul> <p style="margin-top:22px;"><strong>Need model selection support?</strong> Send FUWEI your material name, particle size, bulk density, temperature, capacity, pressure difference and flange standard. We will recommend a suitable rotary valve model for your process.</p> </div>
Positive Pressure Conveying Rotary Valve - Horizontal Blowing
<div class="seo-content" style="font-size:16px;line-height:1.9;color:#333;"> <h2 style="font-size:28px;color:#fd8335;margin-bottom:16px;">Positive Pressure Conveying Rotary Valve - Horizontal Blowing Type</h2> <p>This rotary valve type is designed for positive pressure pneumatic conveying systems. The horizontal blowing structure helps feed materials into the pipeline and support stable gas-solid conveying.</p> <h3 style="font-size:22px;color:#333;margin-top:24px;">Typical Applications</h3> <ul style="padding-left:22px;"> <li>Positive pressure pneumatic conveying</li> <li>Horizontal material feeding into pipelines</li> <li>Powder and granule transportation</li> <li>Systems requiring controlled airlock feeding</li> <li>Chemical, drying, powder, feed and new energy applications</li> </ul> <p style="margin-top:22px;"><strong>Need model selection support?</strong> Send FUWEI your material name, particle size, bulk density, temperature, capacity, pressure difference and flange standard. We will recommend a suitable rotary valve model for your process.</p> </div>
High Temperature Rotary Airlock Valve
<div class="seo-content" style="font-size:16px;line-height:1.9;color:#333;"> <h2 style="font-size:28px;color:#fd8335;margin-bottom:16px;">High Temperature Rotary Airlock Valve</h2> <p>FUWEI high temperature rotary airlock valves are used for discharge and feeding applications where the material or process temperature is higher than ordinary working conditions.</p> <h3 style="font-size:22px;color:#333;margin-top:24px;">Typical Applications</h3> <ul style="padding-left:22px;"> <li>Drying systems</li> <li>Hot powder or granule discharge</li> <li>High-temperature process equipment</li> <li>Chemical and material processing lines</li> <li>Applications requiring heat-resistant rotary valve design</li> </ul> <p style="margin-top:22px;"><strong>Need model selection support?</strong> Send FUWEI your material name, particle size, bulk density, temperature, capacity, pressure difference and flange standard. We will recommend a suitable rotary valve model for your process.</p> </div>
Positive Pressure Conveying Rotary Valve - Vertical Dropping
<div class="seo-content" style="font-size:16px;line-height:1.9;color:#333;"> <h2 style="font-size:28px;color:#fd8335;margin-bottom:16px;">Positive Pressure Conveying Rotary Valve - Vertical Dropping Type</h2> <p>This type is used for material dropping and feeding in positive pressure pneumatic conveying systems. It supports continuous discharge while reducing air leakage between pressure zones.</p> <h3 style="font-size:22px;color:#333;margin-top:24px;">Typical Applications</h3> <ul style="padding-left:22px;"> <li>Vertical material dropping</li> <li>Positive pressure pneumatic conveying</li> <li>Airlock feeding for powder and granules</li> <li>Silo discharge and conveying pipeline feeding</li> <li>Chemical, feed, powder and new energy applications</li> </ul> <p style="margin-top:22px;"><strong>Need model selection support?</strong> Send FUWEI your material name, particle size, bulk density, temperature, capacity, pressure difference and flange standard. We will recommend a suitable rotary valve model for your process.</p> </div>
Non-Metal Contact Rotary Valve
<div class="seo-content" style="font-size:16px;line-height:1.9;color:#333;"> <h2 style="font-size:28px;color:#fd8335;margin-bottom:16px;">Non-Metal Contact Rotary Valve</h2> <p>This rotary valve type is designed for processes where metal contact with the material should be avoided. It can be considered for special powder handling, material protection or process cleanliness requirements.</p> <h3 style="font-size:22px;color:#333;margin-top:24px;">Typical Applications</h3> <ul style="padding-left:22px;"> <li>Applications where metal contact is prohibited</li> <li>Powder and granule material protection</li> <li>Special process requirements</li> <li>Customized inner cavity or contact-surface design</li> <li>Chemical, food, pharmaceutical or new material handling</li> </ul> <p style="margin-top:22px;"><strong>Need model selection support?</strong> Send FUWEI your material name, particle size, bulk density, temperature, capacity, pressure difference and flange standard. We will recommend a suitable rotary valve model for your process.</p> </div>
Internal Coated Rotary Valve
<div class="seo-content" style="font-size:16px;line-height:1.9;color:#333;"> <h2 style="font-size:28px;color:#fd8335;margin-bottom:16px;">Internal Coated Rotary Valve</h2> <p>Internal coated rotary valves use special inner wall spraying or surface treatment to isolate direct metal contact and meet special material handling requirements.</p> <h3 style="font-size:22px;color:#333;margin-top:24px;">Typical Applications</h3> <ul style="padding-left:22px;"> <li>Materials requiring isolated metal contact</li> <li>Special inner cavity surface treatment</li> <li>Powder and granule feeding</li> <li>Chemical, food, pharmaceutical and new material systems</li> <li>Customized surface protection requirements</li> </ul> <p style="margin-top:22px;"><strong>Need model selection support?</strong> Send FUWEI your material name, particle size, bulk density, temperature, capacity, pressure difference and flange standard. We will recommend a suitable rotary valve model for your process.</p> </div>
Quick Disassembly Rotary Valve
<div class="seo-content" style="font-size:16px;line-height:1.9;color:#333;"> <h2 style="font-size:28px;color:#fd8335;margin-bottom:16px;">Quick Disassembly Rotary Valve</h2> <p>Quick disassembly rotary valves are designed for easier cleaning, inspection and maintenance. The structure helps operators access the rotor and inner cavity more conveniently.</p> <h3 style="font-size:22px;color:#333;margin-top:24px;">Typical Applications</h3> <ul style="padding-left:22px;"> <li>Frequent cleaning and maintenance</li> <li>Easy rotor inspection</li> <li>Powder handling systems requiring fast access</li> <li>Food, feed, pharmaceutical and pet food applications</li> <li>Production lines where downtime reduction is important</li> </ul> <p style="margin-top:22px;"><strong>Need model selection support?</strong> Send FUWEI your material name, particle size, bulk density, temperature, capacity, pressure difference and flange standard. We will recommend a suitable rotary valve model for your process.</p> </div>
Y-Type Three-Way Ball Directional Control Valve
FUWEI Y-Type three-way ball directional control valve is designed to switch material flow direction in Y-shaped pipelines. It is suitable for powder, granule and solid material conveying systems in chemical, plastic, metallurgy, mining, building materials, glass, ceramic, food, beverage and environmental protection industries. Selection range: DN50-DN350, PN 1.0 MPa to PN 2.5 MPa or ANSI CL150, -29°C to 200°C, flange connection, manual, pneumatic or electric drive.
Butterfly Valve
FUWEI butterfly valves are used for shut-off, flow switching and flow control in gas, liquid, powder and corrosive media systems. Main selection reference: TBD / TBD2 / TBD3 / TB-400 / TB-300 / TBDF. Typical applications include Powder conveying and discharge, Gas and liquid pipelines, Steam and oil service, Corrosive liquid handling, High-frequency industrial switching. Please confirm medium, size, pressure, temperature, connection standard and actuator requirements for model selection.
Ball Valve
FUWEI ball valves support shut-off, switching and material flow control for gas, liquid, powder, slurry and corrosive media. Main selection reference: TBQ / TBQ5 / TBQF / TBQC / TBQ3KF / TBQFD / TBQT. Typical applications include Powder and slurry conveying, Gas and liquid shut-off, Corrosive chemical media, High abrasion service, Vacuum or full-bore flow systems. Please confirm medium, size, pressure, temperature, connection standard and actuator requirements for model selection.
Ceramic Valve
FUWEI ceramic valves are designed for high-abrasion powder, slurry and granular media where long wear life and reliable sealing are required. Main selection reference: TBQTC / TBQCY / TB-200. Typical applications include High-abrasion powder conveying, Slurry pipelines, Granular material handling, Erosion-prone process positions, Pneumatic conveying and ash handling. Please confirm medium, size, pressure, temperature, connection standard and actuator requirements for model selection.
Sanitary Valve
FUWEI sanitary valves use quick-clamp connection for clean, convenient installation in powder, slurry and hygienic material handling systems. Main selection reference: TBDS. Typical applications include Food and beverage powder handling, Pharmaceutical and fine chemical processes, Hygienic slurry pipelines, Quick-clean production lines, Compact automated shut-off positions. Please confirm medium, size, pressure, temperature, connection standard and actuator requirements for model selection.
Knife-Gate Valve
FUWEI knife-gate valves are used for cutting off granular and powder media in industrial pipelines and material handling systems. Main selection reference: TBDZ. Typical applications include Powder discharge, Granular material shut-off, Bulk solid handling, Dust collection and silo systems, Pneumatic conveying line isolation. Please confirm medium, size, pressure, temperature, connection standard and actuator requirements for model selection.
Mother Child Valve
FUWEI mother child valves combine upper and lower valve functions for controlled discharge, batching and sealing in slurry or material handling processes. Main selection reference: TB-700. Typical applications include Slurry discharge and shut-off, Batching and dosing systems, Powder and slurry flow control, Automated material handling, Process positions needing double control. Please confirm medium, size, pressure, temperature, connection standard and actuator requirements for model selection.
Regulating Valve
FUWEI regulating valves are used for modulating flow in gas and liquid systems, with pneumatic or electric actuation available. Main selection reference: TBTJ6. Typical applications include Gas flow regulation, Liquid flow control, Automated process control, Chemical and industrial pipelines, Systems requiring stable modulating control. Please confirm medium, size, pressure, temperature, connection standard and actuator requirements for model selection.
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ZGF / GF Series Rotary Airlock Valve

<div class="seo-content" style="font-size:16px;line-height:1.9;color:#333;"> <h2 style="font-size:28px;color:#fd8335;margin-bottom:16px;">ZGF / GF Series Rotary Airlock Valve</h2> <p>The ZGF and GF Series are standard rotary airlock valves for continuous and quantitative discharge of powder and granular materials. They can be used as rotary feeders, rotary airlock feeders or airlock valves in material handling systems.</p> <p><strong>Catalog parameter reference:</strong> ZGF models include 2.8L, 5L, 7L, 9L, 12L, 16L and 25L per revolution. GF models include 6L, 8L, 10L, 12L, 16L, 24L and 25L per revolution.</p> <h3 style="font-size:22px;color:#333;margin-top:24px;">Typical Applications</h3> <ul style="padding-left:22px;"> <li>Silo unloading and controlled discharge</li> <li>Powder and granule feeding</li> <li>Dust collection systems</li> <li>Gravity flow and pneumatic conveying lines</li> <li>Chemical, food, feed, drying and powder processing applications</li> </ul> <p style="margin-top:22px;"><strong>Need model selection support?</strong> Send FUWEI your material name, particle size, bulk density, temperature, capacity, pressure difference and flange standard. We will recommend a suitable rotary valve model for your process.</p> </div>

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Cast Iron Rotary Airlock Valve for Powder Handling

FUWEI MACHINERY

Cast Iron Rotary Airlock Feeder

Cast Iron Rotary Airlock Feeder for economical rotary feeding and airlock discharge. Built for stable powder discharge, airlock feeding and pneumatic conveying systems.

20+ YearsManufacturing experience

OEM & ODMCustom engineering

ISO9001 & CECertified supply

Product Visuals & Application Scenes

High-contrast industrial presentation aligned with the FUWEI homepage style.

Cast Iron Rotary Airlock Feeder Product Detail

Product DetailFUWEI

Cast Iron Rotary Airlock Feeder Application Scene

Application SceneFUWEI

Why choose this model

Stable discharge

Stable discharge: continuous and quantitative powder or granular material feeding.

Airlock performance

Airlock performance: designed for silo unloading, dust collection and conveying lines.

Custom material

Custom material: cast iron with sealing and surface treatment options.

Typical applications

Cement and building materials
Chemical powder and new materials
Grain, feed and food processing
Dust collection and silo discharge
Positive pressure or gravity conveying systems

Selection parameter table

ZGF parameter table

Model	Volume/rotation	A	B	C	L	H	D1	D2	D3	b1	b2	h	M	N	S	F	d	Hole
2.8L	2.8L/r	165	120	190	180	140	120	190	160	620	260	360	120	150	315	45	25	4-phi9
5L	5L/r	190	140	220	210	160	150	220	190	650	300	400	140	180	345	45	25	4-phi9
7L	7L/r	255	160	250	230	175	170	240	210	710	330	430	175	200	365	45	25	4-phi9
9L	9L/r	250	190	275	255	190	190	260	235	740	360	460	200	220	385	45	25	4-phi9
12L	12L/r	275	210	310	275	205	210	270	255	780	380	510	220	240	410	45	25	6-phi11
16L	16L/r	310	250	340	320	225	250	320	300	840	410	550	260	280	430	45	25	6-phi11
25L	25L/r	345	270	390	320	225	240	320	280	860	410	550	260	260	-	-	-	6-phi11

Dimensions are restored from the catalog image; final flange and hole pattern can be confirmed by project drawing.

GF parameter table

Model	Volume/rotation	A	B	C	L	H	D1	D2	D3	b1	b2	h	M	N	S	F	d	Hole
6L	6L/r	165	120	190	180	140	120	190	160	620	260	360	120	150	315	45	25	4-phi9
8L	8L/r	190	140	220	210	160	150	220	190	650	300	400	140	180	345	45	25	4-phi9
10L	10L/r	255	160	250	230	175	170	240	210	710	330	430	175	200	365	45	25	4-phi9
12L	12L/r	250	190	275	255	190	190	260	235	740	360	460	200	220	385	45	25	4-phi9
16L	16L/r	275	210	310	275	205	210	270	255	780	380	510	220	240	410	45	25	6-phi11
24L	24L/r	310	250	340	320	225	250	320	300	840	410	550	260	280	430	45	25	6-phi11
25L	25L/r	345	270	390	320	225	240	320	280	860	410	550	260	260	-	-	-	6-phi11

GF series follows the catalog dimension structure with different per-turn volume range.

Selection information to confirm

Material name, particle size, bulk density, moisture and temperature.
Required capacity, pressure difference, conveying method and installation direction.
Body material, seal material, flange standard, actuator type and control requirement.
Special requirements such as wear resistance, high temperature, explosion-proof motor or inner coating.

Rotary Valve Solutions by Industry

Explore material-handling requirements and recommended FUWEI rotary valve configurations for your industry.

Chemical & Pharmaceutical Feed & Pet Food Food Processing New Energy Plastics Power & Construction

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Selection & Application FAQ

This cast iron rotary airlock feeder is designed for stable feeding and discharge in powder handling, dust collection and pneumatic conveying systems.