FLE-QH-KGV Stainless Steel Flange Multi-turn Explosion-proof Electric Knife Gate Valve
FLE-QH-KGV Stainless Steel Flange Multi-turn Explosion-proof Electric Knife Gate Valve
The multi-turn explosion-proof electric knife gate valve adopts a pressure self-tightening seal, or a valve body and cover gasket sealing structure. The sealing surfaces of the disc and seat are made of cobalt-chromium-tungsten carbide by plasma spray welding. The sealing surface has high hardness and friction-resistant.
Technical Specifications
| Size Range | DN15 to DN500 (1/2”~ 20” Inch) |
| Body/Bonnet Material | CF8, CF3, CF8M, CF3M, WCB, LCB, WC6, WC9, C5 |
| Stem Material | F304, F304L, F316, F316L, 2CR13 |
| Wedge Material | CF8, CF3, CF8M, CF3M, WCB, LCB, WC6, WC9, C5 |
| Seat Material | PTFE, Nylon, PPL |
| Packing | PTFE, Graphite |
| Connection Type | Flange (GB/ANSI/JIS/DIN) |
| Pressure Rating | PN1.0 |
| Temperature Of Medium | -30°C~450°C |
| Electric Actuator | On/Off, Regulation, Intelligent, Multi-Turn, Explosion-proof |
| Applications | Mining, Wastewater Treatment, Pulp & Paper, Chemical Processing etc |
| Actuator Model | Standard Time/Torque | Optional Time/Torque | Rotation Angle Range | Actuator Weight | Power Supply | Optional Control Circuit |
|---|---|---|---|---|---|---|
| FLE-105 | 25S/50Nm | 4S/20Nm 10S/30Nm |
0-90° Adjustable | 2.2kg |
DC24V AC24V AC110V AC220V AC380V |
A type B type C type D type E type F type |
| FLE-110 | 25S/100Nm | 15S/50Nm | 5.1kg | |||
| FLE-116 | 25S/160Nm | 15S/80Nm | 5.1kg | |||
| FLE-120 | 25S/200Nm | 15S/100Nm | 7.5kg | |||
| FLE-140 | 25S/400Nm | 15S/200Nm | 7.5kg | |||
| FLE-160 | 25S/600Nm | 15S/300Nm | 8.1kg | |||
| FLE-1100 | 50S/1000Nm | 25S/500Nm | 12.7kg | |||
| FLE-1200 | 50S/2000Nm | 25S/1000Nm | 12.7kg | |||
| Type | ON/OFF, Regulating, Intelligent | |||||
| Insulation Resistance | 100MΩ/500VDC | |||||
| Dielectric Strength | 1500V AC 1min. | |||||
| Level of Protection | IP67 (IP68 optional) | |||||
| Installed Location | 360° Installation at any Angle | |||||
| Electrical Interface | 2-G1/2 Metal Fitting, the corresponding metal cable joints should be installed according to the selected cables | |||||
| Ambient temperature | -20°C to +60°C | |||||
| Optional Explosion Proof | Ex d II BT4 / CT4 / CT6 Gb | |||||
| Power-loss reset (fail-safe) function | Fail-open, Fail-closed or No-reset (factory-selectable) | |||||
| Optional functions | Overtorque protection, dehumidification heater, passive contact switch, operating handwheel | |||||
Product Benefits & Features
1. Stable Performance for Slurry & Solid Media
•Knife gate valve design enables smooth cutting and shut-off of slurry, muck, and solid-containing media
•Minimal fluid accumulation at the pipeline inlet reduces blockage risk
•Reliable sealing and stable operation under frequent opening and closing
2. Explosion-Proof Electric Actuator with Precise Control
•QH Series mini multi-turn explosion-proof electric actuator
•Available in ON-OFF, feedback, and modulating control types (Type A / B / C)
•Supports 4–20 mA, 1–5 V and customized control signals
•Explosion-proof grade EXD IIB T4 with IP67 protection
3. Robust Materials & Wide Standard Compatibility
•Valve body made of stainless steel with EPDM or PTFE seat materials
•Excellent resistance to corrosion, wear, and temperature variations
•Flanged connections comply with GB / ANSI / DIN / JIS standards
•Suitable for high-pressure, high-temperature, and corrosive applications
4. Easy Maintenance & Long Service Life
•Simple, compact structure with pinless two-section valve stem
•Low torque operation reduces actuator load and mechanical wear
•Easy disassembly shortens maintenance time and minimizes downtime
•Designed for long service life with lower overall operating costs
Why Choose Fleyenda Valve Manufacturing
Product Stability
We use reinforced structures and precision sealing to ensure consistent performance under pressure and temperature changes.
Conpany&Product Certification
We have CE, RoHS, ISO, SIL, TUV, and IP68 waterproof certifications covering safety, quality, and environmental standards.
Projects Experience
Cooperated over 40 countries, we have experience in oil & gas, energy, water, chemicals, food & beverage, and automation.
Customization Capability
With 20 years experience, we turn complex working conditions into precise valve solutions with high speed and accuracy.
Aftersales Support
•We have technical team provides real-time video support to help customers resolve on-site issues quickly.
Customer Cases
Trusted by Shell plc, Petronas, Chevron, TotalEnergies, and Dupont in projects across 40+ countries.
Our Product Actual Export Pictures
FAQs That 80% Users Interest
1.What kinds of customized services can Fleyenda provide?
Private Labeling, Material Selection, dimensions customized, Actuator Options, etc. We also offer fittings and piping for optional.
Fleyenda is committed to providing you with a one-stop service.
2.How does Fleyenda Valve control the products quality?
We have the IPQC and QC process. We regularly do pressure testing, leakage testing, material analysis, and performance testing. Fleyanda Valve holds ISO 9001, CE, and other certifications.
Fleyedna focuses on upgrading production facilities, testing facilities and focuses on innovation to provide customers with high-quality products in the industry.
3. Can you help us to choose the right products?
Yes, We can help you choose the right valves for your needs. To do so, we would need some specific information from you.
-What is the application or industry which the valves will be used (e.g., oil and gas, water treatment, chemical processing)?
-What is the fluid or gas that will be flowing through the valves?
-What is the working pressure and temperature range for the valves?
And so on.
4.How long does it take you to prepare the goods?
We have a large number of products in stock and can be ready within 7 days. Customized products require 30 days of lead time.