As a specialized manufacturer, the Silo Slide Gate Valve designed and produced by Jiangteng strictly adheres to the ANSI Class VI zero-leakage standard. Featuring a precision sealing design and manufacturing process, it provides safe, durable, and energy-efficient fluid control solutions for sectors such as petrochemicals, municipal water services, power and energy, and food and pharmaceuticals.
Jiangteng is a professional manufacturer of silo slide gate valves. Backed by extensive project and industry experience, we provide tailored solutions designed for specific operating conditions. Our equipment is easy to maintain, minimizes downtime, and helps drive higher production efficiency.
Product Features
1. Triple-Layer Sealing Protection System
The Silo Slide Gate Valve employs a triple-layer protection system comprising a primary gate seal, an upper stem seal, and a self-sealing middle flange.
The stem sealing assembly features a triple O-ring configuration combined with a dust-proof design, ensuring zero external leakage even during frequent cycling. All products undergo rigorous testing at 1.1 times the nominal pressure.
2. Smooth Flow and Energy Efficiency
The valve features a full-bore, straight-through flow path design with a flow resistance coefficient of less than 0.3, delivering over 40% higher flow efficiency compared to standard gate valves.
3. Reduced Maintenance Costs
Core components are manufactured using highly wear-resistant materials and precision machining, achieving an operational lifespan of ≥5,000 cycles.
An optimized drive mechanism ensures effortless operation; with proper maintenance, the valve offers a total service life exceeding 15 years.
4. Robust and Versatile
The equipment supports an operating temperature range of -196°C to 1200°C and a pressure range of PN2.0 to PN42.0 MPa.
A wide range of materials (stainless steel, alloy steel, etc.) and sealing options (EPDM, FKM, metal-to-metal hard sealing) are available to suit extreme media and installation environments.
Operating Principle
The Silo Slide Gate Valve is driven by a handwheel or actuator. The precision trapezoidal threads on the stem convert rotary motion into linear movement, smoothly disengaging or pressing the gate against the sealing surface.
Fully open: The flow path is completely unobstructed, offering low resistance.
Closed: The wedge structure utilizes self-locking compression, while the parallel structure employs pressure-assisted sealing, ensuring a tight fit between sealing surfaces.
Product Design and Manufacturing
1. Dual-mold injection and vulcanization process
This process ensures the sealing rubber fully encapsulates the metal core without dead zones, creating a secure bond that prevents leakage caused by interface defects.
2. Mirror-finish sealing surfaces
Valve seat sealing surfaces undergo high-precision grinding, achieving a surface roughness of Ra 0.8 μm and a mating tolerance of ≤0.02 mm; this ensures uniform contact and long-lasting sealing performance.
3. Anti-corrosion internal coating
The valve interior is coated with food-grade, non-toxic epoxy resin that complies with drinking water hygiene standards, making it particularly suitable for the food, pharmaceutical, and municipal water supply sectors.
4. Modular design
Wear parts (such as seals) can be replaced in as little as 20 minutes without removing the entire valve, thereby minimizing downtime for maintenance.
Technical Specifications
Slide Gate Valve
Round opening specifications
φ 100mm-5000mm
Square opening specifications
Develop interfaces based on client specifications
Connection method
Flange/Weld
Operating temperature
-30°C-600°C
Design pressure
±5000Pa
(Customized for high-pressure applications)
Leakage rate
≤1%-zero leakage
Applicable media
Flue gas, dust-laden gas, cold/hot air,
powdered material
Note: Use the handwheel for heights less than 1.7 meters above ground level;
use the chain wheel for heights greater than 1.7 meters.
Pneumatic Slide Gate Valve
C
B
A
C1×C1
B1
A1×A1
H1
H
N- φ
φ 200
260
φ 300
200×200
250
300×300
200
200
8- φ 11
φ 220
280
φ 320
220×220
270
320×320
200
200
8- φ 11
φ 240
300
φ 340
240×240
290
340×340
200
200
8- φ 13
φ 260
320
φ 360
260×260
310
360×360
200
200
8- φ 13
φ 280
340
φ 380
280×280
330
380×380
200
200
8- φ 17
φ 300
360
φ 400
300×300
350
400×400
200
200
8- φ 17
φ 320
380
φ 420
320×320
370
420×420
200
200
8- φ 17
φ 340
400
φ 440
340×340
390
440×440
200
200
8- φ 17
φ 400
460
φ 500
400×400
450
500×500
220
220
8- φ 17
φ 440
500
φ 540
440×440
495
550×550
220
220
12- φ 17
φ 500
560
φ 610
500×500
555
610×610
220
220
12- φ 17
φ 540
600
φ 650
540×540
600
650×650
220
220
12- φ 17
φ 600
660
φ 720
600×600
660
720×720
240
240
12- φ 20
φ 650
720
φ 770
650×650
720
770×770
240
240
12- φ 20
φ 700
770
φ 820
700×700
765
820×820
240
240
12- φ 20
φ 750
820
φ 870
750×750
825
870×870
240
240
12- φ 20
φ 800
870
φ 930
800×800
870
930×930
270
270
12- φ 20
What Are the Applications of Silo Slide Gate Valves?
1. Municipal Waterworks
Silo Slide Gate Valves can be used in water supply trunk networks, effectively reducing leakage rates.
The non-rising stem design facilitates underground installation while providing an above-ground opening indicator.
2. Petrochemical Industry
To address corrosive challenges in this sector, valves featuring Hastelloy bodies and fluororubber seals can be used; they ensure stable, leak-free operation for over two years, safeguarding production safety and continuity.
3. Food and Pharmaceuticals
The smooth, non-toxic internal surfaces comply with relevant FDA and GB/T 17219 standards, ensuring the purity of fluid transport and eliminating contamination risks.
4. Fire Protection Systems
The products hold FM certification and have passed 120-minute fire resistance tests, ensuring an unobstructed fire-fighting water supply during emergencies.
5. Power and Energy
Capable of withstanding the high-temperature, high-pressure steam found in power plants, these valves offer long-term sealing stability and serve as critical components for the reliable operation of power generation units.
FAQ
Q: How reliable is the zero-leakage performance of the Silo Slide Gate Valve?
A: Jiangteng guarantees and tests for zero leakage in compliance with ANSI Class VI standards, utilizing a triple-seal design and precision manufacturing processes.
Q: How do I select the right valve for specialized media?
A: Please provide details regarding the medium type, concentration, temperature, and pressure.
We will recommend the appropriate combination of valve body materials (e.g., 316L stainless steel, Hastelloy) and sealing materials (e.g., PTFE, specialized metal seals).
Q: Is the valve easy to maintain?
A: Yes, thanks to our modular design. Replacing the most common seals typically takes only 20–30 minutes without requiring the valve to be completely removed from the pipeline, significantly reducing downtime.
Q: Do you offer automated control solutions?
A: Certainly. We provide options for electric and pneumatic actuators and can integrate IoT modules to enable remote monitoring, automatic control, and fault early-warning capabilities.
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