I. Product Introduction of Pneumatic Pinch Valves

II. Main Product Types

1. Classified by connection method

   • Flanged pneumatic pinch valve: firm connection and stable pressure resistance, suitable for mine main pipelines and large-diameter pipelines

   • Wafer-type pneumatic pinch valve: compact structure and easy installation, suitable for branch pipelines with narrow space

2. Classified by the material of the rubber sleeve

   • Wear-resistant natural rubber sleeve: Suitable for ordinary mineral slurry and tailings mud, with excellent erosion resistance and elasticity

   • Acid-alkali resistant synthetic rubber sleeve: Suitable for acidic and alkaline leached mineral pulp, with corrosion resistance and long service life

   • Reinforced wear-resistant rubber sleeve: Designed for high-concentration coarse particle slurries, with superior tear resistance and wear resistance.

III. Core Components

• Rubber sleeve: The core vulnerable part of the pinch valve, integrally molded with special wear-resistant/corrosion-resistant rubber, easy to replace

• Pneumatic actuator: Driven by an air cylinder, it features stable operation, quick opening and closing, and is compatible with remote automatic control systems.

• Valve body: Made of cast steel, with high structural strength, which protects the rubber sleeve and provides extrusion support.

• End covers, fasteners and brackets: standardized parts with firm installation and strong versatility

• Pneumatic control accessories: solenoid valves, limit switches, air source triplets, etc., which can realize automatic control and status feedback

IV. Product Performance Features

1. Straight-through flow channel without clogging

   No gate plate or valve core inside, and the smooth rubber sleeve flow channel does not stick materials or jam particles, completely solving the problem of slurry blocking the valve

2. Excellent sealing performance

   It seals by the deformation of the rubber sleeve, with no risk of leakage, and can achieve reliable sealing even if the medium contains impurities.

3. Strong wear and corrosion resistance

   The special rubber sleeve resists scouring by ore slurry particles and acid-base corrosion, with a service life far superior to that of metal-sealed valves.

4. Stable and efficient pneumatic drive

   The cylinder actuator opens and closes quickly, supports remote automatic control, is suitable for mine automation pipeline systems, and is labor-saving to operate.

5. Easy maintenance and low cost

   It can be put back into use only by replacing the rubber sleeve without disassembling the valve body, which greatly reduces maintenance time and operation and maintenance costs.

6. Widely applicable to working conditions

   It can work stably for a long time in slurry media with high concentration, high viscosity, containing particles and corrosive.

V. Scope of Application

• Applicable industries: Metal mine beneficiation, tailings transportation, coal washing and selection, metallurgical chemical industry, environmental protection sludge treatment, sand and gravel slurry transportation

• Applicable media: ore pulp, tailings slurry, acidic/alkaline ore pulp, mud, coal slime, fibrous slurry, solid-containing granular sewage

• Applicable working conditions: On-off control of slurry pipelines, tailings dry-discharge systems, feed pipelines of filter presses, and corrosive medium pipelines

VI. Standard Product Specifications (Custom Non-standard Sizes Available)

• Diameter specification: DN25～DN600

• Connection method: Flange type, Wafer type

• Drive mode: Pneumatic (single-acting / double-acting cylinder)

• Valve body material: Cast steel

• Bushing material: Wear-resistant rubber, acid and alkali resistant rubber, enhanced wear-resistant rubber

• Working pressure: Conventional low-pressure / medium-pressure pipelines, and the pressure-bearing specifications can be customized according to working conditions

VII. Core Advantages of Hainan Sikejia Mining Equipment

1. Strong pertinence to working conditions

   Specially designed for mine slurry working conditions, focusing on solving the three major industry pain points of material jamming, wear and tear, and leakage

2. The rubber sleeve formula is mature and durable

   Adopts the wear-resistant/corrosion-resistant rubber formula dedicated to mines, making the rubber sleeve tear-resistant, long-lasting and with low replacement frequency.

3. Pneumatic system is stable and reliable

   The actuator runs smoothly, responds quickly to opening and closing, can work continuously for a long time, and has a low failure rate.

4. Complete specifications and flexible customization

   Pneumatic pinch valves with different calibers, pressures, rubber sleeve materials and actuator types can be customized

5. Direct supply from the manufacturer with high cost performance

   Direct manufacturing without middlemen, in-stock availability for standard models, fast delivery for non-standard products, and complete warranty coverage provided.

VIII. Customization and Service Support

1. We support the customization of special pneumatic pinch valves according to the pipeline caliber, medium characteristics and working condition requirements

2. We provide separate supply services for vulnerable parts such as the rubber sleeves of pinch valves and custom-made services according to drawings.

3. We provide free technical guidance for valve selection, pneumatic system matching, installation and maintenance.

4. We can undertake long-term fixed-point supporting supply for concentrator plants and tailings systems.

IX. Frequently Asked Questions (FAQ)

1. Is the pneumatic pinch valve suitable for conveying high-concentration slurry?

   It is highly suitable. Its straight-through structure without flow resistance prevents material clogging, making it a special valve for slurry and tailings pipelines.

2. Are the only wearing parts of a pinch valve the rubber sleeve?

   Yes, the core wearing part is the rubber sleeve, which is simple and quick to replace with extremely low maintenance costs.

3. Can pneumatic pinch valves be connected to an automatic control system?

   Yes, it can be equipped with solenoid valves and feedback switches to achieve remote automatic control and condition monitoring.

4. What parameters need to be provided for customizing a pneumatic pinch valve?

   Provide parameters such as pipeline diameter, working pressure, medium characteristics and installation method to complete the selection and customization.