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Wear Resistant Plunger Valve for Underground Mining Hydraulic Support, Reliable Sealing, Coal Mine Pipeline
Product Spotlights
Shanghai Zhibang's wear-resistant plunger valve offers reliable sealing, extended service life, and low maintenance for underground mining hydraulic support systems. Customizable materials, ISO9001 certified, and backed by a global export network. Ideal for coal mine pipelines operating under high pressure and abrasive conditions.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Other, High-strength alloy steel / Stainless steel
Function:
Other, Flow control, pressure relief, and reliable sealing
Nominal Pressure:
Up to 40 MPa (customizable)
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, High-strength alloy steel / Stainless steel
Function
Other, Flow control, pressure relief, and reliable sealing
Nominal Pressure
Up to 40 MPa (customizable)
Connection Type
Flanged / Threaded / Welded
Seal Material
Polyurethane / Nitrile rubber / PTFE
Application
Underground mining hydraulic support systems, coal mine pipelines
Color
Blue / Red / Black (customizable)
Operating Temperature
-20°C to +120°C
Standards
ISO9001:2015 certified
Size Range
DN15 – DN200 (customizable)
Shanghai Zhibang Valve Manufacture Co., Ltd. has been dedicated to developing high-performance fluid control solutions since 2016. Our Wear Resistant Plunger Valve is specifically engineered for the demanding environment of underground mining hydraulic support systems. Combining advanced material science with precision manufacturing, this valve delivers exceptional sealing reliability even under extreme pressure, abrasive particles, and corrosive mine water. It is a critical component for coal mine pipelines, ensuring safe and efficient operation of hydraulic supports.
Built with a robust plunger mechanism, this valve minimizes leakage and wear, reducing maintenance downtime. The wear-resistant coating and customizable seal materials allow it to withstand continuous cycling in harsh underground conditions. Whether used for pressure control, directional flow, or emergency shut-off, our plunger valve provides consistent performance that mine operators can trust.
Key Features & Technical Specifications
- Exceptional Wear Resistance: The plunger surface is treated with a hard chrome plating or ceramic coating, achieving a surface hardness of HRC 60+ and extending service life by 3–5 times compared to standard valves.
- Reliable Sealing Performance: Multi-stage sealing system with O-ring and lip seal combination ensures zero leakage at pressures up to 40 MPa. Seals are replaceable without disassembling the entire valve.
- Corrosion & Abrasion Protection: All internal passages are lined with corrosion-resistant alloy or rubber, resisting erosion from mine water containing high chloride, sulfate, and fine particles.
- Compact & Lightweight Design: Optimized structure reduces weight by 15% while maintaining full pressure rating, making installation and maintenance easier in confined underground spaces.
- Easy Maintenance: Modular design allows quick replacement of seals and plunger assembly without special tools. All standard parts are available from stock.
- Customizable Options: Available in various end connections (flanged, threaded, welded), different plunger stroke lengths, and with optional position indicators or solenoid pilot control.
| Parameter | Value |
|---|---|
| Nominal Pressure | 10 – 40 MPa (1450 – 5800 psi) |
| Nominal Size | DN15 – DN200 (½” – 8”) |
| Operating Temperature | -20°C to +120°C (-4°F to 248°F) |
| Connection Type | Flanged (ANSI/ DIN), Threaded, Welded |
| Seal Material | Polyurethane, Nitrile, PTFE, Viton (optional) |
| Body Material | Carbon steel with epoxy coating, 304/316 stainless steel, or duplex alloy |
| Leakage Rate | Zero leakage (ISO 5208 Class A) |
Advantages for Your Mining Operations
- Reduced Downtime: The wear-resistant plunger and robust seals drastically cut unplanned maintenance intervals. Mines report up to 40% reduction in valve-related downtime after switching to our plunger valves.
- Enhanced Safety: Reliable sealing prevents hazardous fluid leaks that could cause hydraulic support failure or environmental contamination. The valve meets strict mine safety standards.
- Lower Total Cost of Ownership: Initial investment pays off quickly due to longer service life and lower spare part consumption. Each valve is tested at 1.5 times the rated pressure before shipment.
- Compatibility: Designed to retrofit existing hydraulic support systems from major OEMs (e.g., Caterpillar, Komatsu, Sandvik). Adapter plates and custom flanges available upon request.
- Global Support: With annual export value of US$1–1.5 million, we serve over 15 international markets. Our team provides technical documentation, installation guidance, and after-sales support via email or video call.
Trust & Credibility
Shanghai Zhibang Valve Manufacture Co., Ltd. is a certified ISO9001:2015 manufacturer with a dedicated R&D team. Since 2016, we have supplied wear-resistant valves to mining operations across North America, South America, Europe, Africa, and Asia. Our factory in Shanghai, China, utilizes advanced CNC machining centers and automated testing equipment. Every plunger valve undergoes a 100% pressure test, seal integrity test, and material verification before shipping.
We ship from Shanghai, Guangzhou, Hong Kong, and Beijing ports, ensuring fast delivery to your project site. Our main markets include the domestic China market as well as international regions. We are committed to providing reliable products that meet the high standards of the mining industry. Contact us today for a quote or technical proposal – our engineers are ready to customize a solution for your specific hydraulic support system.
Frequently Asked Questions (FAQ)
-
Q: What is the typical lifespan of this plunger valve in a coal mine?
A: Under normal operating conditions with proper maintenance, the valve can last 2–3 years before requiring major seal replacement. The wear-resistant plunger itself often lasts 5+ years. -
Q: Can this valve handle high water pressure fluctuations?
A: Yes, it is designed for pressures up to 40 MPa and can handle frequent pressure spikes common in hydraulic support systems. The multi-stage sealing prevents damage from pressure surges. -
Q: Is the valve compatible with existing hydraulic oil or water-based fluids?
A: Absolutely. The seal materials are available for both mineral oil and water-glycol/emulsion fluids. Please specify your fluid type when ordering for optimal seal selection. -
Q: Do you provide samples for testing before bulk order?
A: Yes, we offer sample valves (size DN15–DN50) at a reasonable cost. The sample price will be deducted from your first production order. Lead time for samples is 7–15 days. -
Q: What is the minimum order quantity (MOQ)?
A: For standard sizes, MOQ is 5 pieces. For customized sizes or special materials, MOQ may be 10–20 pieces. We are flexible for trial orders. -
Q: How do you ensure the valve is corrosion-resistant for acidic mine water?
A: We offer stainless steel body (316L) or carbon steel with a high-performance epoxy coating. Internal seals are made of PTFE or Viton, which resist chemical attack. We can also apply a ceramic lining for extreme conditions. -
Q: What is the warranty period?
A: Our standard warranty is 12 months from the date of shipment, covering defects in material and workmanship. Extended warranty options are available upon request. -
Q: Can you provide the valve with a solenoid pilot for remote control?
A: Yes, we can integrate solenoid pilot heads (24V DC or 110V AC) for remote operation. Please contact our sales team with your control system specifications.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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