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About UsSpecializing in the production and sales of wear-resistant materials such as cast basalt products, the company has obtained over 20 invention patents and utility model patents, and was awarded the "Shandong Star Enterprise of China Patent" title. The company has a history of over 20 years, and currently owns a single basalt cast basalt production line with a production capacity of 15000 tons/year, and mechanical processing equipment with an annual output of 5000 wear-resistant valves and 20000 clamp-type flexible pipe joints.
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Cast BasaltCast basalt products include cast basalt pipes, cast basalt tiles, cast basalt powder, cast basalt lined steel pipes, etc., mainly used in industries such as electric power, metallurgy, mining, coal, building materials, and chemical.
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ValveCast basalt ball valves are durable, have a long service life, low fluid resistance, reliable sealing, wear and corrosion resistance, and the sealing surfaces of the ball and valve seat are always isolated from the medium during the fully open and fully closed processes of the valve, so that the medium passing through the valve at high speed will not erode the sealing surface.
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Pipe FittingClamp-type flexible pipe joints are used to connect pipes. KRH and KRJ series rolled clamp-type flexible pipe joints are patented products of our factory. They can effectively compensate for thermal expansion and contraction caused by temperature changes in the pipeline system, and can also compensate for angular changes caused by pipeline foundation settlement. They are high-pressure resistant, easy to install, and have a much better price-performance ratio than flange connections.
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BLOGSince its establishment in 1986, the company has cumulatively produced: over 1600 kilometers of cast basalt lined steel pipes; over 260000 sets of flexible pipe joints; over 18000 valves of various types. Its products cover all provinces nationwide and are exported to countries such as South Korea, the United States, Serbia, South Africa, Zimbabwe, Japan, India, Vietnam, Russia, Poland, Ukraine, Kazakhstan, and Australia.
NPZ Wear-resistant Slurry Gate Valve
Description
Purpose And Specification:
Npz Series Wear-Resistant Slag Discharge Gate Valve Is A New Product Recently Developed By Our Factory. The Product Has The Characteristics Of Reasonable Structure, Flexible Opening And Long Service Life. It Is Mainly Suitable For Iron Ore, Molybdenum Ore, Water Ash Removal And Other Conveying Slurry And Slag Water Mixing Systems With Nominal Pressure Less Than 6.4Mpa And Working Temperature ≤ 200 ℃. It Is Used As A New Wear-Resistant Slag Discharge Valve For Idling.
Performance Specification：
| Product Model | Nominal Pressure | Sealing Test Pressure | Strength Test Pressure | Working Temperature | Applicable Media |
| 941 NPZ 41 H-10C 641 |
1.0 | 1.1 | 1.5 | ≤200℃ | Pulp Slag Water |
| 941 NPZ 41 H-16C 641 |
1.6 | 1.76 | 2.4 | ||
| 941 NPZ 41 H-25 641 |
2.5 | 2.75 | 3.8 | ||
| 941 NPZ 41 H-40 641 |
4.0 | 4.4 | 6.0 | ||
| 941 NPZ 41 H-64 641 |
6.4 | 7.04 | 9.6 |
Material Of Main Parts：
| Part Name | Material Science | ||||
| 10C | 16C | 25 | 40 | 64 | |
| Valve Body | WCB（ZG230-450）Stainless Steel | ||||
| Valve Seat | NMS、Alloy | ||||
| Valve Plate | NMS、Alloy+WCB（ZG230-450） | ||||
| Valve Stem | 2Cr13 Or 1Cr18Nf9Ti | ||||
| Stem Nut | Cast Aluminum Bronze ZCuA19Mn₂ | ||||
| Handwheel | QT400-17 | ||||
| Valve Cover | WCB（ZG230-450）Stainless Steel | ||||
Product Inquiry
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Our Advantages
Rich experience
The company currently occupies 56,000 square meters of land with a building area of 18,000 square meters and has a history of over 20 years. Since its establishment in 1986, the company has cumulatively produced: over 1,600 kilometers of cast stone composite pipes; over 260,000 sets of flexible pipe joints; and over 18,000 units of various valves.
Production Capacity
Currently owns a single basalt cast stone production line with a production capacity of 15,000 tons/year and mechanical processing equipment with an annual output of 5,000 wear-resistant valves and 20,000 clamp-type flexible pipe joints.
Industry recognition
Products cover all provinces in China except Tibet and are exported to countries such as South Africa, Zimbabwe, Japan, India, Vietnam, and Australia.
Quality service
Our company has advanced technology and equipment, strong production capacity, and a complete quality assurance system. We have passed ISO9001 and ISO14001 certifications. We have currently obtained more than 20 invention patents and utility model patents and have won the title of "Shandong Star Enterprise of China Patents".
Supplier of wear-resistant material solutions, specializing in cast basalt products
Many years of focus on the production and sales of high-quality wear-resistant materials, mainly used in power, metallurgy, mining, coal, building materials, chemical, and other industries.
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Mobile Website
Contact Us
Phone: +86-535-5632189 / 5666528 / 5637763
Fax: +86-535-5666528 / 5642975
Email: z.minhui@plsczsgdfm.com
Address: No. 6 Zhenxing, Liujiagou Town, Penglai District, Yantai City, Shandong Province
