Super Purchasing for High Abrasion Metal Wet End Parts Slurry Pump End Parts Water Pump

Our merchandise are broadly identified and trusted by end users and can satisfy continually developing economic and social requires for Super Purchasing for High Abrasion Metal Wet End Parts Slurry Pump End Parts Water Pump, We warmly welcome all intrigued prospects to make contact with us for more details.
Our merchandise are broadly identified and trusted by end users and can satisfy continually developing economic and social requires for Abrasion Pump and Tunnel Boring Machine, Our experience makes us important in our customer eyes. Our quality speaks itself the properties like it do not tangle, shed or breakdown, so that are our customers will always be confident while placing an order.
•Shijiazhuang Boda Industrial Pump Co .,Ltd is the earliest development of shield and special mud pump manufacturers, pipe jacking can produce section 4 m – 17 m slurry balance shield send slurry pump, slurry separation pump, earth pressure shield, TBM with diving sewage pump and sand pump, whole series of works to dredge pump, mini long top work relay pump and so on, is the only company to fully replace imported in China.

•Compared with similar foreign products, its performance, service life and imported products are basically the same, and there are a lot of targeted characteristic design, more adaptability to extreme conditions.Under the special circumstances of hard rock, large particles, impact load, low shaft sealing pressure, micro long distance and so on, the advantages are very obvious.
•Since 2008, Boda shield and pipe jacking pump series products have been tested in the south-to-North Water Diversion project and the Yellow River crossing project of west-to-East gas transmission. Boda has provided supporting pumps for more than 50 national key projects in China, accounting for more than 70% of the domestic market of shield and more than 80% of the global market of pipe jacking.
•Our company also produces foreign products (such as W-a-r-m-a-n, M-e-t-s-o, K-r-e-b-s, H-a-b-e-r-m-a-n-n replacement spare parts, widely used in domestic and foreign construction sites, good results.
DG(H) Relay Pump     
Feature of Product:
-A curved outlet structure to the rear of the pump reduces the volume of the pump and enables it  to be inserted into the jacking tube
-(Hi-chrome white iron) wear parts
-Large channel, can reach only one blade
-Fused carbide coated wear resistant shaft sleeve
-The base is equipped with wheels so that the pump can move freely in the narrow jacking tube
- Split Stuffing Box (ease of maintenance)
-Fused Carbide Coated Wear Resistant Shaft Sleeve
-New type Hi- Seal, less shaft seal leakage
Pump Technical Data:

Note:

DG100 better than H a r b e r m a n n     KB100

DGH125 better than H a r b e r m a n n  KBH125/400

More wear-resistant material, the pump has greater transmission power

1. Core Function of the Shield Tunneling Slurry Circulation System
The slurry shield tunneling system relies on slurry pumps (shield slurry discharge pump / slurry delivery pump / relay pump) to achieve closed-loop slurry transportation, which is the core power equipment for tunnel excavation:

Slurry Shield Tunneling System Diagram

1. Slurry Delivery Pump (Inlet Pump): Pumps the prepared bentonite slurry into the shield’s slurry chamber to balance the soil pressure at the excavation face and prevent collapse; the medium is low-sand diluted slurry.

2. Slurry Discharge Pump (Outlet Pump): The core operating condition, conveying the mixed slurry from the cutterhead cutting, containing sand, clay, and gravel, with a solids content up to 60%. The particles are highly hard, extremely abrasive, and prone to clogging.

3. Tunnel Relay Pump: Used for segmented pressurization during long-distance tunnel excavation (>1km), compensating for insufficient head of a single pump, and extending the transportation distance by connecting multiple pumps in series.

4. Ground-based pumps: Feed pump for the slurry separation station, filter press slurry pump, and slurry conditioning tank circulation pump, to treat shield tunnel waste slurry and achieve slurry recycling.

2. Pain Points of Shield Tunnel Slurry Pump Operation (Core Selection Basis)

 Medium: High-abrasion solid-liquid mixture slurry, particle size 5–180mm, containing quartz sand and rock fragments;

 Operating conditions: Variable frequency speed regulation, frequent start-stop, reversible operation to clear blockages, installation in confined underground spaces;

 Requirements: Wide flow channel to prevent blockage, high-chromium wear-resistant flow components, rear-opening structure for maintenance without disassembling pipelines, high pressure resistance, and multi-stage series connection capability.

II. Overview of Shijiazhuang Boda Industrial Pump Co., Ltd.
Shijiazhuang Boda Industrial Pump Co., Ltd. (established in 2007, Shijiazhuang, Hebei Province) is a professional manufacturer of domestically produced slurry pumps for tunnel boring machines (TBMs) and pipe jacking projects. It is a key supporting unit for TBMs, a national strategic project, and holds multiple utility model patents for TBM slurry pumps:

1. Qualifications: CE export certification, technology-based SME, self-built international Class B precision pump testing platform;

2. Positioning: Complete supplier of wear-resistant slurry pumps for TBM slurry systems and pipe jacking projects;

3. Core Patents: Patents for tunnel-specific pumps such as vertical shaft TBM submersible slurry pumps, micro tunnel large particle slurry pumps, and hydraulic submersible slurry pumps;

4. Supporting Capabilities: Integrated service including complete machine installation, wear-resistant parts, frequency conversion control system, and on-site installation and maintenance. Products are exported to infrastructure projects in Europe, America, and Southeast Asia.

Boda Horizontal Shield Tunneling Slurry Pump

III. Boda Shield Tunneling Dedicated Slurry Pump Product Series and Technical Features

1. Main Product Models

1. G/GH Type Shield Gravel Pump (Horizontal): Comparable to imported Worman GH series, mainstream models include 6/4G, 8/6G, 10/8FF-GH, 12/10G, etc., standard configuration for subway and large-diameter slurry shield tunnels; maximum particle size 180mm, suitable for long tunnel intermediate pressurization.

2. Submersible Tunnel Slurry Pump: Patented product, used in vertical shaft shield tunnels and confined underground spaces, diving depth up to 150 meters, no surface pump house required, simplifying tunnel layout.

3. Micro Pipe Jacking Dedicated Slurry Pump: Small-diameter pipe jacking, integrated pipe gallery micro tunnels, low flow rate, high head, compact body suitable for confined pipe jacking machine compartments.

4. General Purpose AH/HH Slurry Pump: For use with surface slurry separation stations and slurry mixing tanks, covering both high and low head applications. 2. Design Advantages Specific to Tunnel Boring Machine (TBM) Operations

1. Wear-Resistant Flow Components: The impeller, sleeve, and front and rear liner plates are made of Cr26 high-chromium wear-resistant alloy, with hard nickel material optional. They resist sand and gravel erosion and wear, extending service life by 3-5 times compared to ordinary cast iron. The inner liner can be replaced individually, reducing maintenance costs.

2. Wide Flow Channel Anti-Clogging Hydraulic Structure: A large-channel closed impeller + back auxiliary blades prevent mud sedimentation and clay entanglement. Supports forward and reverse rotation; one-button reverse flushing is available in case of pipe blockage.

3. Rear-Pull-Out Maintenance Structure: Maintenance of the impeller and seals does not require disassembly of inlet and outlet pipes, reducing downtime for maintenance by 70% in the confined space of a tunnel and without damaging the TBM pipeline.

4. Flexible Installation Adaptable to Shield Tunneling Sites: The pump body features a 360° adjustable outlet and a quick-release pump casing with clamps; transmission options include a variable frequency motor, hydraulic coupling, and flexible coupling, matching the shield tunneling central control variable frequency linkage; shaft sealing supports three solutions: impeller sealing, mechanical sealing, and packing sealing, adaptable to damp and silty underground environments.

5. Multi-Stage Series Compatibility: The pump body features a pressure-reinforced design, allowing multiple units to be connected in series as tunnel relay pumps, meeting the slurry transport head requirements of ultra-long tunnels exceeding 3km.

IV. Typical Engineering Application Scenarios of Boda Shield Tunneling Slurry Pumps

1. Urban Subway Slurry Shield Tunneling: For high-water-pressure shield tunneling projects crossing rivers and lakes, the 10/8FF-GH main slurry pump + tunnel relay pump is supplied as a complete set, compatible with 6–12m shield machines.

2. Municipal Pipe Jacking/Integrated Pipe Gallery: For large-diameter sewage and power pipe jacking projects, a combination of a horizontal gravel pump and a miniature submersible slurry pump is used, with direct integration into the machine compartment for short-distance pipe jacking.

3. For ultra-large shield tunnels spanning rivers/seas, custom-designed slurry pumps with high flow rates and high lift are used, along with large-scale slurry separation stations, to continuously transport high-concentration sea sand and rock debris slurry.

4. For vertical shield tunnels and underground utility tunnel shaft construction, patented submersible shield slurry pumps are used, eliminating the need for a pump house underground and reducing tunnel construction costs.

5. For shield tunnel slurry zero-discharge treatment stations, AH series slurry pumps are used to transport concentrated slurry through pressure filtration, along with flocculation and dewatering systems. Excavated soil is transported off-site in compliance with standards, and slurry is recycled.

V. Complete Supporting Services (Boda Integrated Solution)

1. Customized Selection: Matching flow rate and head based on shield diameter, tunnel length, and soil aggregate content;

2. Complete Supply: Pump body, variable frequency motor, wear-resistant spare parts, pipeline valves, PLC monitoring and alarm system;

3. On-site Service: Tunnel installation guidance, commissioning, regular replacement of wear-resistant parts, and system energy-saving retrofitting;

4. Spare Parts Guarantee: High-chromium impellers, bushings, shaft sleeves, and seals are kept in stock for rapid supply to tunnel construction sites.