Dongguan HydroBlue Co., Ltd.
| Torque | 62-6500 |
| Pump Model. | Mc/MD/G Sg/CD8/Bbtd/Msd/Mca/Mce/Mcv |
| Type | Coupling |
| Material Standard | ASTM, ANSI, SAE, Uns, DIN, En, ISO, Toct |
| Certificate | ISO9001:2015, ISO14001:2004, API Specification Q1 |
| Material | Carbon Steel+Plastic |
| Material 1 | Cast Iron, Wear-Resistant Cast Iron, Cast Steel |
| Pump Model | APP/Wpp/EPP/Aup/Zpp/CPT/Ohhl |
| Types of Welding Parts | OEM/ODM |
| Material 2 | Stainless Steel, Duplex Ss, Cast Alloy Steel |
| Structure | Flexible |
| Pump Package | Carton and Wooden Cases |
| Mould | Investment Casting Mould, Sand Casting Mould |
| Speed | 1000-5400 |
| Origin | China |
| Testing | Dynamic Balancing |
| HS Code | 84139100 |
| Production Capacity | 10, 000 Tons Per Year |
| Specification | According to the drawings |
| Bore Diameter | 10-165 |
| Model NO. | Coupling |
| Transport Package | Carton and Wooden Cases |
View Detail Information
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Product Specification
| Torque | 62-6500 | Pump Model. | Mc/MD/G Sg/CD8/Bbtd/Msd/Mca/Mce/Mcv |
| Type | Coupling | Material Standard | ASTM, ANSI, SAE, Uns, DIN, En, ISO, Toct |
| Certificate | ISO9001:2015, ISO14001:2004, API Specification Q1 | Material | Carbon Steel+Plastic |
| Material 1 | Cast Iron, Wear-Resistant Cast Iron, Cast Steel | Pump Model | APP/Wpp/EPP/Aup/Zpp/CPT/Ohhl |
| Types of Welding Parts | OEM/ODM | Material 2 | Stainless Steel, Duplex Ss, Cast Alloy Steel |
| Structure | Flexible | Pump Package | Carton and Wooden Cases |
| Mould | Investment Casting Mould, Sand Casting Mould | Speed | 1000-5400 |
| Origin | China | Testing | Dynamic Balancing |
| HS Code | 84139100 | Production Capacity | 10, 000 Tons Per Year |
| Specification | According to the drawings | Bore Diameter | 10-165 |
| Model NO. | Coupling | Transport Package | Carton and Wooden Cases |
| High Light | precision centrifugal pump coupling ，submersible pump shaft coupling ，customized clamping shaft coupling | ||
DONGGUAN HydroBlue CO.,LTD. is a professional engineering enterprise providing comprehensive technical solutions in fluid machinery, fluid engineering, industrial automation, and frequency conversion systems. Our team of 8 technical professionals in fluid engineering, electrical engineering, and electronic engineering combines deep technical expertise with flexible manufacturing capabilities. Partnerships with Jiangsu University, Chinese Academy of Sciences, and Guangdong University of Technology underpin our capabilities in hydraulic R&D, specialty coating applications, and intelligent industrial drive technologies. Jiangsu University National Research Center of Pumps provides coupling shaft-to-hub shrink fit analysis and combined torsional-bending fatigue evaluation for REXNORD coupling reliability assessment; Chinese Academy of Sciences contributes advanced corrosion inhibitor development and elastomer aging simulation for coupling storage and preservation; Guangdong University of Technology supports automated coupling bore gauge verification and concentricity measurement for consistent hub-to-shaft fit quality in our coupling manufacturing.
Inquire with your pump model and coupling specifications — our engineering team will assess compatibility and provide a detailed technical response.
Our brand provides professional overall technical solutions in fluid machinery and engineering. We specialize in industrial control and drive equipment, mechanical seals, and overseas field engineering solutions. Our ecosystem of specialized technologies and product brands empowers our clients with high-caliber technical guidance, commercial support, and integrated product solutions — including pumps, frequency converters, servo drives, PLC-HMI, industrial control cabinets, motors, mechanical seals and systems, couplings, gearboxes, and engineering solutions (overseas on-site 3D scanning reverse molding of pump replacement parts to your satisfaction, and on-site equipment debugging services by overseas dispatched engineers).
|
Component |
Inspection Parameter |
Method |
Acceptance |
|---|---|---|---|
|
Hub bore |
Bore diameter, roundness, taper |
Dial bore gauge, CMM |
H7 tolerance; roundness ≤ 0.01 mm; taper ≤ 0.02 mm |
|
Hub keyway |
Keyway width, depth, offset |
Keyway gauge, CMM |
P9 tolerance (keyway width); offset ≤ 0.05 mm |
|
Hub flange face |
Face perpendicularity to bore |
Dial indicator on face |
Face runout ≤ 0.05 mm TIR |
|
Grid spring |
Wire diameter, free height, spring rate |
Micrometer, height gauge, load test |
Wire ±0.02 mm; spring rate per spec ±10% |
|
Elastomer spider |
Hardness (Shore D), dimensions |
Durometer, profile CMM |
±3 Shore D; dims ±0.3 mm |
|
Disc pack |
Laminate thickness, hole positions |
Vernier caliper, hole-pattern CMM |
Laminate ±0.1 mm; hole pos ±0.15 mm |
|
Balance |
Residual imbalance |
Dynamic balancing machine |
G6.3 (standard); G2.5 (high-speed option) |
|
Material cert |
Chemical composition, mechanical properties |
PMI, tensile test, hardness test |
Per material standard (ASTM, EN, DIN) |
|
Accessory |
Function |
Available Options |
|---|---|---|
|
Coupling guard |
Personnel protection from rotating coupling |
Sheet metal, expanded metal mesh; ISO 13857 compliant |
|
Grid lubricant |
Reduce friction between grid spring and hub slot |
NGLI #2 EP grease, High-temp grease (250°C) |
|
Split taper bushings |
Quick-mount hub-to-shaft fixation |
QD bushing, Taper-Lock bushing; metric & inch bores |
|
Spacer spool |
Extend coupling length for pump maintenance clearance |
Aluminum (std), Steel, Stainless steel; custom length |
|
Key stock |
Parallel key for hub-to-shaft torque transmission |
DIN 6885 metric, ANSI inch; 1045, SS 304, SS 316 |
|
Set screws / locknuts |
Hub axial retention on shaft |
Hex socket set screw, Shaft locknut + tab washer |
Q1: Can I use a REXNORD coupling designed for a centrifugal pump on a progressive cavity pump?
A: Possibly, but the coupling must be re-selected based on torque and service factor. PCPs have higher starting torque and more torque ripple than centrifugal pumps, so the coupling must be sized with a higher service factor. A grid or gear coupling is usually preferred over a jaw or disc coupling for PCP service. We can re-evaluate the selected coupling against the actual PCP duty parameters.
Q2: What is the recommended coupling spare parts inventory for a pump fleet?
A: For each coupling size in the fleet, stock one replacement flex element (spider, grid spring, or disc pack), at least one spare set of set screws and key stock, and one tube of grid lubricant for each grid coupling in service. Coupling hubs rarely fail before the flex element and do not need frequent spare coverage unless the operation is remote and lead times are long.
Q3: Can the coupling be supplied with a spacer spool for easier pump maintenance?
A: Yes, spacer couplings are available for most REXNORD coupling types. The spacer connects two hub flanges and allows the center section (flex element plus spacer) to be removed without disturbing the hubs on the shafts. This enables pump seal or bearing replacement without re-aligning the motor and pump shafts. Specify the required spacer length (drive-to-pump shaft gap) at order time.
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2006
Total Annual:
$10 Million-US$50 Million
Employee Number:
50~100
Ecer Certification：
Verified Supplier
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