Product Summary

Panjang Solar Water Drainage Clips are precision-engineered maintenance accessories designed to eliminate water stagnation and dust accumulation on the lower edges of PV modules.

By utilizing advanced capillary action, these PV Module Cleaning Clips automatically siphon off standing water, preventing the formation of "mud rims" and the PID (Potential Induced Degradation) effect.

Installing these clips can increase overall solar energy yield by 5% - 12% while significantly reducing O&M costs.

• ✔ Anti-Stagnation Technology: Engineered to break surface tension, allowing rainwater and snowmelt to flow freely over the module frame, even at low tilt angles.
  
  

• ✔ High-Durability Materials: Manufactured from UV-stabilized, aging-resistant polymers or Stainless Steel 304, ensuring a 20-year outdoor lifespan in extreme climates.
  
  

• ✔ Universal Frame Compatibility: Features a secure, tool-free "clip-on" design, precision-molded for standard 30mm, 35mm, and 40mm solar panel frames.
  
  

• ✔ Sludge Removal Efficiency: Automatically clears accumulated dust and environmental pollutants, keeping the lower cells clear for maximum sunlight absorption.
  
  

• Material: UV-Resistant Plastic / SS304 / EPDM.
  
  

• Applicable Frame: 30mm, 35mm, 40mm.
  
  

• Operating Temp: -40°C to +85°C.
  
  

• Function: Automatic Sludge Removal & Drainage.

Physical Dimensions & Frame Compatibility

• Standardized sizing for 30mm-40mm PV module frames.

• Model No.	Frame Height	Bahan	Color	Lifespan
  LZ-DC-30	30 mm	UV-Stabilized Polymer	Black / Grey	20 Years
  LZ-DC-35	35 mm	UV-Stabilized Polymer	Black / Grey	20 Years
  LZ-DC-40	40 mm	UV-Stabilized Polymer	Black / Grey	20 Years
  LZ-DC-SS	Universal	Stainless Steel 304	Silver	25 Years

Material Reliability & Environmental Testing

• Long-term durability verified by international industry standards.

• Test Item	Standar	Test Condition	Result
  UV Resistance	ISO 4892-2	3,000h Xenon Arc Exposure	No Cracking / Deformation
  Salt Spray	IEC 61701	Level 6 (Coastal Grade)	Passed (Zero Corrosion)
  Thermal Cycle	IEC 61215	-40°C to +85°C (200 Cycles)	Material Stable
  Flame Retardancy	UL 94-V0	Vertical Burning Test	Self-Extinguishing

Avoid Pitfalls:

• Incorrect Size Selection: Never force a 35mm clip onto a 40mm module frame. This creates excessive tension that will lead to material fatigue and premature cracking. Always verify the frame depth before ordering.
  
  

• Placement Geometry: For maximum efficiency, clips must be placed at the lowest physical point of the tilted module. Incorrect placement (e.g., in the middle of a high-side rail) will fail to activate the capillary siphoning action.
  
  

• Frame Obstruction: Ensure the clip is seated flush against the glass and the frame edge. Any gap between the clip and the module surface will allow sludge to bypass the drainage channel, rendering the component ineffective.
  
  

Perfect Fit Assembly:

• Standard Integration: These clips are designed to complement our Solar Mid Clamps Dan End Clamps, providing a complete structural and maintenance solution for your photovoltaic array.
  
  

• Hardware Compatibility: When using stainless steel clips, ensure they are secured in a way that does not scratch the anodized coating of the AL6005-T5 frames to prevent localized oxidation.
  
  

Quality Control & Logistics:

• ISO 9001 Certified: Each batch undergoes rigorous UV Accelerated Weathering Dan Salt Spray Testing to ensure long-term outdoor reliability.
  
  

• Export Hub Shipping: Bulk packed in moisture-proof cartons, optimized for rapid sea or air freight from our Yongnian fastener manufacturing base.

• Q: Will the drainage clips become loose or fall off during high winds or heavy snow?

  • A: No. Longze Solar Water Drainage Clips are engineered with a high-tension, precision-molded "snap-on" locking mechanism. Once seated on the 30mm/35mm/40mm aluminum frame, the mechanical friction ensures the clip remains securely in place even under extreme wind loads (up to 2400Pa) and vibration. The curved siphoning edge is designed to stay flush against the glass surface without shifting over time.
    
    

• Q: How does the UV-stabilized polymer compare to Stainless Steel 304 in terms of lifespan?

  • A: Both materials are designed for long-term outdoor exposure. Our UV-stabilized polymer clips are tested under ISO 4892-2 (3,000h Xenon Arc) to ensure a 20-year service life without embrittlement. However, for coastal projects or high-salinity environments, we recommend our Stainless Steel 304 version, which offers superior acid-base corrosion resistance and an extended 25-year structural warranty, matching the full lifecycle of your PV modules.