Filter Pumps
The filter pump (also widely recognized as a chemical transfer pump or heavy-duty process pump) is a close-coupled, highly efficient fluid handling unit engineered with exceptional self-priming capability and robust dry-running resistance. This corrosion-resistant self-priming pump is universally deployed across the electroplating, microelectronics, chemical manufacturing, tanning, textile dyeing, industrial wastewater treatment, and air-scrubbing sectors to safely transport aggressive acidic/alkaline chemical solutions and highly corrosive industrial effluents.
The modular structural architecture typically consists of a high-strength pump volute (body), a backplate, an optimized impeller dynamic assembly, a specialized shaft seal mechanism, and an integrated flapper-style check valve.
- Volumetric Flow Rate: 25 m³/h to 65 m³/h
- Total Dynamic Head: 5.5 m to 20 m
- Motor Power Output: 5 HP to 10 HP
- Industry Industry Aliases: Large-head chemical pump, horizontal dosing pump, acid-alkali resistant self-priming pump, belly-style process pump.
- Premium Fluid End Materials: The pump casing and wetted components are molded from high-grade FRPP (Fiberglass Reinforced Polypropylene) or virgin PVDF (Polyvinylidene Fluoride), providing absolute chemical compatibility against aggressive strong acids, oxidizers, and concentrated alkalis.
- Thermal Operating Thresholds:
- FRPP Configurations: Optimized for solution temperatures up to 65°C.
- PVDF Configurations: Engineered for high-temperature chemical applications up to 90°C. - Advanced Dry-Run Prevention: The pump can be equipped with an innovative self-cooling shaft seal matrix. This closed-loop heat dissipation design utilizes the fluid chamber's residual volume to cool the seal face, effectively preventing thermal cracking and seal failure during unexpected liquid-starvation or waterless dry-running conditions.
Our high-volume chemical circulation systems are standard-configured and customized based on the following engineering parameters:
| Model | Inlet/Outlet Port | Electrical Phase (Φ) | Motor Poles (P) | Horsepower (HP) | Performance Curve | Rated Flow (m³/h) | Rated Head (m) | Weight (kg) |
| | 3" x 3" | 3 | 2 | 5 | a | 25 / 40 / 45 | 16 / 11 / 5.5 | 70 |
| | 3" x 3" | 3 | 2 | 7.5 | b | 25 / 40 / 60 | 17.5 / 15 / 10.5 | 120 |
| | 3" x 3" | 3 | 2 | 10 | c | 25 / 50 / 65 | 20 / 16.5 / 12.5 | 140 |
