Detail Information
QBY3 PP / PVDF / PTFE pneumatic diaphragm pump adopts plastic wetted components, widely used for strong acid, strong alkali and highly corrosive chemical media. It is driven by compressed air, no electricity required for operation.
The diaphragm fully separates conveyed fluid from internal moving parts to achieve zero‑leakage transfer. Multiple diaphragm materials (NBR, Neoprene, EPDM, PTFE, FEP) are optional for different chemical compatibility.
Features
• PP / PVDF / PTFE plastic pump body, excellent resistance to strong corrosive chemicals
• Self‑priming capability, no priming water needed before startup
• Good particle‑passing performance for slurry and particle‑containing media
• Short‑time dry‑running is permitted (continuous long‑time dry‑running is not allowed)
• Flow rate and head can be stepless adjusted by changing air‑supply pressure
• No rotating shaft seal, low risk of leakage
• Compact structure, few wearing parts, easy installation & maintenance
• Can be submerged in process liquid under proper conditions
⚠️ Important Safety Notes
1. For flammable & volatile fluids: reliable grounding of pump and piping is mandatory to eliminate static hazard.
2. Allowable medium temperature depends on pump body material and diaphragm material. Do not exceed temperature limit of selected components.
3. Max air supply pressure shall not exceed 0.7 MPa.
Applications
Suitable for chemical industry, wastewater treatment, electroplating, pharmaceutical processing for transfer of strong‑corrosive chemicals, acid‑alkali solutions, slurry, toxic and volatile liquids.
QBY3 Pneumatic Diaphragm Pump Technical Parameters
| Model | Max Flow (L/min) | Max Flow (m³/h) | Max Head (m) | Max Suction Lift (m) | Caliber DN (mm) | Air Inlet (in) | Max Particle (mm) |
|---|---|---|---|---|---|---|---|
| QBY3-10 | 18.9 | 1.13 | 70 | 2.5-3 | 10 | 1/4 | 1.5 |
| QBY3-15 | 18.9 | 1.13 | 70 | 2.5-3 | 15 | 1/4 | 1.5 |
| QBY3-20 | 57 | 3.4 | 70 | 4.5-7.6 | 20 | 1/4 | 2.5 |
| QBY3-25 | 57 | 3.4 | 70 | 4.5-7.6 | 25 | 1/4 | 2.5 |
| QBY3-25A | 151 | 9.1 | 70 | 5.4 | 25 | 1/2 | 3.2 |
| QBY3-32 | 151 | 9.1 | 70 | 5.4 | 32 | 1/2 | 3.2 |
| QBY3-40 | 151 | 9.1 | 70 | 5.4 | 40 | 1/2 | 3.2 |
| QBY3-50 | 378.5 | 22.7 | 70 | 5.48 | 50 | 1/2 | 5.48 |
| QBY3-65 | 378.5 | 22.7 | 70 | 5.48 | 65 | 1/2 | 5.48 |
| QBY3-80 | 568 | 34.1 | 70 | 5.48 | 80 | 1/2 | 6.3 |
| QBY3-100 | 568 | 34.1 | 70 | 5.48 | 100 | 1/2 | 6.3 |
Supplier Information
Shanghai Shinjo Valve Co., Ltd.
Verified Supplier
Certifications:
