How to select a pump head?

Key Factors for Selecting a Plastic Pump Head

1. Liquid Compatibility
Viscosity:
Water-thin liquids (toners, sanitizers): Choose fine-mist spray nozzles.
Thick creams/gels (lotions, hair products): Opt for wide-bore pumps with larger chambers.
Chemical Properties:
Acidic/alkaline solutions: Require chemical-resistant polymers (e.g., PP with silicone seals).
Oils/solvents: Avoid rubber seals; use silicone or TPE.

2. Functional Requirements
Dispensing Type:
Sprays: For even coverage (*: For even coverage (cleaners, perfumes).
Foams: For air-liquid mixing (hand soaps).
Streams: For precise application (serums, oils).
Dosing Control:
Fixed output (e.g., 0.5ml/pump) vs. adjustable settings.

3. User Experience
Ergonomics:
Low actuation force for frequent use (e.g., hand soap).
Soft-touch coatings for comfort.
Safety Features:
Child-resistant locks (medications).
Twist-lock mechanisms (travel products).

4. Packaging Integration
Bottle Fit:
Thread size compatibility (e.g., 24mm, 28mm).
Dip tube length matching bottle height.
Aesthetics:
Color/finish alignment with brand (e.g., matte, metallic).

5. Durability & Environment
Usage Frequency:
Heavy-use pumps:
Heavy-use pumps (e.g., kitchen cleaners): Require stainless-steel springs.
Storage Conditions:
UV exposure: Avoid PVC/ABS (yellowing risk).
High humidity: Prioritize corrosion-resistant springs.

6. Regulatory Compliance
Food/Pharma Products:
FDA/EU-compliant materials (no BPA/phthalates).
Eco-Certifications:
Recycled/recyclable materials (e.g., mono-PP construction).

Selection Checklist