Vent Cap – Safe Packaging Solution for Fertilizers & Crop Protection Products

Introduction to Vent Cap

In the agricultural sector, especially in the production and distribution of fertilizers, crop protection products, and biological preparations, packaging plays a crucial role. During storage, many products may generate gas, leading to swollen caps, leakage, or deformed packaging, which directly affects product quality and transportation safety.

To solve this issue, the vent cap (Vent Foam Cap) is considered the optimal choice. With a special design integrating a venting foam insert, the cap allows gas to escape while keeping the liquid intact, ensuring safe and stable packaging.

Product Information – PHL Vent Cap

Product name: Vent Cap (Vent Foam Cap)

• Size: Ø50mm
• Structure: Plastic cap with vent plug and sealing foam

1. PP Plastic Cap

• Inner diameter: 50mm
• Material: Virgin PP plastic, safe and durable
• Feature: Guarantee cap with vent hole

2. Vent Plug / Air Valve

• Material: HDPE
• Inner diameter: 13.00mm
• Outer diameter: 17.20mm
• Height: 14.90mm

3. PE Foam Insert

• Material: PE foam
• Diameter: 46.70mm

Color options: Yellow, white, blue, red… (customized to brand requirements)

Key Advantages of the Vent Cap

The smart ePTFE membrane of the vent plug is made from Polytetrafluoroethylene, which is liquid-resistant while allowing optimal airflow. With its chemical inertness, high heat resistance, and ability to adapt to pressure changes, the ePTFE membrane helps balance the internal pressure of the bottle, reducing swelling or leakage. As a result:

• Safe Venting: Ensures pressure balance inside and outside the container.
• Anti-Oxidation & Anti-Evaporation: Preserves product quality and minimizes loss during storage.
• High Durability: Made from virgin PP plastic, resistant to impact and cracking.
• Aesthetic & Branding: Standardized design, diverse colors, aligned with brand identity.
• Ease of Use: Compatible with various plastic bottles used in agriculture and chemicals.

Applications of Vent Cap

Vent caps are recommended for liquid products from 250mL up to 15,000mL, especially those with high gas emission such as:

• Biological preparations
• Liquid fertilizers
• Veterinary – aquaculture products with biomass and gas formation

When to Use Vent Caps?

• Products with high gas or biomass generation
• Products that easily corrode seals
• Packaging that often suffers from bottle swelling or deformation
• New products requiring a safe and sustainable packaging solution

Why Choose P H L Plastic

Founded in 2011, PHL Plastic Co. has become one of the leading manufacturers of plastic packaging for the agrochemical, aquaculture, and animal husbandry industries. With the motto: “Where customers place their trust in quality”, PHL is committed to delivering reliable packaging solutions and professional services.

• Large-scale production capacity: Modern factory, closed production lines, meeting high-volume orders with fast delivery.
• International quality standards: Certified with ISO 9001:2015 (Quality Management) and ISO 14001:2015 (Environmental Management).
• Comprehensive packaging solutions: Beyond caps and bottles, P H L provides end-to-end packaging solutions to ensure durability, safety, and cost efficiency.
• Continuously innovating, adopting new technologies, and developing sustainable materials aligned with the global “green packaging” trend.
• Competitive pricing: Optimized production and material sourcing for cost-effective, high-quality products.
• Trusted partner: Long-term packaging supplier for many enterprises in the agriculture, forestry, and aquaculture industries.

PHL JOINT STOCK COMPANY

Hotline: +84 966 977 958

Sales: +84 908 806 022 – +84 937 830 879 – +84 975 062 026

Address: Lot ME1-1, Road No. 5, Duc Hoa 1 Industrial Park, Hamlet 5, My Hanh Commune, Tay Ninh Province, Vietnam