PET Vacuum Air Cylinder Float User Guide

I. Product Features & Core Advantages

1. Structural Strength: 3-5mm wall thickness, pressure resistance up to 0.5MPa, suitable for 10-15m deep aquaculture. No embrittlement or deformation at -20℃ to 60℃;
2. Buoyancy Control: 5-20L volume options, single net buoyancy 8-30kg. Vacuum-sealed design ensures buoyancy decay ≤5%/year, far exceeding traditional foam floats;
3. Environmental Adaptability: UV-resistant coating (UV resistance class 8+), 1000-hour salt spray test without cracking. Compatible with 316 stainless steel shark clips, PA66 U-type cable ties and other accessories.

II. Application Scenarios & Synergy with Core Products

1. Oyster Farming System
   Match with Cylinder Oyster Seeding Mesh Tumbler, symmetrically bound by PA66 cable ties (1 piece 10L float for every 2 tumblers). Adjust suspension depth to 1.5-2m, and fix to aquaculture rafts with plastic storm clips to enhance wind resistance.
2. Seaweed/Shellfish Hanging Culture
   Connect 3-5 pieces 5L floats into a buoyancy group, link HDPE Oyster Mesh Bag or kelp ropes with 316 stainless steel shark clips. Each group can carry 20kg cultures, suitable for large-scale intertidal zone farming.
3. Emergency Buoyancy Supplement
   Add 15L large-size floats before typhoon season, connect to existing buoyancy systems via quick connectors to enhance overall anti-overturning capacity and reduce equipment falling risk.

III. Installation & Operation Steps

1. Inflation Preparation
   Use the matching manual pump (recommended pressure 0.2-0.3MPa), insert into the top valve core. Inflate until the cylinder stands upright without depression (over-inflation may cause seal failure);
   Test air tightness by applying soapy water to the valve—no bubbles indicate qualification.
2. System Assembly
   • Connection with Tumblers: Bind to Cylinder Oyster Seeding Mesh Tumbler at pre-set Slots using 10mm width PA66 cable ties (wrap 3 circles at each end, tighten and cut excess to ≤5mm);
   • Raft Fixation: Fix float groups to Φ20-30mm HDPE main cables with plastic storm clips, keeping 50-80cm between clips for even force distribution.
3. Depth Adjustment
   Adjust buoyancy according to species: 15kg buoyancy per square meter for oyster seedling stage (1-3cm), 25kg for adult stage;
   To sink to specific water layers, hang weights at the bottom, control depth by adding/removing weights.

IV. Maintenance & Care

1. Daily Inspection: Check valve tightness and surface damage weekly. Fill scratches (depth＞1mm) with special PET repair agent to prevent seawater infiltration;
2. Cleaning: Rinse surface with fresh water quarterly to remove algae (use soft brush, avoid steel wool);
3. Storage: Deflate and lay flat in dry, ventilated area during off-season. Avoid direct sunlight, stack no more than 5 layers (prevent extrusion deformation).

V. Safety Precautions

• Avoid sharp objects or open flames; keep away from high-temperature operations like electric welding;
• Use reinforced floats (5mm wall thickness) for water depth over 15m, with 20% buoyancy redundancy;
• Recycle waste floats (100% recyclable PET) and prohibit arbitrary marine disposal.