Model No.: HWSV07
Outer Diameter: 16.5mm
Cross Slit Size: 7.8*7.8mm
Application: Sports Water Bottles
MOQ: 50,000pcs/ lot
Samples: Free Samples, Freight Collect
The 16.5mm silicone slit valve is a high-performance liquid control component designed for sports water bottles and high-flow dispensing systems. It is engineered to meet the fast hydration demands of athletes and active users, combining rapid liquid release, precise self-sealing, and efficient air compensation in a compact structure. Its optimized slit geometry and reinforced design make it ideal for sports, fitness, and outdoor hydration applications.
Unlike conventional dispensing valves, this model is specifically developed for high-flow drinking with minimal squeezing effort, enabling quick hydration during training, competition, or outdoor movement. The precision slit structure provides instant self-sealing under reverse pressure, effectively preventing leakage during shaking, inversion, or transportation.
The valve also features a built-in air compensation function, which stabilizes internal pressure during continuous dispensing and prevents bottle deformation. Combined with its ergonomic one-hand operation design, it supports convenient use during running, cycling, hiking, and gym workouts without interrupting activity.
Manufactured from premium Liquid Silicone Rubber (LSR), the valve offers excellent flexibility, durability, and long-term elastic recovery. It is available in FDA compliant and LFGB certified food-grade materials, ensuring full global food-contact safety for both European and North American markets.
Production is carried out through precision LSR injection molding, automated high-accuracy punching, and strict dimensional inspection to ensure slit consistency. This controlled process guarantees stable sealing performance, uniform flow behavior, and minimal tolerance variation across mass production.
Compared with standard slit valves, the 16.5mm version features a reinforced wall thickness design, improving elasticity, extending service life, and enhancing resistance to repeated compression fatigue. It is a reliable solution for high-frequency sports use, offering consistent performance for both sample development and large-scale commercial production.
Item Name | 16.5mm Silicone Slit Valve |
Material | FDA& LFGB Food Grade Liquid Silicone |
Process | Liquid Injection Molding |
Color | Clear |
Hardness | 30 Shore A |
Outer Diameter | 16.5mm |
Cross Slit Size | 7.8*7.8mm |
Application | Sports Water Bottles |
The standard configuration of the 16.5mm silicone slit valve features a 7.8 × 7.8 mm cross-slit opening, specifically optimized for controlled high-flow dispensing. This slit structure delivers balanced performance, combining fast yet stable liquid discharge with reduced clogging risk, smooth cut-off after each squeeze, and consistent mouth-directed flow guidance (≤30° angle). The result is a more controlled and comfortable drinking experience, even under rapid hydration conditions.
While primarily developed for sports hydration systems, this valve is also suitable for:
Sports water bottles (high-frequency drinking use case)
Fitness and gym bottles
Outdoor hydration systems
High-flow liquid dispensing containers
Food & beverage squeeze applications requiring leak-proof control
Its performance advantages make it especially valuable for premium sports bottle brands seeking differentiated user experience.
From a performance perspective, it offers clear advantages for modern hydration packaging: high-flow dispensing without spillage, strong sealing under dynamic movement, and full food-grade compliance for global markets. It is also engineered for sports-grade user behavior and can be customized in slit geometry and hardness, making it an ideal upgrade component for brands aiming to improve drinking speed, usability, and leak resistance simultaneously.
The 16.5mm silicone slit valve is designed for high-flow sports hydration, enabling fast liquid release with minimal squeezing force. It allows athletes and active users to drink quickly during training or outdoor activities without interrupting movement.
Yes. The built-in air compensation system balances internal pressure while drinking, ensuring smooth and continuous flow while preventing bottle deformation during repeated squeezing.
Yes. It is designed for one-hand operation, making it ideal for running, cycling, gym workouts, hiking, and other high-mobility activities where convenience and speed are critical.
The valve is made from premium Liquid Silicone Rubber (LSR) and is available in FDA and LFGB certified food-grade materials, ensuring full compliance for global food-contact applications in Europe and North America.
In addition to sports bottles, it is widely used in fitness bottles, outdoor hydration systems, high-flow squeeze containers, and food & beverage dispensing packaging requiring reliable leak-proof and controlled flow performance.
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