Frequently asked questions about equipment selection, pricing, certification and tendering.
A swiftwater rescue life jacket provides buoyancy ≥150N (ISO 12402-5), with 3M reflective front/back and a quick-release buckle plus tow loop — suitable for swiftwater, flood and urban-waterlogging rescue.
Glass-fiber assault boats are durable for high-frequency duty; RIBs are lighter and easier to store for mobile tasks. A 3.8-4.8m craft pairs with a 15-40HP outboard — pick 30-40HP for heavy transfer or fast current, 15-30HP for routine patrol. Longsheng'an provides configuration and tender support.
The water rescue projectile reaches ≥230m and auto-inflates into a life ring on landing; the line projectile crosses swiftwater or canyons to set up a crossing. The launch tube has a safety and must be operated by trained personnel.
The 3mm neoprene wetsuit suits 10-25°C water for prolonged wading; worn with helmet, boots and gloves it forms a full-body protection system for swiftwater and cold-water rescue.
A floating pump draws water directly from the surface (≈48m³/h) and suits river/lake and waterlogged spots without power; a high-flow mobile drainage pump station delivers 1000-3000m³/h for concentrated urban and underground dewatering.
The telescopic carbon-fiber pole collapses to ≤1.6m and extends to ≥7m (1.6-7m options), weighs ≤2.5kg, with quick-swap hook/loop/net for remote delivery from bank, bridge or ice.
The RC rescue robot reaches ≥3 m/s, has a ≥500m control range, can tow 2-3 victims simultaneously, is IP68 rated, and is ideal for unmanned rescue in hazardous swiftwater and flood waters.
Rated 1000-3000m³/h with 8-20m head, trailer/truck-mounted and mobile, diesel-generator or mains powered — for urban flooding and underground-space dewatering.
Max depth ≥100m (optional 300m), with 4K camera, lights and forward sonar for underwater SAR, bridge/tunnel inspection and object recovery, replacing divers in high-risk work.
Test reports and factory certificates are standard; government / enterprise tenders usually also need supply certificates, parameter response sheets and bidding documentation. We supply a complete documentation set.
We recommend completing all purchases 1-2 months before flood season to leave time for production, logistics and acceptance. Common items (life jackets, line throwers etc.) are usually ex-stock; bundled configurations follow contract lead time.
The price of high-flow mobile drainage pump stations mainly depends on specifications and configuration. Industry-standard quotation ranges vary significantly by model, and quotations must be issued based on the equipment list, quantity, and acceptance requirements. Longsheng'an Fire Protection offers free selection solutions and quotations with complete qualifications. Tel: 13060031111.
Remote-controlled water rescue robots typically have a battery life of 30-60 minutes, depending on the model and load, with 45 minutes being the most common. Regarding water currents, most products can operate in rapids with flow speeds of 3-5 m/s, while certain high-end models can handle up to 6 m/s. It is recommended to pay close attention to motor power and thruster design when making a selection, as higher power translates to stronger current resistance. In actual use, on-site water flow and distance should be evaluated to ensure sufficient battery capacity for round trips. Additionally, these robots generally support a remote control range of 500-1000 meters, making them suitable for nearshore and open-water rescue operations. For extended continuous operations, spare batteries or alternating use of two units may be considered.
The throwing line used with a life-throwing device is typically made of low-stretch, water-resistant polypropylene or nylon, and retains more than 90% of its strength after immersion, allowing normal use. However, it should be noted that wet rope is more prone to kinking and tangling, so the coils should be straightened out before use, and the rope should be retrieved promptly and dried after throwing. The rope length in mainstream industry configurations is generally 100-150 meters, with a rope diameter of 3-4 mm and a breaking strength of ≥150 kg, sufficient for routine water rescue. If the current is swift or the distance is far, it is recommended to choose a pneumatic type (projection distance ≥100 meters) or a pyrotechnic type (≥180 meters), and to regularly check the cylinder pressure or the expiration date of the pyrotechnic charge. After use, the rope should be washed with fresh water and dried in the sun to avoid wear from salt or sediment, thereby extending its service life.
Conventional floating boat pumps are not recommended for pumping high-concentration mud slurry over extended periods. Short-term pumping of floodwater containing a small amount of sand and silt is acceptable, but when there is a lot of debris, a filter screen must be installed and cleaned frequently. A floating boat pump draws water through a float that keeps it on the water surface. It typically has a diameter of 50–100 mm, a flow rate of about 30–100 m³/h, and a head of 15–30 m. Most models allow solid particles of 10–25 mm to pass through. Branches, plastic bags, and weeds in floodwater can easily clog the impeller and foot valve. It is recommended to install a filter cage at the water inlet and inspect it every 1–2 hours of operation. If the medium has a high sand content and high viscosity, a slurry pump or a mobile drainage pumping station should be used instead. Floating boat pumps are more suitable for relatively clean waterlogging drainage and emergency water supply. When selecting a model, the manufacturer's rated maximum passing particle size and medium requirements should be taken as the basis to avoid out-of-range use that could cause impeller wear or motor overload.
Conclusion: The operational difficulty is not high, and ordinary rescue personnel can get started after short-term training, but swiftwater environments still require specialized training. Remote-controlled water rescue robots usually use a single-hand remote control or dual-joystick control, and the logic for forward movement, steering, and differential adjustment is similar to that of common remote control devices. Generally, 1 to 2 days of training are enough to master basic navigation and rescue actions. Mainstream models have an unloaded speed of about 3 to 6 meters per second, a remote control distance of about 300 to 1000 meters, and an endurance of about 30 to 60 minutes. In actual rescue operations, the difficulty is not in the remote control itself, but in judging the direction of the current, the approach angle, and preventing entanglement. It is recommended to practice first in still water or slow currents, then gradually move into swiftwater scenarios, and combine with equipment such as throwers and rescue poles to form a combined rescue solution.
Selection mainly depends on total accumulated water volume, catchment speed, and drainage distance—you can't judge by flow rate alone. General industry guidelines: for medium water accumulation scenarios such as urban underground garages and tunnels, 500–1000 m³/h is typically chosen; for large-area waterlogging or farmland drainage, 1000–3000 m³/h is commonly used, and large mobile pump stations can reach 3000–5000 m³/h. At the same time, check the head, usually 10–30 m; the higher the head, the more noticeable the actual flow rate decline. It is recommended to estimate the required flow rate as "accumulated water volume ÷ allowable emptying time," then allow a 20%–30% margin, and determine it comprehensively in combination with pump diameter, suction lift, and on-site power supply (diesel engine or electric motor). Specific parameters are subject to the manufacturer's measured performance curve.
结论：常规救生抛投器采用可重复充装的高压气瓶，每次使用后需回充，日常待机一般每3~6个月检查一次压力。抛投器多以20~30MPa（约200~300bar）压缩空气或CO₂为动力，气瓶容量常见0.2~0.5L，满压状态下可完成多次抛射，具体次数取决于抛绳重量与射程设定，通常射程60~100m、抛绳直径4~6mm。行业通用做法是：使用后立即补气并做密封性检查；待机期间每月目视检查压力表，压力低于额定值80%应补气；每6~12个月由专业机构做水压试验或按厂家周期更换气瓶。气瓶属压力容器，严禁超压充装、暴晒和碰撞，发现阀口漏气、瓶体锈蚀应停用送检。
激流救援救生衣和普通救生衣核心区别在于抗冲击、抗翻滚和快速解脱能力，激流场景必须穿专用款。普通救生衣浮力约7.5-10kg，多为背心式，落水后易被水流掀翻、卡扣被杂物挂住。激流救援救生衣浮力通常≥15kg，采用前片大浮力、后片低浮力设计，帮助落水者保持面部朝上；配备快速解脱腰带、牛尾绳挂点和反光标识，可承受3-5m/s流速冲击。行业通用口径要求通过EN ISO 12402或同等标准，并具备裆带防上窜。选购时重点看浮力值、解脱扣位置和是否带救援拖拽系统，普通救生衣不建议用于激流救援。