Sales Miss Europe: 159-7414-3465 Online Q: 1922601218 (pro, water supply equipment online consultation free shipping ohhh) national toll-free hotline: 400-086-8955 automatic negative pressure water equipment Description: wear-resistant mechanical seal sealing, no leakage and long life, suitable for water, air conditioning systems, cooling towers, high-rise buildings, bathrooms and other hot and cold water pressure. Also applies to plastic machine cooling water pressure, chemical process cooling towers Sheung Shui and transportation sectors of the national economy fresh, brackish or physical properties watery liquid. Liquid temperature is less than 100 degrees, etc., such as high temperature, please use high-temperature pipeline pump. Automatic negative pressure water equipment Material: pump, pump cover, impeller, shaft made of stainless steel. Automatic negative pressure water equipment and strong suction pump, stainless steel (AISI304) of the pump, the envelope and the adjustment ring, cast aluminum motor mount, synthetic polymer impeller; stainless steel shaft; carbon / ceramic mechanical seal. Automatic negative pressure water equipment enclosed asynchronous motor overheating and overload protection, single-phase motor capacitor eternal protection; the protection of three-phase motors, the choice of a suitable overload protection device. Automatic negative pressure water equipment operating range: Maximum flow is 5.7m3 / min maximum lift of 45 m Liquid temperature range: 0 ℃ -35 ℃ using standard (ITL): EN60335-2-41 highest automatic negative pressure water equipment Ambient temperature: 40 ℃ maximum self-absorption depth: 8 m automatic negative pressure water equipment Maximum working pressure: 8bar (800Kpa) automatic negative pressure water equipment protection factor: IP44 Insulation class: F - automatic negative pressure water Device Features: small size, light weight, easy to install and maintain. The impeller is plastic, and the rest are stainless steel; high cost; advanced hydraulic model design, floating impeller and center seal, high efficiency, help reduce operating costs; high strength plastic impeller, may be small in impurity particles medium, and long service life; built-in check valve, which can effectively reduce water hammer damage the pump and motor; motor joints are NEMA standards. Taco (Tucker) or Franklin (Franklin) motor optional; Flow Range: 0.5-20M3 / H, power range: 0.25-7.5KW. Automatic negative pressure water equipment Usage: automatic negative pressure water equipment is widely used in deep water, building water supply, agricultural irrigation, gardens and fountains and other systems, and other industrial water. - Automatic negative pressure water equipment installation requirements: should be carefully examined within the pump body no negative frequency of abortion and whether the hard things before installation to avoid damage to the impeller and the pump is running. Fully automatic negative pressure water supply equipment installation pipeline processing amount shall not be allowed on non-negative variable-speed pump, the pump in order to avoid distortion, affecting the normal operation. Automatic negative pressure water equipment to tighten the bolt, so no negative impact on the vibration frequency when starting pump performance. Automatic negative pressure water equipment in the inlet and outlet piping pump installation control valve, pressure gauge installed in the vicinity of the pump outlet to control the pump within the rated operating conditions to ensure the normal use of the pump. Automatic negative pressure water equipment exhaust pipe loaded check valve should be installed outside the gate. The installation is divided into rigid coupling installation and flexible connection installed. Sales Miss Europe: 159-7414-3465 Online Q: 1922601218 (pro, water supply equipment online consultation free shipping ohhh) National Hotline: 400-086-8955 Address: Yuhua District, Italy all the way to the modern business center B Star Block B4062 Address: Industrial Park, Changsha Hanson long Shali Tuo water, so you have no worries with water!