Rainwater heads are categorized into87, 79, and 65 models, three types of siphon rain gutters, weir-type rain gutters. Generally, the 87 model (79, 65 model upgrade) and siphon rain gutters are used. The 87 model rain gutter is essentially a flat rain gutter, sometimes referred to as a flat siphon rain gutter, but it is not a true siphon rain gutter; it is only "semi-siphon." It only activates the siphon function when the rain in the channel completely covers the top of the gutter's deflector. Therefore, the 87 model rain gutter is primarily used in gravity drainage systems. Nowadays, many siphon rainwater drainage systems also use the 87 model as a siphon rain gutter, but compared to systems using a true siphon rain gutter (submerged collecting bowl type), its siphon drainage capacity is significantly reduced, especially during rare heavy rainstorms that occur once every few decades or even a century, making it difficult to timely drain the roof rainwater.

  Our company offers87 model rain head, available in sizes: De56, De63, De75, De90, De110; also customizable to meet customer requirements in sizes such as De125, De160, De200, etc.Concrete gutters and steel gutters are divided into two categories.Purely adoptedThe base is made of 304 stainless steel, the deflector is made of cast aluminum, and the tail pipe is constructed from new HDPE material for siphon rainwater pipes, which can be directly heat-fused with the HDPE pipes in the system. The base diameter can reach 27cm, with a thickness of generally over 1.43mm, and the deflector has a diameter of 24cm and a height of 5.5cm.Our company's production87 Type Rain Gutter - Craftsmanship, Durable, Attractive AppearanceExquisiteThe specifications such as atmospheric pressure and displacement fully comply with the national industry standards!