Established in 1998, China Guanda Hose Technology Co., Ltd. is a professional sewer pipe manufacturer and wholesaler of hoses and tubes. Our annually capacity of various kinds of hoses is more than 5,000,000 meters. Our customized sewer pipes products are applied in industrial equipment, hotels, villas, toilets, and kitchens. They are widely used in the field of aerospace, metallurgy, petrol-chemical, machinery, architecture, shipping, vacuum, power and light industries.

An assembly for introducing a pipe liner into a sewer pipe includes a launcher defining a passageway through which a resin impregnated pipe liner and bladder tube assembly passes. An inflatable member mounted to the launcher assembly is actuatable between an inflatable condition and a deflated condition. The pipe liner and bladder tube are secured in place by expanding the inflatable member outward against the inner surface of the sewer pipe. Air pressure drives the bladder tube and pipe liner into the sewer pipe and the bladder tube remains in place until the pipe liner hardens. An assembly for introducing a pipe liner into a sewer pipe, said assembly comprising; a launcher defining a passageway through which said pipe liner passes; an inflatable bladder assembly for everting said pipe liner into said sewer pipe; an inflatable member attached to said launcher and actuatable between an inflated and deflated condition, said inflatable member.

Bituminized fiber drain and sewer pipe (a.k.a. Orangeburg pipe). This type of sewer pipe (2” - 18” diameter) was manufactured as an oval conduit* for wiring, etc., from the 1890s to the early 1940s; thereafter, it was made as a round pipe until the 1970s. (There is over 1200 miles of this conduit in the walls and floors of the Empire State Builidng in New York City.) Orangeburg pipe is comprised of cellulose fibers impregnated with hot coaltar pitch. The joints are gasketless. The pipe often softens and deforms with age, allowing infiltration and root intrusion. Two varieties exist: one with solid (homogeneous) walls and one with laminated walls. This pipe material was widely used in house laterals for over 70 years -- until pvc took over. including an outer diameter corresponding with an inner diameter of said sewer pipe, said inflatable member securing at least a part of said launcher and said inflatable bladder assembly within the sewer pipe in said inflated condition.