Product Name: Brass Male and Female Elbow
Connection: Male; Female
Size: 1/2''F × 1/2''M; 3/4''F × 3/4''M; 1''F × 1''M
Surface Treatment: Natural; Nickel Plated
Certificate: ISO9001: 2015; CE; ISO 14001
Warranty time: 5 years
Offer sample: Available
FOB Price(Ningbo): USD 0.60 - USD 3.10
Delivery time: in 20 days after down payment
Port: Ningbo Port or Shanghai Port
Packing: ploy bag+inner box+export carton+4 packing belts
Offer samples: Yes
Cast iron piping was traditionally made with one spigot end(plain) and one socket or hub end(cup shaped). In use, the spigot of one segment was placed into the socket of the preceding one and a ring of oakum was forced down into the joint with a caulking iron. After this the remainder of the space in the hub was filled up. Ideally, this would be done by pouring in molten lead, allowing it to set, and hammering it tightly with a caulking tool. If this was not possible due to position or some other factor the joint could alternatively be filled with lead wool or rope heavily packed down one layer at a time.
Cast iron DWV fittings are still used in premium construction because they muffle the sound of wastewater rushing through them,:149 but today they are rarely joined with traditional lead joints. Instead, pipe and fittings with plain (non-belled) connections are butted against each other, and clamped with special rubber sleeve (or "no-hub") fittings.:71 The rubber sleeves are jacketed with stainless steel clamps, which compress the rubber to make a tight seal around the pipes and fittings.:71Although the materials are not cheap, they are durable (the rubber is typically neoprene or PVC).
An advantage of flexible rubber fittings is that they can accommodate small misalignments, and can be flexed slightly for installation in tight locations.:147 If necessary, the joints can be disassembled later, and the fittings and pipe may be reconfigured; however, it is often not customary to re-use the clamps and rubber sleeves.